e276548b |
1 | // Created on: 2013-08-27 |
2 | // Created by: Denis BOGOLEPOV |
3 | // Copyright (c) 2013 OPEN CASCADE SAS |
4 | // |
973c2be1 |
5 | // This file is part of Open CASCADE Technology software library. |
e276548b |
6 | // |
d5f74e42 |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
973c2be1 |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
e276548b |
12 | // |
973c2be1 |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
e276548b |
15 | |
b7cd4ba7 |
16 | #include <OpenGl_Workspace.hxx> |
17 | |
25ef750e |
18 | #include <Graphic3d_TextureParams.hxx> |
fc73a202 |
19 | #include <OpenGl_FrameBuffer.hxx> |
b7cd4ba7 |
20 | #include <OpenGl_PrimitiveArray.hxx> |
fc73a202 |
21 | #include <OpenGl_VertexBuffer.hxx> |
e276548b |
22 | #include <OpenGl_View.hxx> |
fc73a202 |
23 | #include <OSD_File.hxx> |
24 | #include <OSD_Protection.hxx> |
e276548b |
25 | |
26 | using namespace OpenGl_Raytrace; |
27 | |
28 | //! Use this macro to output ray-tracing debug info |
fc73a202 |
29 | // #define RAY_TRACE_PRINT_INFO |
e276548b |
30 | |
31 | #ifdef RAY_TRACE_PRINT_INFO |
32 | #include <OSD_Timer.hxx> |
33 | #endif |
34 | |
e276548b |
35 | // ======================================================================= |
36 | // function : UpdateRaytraceGeometry |
37 | // purpose : Updates 3D scene geometry for ray tracing |
38 | // ======================================================================= |
84c71f29 |
39 | Standard_Boolean OpenGl_Workspace::UpdateRaytraceGeometry (GeomUpdateMode theMode) |
e276548b |
40 | { |
41 | if (myView.IsNull()) |
42 | return Standard_False; |
43 | |
84c71f29 |
44 | // Note: In 'check' mode (OpenGl_GUM_CHECK) the scene geometry is analyzed for modifications |
e276548b |
45 | // This is light-weight procedure performed for each frame |
46 | |
84c71f29 |
47 | if (theMode == OpenGl_GUM_CHECK) |
e276548b |
48 | { |
84c71f29 |
49 | if (myLayersModificationStatus != myView->LayerList().ModificationState()) |
50 | { |
51 | return UpdateRaytraceGeometry (OpenGl_GUM_PREPARE); |
52 | } |
53 | } |
54 | else if (theMode == OpenGl_GUM_PREPARE) |
55 | { |
56 | myRaytraceGeometry.ClearMaterials(); |
57 | myArrayToTrianglesMap.clear(); |
e276548b |
58 | |
59 | myIsRaytraceDataValid = Standard_False; |
60 | } |
e276548b |
61 | |
62 | // The set of processed structures (reflected to ray-tracing) |
63 | // This set is used to remove out-of-date records from the |
64 | // hash map of structures |
65 | std::set<const OpenGl_Structure*> anElements; |
66 | |
84c71f29 |
67 | // Set of all currently visible and "raytracable" primitive arrays. |
8d3f219f |
68 | std::set<Standard_Size> anArrayIDs; |
84c71f29 |
69 | |
e276548b |
70 | const OpenGl_LayerList& aList = myView->LayerList(); |
71 | |
72 | for (OpenGl_SequenceOfLayers::Iterator anLayerIt (aList.Layers()); anLayerIt.More(); anLayerIt.Next()) |
73 | { |
c5751993 |
74 | const OpenGl_PriorityList& aPriorityList = anLayerIt.Value().PriorityList(); |
e276548b |
75 | |
76 | if (aPriorityList.NbStructures() == 0) |
77 | continue; |
78 | |
79 | const OpenGl_ArrayOfStructure& aStructArray = aPriorityList.ArrayOfStructures(); |
80 | |
68333c8f |
81 | for (Standard_Integer anIndex = 0; anIndex < aStructArray.Length(); ++anIndex) |
e276548b |
82 | { |
83 | OpenGl_SequenceOfStructure::Iterator aStructIt; |
84 | |
85 | for (aStructIt.Init (aStructArray (anIndex)); aStructIt.More(); aStructIt.Next()) |
86 | { |
87 | const OpenGl_Structure* aStructure = aStructIt.Value(); |
88 | |
84c71f29 |
89 | if (theMode == OpenGl_GUM_CHECK) |
e276548b |
90 | { |
91 | if (CheckRaytraceStructure (aStructure)) |
92 | { |
84c71f29 |
93 | return UpdateRaytraceGeometry (OpenGl_GUM_PREPARE); |
e276548b |
94 | } |
84c71f29 |
95 | } |
96 | else if (theMode == OpenGl_GUM_PREPARE) |
97 | { |
98 | if (!aStructure->IsRaytracable() |
99 | || !aStructure->IsVisible()) |
100 | continue; |
101 | |
102 | for (OpenGl_Structure::GroupIterator aGroupIter (aStructure->DrawGroups()); aGroupIter.More(); aGroupIter.Next()) |
103 | { |
104 | // OpenGL elements from group (extract primitives arrays) |
105 | for (const OpenGl_ElementNode* aNode = aGroupIter.Value()->FirstNode(); aNode != NULL; aNode = aNode->next) |
106 | { |
107 | OpenGl_PrimitiveArray* aPrimArray = dynamic_cast<OpenGl_PrimitiveArray*> (aNode->elem); |
108 | |
109 | if (aPrimArray != NULL) |
110 | { |
111 | // Collect all primitive arrays in scene. |
8d3f219f |
112 | anArrayIDs.insert (aPrimArray->GetUID()); |
84c71f29 |
113 | } |
114 | } |
115 | } |
116 | } |
117 | else if (theMode == OpenGl_GUM_UPDATE) |
e276548b |
118 | { |
119 | if (!aStructure->IsRaytracable()) |
120 | continue; |
121 | |
0717ddc1 |
122 | AddRaytraceStructure (aStructure, anElements); |
e276548b |
123 | } |
124 | } |
125 | } |
126 | } |
127 | |
84c71f29 |
128 | if (theMode == OpenGl_GUM_PREPARE) |
129 | { |
25ef750e |
130 | BVH_ObjectSet<Standard_ShortReal, 3>::BVH_ObjectList anUnchangedObjects; |
84c71f29 |
131 | |
132 | // Leave only unchanged objects in myRaytraceGeometry so only their transforms and materials will be updated |
133 | // Objects which not in myArrayToTrianglesMap will be built from scratch. |
134 | for (Standard_Integer anObjectIdx = 0; anObjectIdx < myRaytraceGeometry.Objects().Size(); ++anObjectIdx) |
135 | { |
136 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
137 | myRaytraceGeometry.Objects().ChangeValue (anObjectIdx).operator->()); |
138 | |
139 | // If primitive array of object not in "anArrays" set then it was hided or deleted. |
140 | // If primitive array present in "anArrays" set but we don't have associated object yet, then |
141 | // the object is new and still has to be built. |
8d3f219f |
142 | if ((aTriangleSet != NULL) && ((anArrayIDs.find (aTriangleSet->AssociatedPArrayID())) != anArrayIDs.end())) |
84c71f29 |
143 | { |
144 | anUnchangedObjects.Append (myRaytraceGeometry.Objects().Value (anObjectIdx)); |
145 | |
8d3f219f |
146 | myArrayToTrianglesMap[aTriangleSet->AssociatedPArrayID()] = aTriangleSet; |
84c71f29 |
147 | } |
148 | } |
149 | |
150 | myRaytraceGeometry.Objects() = anUnchangedObjects; |
151 | |
152 | return UpdateRaytraceGeometry (OpenGl_GUM_UPDATE); |
153 | } |
154 | |
155 | if (theMode == OpenGl_GUM_UPDATE) |
e276548b |
156 | { |
157 | // Actualize the hash map of structures -- remove out-of-date records |
158 | std::map<const OpenGl_Structure*, Standard_Size>::iterator anIter = myStructureStates.begin(); |
159 | |
160 | while (anIter != myStructureStates.end()) |
161 | { |
162 | if (anElements.find (anIter->first) == anElements.end()) |
163 | { |
164 | myStructureStates.erase (anIter++); |
165 | } |
166 | else |
167 | { |
168 | ++anIter; |
169 | } |
170 | } |
171 | |
172 | // Actualize OpenGL layer list state |
173 | myLayersModificationStatus = myView->LayerList().ModificationState(); |
174 | |
265d4508 |
175 | // Rebuild bottom-level and high-level BVHs |
176 | myRaytraceGeometry.ProcessAcceleration(); |
e276548b |
177 | |
265d4508 |
178 | const Standard_ShortReal aMinRadius = Max (fabs (myRaytraceGeometry.Box().CornerMin().x()), Max ( |
179 | fabs (myRaytraceGeometry.Box().CornerMin().y()), fabs (myRaytraceGeometry.Box().CornerMin().z()))); |
180 | const Standard_ShortReal aMaxRadius = Max (fabs (myRaytraceGeometry.Box().CornerMax().x()), Max ( |
181 | fabs (myRaytraceGeometry.Box().CornerMax().y()), fabs (myRaytraceGeometry.Box().CornerMax().z()))); |
e276548b |
182 | |
265d4508 |
183 | myRaytraceSceneRadius = 2.f /* scale factor */ * Max (aMinRadius, aMaxRadius); |
e276548b |
184 | |
25ef750e |
185 | const BVH_Vec3f aSize = myRaytraceGeometry.Box().Size(); |
e276548b |
186 | |
a89742cf |
187 | myRaytraceSceneEpsilon = Max (1e-6f, 1e-4f * sqrtf ( |
fc73a202 |
188 | aSize.x() * aSize.x() + aSize.y() * aSize.y() + aSize.z() * aSize.z())); |
189 | |
190 | return UploadRaytraceData(); |
e276548b |
191 | } |
192 | |
e276548b |
193 | return Standard_True; |
194 | } |
195 | |
196 | // ======================================================================= |
197 | // function : CheckRaytraceStructure |
265d4508 |
198 | // purpose : Checks to see if the structure is modified |
e276548b |
199 | // ======================================================================= |
200 | Standard_Boolean OpenGl_Workspace::CheckRaytraceStructure (const OpenGl_Structure* theStructure) |
201 | { |
202 | if (!theStructure->IsRaytracable()) |
203 | { |
204 | // Checks to see if all ray-tracable elements were |
205 | // removed from the structure |
206 | if (theStructure->ModificationState() > 0) |
207 | { |
208 | theStructure->ResetModificationState(); |
209 | return Standard_True; |
210 | } |
211 | |
212 | return Standard_False; |
213 | } |
214 | |
215 | std::map<const OpenGl_Structure*, Standard_Size>::iterator aStructState = myStructureStates.find (theStructure); |
216 | |
217 | if (aStructState != myStructureStates.end()) |
218 | return aStructState->second != theStructure->ModificationState(); |
219 | |
220 | return Standard_True; |
221 | } |
222 | |
25ef750e |
223 | // ======================================================================= |
224 | // function : BuildTexTransform |
225 | // purpose : Constructs texture transformation matrix |
226 | // ======================================================================= |
227 | void BuildTexTransform (const Handle(Graphic3d_TextureParams)& theParams, BVH_Mat4f& theMatrix) |
228 | { |
229 | theMatrix.InitIdentity(); |
230 | |
231 | // Apply scaling |
232 | const Graphic3d_Vec2& aScale = theParams->Scale(); |
233 | |
234 | theMatrix.ChangeValue (0, 0) *= aScale.x(); |
235 | theMatrix.ChangeValue (1, 0) *= aScale.x(); |
236 | theMatrix.ChangeValue (2, 0) *= aScale.x(); |
237 | theMatrix.ChangeValue (3, 0) *= aScale.x(); |
238 | |
239 | theMatrix.ChangeValue (0, 1) *= aScale.y(); |
240 | theMatrix.ChangeValue (1, 1) *= aScale.y(); |
241 | theMatrix.ChangeValue (2, 1) *= aScale.y(); |
242 | theMatrix.ChangeValue (3, 1) *= aScale.y(); |
243 | |
244 | // Apply translation |
245 | const Graphic3d_Vec2 aTrans = -theParams->Translation(); |
246 | |
247 | theMatrix.ChangeValue (0, 3) = theMatrix.GetValue (0, 0) * aTrans.x() + |
248 | theMatrix.GetValue (0, 1) * aTrans.y(); |
249 | |
250 | theMatrix.ChangeValue (1, 3) = theMatrix.GetValue (1, 0) * aTrans.x() + |
251 | theMatrix.GetValue (1, 1) * aTrans.y(); |
252 | |
253 | theMatrix.ChangeValue (2, 3) = theMatrix.GetValue (2, 0) * aTrans.x() + |
254 | theMatrix.GetValue (2, 1) * aTrans.y(); |
255 | |
256 | // Apply rotation |
257 | const Standard_ShortReal aSin = std::sin ( |
258 | -theParams->Rotation() * static_cast<Standard_ShortReal> (M_PI / 180.0)); |
259 | const Standard_ShortReal aCos = std::cos ( |
260 | -theParams->Rotation() * static_cast<Standard_ShortReal> (M_PI / 180.0)); |
261 | |
262 | BVH_Mat4f aRotationMat; |
263 | aRotationMat.SetValue (0, 0, aCos); |
264 | aRotationMat.SetValue (1, 1, aCos); |
265 | aRotationMat.SetValue (0, 1, -aSin); |
266 | aRotationMat.SetValue (1, 0, aSin); |
267 | |
268 | theMatrix = theMatrix * aRotationMat; |
269 | } |
270 | |
e276548b |
271 | // ======================================================================= |
272 | // function : CreateMaterial |
273 | // purpose : Creates ray-tracing material properties |
274 | // ======================================================================= |
25ef750e |
275 | Standard_Boolean OpenGl_Workspace::CreateMaterial (const OpenGl_AspectFace* theAspect, OpenGl_RaytraceMaterial& theMaterial) |
e276548b |
276 | { |
25ef750e |
277 | const OPENGL_SURF_PROP& aProperties = theAspect->IntFront(); |
278 | |
279 | const Standard_ShortReal* aSrcAmbient = |
280 | aProperties.isphysic ? aProperties.ambcol.rgb : aProperties.matcol.rgb; |
281 | |
282 | theMaterial.Ambient = BVH_Vec4f (aSrcAmbient[0] * aProperties.amb, |
283 | aSrcAmbient[1] * aProperties.amb, |
284 | aSrcAmbient[2] * aProperties.amb, |
285 | 1.f); |
286 | |
287 | const Standard_ShortReal* aSrcDiffuse = |
288 | aProperties.isphysic ? aProperties.difcol.rgb : aProperties.matcol.rgb; |
289 | |
290 | theMaterial.Diffuse = BVH_Vec4f (aSrcDiffuse[0] * aProperties.diff, |
291 | aSrcDiffuse[1] * aProperties.diff, |
292 | aSrcDiffuse[2] * aProperties.diff, |
293 | -1.f /* no texture */); |
294 | |
295 | theMaterial.Specular = BVH_Vec4f ( |
296 | (aProperties.isphysic ? aProperties.speccol.rgb[0] : 1.f) * aProperties.spec, |
297 | (aProperties.isphysic ? aProperties.speccol.rgb[1] : 1.f) * aProperties.spec, |
298 | (aProperties.isphysic ? aProperties.speccol.rgb[2] : 1.f) * aProperties.spec, |
299 | aProperties.shine); |
300 | |
301 | const Standard_ShortReal* aSrcEmission = |
302 | aProperties.isphysic ? aProperties.emscol.rgb : aProperties.matcol.rgb; |
303 | |
304 | theMaterial.Emission = BVH_Vec4f (aSrcEmission[0] * aProperties.emsv, |
305 | aSrcEmission[1] * aProperties.emsv, |
306 | aSrcEmission[2] * aProperties.emsv, |
307 | 1.f); |
e276548b |
308 | |
309 | // Note: Here we use sub-linear transparency function |
310 | // to produce realistic-looking transparency effect |
25ef750e |
311 | theMaterial.Transparency = BVH_Vec4f (powf (aProperties.trans, 0.75f), |
312 | 1.f - aProperties.trans, |
313 | aProperties.index == 0 ? 1.f : aProperties.index, |
314 | aProperties.index == 0 ? 1.f : 1.f / aProperties.index); |
e276548b |
315 | |
25ef750e |
316 | const Standard_ShortReal aMaxRefl = Max (theMaterial.Diffuse.x() + theMaterial.Specular.x(), |
317 | Max (theMaterial.Diffuse.y() + theMaterial.Specular.y(), |
318 | theMaterial.Diffuse.z() + theMaterial.Specular.z())); |
e276548b |
319 | |
25ef750e |
320 | const Standard_ShortReal aReflectionScale = 0.75f / aMaxRefl; |
321 | |
322 | theMaterial.Reflection = BVH_Vec4f ( |
323 | aProperties.speccol.rgb[0] * aProperties.spec * aReflectionScale, |
324 | aProperties.speccol.rgb[1] * aProperties.spec * aReflectionScale, |
325 | aProperties.speccol.rgb[2] * aProperties.spec * aReflectionScale, |
326 | 0.f); |
327 | |
328 | if (theAspect->DoTextureMap()) |
329 | { |
330 | if (myGlContext->arbTexBindless != NULL) |
331 | { |
332 | BuildTexTransform (theAspect->TextureParams(), theMaterial.TextureTransform); |
333 | theMaterial.Diffuse.w() = static_cast<Standard_ShortReal> ( |
334 | myRaytraceGeometry.AddTexture (theAspect->TextureRes (myGlContext))); |
335 | } |
336 | else if (!myIsRaytraceWarnTextures) |
337 | { |
338 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
339 | GL_DEBUG_TYPE_PORTABILITY_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
340 | "Warning: texturing in Ray-Trace requires GL_ARB_bindless_texture extension which is missing. " |
341 | "Textures will be ignored."); |
342 | myIsRaytraceWarnTextures = Standard_True; |
343 | } |
344 | } |
e276548b |
345 | |
25ef750e |
346 | return Standard_True; |
e276548b |
347 | } |
348 | |
349 | // ======================================================================= |
350 | // function : AddRaytraceStructure |
351 | // purpose : Adds OpenGL structure to ray-traced scene geometry |
352 | // ======================================================================= |
0717ddc1 |
353 | Standard_Boolean OpenGl_Workspace::AddRaytraceStructure (const OpenGl_Structure* theStructure, std::set<const OpenGl_Structure*>& theElements) |
e276548b |
354 | { |
e276548b |
355 | theElements.insert (theStructure); |
356 | |
357 | if (!theStructure->IsVisible()) |
358 | { |
359 | myStructureStates[theStructure] = theStructure->ModificationState(); |
360 | return Standard_True; |
361 | } |
362 | |
363 | // Get structure material |
68333c8f |
364 | Standard_Integer aStructMatID = -1; |
e276548b |
365 | |
366 | if (theStructure->AspectFace() != NULL) |
367 | { |
265d4508 |
368 | aStructMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
369 | |
370 | OpenGl_RaytraceMaterial aStructMaterial; |
25ef750e |
371 | CreateMaterial (theStructure->AspectFace(), aStructMaterial); |
e276548b |
372 | |
265d4508 |
373 | myRaytraceGeometry.Materials.push_back (aStructMaterial); |
e276548b |
374 | } |
375 | |
0717ddc1 |
376 | Standard_ShortReal aStructTransformArr[16]; |
377 | Standard_ShortReal* aStructTransform = NULL; |
378 | if (theStructure->Transformation()->mat != NULL) |
379 | { |
380 | aStructTransform = aStructTransformArr; |
381 | for (Standard_Integer i = 0; i < 4; ++i) |
382 | { |
383 | for (Standard_Integer j = 0; j < 4; ++j) |
384 | { |
385 | aStructTransform[j * 4 + i] = theStructure->Transformation()->mat[i][j]; |
386 | } |
387 | } |
388 | } |
389 | |
390 | AddRaytraceGroups (theStructure, aStructMatID, aStructTransform); |
391 | |
392 | // Process all connected OpenGL structures |
393 | for (OpenGl_ListOfStructure::Iterator anIts (theStructure->ConnectedStructures()); anIts.More(); anIts.Next()) |
394 | { |
395 | if (anIts.Value()->IsRaytracable()) |
396 | AddRaytraceGroups (anIts.Value(), aStructMatID, aStructTransform); |
397 | } |
398 | |
399 | myStructureStates[theStructure] = theStructure->ModificationState(); |
400 | return Standard_True; |
401 | } |
402 | |
403 | // ======================================================================= |
404 | // function : AddRaytraceGroups |
405 | // purpose : Adds OpenGL groups to ray-traced scene geometry |
406 | // ======================================================================= |
407 | Standard_Boolean OpenGl_Workspace::AddRaytraceGroups (const OpenGl_Structure* theStructure, |
408 | const Standard_Integer theStructMatId, |
409 | const Standard_ShortReal* theTransform) |
410 | { |
b64d84be |
411 | for (OpenGl_Structure::GroupIterator aGroupIter (theStructure->DrawGroups()); aGroupIter.More(); aGroupIter.Next()) |
e276548b |
412 | { |
413 | // Get group material |
68333c8f |
414 | Standard_Integer aGroupMatID = -1; |
b64d84be |
415 | if (aGroupIter.Value()->AspectFace() != NULL) |
e276548b |
416 | { |
265d4508 |
417 | aGroupMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
418 | |
419 | OpenGl_RaytraceMaterial aGroupMaterial; |
25ef750e |
420 | CreateMaterial (aGroupIter.Value()->AspectFace(), aGroupMaterial); |
e276548b |
421 | |
265d4508 |
422 | myRaytraceGeometry.Materials.push_back (aGroupMaterial); |
e276548b |
423 | } |
424 | |
0717ddc1 |
425 | Standard_Integer aMatID = aGroupMatID < 0 ? theStructMatId : aGroupMatID; |
e276548b |
426 | |
265d4508 |
427 | if (aMatID < 0) |
e276548b |
428 | { |
265d4508 |
429 | aMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
430 | |
265d4508 |
431 | myRaytraceGeometry.Materials.push_back (OpenGl_RaytraceMaterial()); |
e276548b |
432 | } |
433 | |
265d4508 |
434 | // Add OpenGL elements from group (extract primitives arrays and aspects) |
b64d84be |
435 | for (const OpenGl_ElementNode* aNode = aGroupIter.Value()->FirstNode(); aNode != NULL; aNode = aNode->next) |
e276548b |
436 | { |
5322131b |
437 | OpenGl_AspectFace* anAspect = dynamic_cast<OpenGl_AspectFace*> (aNode->elem); |
438 | if (anAspect != NULL) |
e276548b |
439 | { |
5322131b |
440 | aMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
441 | |
5322131b |
442 | OpenGl_RaytraceMaterial aMaterial; |
25ef750e |
443 | CreateMaterial (anAspect, aMaterial); |
e276548b |
444 | |
5322131b |
445 | myRaytraceGeometry.Materials.push_back (aMaterial); |
e276548b |
446 | } |
5322131b |
447 | else |
e276548b |
448 | { |
449 | OpenGl_PrimitiveArray* aPrimArray = dynamic_cast<OpenGl_PrimitiveArray*> (aNode->elem); |
84c71f29 |
450 | |
e276548b |
451 | if (aPrimArray != NULL) |
452 | { |
8d3f219f |
453 | std::map<Standard_Size, OpenGl_TriangleSet*>::iterator aSetIter = myArrayToTrianglesMap.find (aPrimArray->GetUID()); |
454 | |
84c71f29 |
455 | if (aSetIter != myArrayToTrianglesMap.end()) |
456 | { |
457 | OpenGl_TriangleSet* aSet = aSetIter->second; |
25ef750e |
458 | |
84c71f29 |
459 | BVH_Transform<Standard_ShortReal, 4>* aTransform = new BVH_Transform<Standard_ShortReal, 4>(); |
460 | |
461 | if (theTransform != NULL) |
462 | { |
463 | aTransform->SetTransform (*(reinterpret_cast<const BVH_Mat4f*> (theTransform))); |
464 | } |
465 | |
466 | aSet->SetProperties (aTransform); |
467 | |
25ef750e |
468 | if (aSet->MaterialIndex() != OpenGl_TriangleSet::INVALID_MATERIAL && aSet->MaterialIndex() != aMatID) |
84c71f29 |
469 | { |
470 | aSet->SetMaterialIndex (aMatID); |
471 | } |
472 | } |
473 | else |
474 | { |
25ef750e |
475 | NCollection_Handle<BVH_Object<Standard_ShortReal, 3> > aSet = |
84c71f29 |
476 | AddRaytracePrimitiveArray (aPrimArray, aMatID, 0); |
265d4508 |
477 | |
84c71f29 |
478 | if (!aSet.IsNull()) |
479 | { |
480 | BVH_Transform<Standard_ShortReal, 4>* aTransform = new BVH_Transform<Standard_ShortReal, 4>; |
481 | |
482 | if (theTransform != NULL) |
483 | { |
484 | aTransform->SetTransform (*(reinterpret_cast<const BVH_Mat4f*> (theTransform))); |
485 | } |
486 | |
487 | aSet->SetProperties (aTransform); |
488 | |
489 | myRaytraceGeometry.Objects().Append (aSet); |
490 | } |
491 | } |
e276548b |
492 | } |
493 | } |
494 | } |
e276548b |
495 | } |
496 | |
e276548b |
497 | return Standard_True; |
498 | } |
499 | |
500 | // ======================================================================= |
501 | // function : AddRaytracePrimitiveArray |
502 | // purpose : Adds OpenGL primitive array to ray-traced scene geometry |
503 | // ======================================================================= |
871fa103 |
504 | OpenGl_TriangleSet* OpenGl_Workspace::AddRaytracePrimitiveArray (const OpenGl_PrimitiveArray* theArray, |
505 | Standard_Integer theMatID, |
25ef750e |
506 | const OpenGl_Mat4* theTransform) |
e276548b |
507 | { |
871fa103 |
508 | const Handle(Graphic3d_IndexBuffer)& anIndices = theArray->Indices(); |
509 | const Handle(Graphic3d_Buffer)& anAttribs = theArray->Attributes(); |
510 | const Handle(Graphic3d_BoundBuffer)& aBounds = theArray->Bounds(); |
511 | if (theArray->DrawMode() < GL_TRIANGLES |
ca3c13d1 |
512 | #if !defined(GL_ES_VERSION_2_0) |
871fa103 |
513 | || theArray->DrawMode() > GL_POLYGON |
ca3c13d1 |
514 | #else |
515 | || theArray->DrawMode() > GL_TRIANGLE_FAN |
516 | #endif |
871fa103 |
517 | || anAttribs.IsNull()) |
e276548b |
518 | { |
265d4508 |
519 | return NULL; |
e276548b |
520 | } |
521 | |
e276548b |
522 | #ifdef RAY_TRACE_PRINT_INFO |
bc8c79bb |
523 | switch (theArray->DrawMode()) |
e276548b |
524 | { |
871fa103 |
525 | case GL_TRIANGLES: std::cout << "\tAdding GL_TRIANGLES\n"; break; |
871fa103 |
526 | case GL_TRIANGLE_FAN: std::cout << "\tAdding GL_TRIANGLE_FAN\n"; break; |
527 | case GL_TRIANGLE_STRIP: std::cout << "\tAdding GL_TRIANGLE_STRIP\n"; break; |
ca3c13d1 |
528 | #if !defined(GL_ES_VERSION_2_0) |
529 | case GL_QUADS: std::cout << "\tAdding GL_QUADS\n"; break; |
871fa103 |
530 | case GL_QUAD_STRIP: std::cout << "\tAdding GL_QUAD_STRIP\n"; break; |
ca3c13d1 |
531 | case GL_POLYGON: std::cout << "\tAdding GL_POLYGON\n"; break; |
532 | #endif |
e276548b |
533 | } |
534 | #endif |
535 | |
25ef750e |
536 | OpenGl_Mat4 aNormalMatrix; |
537 | |
538 | if (theTransform != NULL) |
539 | { |
540 | Standard_ASSERT_RETURN (theTransform->Inverted (aNormalMatrix), |
541 | "Error: Failed to compute normal transformation matrix", NULL); |
542 | |
543 | aNormalMatrix.Transpose(); |
544 | } |
545 | |
8d3f219f |
546 | OpenGl_TriangleSet* aSet = new OpenGl_TriangleSet (theArray->GetUID()); |
e276548b |
547 | { |
871fa103 |
548 | aSet->Vertices.reserve (anAttribs->NbElements); |
549 | aSet->Normals .reserve (anAttribs->NbElements); |
25ef750e |
550 | aSet->TexCrds .reserve (anAttribs->NbElements); |
551 | |
871fa103 |
552 | const size_t aVertFrom = aSet->Vertices.size(); |
553 | for (Standard_Integer anAttribIter = 0; anAttribIter < anAttribs->NbAttributes; ++anAttribIter) |
265d4508 |
554 | { |
871fa103 |
555 | const Graphic3d_Attribute& anAttrib = anAttribs->Attribute (anAttribIter); |
556 | const size_t anOffset = anAttribs->AttributeOffset (anAttribIter); |
557 | if (anAttrib.Id == Graphic3d_TOA_POS) |
558 | { |
559 | if (anAttrib.DataType == Graphic3d_TOD_VEC3 |
560 | || anAttrib.DataType == Graphic3d_TOD_VEC4) |
561 | { |
562 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
563 | { |
25ef750e |
564 | aSet->Vertices.push_back ( |
565 | *reinterpret_cast<const Graphic3d_Vec3* >(anAttribs->value (aVertIter) + anOffset)); |
871fa103 |
566 | } |
567 | } |
568 | else if (anAttrib.DataType == Graphic3d_TOD_VEC2) |
569 | { |
570 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
571 | { |
572 | const Graphic3d_Vec2& aVert = *reinterpret_cast<const Graphic3d_Vec2* >(anAttribs->value (aVertIter) + anOffset); |
25ef750e |
573 | aSet->Vertices.push_back (BVH_Vec3f (aVert.x(), aVert.y(), 0.0f)); |
871fa103 |
574 | } |
575 | } |
576 | } |
577 | else if (anAttrib.Id == Graphic3d_TOA_NORM) |
578 | { |
579 | if (anAttrib.DataType == Graphic3d_TOD_VEC3 |
580 | || anAttrib.DataType == Graphic3d_TOD_VEC4) |
581 | { |
582 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
583 | { |
25ef750e |
584 | aSet->Normals.push_back ( |
585 | *reinterpret_cast<const Graphic3d_Vec3* >(anAttribs->value (aVertIter) + anOffset)); |
586 | } |
587 | } |
588 | } |
589 | else if (anAttrib.Id == Graphic3d_TOA_UV) |
590 | { |
591 | if (anAttrib.DataType == Graphic3d_TOD_VEC2) |
592 | { |
593 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
594 | { |
595 | aSet->TexCrds.push_back ( |
596 | *reinterpret_cast<const Graphic3d_Vec2* >(anAttribs->value (aVertIter) + anOffset)); |
871fa103 |
597 | } |
598 | } |
599 | } |
265d4508 |
600 | } |
e276548b |
601 | |
871fa103 |
602 | if (aSet->Normals.size() != aSet->Vertices.size()) |
265d4508 |
603 | { |
871fa103 |
604 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
265d4508 |
605 | { |
25ef750e |
606 | aSet->Normals.push_back (BVH_Vec3f()); |
607 | } |
608 | } |
609 | |
610 | if (aSet->TexCrds.size() != aSet->Vertices.size()) |
611 | { |
612 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
613 | { |
614 | aSet->TexCrds.push_back (BVH_Vec2f()); |
265d4508 |
615 | } |
871fa103 |
616 | } |
e276548b |
617 | |
25ef750e |
618 | if (theTransform != NULL) |
871fa103 |
619 | { |
620 | for (size_t aVertIter = aVertFrom; aVertIter < aSet->Vertices.size(); ++aVertIter) |
621 | { |
25ef750e |
622 | BVH_Vec3f& aVertex = aSet->Vertices[aVertIter]; |
623 | |
624 | BVH_Vec4f aTransVertex = |
625 | *theTransform * BVH_Vec4f (aVertex.x(), aVertex.y(), aVertex.z(), 1.f); |
626 | |
627 | aVertex = BVH_Vec3f (aTransVertex.x(), aTransVertex.y(), aTransVertex.z()); |
871fa103 |
628 | } |
629 | for (size_t aVertIter = aVertFrom; aVertIter < aSet->Normals.size(); ++aVertIter) |
630 | { |
25ef750e |
631 | BVH_Vec3f& aNormal = aSet->Normals[aVertIter]; |
632 | |
633 | BVH_Vec4f aTransNormal = |
634 | aNormalMatrix * BVH_Vec4f (aNormal.x(), aNormal.y(), aNormal.z(), 0.f); |
635 | |
636 | aNormal = BVH_Vec3f (aTransNormal.x(), aTransNormal.y(), aTransNormal.z()); |
871fa103 |
637 | } |
e276548b |
638 | } |
639 | |
871fa103 |
640 | if (!aBounds.IsNull()) |
265d4508 |
641 | { |
642 | #ifdef RAY_TRACE_PRINT_INFO |
bc8c79bb |
643 | std::cout << "\tNumber of bounds = " << aBounds->NbBounds << std::endl; |
265d4508 |
644 | #endif |
e276548b |
645 | |
265d4508 |
646 | Standard_Integer aBoundStart = 0; |
871fa103 |
647 | for (Standard_Integer aBound = 0; aBound < aBounds->NbBounds; ++aBound) |
265d4508 |
648 | { |
871fa103 |
649 | const Standard_Integer aVertNum = aBounds->Bounds[aBound]; |
e276548b |
650 | |
265d4508 |
651 | #ifdef RAY_TRACE_PRINT_INFO |
652 | std::cout << "\tAdding indices from bound " << aBound << ": " << |
653 | aBoundStart << " .. " << aVertNum << std::endl; |
654 | #endif |
655 | |
871fa103 |
656 | if (!AddRaytraceVertexIndices (*aSet, *theArray, aBoundStart, aVertNum, theMatID)) |
265d4508 |
657 | { |
658 | delete aSet; |
659 | return NULL; |
660 | } |
661 | |
662 | aBoundStart += aVertNum; |
663 | } |
664 | } |
665 | else |
e276548b |
666 | { |
871fa103 |
667 | const Standard_Integer aVertNum = !anIndices.IsNull() ? anIndices->NbElements : anAttribs->NbElements; |
e276548b |
668 | |
265d4508 |
669 | #ifdef RAY_TRACE_PRINT_INFO |
670 | std::cout << "\tAdding indices from array: " << aVertNum << std::endl; |
671 | #endif |
e276548b |
672 | |
871fa103 |
673 | if (!AddRaytraceVertexIndices (*aSet, *theArray, 0, aVertNum, theMatID)) |
e276548b |
674 | { |
265d4508 |
675 | delete aSet; |
676 | return NULL; |
e276548b |
677 | } |
e276548b |
678 | } |
679 | } |
e276548b |
680 | |
265d4508 |
681 | if (aSet->Size() != 0) |
682 | aSet->MarkDirty(); |
e276548b |
683 | |
265d4508 |
684 | return aSet; |
e276548b |
685 | } |
686 | |
687 | // ======================================================================= |
688 | // function : AddRaytraceVertexIndices |
689 | // purpose : Adds vertex indices to ray-traced scene geometry |
690 | // ======================================================================= |
871fa103 |
691 | Standard_Boolean OpenGl_Workspace::AddRaytraceVertexIndices (OpenGl_TriangleSet& theSet, |
692 | const OpenGl_PrimitiveArray& theArray, |
693 | Standard_Integer theOffset, |
694 | Standard_Integer theCount, |
695 | Standard_Integer theMatID) |
e276548b |
696 | { |
871fa103 |
697 | switch (theArray.DrawMode()) |
e276548b |
698 | { |
871fa103 |
699 | case GL_TRIANGLES: return AddRaytraceTriangleArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
871fa103 |
700 | case GL_TRIANGLE_FAN: return AddRaytraceTriangleFanArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
701 | case GL_TRIANGLE_STRIP: return AddRaytraceTriangleStripArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
ca3c13d1 |
702 | #if !defined(GL_ES_VERSION_2_0) |
703 | case GL_QUADS: return AddRaytraceQuadrangleArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
871fa103 |
704 | case GL_QUAD_STRIP: return AddRaytraceQuadrangleStripArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
705 | case GL_POLYGON: return AddRaytracePolygonArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
ca3c13d1 |
706 | #endif |
e276548b |
707 | } |
871fa103 |
708 | return Standard_False; |
e276548b |
709 | } |
710 | |
711 | // ======================================================================= |
712 | // function : AddRaytraceTriangleArray |
713 | // purpose : Adds OpenGL triangle array to ray-traced scene geometry |
714 | // ======================================================================= |
871fa103 |
715 | Standard_Boolean OpenGl_Workspace::AddRaytraceTriangleArray (OpenGl_TriangleSet& theSet, |
716 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
717 | Standard_Integer theOffset, |
718 | Standard_Integer theCount, |
719 | Standard_Integer theMatID) |
e276548b |
720 | { |
265d4508 |
721 | if (theCount < 3) |
e276548b |
722 | return Standard_True; |
723 | |
871fa103 |
724 | theSet.Elements.reserve (theSet.Elements.size() + theCount / 3); |
265d4508 |
725 | |
871fa103 |
726 | if (!theIndices.IsNull()) |
e276548b |
727 | { |
265d4508 |
728 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; aVert += 3) |
e276548b |
729 | { |
871fa103 |
730 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
731 | theIndices->Index (aVert + 1), |
732 | theIndices->Index (aVert + 2), |
733 | theMatID)); |
e276548b |
734 | } |
735 | } |
736 | else |
737 | { |
265d4508 |
738 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; aVert += 3) |
e276548b |
739 | { |
871fa103 |
740 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, aVert + 1, aVert + 2, |
741 | theMatID)); |
e276548b |
742 | } |
743 | } |
744 | |
745 | return Standard_True; |
746 | } |
747 | |
748 | // ======================================================================= |
749 | // function : AddRaytraceTriangleFanArray |
750 | // purpose : Adds OpenGL triangle fan array to ray-traced scene geometry |
751 | // ======================================================================= |
871fa103 |
752 | Standard_Boolean OpenGl_Workspace::AddRaytraceTriangleFanArray (OpenGl_TriangleSet& theSet, |
753 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
754 | Standard_Integer theOffset, |
755 | Standard_Integer theCount, |
756 | Standard_Integer theMatID) |
e276548b |
757 | { |
265d4508 |
758 | if (theCount < 3) |
e276548b |
759 | return Standard_True; |
760 | |
871fa103 |
761 | theSet.Elements.reserve (theSet.Elements.size() + theCount - 2); |
265d4508 |
762 | |
871fa103 |
763 | if (!theIndices.IsNull()) |
e276548b |
764 | { |
265d4508 |
765 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
766 | { |
871fa103 |
767 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (theOffset), |
768 | theIndices->Index (aVert + 1), |
769 | theIndices->Index (aVert + 2), |
770 | theMatID)); |
e276548b |
771 | } |
772 | } |
773 | else |
774 | { |
265d4508 |
775 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
776 | { |
871fa103 |
777 | theSet.Elements.push_back (BVH_Vec4i (theOffset, |
778 | aVert + 1, |
779 | aVert + 2, |
780 | theMatID)); |
e276548b |
781 | } |
782 | } |
783 | |
784 | return Standard_True; |
785 | } |
786 | |
787 | // ======================================================================= |
788 | // function : AddRaytraceTriangleStripArray |
789 | // purpose : Adds OpenGL triangle strip array to ray-traced scene geometry |
790 | // ======================================================================= |
871fa103 |
791 | Standard_Boolean OpenGl_Workspace::AddRaytraceTriangleStripArray (OpenGl_TriangleSet& theSet, |
792 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
793 | Standard_Integer theOffset, |
794 | Standard_Integer theCount, |
795 | Standard_Integer theMatID) |
e276548b |
796 | { |
265d4508 |
797 | if (theCount < 3) |
e276548b |
798 | return Standard_True; |
799 | |
871fa103 |
800 | theSet.Elements.reserve (theSet.Elements.size() + theCount - 2); |
265d4508 |
801 | |
871fa103 |
802 | if (!theIndices.IsNull()) |
e276548b |
803 | { |
265d4508 |
804 | for (Standard_Integer aVert = theOffset, aCW = 0; aVert < theOffset + theCount - 2; ++aVert, aCW = (aCW + 1) % 2) |
e276548b |
805 | { |
871fa103 |
806 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + aCW ? 1 : 0), |
807 | theIndices->Index (aVert + aCW ? 0 : 1), |
808 | theIndices->Index (aVert + 2), |
809 | theMatID)); |
e276548b |
810 | } |
811 | } |
812 | else |
813 | { |
265d4508 |
814 | for (Standard_Integer aVert = theOffset, aCW = 0; aVert < theOffset + theCount - 2; ++aVert, aCW = (aCW + 1) % 2) |
e276548b |
815 | { |
871fa103 |
816 | theSet.Elements.push_back (BVH_Vec4i (aVert + aCW ? 1 : 0, |
817 | aVert + aCW ? 0 : 1, |
818 | aVert + 2, |
819 | theMatID)); |
e276548b |
820 | } |
821 | } |
822 | |
823 | return Standard_True; |
824 | } |
825 | |
826 | // ======================================================================= |
827 | // function : AddRaytraceQuadrangleArray |
828 | // purpose : Adds OpenGL quad array to ray-traced scene geometry |
829 | // ======================================================================= |
871fa103 |
830 | Standard_Boolean OpenGl_Workspace::AddRaytraceQuadrangleArray (OpenGl_TriangleSet& theSet, |
831 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
832 | Standard_Integer theOffset, |
833 | Standard_Integer theCount, |
834 | Standard_Integer theMatID) |
e276548b |
835 | { |
265d4508 |
836 | if (theCount < 4) |
e276548b |
837 | return Standard_True; |
838 | |
871fa103 |
839 | theSet.Elements.reserve (theSet.Elements.size() + theCount / 2); |
265d4508 |
840 | |
871fa103 |
841 | if (!theIndices.IsNull()) |
e276548b |
842 | { |
265d4508 |
843 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 4) |
e276548b |
844 | { |
871fa103 |
845 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
846 | theIndices->Index (aVert + 1), |
847 | theIndices->Index (aVert + 2), |
848 | theMatID)); |
849 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
850 | theIndices->Index (aVert + 2), |
851 | theIndices->Index (aVert + 3), |
852 | theMatID)); |
e276548b |
853 | } |
854 | } |
855 | else |
856 | { |
265d4508 |
857 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 4) |
e276548b |
858 | { |
871fa103 |
859 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, aVert + 1, aVert + 2, |
860 | theMatID)); |
861 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, aVert + 2, aVert + 3, |
862 | theMatID)); |
e276548b |
863 | } |
864 | } |
865 | |
866 | return Standard_True; |
867 | } |
868 | |
869 | // ======================================================================= |
870 | // function : AddRaytraceQuadrangleStripArray |
871 | // purpose : Adds OpenGL quad strip array to ray-traced scene geometry |
872 | // ======================================================================= |
871fa103 |
873 | Standard_Boolean OpenGl_Workspace::AddRaytraceQuadrangleStripArray (OpenGl_TriangleSet& theSet, |
874 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
875 | Standard_Integer theOffset, |
876 | Standard_Integer theCount, |
877 | Standard_Integer theMatID) |
e276548b |
878 | { |
265d4508 |
879 | if (theCount < 4) |
e276548b |
880 | return Standard_True; |
881 | |
871fa103 |
882 | theSet.Elements.reserve (theSet.Elements.size() + 2 * theCount - 6); |
265d4508 |
883 | |
871fa103 |
884 | if (!theIndices.IsNull()) |
e276548b |
885 | { |
265d4508 |
886 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 2) |
e276548b |
887 | { |
871fa103 |
888 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
889 | theIndices->Index (aVert + 1), |
890 | theIndices->Index (aVert + 2), |
891 | theMatID)); |
892 | |
893 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 1), |
894 | theIndices->Index (aVert + 3), |
895 | theIndices->Index (aVert + 2), |
896 | theMatID)); |
e276548b |
897 | } |
898 | } |
899 | else |
900 | { |
265d4508 |
901 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 2) |
e276548b |
902 | { |
871fa103 |
903 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, |
904 | aVert + 1, |
905 | aVert + 2, |
906 | theMatID)); |
907 | |
908 | theSet.Elements.push_back (BVH_Vec4i (aVert + 1, |
909 | aVert + 3, |
910 | aVert + 2, |
911 | theMatID)); |
e276548b |
912 | } |
913 | } |
914 | |
915 | return Standard_True; |
916 | } |
917 | |
918 | // ======================================================================= |
919 | // function : AddRaytracePolygonArray |
920 | // purpose : Adds OpenGL polygon array to ray-traced scene geometry |
921 | // ======================================================================= |
871fa103 |
922 | Standard_Boolean OpenGl_Workspace::AddRaytracePolygonArray (OpenGl_TriangleSet& theSet, |
923 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
924 | Standard_Integer theOffset, |
925 | Standard_Integer theCount, |
926 | Standard_Integer theMatID) |
e276548b |
927 | { |
265d4508 |
928 | if (theCount < 3) |
e276548b |
929 | return Standard_True; |
930 | |
871fa103 |
931 | theSet.Elements.reserve (theSet.Elements.size() + theCount - 2); |
265d4508 |
932 | |
871fa103 |
933 | if (!theIndices.IsNull()) |
e276548b |
934 | { |
265d4508 |
935 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
936 | { |
871fa103 |
937 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (theOffset), |
938 | theIndices->Index (aVert + 1), |
939 | theIndices->Index (aVert + 2), |
940 | theMatID)); |
e276548b |
941 | } |
942 | } |
943 | else |
944 | { |
265d4508 |
945 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
946 | { |
871fa103 |
947 | theSet.Elements.push_back (BVH_Vec4i (theOffset, |
948 | aVert + 1, |
949 | aVert + 2, |
950 | theMatID)); |
e276548b |
951 | } |
952 | } |
953 | |
954 | return Standard_True; |
955 | } |
956 | |
957 | // ======================================================================= |
958 | // function : UpdateRaytraceLightSources |
959 | // purpose : Updates 3D scene light sources for ray-tracing |
960 | // ======================================================================= |
25ef750e |
961 | Standard_Boolean OpenGl_Workspace::UpdateRaytraceLightSources (const OpenGl_Mat4& theInvModelView) |
e276548b |
962 | { |
265d4508 |
963 | myRaytraceGeometry.Sources.clear(); |
e276548b |
964 | |
fc73a202 |
965 | myRaytraceGeometry.Ambient = BVH_Vec4f (0.0f, 0.0f, 0.0f, 0.0f); |
265d4508 |
966 | |
967 | for (OpenGl_ListOfLight::Iterator anItl (myView->LightList()); anItl.More(); anItl.Next()) |
e276548b |
968 | { |
12381341 |
969 | const OpenGl_Light& aLight = anItl.Value(); |
265d4508 |
970 | |
12381341 |
971 | if (aLight.Type == Visual3d_TOLS_AMBIENT) |
e276548b |
972 | { |
fc73a202 |
973 | myRaytraceGeometry.Ambient += BVH_Vec4f (aLight.Color.r(), |
974 | aLight.Color.g(), |
975 | aLight.Color.b(), |
976 | 0.0f); |
e276548b |
977 | continue; |
978 | } |
979 | |
265d4508 |
980 | BVH_Vec4f aDiffuse (aLight.Color.r(), |
981 | aLight.Color.g(), |
982 | aLight.Color.b(), |
983 | 1.0f); |
984 | |
985 | BVH_Vec4f aPosition (-aLight.Direction.x(), |
986 | -aLight.Direction.y(), |
987 | -aLight.Direction.z(), |
988 | 0.0f); |
989 | |
12381341 |
990 | if (aLight.Type != Visual3d_TOLS_DIRECTIONAL) |
e276548b |
991 | { |
265d4508 |
992 | aPosition = BVH_Vec4f (aLight.Position.x(), |
993 | aLight.Position.y(), |
994 | aLight.Position.z(), |
995 | 1.0f); |
e276548b |
996 | } |
265d4508 |
997 | |
12381341 |
998 | if (aLight.IsHeadlight) |
25ef750e |
999 | { |
1000 | aPosition = theInvModelView * aPosition; |
1001 | } |
e276548b |
1002 | |
265d4508 |
1003 | myRaytraceGeometry.Sources.push_back (OpenGl_RaytraceLight (aDiffuse, aPosition)); |
e276548b |
1004 | } |
1005 | |
fc73a202 |
1006 | if (myRaytraceLightSrcTexture.IsNull()) // create light source buffer |
e276548b |
1007 | { |
fc73a202 |
1008 | myRaytraceLightSrcTexture = new OpenGl_TextureBufferArb; |
e276548b |
1009 | |
fc73a202 |
1010 | if (!myRaytraceLightSrcTexture->Create (myGlContext)) |
1011 | { |
e276548b |
1012 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1013 | std::cout << "Error: Failed to create light source buffer" << std::endl; |
e276548b |
1014 | #endif |
fc73a202 |
1015 | return Standard_False; |
1016 | } |
e276548b |
1017 | } |
fc73a202 |
1018 | |
1019 | if (myRaytraceGeometry.Sources.size() != 0) |
e276548b |
1020 | { |
fc73a202 |
1021 | const GLfloat* aDataPtr = myRaytraceGeometry.Sources.front().Packed(); |
5cff985a |
1022 | if (!myRaytraceLightSrcTexture->Init (myGlContext, 4, GLsizei (myRaytraceGeometry.Sources.size() * 2), aDataPtr)) |
fc73a202 |
1023 | { |
1024 | #ifdef RAY_TRACE_PRINT_INFO |
1025 | std::cout << "Error: Failed to upload light source buffer" << std::endl; |
e276548b |
1026 | #endif |
fc73a202 |
1027 | return Standard_False; |
1028 | } |
1029 | } |
e276548b |
1030 | |
1031 | return Standard_True; |
1032 | } |
1033 | |
1034 | // ======================================================================= |
fc73a202 |
1035 | // function : UpdateRaytraceEnvironmentMap |
1036 | // purpose : Updates environment map for ray-tracing |
e276548b |
1037 | // ======================================================================= |
fc73a202 |
1038 | Standard_Boolean OpenGl_Workspace::UpdateRaytraceEnvironmentMap() |
e276548b |
1039 | { |
fc73a202 |
1040 | if (myView.IsNull()) |
e276548b |
1041 | return Standard_False; |
e276548b |
1042 | |
fc73a202 |
1043 | if (myViewModificationStatus == myView->ModificationState()) |
1044 | return Standard_True; |
e276548b |
1045 | |
fc73a202 |
1046 | for (Standard_Integer anIdx = 0; anIdx < 2; ++anIdx) |
e276548b |
1047 | { |
fc73a202 |
1048 | const Handle(OpenGl_ShaderProgram)& aProgram = |
1049 | anIdx == 0 ? myRaytraceProgram : myPostFSAAProgram; |
e276548b |
1050 | |
fc73a202 |
1051 | if (!aProgram.IsNull()) |
e276548b |
1052 | { |
7d3e64ef |
1053 | myGlContext->BindProgram (aProgram); |
e276548b |
1054 | |
fc73a202 |
1055 | if (!myView->TextureEnv().IsNull() && myView->SurfaceDetail() != Visual3d_TOD_NONE) |
e276548b |
1056 | { |
fc73a202 |
1057 | myView->TextureEnv()->Bind ( |
1058 | myGlContext, GL_TEXTURE0 + OpenGl_RT_EnvironmentMapTexture); |
1059 | |
84c71f29 |
1060 | aProgram->SetUniform (myGlContext, |
25ef750e |
1061 | myUniformLocations[anIdx][OpenGl_RT_uEnvMapEnable], 1); |
e276548b |
1062 | } |
1063 | else |
1064 | { |
84c71f29 |
1065 | aProgram->SetUniform (myGlContext, |
25ef750e |
1066 | myUniformLocations[anIdx][OpenGl_RT_uEnvMapEnable], 0); |
e276548b |
1067 | } |
fc73a202 |
1068 | } |
e276548b |
1069 | } |
1070 | |
7d3e64ef |
1071 | myGlContext->BindProgram (NULL); |
fc73a202 |
1072 | myViewModificationStatus = myView->ModificationState(); |
e276548b |
1073 | return Standard_True; |
1074 | } |
1075 | |
1076 | // ======================================================================= |
fc73a202 |
1077 | // function : Source |
1078 | // purpose : Returns shader source combined with prefix |
e276548b |
1079 | // ======================================================================= |
fc73a202 |
1080 | TCollection_AsciiString OpenGl_Workspace::ShaderSource::Source() const |
e276548b |
1081 | { |
fc73a202 |
1082 | static const TCollection_AsciiString aVersion = "#version 140"; |
e276548b |
1083 | |
fc73a202 |
1084 | if (myPrefix.IsEmpty()) |
e276548b |
1085 | { |
fc73a202 |
1086 | return aVersion + "\n" + mySource; |
e276548b |
1087 | } |
1088 | |
fc73a202 |
1089 | return aVersion + "\n" + myPrefix + "\n" + mySource; |
e276548b |
1090 | } |
1091 | |
1092 | // ======================================================================= |
fc73a202 |
1093 | // function : Load |
1094 | // purpose : Loads shader source from specified files |
e276548b |
1095 | // ======================================================================= |
fc73a202 |
1096 | void OpenGl_Workspace::ShaderSource::Load ( |
1097 | const TCollection_AsciiString* theFileNames, const Standard_Integer theCount) |
e276548b |
1098 | { |
fc73a202 |
1099 | mySource.Clear(); |
e276548b |
1100 | |
fc73a202 |
1101 | for (Standard_Integer anIndex = 0; anIndex < theCount; ++anIndex) |
1102 | { |
1103 | OSD_File aFile (theFileNames[anIndex]); |
e276548b |
1104 | |
fc73a202 |
1105 | Standard_ASSERT_RETURN (aFile.Exists(), |
1106 | "Error: Failed to find shader source file", /* none */); |
e276548b |
1107 | |
fc73a202 |
1108 | aFile.Open (OSD_ReadOnly, OSD_Protection()); |
265d4508 |
1109 | |
fc73a202 |
1110 | TCollection_AsciiString aSource; |
265d4508 |
1111 | |
fc73a202 |
1112 | Standard_ASSERT_RETURN (aFile.IsOpen(), |
1113 | "Error: Failed to open shader source file", /* none */); |
e276548b |
1114 | |
fc73a202 |
1115 | aFile.Read (aSource, (Standard_Integer) aFile.Size()); |
e276548b |
1116 | |
fc73a202 |
1117 | if (!aSource.IsEmpty()) |
1118 | { |
1119 | mySource += TCollection_AsciiString ("\n") + aSource; |
1120 | } |
68333c8f |
1121 | |
fc73a202 |
1122 | aFile.Close(); |
68333c8f |
1123 | } |
e276548b |
1124 | } |
1125 | |
1126 | // ======================================================================= |
fc73a202 |
1127 | // function : LoadShader |
1128 | // purpose : Creates new shader object with specified source |
e276548b |
1129 | // ======================================================================= |
fc73a202 |
1130 | Handle(OpenGl_ShaderObject) OpenGl_Workspace::LoadShader (const ShaderSource& theSource, GLenum theType) |
e276548b |
1131 | { |
fc73a202 |
1132 | Handle(OpenGl_ShaderObject) aShader = new OpenGl_ShaderObject (theType); |
e276548b |
1133 | |
fc73a202 |
1134 | if (!aShader->Create (myGlContext)) |
e276548b |
1135 | { |
fc73a202 |
1136 | const TCollection_ExtendedString aMessage = "Error: Failed to create shader object"; |
1137 | |
1138 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1139 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
e276548b |
1140 | |
fc73a202 |
1141 | aShader->Release (myGlContext.operator->()); |
e276548b |
1142 | |
fc73a202 |
1143 | return Handle(OpenGl_ShaderObject)(); |
e276548b |
1144 | } |
5322131b |
1145 | |
fc73a202 |
1146 | if (!aShader->LoadSource (myGlContext, theSource.Source())) |
1147 | { |
1148 | const TCollection_ExtendedString aMessage = "Error: Failed to set shader source"; |
1149 | |
1150 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1151 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
e276548b |
1152 | |
fc73a202 |
1153 | aShader->Release (myGlContext.operator->()); |
e276548b |
1154 | |
fc73a202 |
1155 | return Handle(OpenGl_ShaderObject)(); |
1156 | } |
e276548b |
1157 | |
fc73a202 |
1158 | TCollection_AsciiString aBuildLog; |
e276548b |
1159 | |
fc73a202 |
1160 | if (!aShader->Compile (myGlContext)) |
e276548b |
1161 | { |
fc73a202 |
1162 | if (aShader->FetchInfoLog (myGlContext, aBuildLog)) |
1163 | { |
1164 | const TCollection_ExtendedString aMessage = |
1165 | TCollection_ExtendedString ("Error: Failed to compile shader object:\n") + aBuildLog; |
1166 | |
e276548b |
1167 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1168 | std::cout << aBuildLog << std::endl; |
e276548b |
1169 | #endif |
e276548b |
1170 | |
fc73a202 |
1171 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1172 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
1173 | } |
1174 | |
1175 | aShader->Release (myGlContext.operator->()); |
1176 | |
1177 | return Handle(OpenGl_ShaderObject)(); |
1178 | } |
68333c8f |
1179 | |
e276548b |
1180 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1181 | if (aShader->FetchInfoLog (myGlContext, aBuildLog)) |
1182 | { |
1183 | if (!aBuildLog.IsEmpty()) |
1184 | { |
1185 | std::cout << aBuildLog << std::endl; |
1186 | } |
1187 | else |
1188 | { |
1189 | std::cout << "Info: shader build log is empty" << std::endl; |
1190 | } |
1191 | } |
e276548b |
1192 | #endif |
e276548b |
1193 | |
fc73a202 |
1194 | return aShader; |
e276548b |
1195 | } |
1196 | |
1197 | // ======================================================================= |
fc73a202 |
1198 | // function : SafeFailBack |
1199 | // purpose : Performs safe exit when shaders initialization fails |
e276548b |
1200 | // ======================================================================= |
fc73a202 |
1201 | Standard_Boolean OpenGl_Workspace::SafeFailBack (const TCollection_ExtendedString& theMessage) |
e276548b |
1202 | { |
fc73a202 |
1203 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1204 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, theMessage); |
265d4508 |
1205 | |
fc73a202 |
1206 | myComputeInitStatus = OpenGl_RT_FAIL; |
265d4508 |
1207 | |
fc73a202 |
1208 | ReleaseRaytraceResources(); |
1209 | |
1210 | return Standard_False; |
1211 | } |
e276548b |
1212 | |
25ef750e |
1213 | // ======================================================================= |
1214 | // function : GenerateShaderPrefix |
1215 | // purpose : Generates shader prefix based on current ray-tracing options |
1216 | // ======================================================================= |
1217 | TCollection_AsciiString OpenGl_Workspace::GenerateShaderPrefix() |
1218 | { |
1219 | TCollection_AsciiString aPrefixString = |
1220 | TCollection_AsciiString ("#define STACK_SIZE ") + TCollection_AsciiString (myRaytraceParameters.StackSize) + "\n" + |
1221 | TCollection_AsciiString ("#define NB_BOUNCES ") + TCollection_AsciiString (myRaytraceParameters.NbBounces); |
1222 | |
1223 | if (myRaytraceParameters.TransparentShadows) |
1224 | { |
1225 | aPrefixString += TCollection_AsciiString ("\n#define TRANSPARENT_SHADOWS"); |
1226 | } |
1227 | |
1228 | // If OpenGL driver supports bindless textures |
1229 | // activate texturing in ray-tracing mode |
1230 | if (myGlContext->arbTexBindless != NULL) |
1231 | { |
1232 | aPrefixString += TCollection_AsciiString ("\n#define USE_TEXTURES") + |
1233 | TCollection_AsciiString ("\n#define MAX_TEX_NUMBER ") + TCollection_AsciiString (OpenGl_RaytraceGeometry::MAX_TEX_NUMBER); |
1234 | } |
1235 | |
1236 | return aPrefixString; |
1237 | } |
1238 | |
fc73a202 |
1239 | // ======================================================================= |
1240 | // function : InitRaytraceResources |
1241 | // purpose : Initializes OpenGL/GLSL shader programs |
1242 | // ======================================================================= |
bc8c79bb |
1243 | Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView& theCView) |
fc73a202 |
1244 | { |
1245 | Standard_Boolean aToRebuildShaders = Standard_False; |
e276548b |
1246 | |
fc73a202 |
1247 | if (myComputeInitStatus == OpenGl_RT_INIT) |
1248 | { |
1249 | if (!myIsRaytraceDataValid) |
1250 | return Standard_True; |
e276548b |
1251 | |
fc73a202 |
1252 | const Standard_Integer aRequiredStackSize = |
1253 | myRaytraceGeometry.HighLevelTreeDepth() + myRaytraceGeometry.BottomLevelTreeDepth(); |
e276548b |
1254 | |
bc8c79bb |
1255 | if (myRaytraceParameters.StackSize < aRequiredStackSize) |
fc73a202 |
1256 | { |
bc8c79bb |
1257 | myRaytraceParameters.StackSize = Max (aRequiredStackSize, THE_DEFAULT_STACK_SIZE); |
e276548b |
1258 | |
fc73a202 |
1259 | aToRebuildShaders = Standard_True; |
1260 | } |
1261 | else |
1262 | { |
bc8c79bb |
1263 | if (aRequiredStackSize < myRaytraceParameters.StackSize) |
fc73a202 |
1264 | { |
bc8c79bb |
1265 | if (myRaytraceParameters.StackSize > THE_DEFAULT_STACK_SIZE) |
fc73a202 |
1266 | { |
bc8c79bb |
1267 | myRaytraceParameters.StackSize = Max (aRequiredStackSize, THE_DEFAULT_STACK_SIZE); |
fc73a202 |
1268 | aToRebuildShaders = Standard_True; |
1269 | } |
1270 | } |
1271 | } |
e276548b |
1272 | |
25ef750e |
1273 | if (theCView.RenderParams.RaytracingDepth != myRaytraceParameters.NbBounces) |
bc8c79bb |
1274 | { |
25ef750e |
1275 | myRaytraceParameters.NbBounces = theCView.RenderParams.RaytracingDepth; |
bc8c79bb |
1276 | aToRebuildShaders = Standard_True; |
1277 | } |
1278 | |
1279 | if (theCView.RenderParams.IsTransparentShadowEnabled != myRaytraceParameters.TransparentShadows) |
1280 | { |
1281 | myRaytraceParameters.TransparentShadows = theCView.RenderParams.IsTransparentShadowEnabled; |
1282 | aToRebuildShaders = Standard_True; |
1283 | } |
1284 | |
fc73a202 |
1285 | if (aToRebuildShaders) |
1286 | { |
e276548b |
1287 | #ifdef RAY_TRACE_PRINT_INFO |
bc8c79bb |
1288 | std::cout << "Info: Rebuild shaders with stack size: " << myRaytraceParameters.StackSize << std::endl; |
e276548b |
1289 | #endif |
e276548b |
1290 | |
bc8c79bb |
1291 | // Change state to force update all uniforms |
84c71f29 |
1292 | ++myViewModificationStatus; |
1293 | |
25ef750e |
1294 | TCollection_AsciiString aPrefixString = GenerateShaderPrefix(); |
bc8c79bb |
1295 | |
1296 | #ifdef RAY_TRACE_PRINT_INFO |
1297 | std::cout << "GLSL prefix string:" << std::endl << aPrefixString << std::endl; |
1298 | #endif |
265d4508 |
1299 | |
bc8c79bb |
1300 | myRaytraceShaderSource.SetPrefix (aPrefixString); |
1301 | myPostFSAAShaderSource.SetPrefix (aPrefixString); |
265d4508 |
1302 | |
fc73a202 |
1303 | if (!myRaytraceShader->LoadSource (myGlContext, myRaytraceShaderSource.Source()) |
1304 | || !myPostFSAAShader->LoadSource (myGlContext, myPostFSAAShaderSource.Source())) |
1305 | { |
1306 | return Standard_False; |
1307 | } |
265d4508 |
1308 | |
fc73a202 |
1309 | if (!myRaytraceShader->Compile (myGlContext) |
1310 | || !myPostFSAAShader->Compile (myGlContext)) |
1311 | { |
1312 | return Standard_False; |
1313 | } |
1314 | |
7d3e64ef |
1315 | myRaytraceProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
1316 | myPostFSAAProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
fc73a202 |
1317 | if (!myRaytraceProgram->Link (myGlContext) |
1318 | || !myPostFSAAProgram->Link (myGlContext)) |
1319 | { |
1320 | return Standard_False; |
1321 | } |
1322 | } |
e276548b |
1323 | } |
1324 | |
fc73a202 |
1325 | if (myComputeInitStatus == OpenGl_RT_NONE) |
1326 | { |
1327 | if (!myGlContext->IsGlGreaterEqual (3, 1)) |
1328 | { |
fc73a202 |
1329 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
25ef750e |
1330 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
1331 | "Ray-tracing requires OpenGL 3.1 and higher"); |
1332 | return Standard_False; |
1333 | } |
1334 | else if (!myGlContext->arbTboRGB32) |
1335 | { |
1336 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1337 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
1338 | "Ray-tracing requires OpenGL 4.0+ or GL_ARB_texture_buffer_object_rgb32 extension"); |
fc73a202 |
1339 | return Standard_False; |
1340 | } |
5322131b |
1341 | |
25ef750e |
1342 | myRaytraceParameters.NbBounces = theCView.RenderParams.RaytracingDepth; |
bc8c79bb |
1343 | |
fc73a202 |
1344 | TCollection_AsciiString aFolder = Graphic3d_ShaderProgram::ShadersFolder(); |
265d4508 |
1345 | |
fc73a202 |
1346 | if (aFolder.IsEmpty()) |
1347 | { |
1348 | const TCollection_ExtendedString aMessage = "Failed to locate shaders directory"; |
1349 | |
1350 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1351 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
1352 | |
1353 | return Standard_False; |
1354 | } |
265d4508 |
1355 | |
fc73a202 |
1356 | if (myIsRaytraceDataValid) |
1357 | { |
bc8c79bb |
1358 | myRaytraceParameters.StackSize = Max (THE_DEFAULT_STACK_SIZE, |
fc73a202 |
1359 | myRaytraceGeometry.HighLevelTreeDepth() + myRaytraceGeometry.BottomLevelTreeDepth()); |
1360 | } |
265d4508 |
1361 | |
25ef750e |
1362 | TCollection_AsciiString aPrefixString = GenerateShaderPrefix(); |
bc8c79bb |
1363 | |
1364 | #ifdef RAY_TRACE_PRINT_INFO |
1365 | std::cout << "GLSL prefix string:" << std::endl << aPrefixString << std::endl; |
1366 | #endif |
1367 | |
fc73a202 |
1368 | { |
1369 | Handle(OpenGl_ShaderObject) aBasicVertShader = LoadShader ( |
1370 | ShaderSource (aFolder + "/RaytraceBase.vs"), GL_VERTEX_SHADER); |
265d4508 |
1371 | |
fc73a202 |
1372 | if (aBasicVertShader.IsNull()) |
1373 | { |
1374 | return SafeFailBack ("Failed to set vertex shader source"); |
1375 | } |
265d4508 |
1376 | |
fc73a202 |
1377 | TCollection_AsciiString aFiles[] = { aFolder + "/RaytraceBase.fs", aFolder + "/RaytraceRender.fs" }; |
265d4508 |
1378 | |
fc73a202 |
1379 | myRaytraceShaderSource.Load (aFiles, 2); |
e276548b |
1380 | |
bc8c79bb |
1381 | myRaytraceShaderSource.SetPrefix (aPrefixString); |
265d4508 |
1382 | |
fc73a202 |
1383 | myRaytraceShader = LoadShader (myRaytraceShaderSource, GL_FRAGMENT_SHADER); |
265d4508 |
1384 | |
fc73a202 |
1385 | if (myRaytraceShader.IsNull()) |
1386 | { |
1387 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1388 | |
fc73a202 |
1389 | return SafeFailBack ("Failed to set ray-trace fragment shader source"); |
1390 | } |
265d4508 |
1391 | |
fc73a202 |
1392 | myRaytraceProgram = new OpenGl_ShaderProgram; |
5322131b |
1393 | |
fc73a202 |
1394 | if (!myRaytraceProgram->Create (myGlContext)) |
1395 | { |
1396 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1397 | |
fc73a202 |
1398 | return SafeFailBack ("Failed to create ray-trace shader program"); |
1399 | } |
265d4508 |
1400 | |
fc73a202 |
1401 | if (!myRaytraceProgram->AttachShader (myGlContext, aBasicVertShader) |
1402 | || !myRaytraceProgram->AttachShader (myGlContext, myRaytraceShader)) |
1403 | { |
1404 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1405 | |
fc73a202 |
1406 | return SafeFailBack ("Failed to attach ray-trace shader objects"); |
1407 | } |
265d4508 |
1408 | |
7d3e64ef |
1409 | myRaytraceProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
fc73a202 |
1410 | if (!myRaytraceProgram->Link (myGlContext)) |
1411 | { |
1412 | TCollection_AsciiString aLinkLog; |
e276548b |
1413 | |
fc73a202 |
1414 | if (myRaytraceProgram->FetchInfoLog (myGlContext, aLinkLog)) |
1415 | { |
1416 | #ifdef RAY_TRACE_PRINT_INFO |
1417 | std::cout << aLinkLog << std::endl; |
1418 | #endif |
1419 | } |
265d4508 |
1420 | |
fc73a202 |
1421 | return SafeFailBack ("Failed to link ray-trace shader program"); |
1422 | } |
1423 | } |
265d4508 |
1424 | |
fc73a202 |
1425 | { |
1426 | Handle(OpenGl_ShaderObject) aBasicVertShader = LoadShader ( |
1427 | ShaderSource (aFolder + "/RaytraceBase.vs"), GL_VERTEX_SHADER); |
265d4508 |
1428 | |
fc73a202 |
1429 | if (aBasicVertShader.IsNull()) |
1430 | { |
1431 | return SafeFailBack ("Failed to set vertex shader source"); |
1432 | } |
265d4508 |
1433 | |
fc73a202 |
1434 | TCollection_AsciiString aFiles[] = { aFolder + "/RaytraceBase.fs", aFolder + "/RaytraceSmooth.fs" }; |
265d4508 |
1435 | |
fc73a202 |
1436 | myPostFSAAShaderSource.Load (aFiles, 2); |
265d4508 |
1437 | |
bc8c79bb |
1438 | myPostFSAAShaderSource.SetPrefix (aPrefixString); |
fc73a202 |
1439 | |
1440 | myPostFSAAShader = LoadShader (myPostFSAAShaderSource, GL_FRAGMENT_SHADER); |
265d4508 |
1441 | |
fc73a202 |
1442 | if (myPostFSAAShader.IsNull()) |
1443 | { |
1444 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1445 | |
fc73a202 |
1446 | return SafeFailBack ("Failed to set FSAA fragment shader source"); |
1447 | } |
265d4508 |
1448 | |
fc73a202 |
1449 | myPostFSAAProgram = new OpenGl_ShaderProgram; |
265d4508 |
1450 | |
fc73a202 |
1451 | if (!myPostFSAAProgram->Create (myGlContext)) |
1452 | { |
1453 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1454 | |
fc73a202 |
1455 | return SafeFailBack ("Failed to create FSAA shader program"); |
1456 | } |
1457 | |
1458 | if (!myPostFSAAProgram->AttachShader (myGlContext, aBasicVertShader) |
1459 | || !myPostFSAAProgram->AttachShader (myGlContext, myPostFSAAShader)) |
1460 | { |
1461 | aBasicVertShader->Release (myGlContext.operator->()); |
1462 | |
1463 | return SafeFailBack ("Failed to attach FSAA shader objects"); |
1464 | } |
1465 | |
7d3e64ef |
1466 | myPostFSAAProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
fc73a202 |
1467 | if (!myPostFSAAProgram->Link (myGlContext)) |
1468 | { |
1469 | TCollection_AsciiString aLinkLog; |
1470 | |
1471 | if (myPostFSAAProgram->FetchInfoLog (myGlContext, aLinkLog)) |
1472 | { |
1473 | #ifdef RAY_TRACE_PRINT_INFO |
1474 | std::cout << aLinkLog << std::endl; |
1475 | #endif |
1476 | } |
1477 | |
1478 | return SafeFailBack ("Failed to link FSAA shader program"); |
1479 | } |
e276548b |
1480 | } |
fc73a202 |
1481 | } |
e276548b |
1482 | |
fc73a202 |
1483 | if (myComputeInitStatus == OpenGl_RT_NONE || aToRebuildShaders) |
1484 | { |
1485 | for (Standard_Integer anIndex = 0; anIndex < 2; ++anIndex) |
e276548b |
1486 | { |
fc73a202 |
1487 | Handle(OpenGl_ShaderProgram)& aShaderProgram = |
1488 | (anIndex == 0) ? myRaytraceProgram : myPostFSAAProgram; |
1489 | |
7d3e64ef |
1490 | myGlContext->BindProgram (aShaderProgram); |
fc73a202 |
1491 | |
1492 | aShaderProgram->SetSampler (myGlContext, |
1493 | "uSceneMinPointTexture", OpenGl_RT_SceneMinPointTexture); |
1494 | aShaderProgram->SetSampler (myGlContext, |
1495 | "uSceneMaxPointTexture", OpenGl_RT_SceneMaxPointTexture); |
1496 | aShaderProgram->SetSampler (myGlContext, |
1497 | "uSceneNodeInfoTexture", OpenGl_RT_SceneNodeInfoTexture); |
1498 | aShaderProgram->SetSampler (myGlContext, |
1499 | "uObjectMinPointTexture", OpenGl_RT_ObjectMinPointTexture); |
1500 | aShaderProgram->SetSampler (myGlContext, |
1501 | "uObjectMaxPointTexture", OpenGl_RT_ObjectMaxPointTexture); |
1502 | aShaderProgram->SetSampler (myGlContext, |
1503 | "uObjectNodeInfoTexture", OpenGl_RT_ObjectNodeInfoTexture); |
1504 | aShaderProgram->SetSampler (myGlContext, |
1505 | "uGeometryVertexTexture", OpenGl_RT_GeometryVertexTexture); |
1506 | aShaderProgram->SetSampler (myGlContext, |
1507 | "uGeometryNormalTexture", OpenGl_RT_GeometryNormalTexture); |
1508 | aShaderProgram->SetSampler (myGlContext, |
25ef750e |
1509 | "uGeometryTexCrdTexture", OpenGl_RT_GeometryTexCrdTexture); |
fc73a202 |
1510 | aShaderProgram->SetSampler (myGlContext, |
25ef750e |
1511 | "uGeometryTriangTexture", OpenGl_RT_GeometryTriangTexture); |
84c71f29 |
1512 | aShaderProgram->SetSampler (myGlContext, |
1513 | "uSceneTransformTexture", OpenGl_RT_SceneTransformTexture); |
1514 | aShaderProgram->SetSampler (myGlContext, |
1515 | "uEnvironmentMapTexture", OpenGl_RT_EnvironmentMapTexture); |
25ef750e |
1516 | aShaderProgram->SetSampler (myGlContext, |
1517 | "uRaytraceMaterialTexture", OpenGl_RT_RaytraceMaterialTexture); |
1518 | aShaderProgram->SetSampler (myGlContext, |
1519 | "uRaytraceLightSrcTexture", OpenGl_RT_RaytraceLightSrcTexture); |
fc73a202 |
1520 | |
a89742cf |
1521 | aShaderProgram->SetSampler (myGlContext, |
1522 | "uOpenGlColorTexture", OpenGl_RT_OpenGlColorTexture); |
1523 | aShaderProgram->SetSampler (myGlContext, |
1524 | "uOpenGlDepthTexture", OpenGl_RT_OpenGlDepthTexture); |
1525 | |
fc73a202 |
1526 | if (anIndex == 1) |
1527 | { |
1528 | aShaderProgram->SetSampler (myGlContext, |
1529 | "uFSAAInputTexture", OpenGl_RT_FSAAInputTexture); |
1530 | } |
265d4508 |
1531 | |
fc73a202 |
1532 | myUniformLocations[anIndex][OpenGl_RT_aPosition] = |
7d3e64ef |
1533 | aShaderProgram->GetAttributeLocation (myGlContext, "occVertex"); |
fc73a202 |
1534 | |
1535 | myUniformLocations[anIndex][OpenGl_RT_uOriginLB] = |
1536 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginLB"); |
1537 | myUniformLocations[anIndex][OpenGl_RT_uOriginRB] = |
1538 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginRB"); |
1539 | myUniformLocations[anIndex][OpenGl_RT_uOriginLT] = |
1540 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginLT"); |
1541 | myUniformLocations[anIndex][OpenGl_RT_uOriginRT] = |
1542 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginRT"); |
1543 | myUniformLocations[anIndex][OpenGl_RT_uDirectLB] = |
1544 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectLB"); |
1545 | myUniformLocations[anIndex][OpenGl_RT_uDirectRB] = |
1546 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectRB"); |
1547 | myUniformLocations[anIndex][OpenGl_RT_uDirectLT] = |
1548 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectLT"); |
1549 | myUniformLocations[anIndex][OpenGl_RT_uDirectRT] = |
1550 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectRT"); |
25ef750e |
1551 | myUniformLocations[anIndex][OpenGl_RT_uUnviewMat] = |
1552 | aShaderProgram->GetUniformLocation (myGlContext, "uUnviewMat"); |
fc73a202 |
1553 | |
1554 | myUniformLocations[anIndex][OpenGl_RT_uSceneRad] = |
1555 | aShaderProgram->GetUniformLocation (myGlContext, "uSceneRadius"); |
1556 | myUniformLocations[anIndex][OpenGl_RT_uSceneEps] = |
1557 | aShaderProgram->GetUniformLocation (myGlContext, "uSceneEpsilon"); |
25ef750e |
1558 | myUniformLocations[anIndex][OpenGl_RT_uLightCount] = |
1559 | aShaderProgram->GetUniformLocation (myGlContext, "uLightCount"); |
1560 | myUniformLocations[anIndex][OpenGl_RT_uLightAmbnt] = |
1561 | aShaderProgram->GetUniformLocation (myGlContext, "uGlobalAmbient"); |
fc73a202 |
1562 | |
1563 | myUniformLocations[anIndex][OpenGl_RT_uOffsetX] = |
1564 | aShaderProgram->GetUniformLocation (myGlContext, "uOffsetX"); |
1565 | myUniformLocations[anIndex][OpenGl_RT_uOffsetY] = |
1566 | aShaderProgram->GetUniformLocation (myGlContext, "uOffsetY"); |
1567 | myUniformLocations[anIndex][OpenGl_RT_uSamples] = |
1568 | aShaderProgram->GetUniformLocation (myGlContext, "uSamples"); |
84c71f29 |
1569 | |
25ef750e |
1570 | myUniformLocations[anIndex][OpenGl_RT_uTextures] = |
1571 | aShaderProgram->GetUniformLocation (myGlContext, "uTextureSamplers"); |
1572 | |
1573 | myUniformLocations[anIndex][OpenGl_RT_uShadEnabled] = |
1574 | aShaderProgram->GetUniformLocation (myGlContext, "uShadowsEnable"); |
1575 | myUniformLocations[anIndex][OpenGl_RT_uReflEnabled] = |
1576 | aShaderProgram->GetUniformLocation (myGlContext, "uReflectionsEnable"); |
1577 | myUniformLocations[anIndex][OpenGl_RT_uEnvMapEnable] = |
84c71f29 |
1578 | aShaderProgram->GetUniformLocation (myGlContext, "uEnvironmentEnable"); |
fc73a202 |
1579 | } |
265d4508 |
1580 | |
7d3e64ef |
1581 | myGlContext->BindProgram (NULL); |
fc73a202 |
1582 | } |
265d4508 |
1583 | |
fc73a202 |
1584 | if (myComputeInitStatus != OpenGl_RT_NONE) |
1585 | { |
1586 | return myComputeInitStatus == OpenGl_RT_INIT; |
1587 | } |
265d4508 |
1588 | |
fc73a202 |
1589 | if (myRaytraceFBO1.IsNull()) |
1590 | { |
1591 | myRaytraceFBO1 = new OpenGl_FrameBuffer; |
1592 | } |
265d4508 |
1593 | |
fc73a202 |
1594 | if (myRaytraceFBO2.IsNull()) |
1595 | { |
1596 | myRaytraceFBO2 = new OpenGl_FrameBuffer; |
1597 | } |
265d4508 |
1598 | |
fc73a202 |
1599 | const GLfloat aVertices[] = { -1.f, -1.f, 0.f, |
1600 | -1.f, 1.f, 0.f, |
1601 | 1.f, 1.f, 0.f, |
1602 | 1.f, 1.f, 0.f, |
1603 | 1.f, -1.f, 0.f, |
1604 | -1.f, -1.f, 0.f }; |
265d4508 |
1605 | |
fc73a202 |
1606 | myRaytraceScreenQuad.Init (myGlContext, 3, 6, aVertices); |
265d4508 |
1607 | |
fc73a202 |
1608 | myComputeInitStatus = OpenGl_RT_INIT; // initialized in normal way |
ca3c13d1 |
1609 | |
fc73a202 |
1610 | return Standard_True; |
1611 | } |
265d4508 |
1612 | |
fc73a202 |
1613 | // ======================================================================= |
1614 | // function : NullifyResource |
1615 | // purpose : |
1616 | // ======================================================================= |
1617 | inline void NullifyResource (const Handle(OpenGl_Context)& theContext, |
1618 | Handle(OpenGl_Resource)& theResource) |
1619 | { |
1620 | if (!theResource.IsNull()) |
1621 | { |
1622 | theResource->Release (theContext.operator->()); |
1623 | theResource.Nullify(); |
1624 | } |
1625 | } |
265d4508 |
1626 | |
fc73a202 |
1627 | // ======================================================================= |
1628 | // function : ReleaseRaytraceResources |
1629 | // purpose : Releases OpenGL/GLSL shader programs |
1630 | // ======================================================================= |
1631 | void OpenGl_Workspace::ReleaseRaytraceResources() |
1632 | { |
a89742cf |
1633 | NullifyResource (myGlContext, myOpenGlFBO); |
fc73a202 |
1634 | NullifyResource (myGlContext, myRaytraceFBO1); |
1635 | NullifyResource (myGlContext, myRaytraceFBO2); |
265d4508 |
1636 | |
fc73a202 |
1637 | NullifyResource (myGlContext, myRaytraceShader); |
1638 | NullifyResource (myGlContext, myPostFSAAShader); |
265d4508 |
1639 | |
fc73a202 |
1640 | NullifyResource (myGlContext, myRaytraceProgram); |
1641 | NullifyResource (myGlContext, myPostFSAAProgram); |
265d4508 |
1642 | |
fc73a202 |
1643 | NullifyResource (myGlContext, mySceneNodeInfoTexture); |
1644 | NullifyResource (myGlContext, mySceneMinPointTexture); |
1645 | NullifyResource (myGlContext, mySceneMaxPointTexture); |
265d4508 |
1646 | |
fc73a202 |
1647 | NullifyResource (myGlContext, myObjectNodeInfoTexture); |
1648 | NullifyResource (myGlContext, myObjectMinPointTexture); |
1649 | NullifyResource (myGlContext, myObjectMaxPointTexture); |
265d4508 |
1650 | |
fc73a202 |
1651 | NullifyResource (myGlContext, myGeometryVertexTexture); |
1652 | NullifyResource (myGlContext, myGeometryNormalTexture); |
25ef750e |
1653 | NullifyResource (myGlContext, myGeometryTexCrdTexture); |
fc73a202 |
1654 | NullifyResource (myGlContext, myGeometryTriangTexture); |
bc8c79bb |
1655 | NullifyResource (myGlContext, mySceneTransformTexture); |
265d4508 |
1656 | |
fc73a202 |
1657 | NullifyResource (myGlContext, myRaytraceLightSrcTexture); |
1658 | NullifyResource (myGlContext, myRaytraceMaterialTexture); |
265d4508 |
1659 | |
fc73a202 |
1660 | if (myRaytraceScreenQuad.IsValid()) |
1661 | myRaytraceScreenQuad.Release (myGlContext.operator->()); |
1662 | } |
265d4508 |
1663 | |
fc73a202 |
1664 | // ======================================================================= |
1665 | // function : UploadRaytraceData |
1666 | // purpose : Uploads ray-trace data to the GPU |
1667 | // ======================================================================= |
1668 | Standard_Boolean OpenGl_Workspace::UploadRaytraceData() |
1669 | { |
1670 | if (!myGlContext->IsGlGreaterEqual (3, 1)) |
1671 | { |
265d4508 |
1672 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1673 | std::cout << "Error: OpenGL version is less than 3.1" << std::endl; |
265d4508 |
1674 | #endif |
fc73a202 |
1675 | return Standard_False; |
e276548b |
1676 | } |
1677 | |
25ef750e |
1678 | ///////////////////////////////////////////////////////////////////////////// |
1679 | // Prepare OpenGL textures |
1680 | |
1681 | if (myGlContext->arbTexBindless != NULL) |
1682 | { |
1683 | // If OpenGL driver supports bindless textures we need |
1684 | // to get unique 64- bit handles for using on the GPU |
1685 | if (!myRaytraceGeometry.UpdateTextureHandles (myGlContext)) |
1686 | { |
1687 | #ifdef RAY_TRACE_PRINT_INFO |
1688 | std::cout << "Error: Failed to get OpenGL texture handles" << std::endl; |
1689 | #endif |
1690 | return Standard_False; |
1691 | } |
1692 | } |
1693 | |
265d4508 |
1694 | ///////////////////////////////////////////////////////////////////////////// |
fc73a202 |
1695 | // Create OpenGL texture buffers |
265d4508 |
1696 | |
fc73a202 |
1697 | if (mySceneNodeInfoTexture.IsNull()) // create hight-level BVH buffers |
e276548b |
1698 | { |
fc73a202 |
1699 | mySceneNodeInfoTexture = new OpenGl_TextureBufferArb; |
1700 | mySceneMinPointTexture = new OpenGl_TextureBufferArb; |
1701 | mySceneMaxPointTexture = new OpenGl_TextureBufferArb; |
84c71f29 |
1702 | mySceneTransformTexture = new OpenGl_TextureBufferArb; |
265d4508 |
1703 | |
fc73a202 |
1704 | if (!mySceneNodeInfoTexture->Create (myGlContext) |
84c71f29 |
1705 | || !mySceneMinPointTexture->Create (myGlContext) |
1706 | || !mySceneMaxPointTexture->Create (myGlContext) |
1707 | || !mySceneTransformTexture->Create (myGlContext)) |
e276548b |
1708 | { |
fc73a202 |
1709 | #ifdef RAY_TRACE_PRINT_INFO |
1710 | std::cout << "Error: Failed to create buffers for high-level scene BVH" << std::endl; |
1711 | #endif |
e276548b |
1712 | return Standard_False; |
1713 | } |
1714 | } |
1715 | |
fc73a202 |
1716 | if (myObjectNodeInfoTexture.IsNull()) // create bottom-level BVH buffers |
265d4508 |
1717 | { |
fc73a202 |
1718 | myObjectNodeInfoTexture = new OpenGl_TextureBufferArb; |
1719 | myObjectMinPointTexture = new OpenGl_TextureBufferArb; |
1720 | myObjectMaxPointTexture = new OpenGl_TextureBufferArb; |
e276548b |
1721 | |
fc73a202 |
1722 | if (!myObjectNodeInfoTexture->Create (myGlContext) |
25ef750e |
1723 | || !myObjectMinPointTexture->Create (myGlContext) |
1724 | || !myObjectMaxPointTexture->Create (myGlContext)) |
fc73a202 |
1725 | { |
e276548b |
1726 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1727 | std::cout << "Error: Failed to create buffers for bottom-level scene BVH" << std::endl; |
1728 | #endif |
1729 | return Standard_False; |
1730 | } |
1731 | } |
5322131b |
1732 | |
fc73a202 |
1733 | if (myGeometryVertexTexture.IsNull()) // create geometry buffers |
265d4508 |
1734 | { |
fc73a202 |
1735 | myGeometryVertexTexture = new OpenGl_TextureBufferArb; |
1736 | myGeometryNormalTexture = new OpenGl_TextureBufferArb; |
25ef750e |
1737 | myGeometryTexCrdTexture = new OpenGl_TextureBufferArb; |
fc73a202 |
1738 | myGeometryTriangTexture = new OpenGl_TextureBufferArb; |
e276548b |
1739 | |
fc73a202 |
1740 | if (!myGeometryVertexTexture->Create (myGlContext) |
25ef750e |
1741 | || !myGeometryNormalTexture->Create (myGlContext) |
1742 | || !myGeometryTexCrdTexture->Create (myGlContext) |
1743 | || !myGeometryTriangTexture->Create (myGlContext)) |
fc73a202 |
1744 | { |
1745 | #ifdef RAY_TRACE_PRINT_INFO |
1746 | std::cout << "Error: Failed to create buffers for triangulation data" << std::endl; |
1747 | #endif |
1748 | return Standard_False; |
1749 | } |
265d4508 |
1750 | } |
5322131b |
1751 | |
fc73a202 |
1752 | if (myRaytraceMaterialTexture.IsNull()) // create material buffer |
1753 | { |
1754 | myRaytraceMaterialTexture = new OpenGl_TextureBufferArb; |
e276548b |
1755 | |
fc73a202 |
1756 | if (!myRaytraceMaterialTexture->Create (myGlContext)) |
1757 | { |
1758 | #ifdef RAY_TRACE_PRINT_INFO |
1759 | std::cout << "Error: Failed to create buffers for material data" << std::endl; |
e276548b |
1760 | #endif |
fc73a202 |
1761 | return Standard_False; |
1762 | } |
1763 | } |
e276548b |
1764 | |
fc73a202 |
1765 | ///////////////////////////////////////////////////////////////////////////// |
bc8c79bb |
1766 | // Write top-level BVH buffers |
e276548b |
1767 | |
25ef750e |
1768 | const NCollection_Handle<BVH_Tree<Standard_ShortReal, 3> >& aBVH = myRaytraceGeometry.BVH(); |
e276548b |
1769 | |
fc73a202 |
1770 | bool aResult = true; |
fc73a202 |
1771 | if (!aBVH->NodeInfoBuffer().empty()) |
1772 | { |
5cff985a |
1773 | aResult &= mySceneNodeInfoTexture->Init (myGlContext, 4, GLsizei (aBVH->NodeInfoBuffer().size()), |
1774 | reinterpret_cast<const GLuint*> (&aBVH->NodeInfoBuffer().front())); |
25ef750e |
1775 | aResult &= mySceneMinPointTexture->Init (myGlContext, 3, GLsizei (aBVH->MinPointBuffer().size()), |
5cff985a |
1776 | reinterpret_cast<const GLfloat*> (&aBVH->MinPointBuffer().front())); |
25ef750e |
1777 | aResult &= mySceneMaxPointTexture->Init (myGlContext, 3, GLsizei (aBVH->MaxPointBuffer().size()), |
5cff985a |
1778 | reinterpret_cast<const GLfloat*> (&aBVH->MaxPointBuffer().front())); |
fc73a202 |
1779 | } |
fc73a202 |
1780 | if (!aResult) |
1781 | { |
1782 | #ifdef RAY_TRACE_PRINT_INFO |
1783 | std::cout << "Error: Failed to upload buffers for high-level scene BVH" << std::endl; |
1784 | #endif |
e276548b |
1785 | return Standard_False; |
1786 | } |
1787 | |
84c71f29 |
1788 | ///////////////////////////////////////////////////////////////////////////// |
1789 | // Write transform buffer |
1790 | |
1791 | BVH_Mat4f* aNodeTransforms = new BVH_Mat4f[myRaytraceGeometry.Size()]; |
84c71f29 |
1792 | |
1793 | for (Standard_Integer anElemIndex = 0; anElemIndex < myRaytraceGeometry.Size(); ++anElemIndex) |
1794 | { |
1795 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
1796 | myRaytraceGeometry.Objects().ChangeValue (anElemIndex).operator->()); |
1797 | |
1798 | const BVH_Transform<Standard_ShortReal, 4>* aTransform = |
1799 | dynamic_cast<const BVH_Transform<Standard_ShortReal, 4>* > (aTriangleSet->Properties().operator->()); |
1800 | |
1801 | Standard_ASSERT_RETURN (aTransform != NULL, |
1802 | "OpenGl_TriangleSet does not contain transform", Standard_False); |
1803 | |
1804 | aNodeTransforms[anElemIndex] = aTransform->Inversed(); |
84c71f29 |
1805 | } |
1806 | |
1807 | aResult &= mySceneTransformTexture->Init (myGlContext, 4, |
1808 | myRaytraceGeometry.Size() * 4, reinterpret_cast<const GLfloat*> (aNodeTransforms)); |
1809 | |
25ef750e |
1810 | delete [] aNodeTransforms; |
84c71f29 |
1811 | |
1812 | ///////////////////////////////////////////////////////////////////////////// |
bc8c79bb |
1813 | // Write geometry and bottom-level BVH buffers |
84c71f29 |
1814 | |
fc73a202 |
1815 | Standard_Size aTotalVerticesNb = 0; |
1816 | Standard_Size aTotalElementsNb = 0; |
1817 | Standard_Size aTotalBVHNodesNb = 0; |
265d4508 |
1818 | |
fc73a202 |
1819 | for (Standard_Integer anElemIndex = 0; anElemIndex < myRaytraceGeometry.Size(); ++anElemIndex) |
1820 | { |
1821 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
1822 | myRaytraceGeometry.Objects().ChangeValue (anElemIndex).operator->()); |
265d4508 |
1823 | |
fc73a202 |
1824 | Standard_ASSERT_RETURN (aTriangleSet != NULL, |
1825 | "Error: Failed to get triangulation of OpenGL element", Standard_False); |
1826 | |
1827 | aTotalVerticesNb += aTriangleSet->Vertices.size(); |
1828 | aTotalElementsNb += aTriangleSet->Elements.size(); |
e276548b |
1829 | |
fc73a202 |
1830 | Standard_ASSERT_RETURN (!aTriangleSet->BVH().IsNull(), |
1831 | "Error: Failed to get bottom-level BVH of OpenGL element", Standard_False); |
265d4508 |
1832 | |
fc73a202 |
1833 | aTotalBVHNodesNb += aTriangleSet->BVH()->NodeInfoBuffer().size(); |
1834 | } |
e276548b |
1835 | |
fc73a202 |
1836 | if (aTotalBVHNodesNb != 0) |
e276548b |
1837 | { |
25ef750e |
1838 | aResult &= myObjectNodeInfoTexture->Init ( |
1839 | myGlContext, 4, GLsizei (aTotalBVHNodesNb), static_cast<const GLuint*> (NULL)); |
1840 | aResult &= myObjectMinPointTexture->Init ( |
1841 | myGlContext, 3, GLsizei (aTotalBVHNodesNb), static_cast<const GLfloat*> (NULL)); |
1842 | aResult &= myObjectMaxPointTexture->Init ( |
1843 | myGlContext, 3, GLsizei (aTotalBVHNodesNb), static_cast<const GLfloat*> (NULL)); |
fc73a202 |
1844 | } |
265d4508 |
1845 | |
fc73a202 |
1846 | if (!aResult) |
1847 | { |
1848 | #ifdef RAY_TRACE_PRINT_INFO |
1849 | std::cout << "Error: Failed to upload buffers for bottom-level scene BVH" << std::endl; |
1850 | #endif |
1851 | return Standard_False; |
1852 | } |
e276548b |
1853 | |
fc73a202 |
1854 | if (aTotalElementsNb != 0) |
1855 | { |
25ef750e |
1856 | aResult &= myGeometryTriangTexture->Init ( |
1857 | myGlContext, 4, GLsizei (aTotalElementsNb), static_cast<const GLuint*> (NULL)); |
fc73a202 |
1858 | } |
265d4508 |
1859 | |
fc73a202 |
1860 | if (aTotalVerticesNb != 0) |
1861 | { |
25ef750e |
1862 | aResult &= myGeometryVertexTexture->Init ( |
1863 | myGlContext, 3, GLsizei (aTotalVerticesNb), static_cast<const GLfloat*> (NULL)); |
1864 | aResult &= myGeometryNormalTexture->Init ( |
1865 | myGlContext, 3, GLsizei (aTotalVerticesNb), static_cast<const GLfloat*> (NULL)); |
1866 | aResult &= myGeometryTexCrdTexture->Init ( |
1867 | myGlContext, 2, GLsizei (aTotalVerticesNb), static_cast<const GLfloat*> (NULL)); |
fc73a202 |
1868 | } |
265d4508 |
1869 | |
fc73a202 |
1870 | if (!aResult) |
1871 | { |
1872 | #ifdef RAY_TRACE_PRINT_INFO |
1873 | std::cout << "Error: Failed to upload buffers for scene geometry" << std::endl; |
1874 | #endif |
1875 | return Standard_False; |
1876 | } |
265d4508 |
1877 | |
fc73a202 |
1878 | for (Standard_Integer aNodeIdx = 0; aNodeIdx < aBVH->Length(); ++aNodeIdx) |
1879 | { |
1880 | if (!aBVH->IsOuter (aNodeIdx)) |
1881 | continue; |
265d4508 |
1882 | |
fc73a202 |
1883 | OpenGl_TriangleSet* aTriangleSet = myRaytraceGeometry.TriangleSet (aNodeIdx); |
e276548b |
1884 | |
fc73a202 |
1885 | Standard_ASSERT_RETURN (aTriangleSet != NULL, |
1886 | "Error: Failed to get triangulation of OpenGL element", Standard_False); |
e276548b |
1887 | |
fc73a202 |
1888 | const Standard_Integer aBVHOffset = myRaytraceGeometry.AccelerationOffset (aNodeIdx); |
e276548b |
1889 | |
fc73a202 |
1890 | Standard_ASSERT_RETURN (aBVHOffset != OpenGl_RaytraceGeometry::INVALID_OFFSET, |
1891 | "Error: Failed to get offset for bottom-level BVH", Standard_False); |
e276548b |
1892 | |
fc73a202 |
1893 | const size_t aBVHBuffserSize = aTriangleSet->BVH()->NodeInfoBuffer().size(); |
265d4508 |
1894 | |
fc73a202 |
1895 | if (aBVHBuffserSize != 0) |
1896 | { |
5cff985a |
1897 | aResult &= myObjectNodeInfoTexture->SubData (myGlContext, aBVHOffset, GLsizei (aBVHBuffserSize), |
1898 | reinterpret_cast<const GLuint*> (&aTriangleSet->BVH()->NodeInfoBuffer().front())); |
1899 | aResult &= myObjectMinPointTexture->SubData (myGlContext, aBVHOffset, GLsizei (aBVHBuffserSize), |
1900 | reinterpret_cast<const GLfloat*> (&aTriangleSet->BVH()->MinPointBuffer().front())); |
1901 | aResult &= myObjectMaxPointTexture->SubData (myGlContext, aBVHOffset, GLsizei (aBVHBuffserSize), |
1902 | reinterpret_cast<const GLfloat*> (&aTriangleSet->BVH()->MaxPointBuffer().front())); |
fc73a202 |
1903 | if (!aResult) |
e276548b |
1904 | { |
fc73a202 |
1905 | #ifdef RAY_TRACE_PRINT_INFO |
1906 | std::cout << "Error: Failed to upload buffers for bottom-level scene BVHs" << std::endl; |
1907 | #endif |
e276548b |
1908 | return Standard_False; |
1909 | } |
1910 | } |
1911 | |
fc73a202 |
1912 | const Standard_Integer aVerticesOffset = myRaytraceGeometry.VerticesOffset (aNodeIdx); |
265d4508 |
1913 | |
fc73a202 |
1914 | Standard_ASSERT_RETURN (aVerticesOffset != OpenGl_RaytraceGeometry::INVALID_OFFSET, |
1915 | "Error: Failed to get offset for triangulation vertices of OpenGL element", Standard_False); |
265d4508 |
1916 | |
fc73a202 |
1917 | if (!aTriangleSet->Vertices.empty()) |
1918 | { |
5cff985a |
1919 | aResult &= myGeometryNormalTexture->SubData (myGlContext, aVerticesOffset, GLsizei (aTriangleSet->Normals.size()), |
1920 | reinterpret_cast<const GLfloat*> (&aTriangleSet->Normals.front())); |
25ef750e |
1921 | aResult &= myGeometryTexCrdTexture->SubData (myGlContext, aVerticesOffset, GLsizei (aTriangleSet->TexCrds.size()), |
1922 | reinterpret_cast<const GLfloat*> (&aTriangleSet->TexCrds.front())); |
5cff985a |
1923 | aResult &= myGeometryVertexTexture->SubData (myGlContext, aVerticesOffset, GLsizei (aTriangleSet->Vertices.size()), |
1924 | reinterpret_cast<const GLfloat*> (&aTriangleSet->Vertices.front())); |
fc73a202 |
1925 | } |
e276548b |
1926 | |
fc73a202 |
1927 | const Standard_Integer anElementsOffset = myRaytraceGeometry.ElementsOffset (aNodeIdx); |
265d4508 |
1928 | |
fc73a202 |
1929 | Standard_ASSERT_RETURN (anElementsOffset != OpenGl_RaytraceGeometry::INVALID_OFFSET, |
1930 | "Error: Failed to get offset for triangulation elements of OpenGL element", Standard_False); |
e276548b |
1931 | |
fc73a202 |
1932 | if (!aTriangleSet->Elements.empty()) |
e276548b |
1933 | { |
5cff985a |
1934 | aResult &= myGeometryTriangTexture->SubData (myGlContext, anElementsOffset, GLsizei (aTriangleSet->Elements.size()), |
1935 | reinterpret_cast<const GLuint*> (&aTriangleSet->Elements.front())); |
e276548b |
1936 | } |
265d4508 |
1937 | |
fc73a202 |
1938 | if (!aResult) |
1939 | { |
1940 | #ifdef RAY_TRACE_PRINT_INFO |
1941 | std::cout << "Error: Failed to upload triangulation buffers for OpenGL element" << std::endl; |
e276548b |
1942 | #endif |
fc73a202 |
1943 | return Standard_False; |
1944 | } |
e276548b |
1945 | } |
e276548b |
1946 | |
25ef750e |
1947 | ///////////////////////////////////////////////////////////////////////////// |
1948 | // Write material buffer |
1949 | |
fc73a202 |
1950 | if (myRaytraceGeometry.Materials.size() != 0) |
1951 | { |
25ef750e |
1952 | aResult &= myRaytraceMaterialTexture->Init (myGlContext, 4, |
1953 | GLsizei (myRaytraceGeometry.Materials.size() * 11), myRaytraceGeometry.Materials.front().Packed()); |
1954 | |
fc73a202 |
1955 | if (!aResult) |
1956 | { |
1957 | #ifdef RAY_TRACE_PRINT_INFO |
1958 | std::cout << "Error: Failed to upload material buffer" << std::endl; |
1959 | #endif |
1960 | return Standard_False; |
1961 | } |
1962 | } |
e276548b |
1963 | |
fc73a202 |
1964 | myIsRaytraceDataValid = myRaytraceGeometry.Objects().Size() != 0; |
e276548b |
1965 | |
fc73a202 |
1966 | #ifdef RAY_TRACE_PRINT_INFO |
e276548b |
1967 | |
fc73a202 |
1968 | Standard_ShortReal aMemUsed = 0.f; |
e276548b |
1969 | |
fc73a202 |
1970 | for (Standard_Integer anElemIdx = 0; anElemIdx < myRaytraceGeometry.Size(); ++anElemIdx) |
1971 | { |
1972 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
1973 | myRaytraceGeometry.Objects().ChangeValue (anElemIdx).operator->()); |
e276548b |
1974 | |
fc73a202 |
1975 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1976 | aTriangleSet->Vertices.size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1977 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1978 | aTriangleSet->Normals.size() * sizeof (BVH_Vec3f)); |
1979 | aMemUsed += static_cast<Standard_ShortReal> ( |
1980 | aTriangleSet->TexCrds.size() * sizeof (BVH_Vec2f)); |
fc73a202 |
1981 | aMemUsed += static_cast<Standard_ShortReal> ( |
1982 | aTriangleSet->Elements.size() * sizeof (BVH_Vec4i)); |
e276548b |
1983 | |
fc73a202 |
1984 | aMemUsed += static_cast<Standard_ShortReal> ( |
1985 | aTriangleSet->BVH()->NodeInfoBuffer().size() * sizeof (BVH_Vec4i)); |
1986 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1987 | aTriangleSet->BVH()->MinPointBuffer().size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1988 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1989 | aTriangleSet->BVH()->MaxPointBuffer().size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1990 | } |
e276548b |
1991 | |
fc73a202 |
1992 | aMemUsed += static_cast<Standard_ShortReal> ( |
1993 | myRaytraceGeometry.BVH()->NodeInfoBuffer().size() * sizeof (BVH_Vec4i)); |
1994 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1995 | myRaytraceGeometry.BVH()->MinPointBuffer().size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1996 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1997 | myRaytraceGeometry.BVH()->MaxPointBuffer().size() * sizeof (BVH_Vec3f)); |
e276548b |
1998 | |
fc73a202 |
1999 | std::cout << "GPU Memory Used (MB): ~" << aMemUsed / 1048576 << std::endl; |
e276548b |
2000 | |
fc73a202 |
2001 | #endif |
e276548b |
2002 | |
fc73a202 |
2003 | return aResult; |
2004 | } |
e276548b |
2005 | |
fc73a202 |
2006 | // ======================================================================= |
2007 | // function : ResizeRaytraceBuffers |
2008 | // purpose : Resizes OpenGL frame buffers |
2009 | // ======================================================================= |
2010 | Standard_Boolean OpenGl_Workspace::ResizeRaytraceBuffers (const Standard_Integer theSizeX, |
2011 | const Standard_Integer theSizeY) |
2012 | { |
2013 | if (myRaytraceFBO1->GetVPSizeX() != theSizeX |
2014 | || myRaytraceFBO1->GetVPSizeY() != theSizeY) |
2015 | { |
2016 | myRaytraceFBO1->Init (myGlContext, theSizeX, theSizeY); |
2017 | myRaytraceFBO2->Init (myGlContext, theSizeX, theSizeY); |
2018 | } |
e276548b |
2019 | |
fc73a202 |
2020 | return Standard_True; |
e276548b |
2021 | } |
2022 | |
2023 | // ======================================================================= |
fc73a202 |
2024 | // function : UpdateCamera |
2025 | // purpose : Generates viewing rays for corners of screen quad |
e276548b |
2026 | // ======================================================================= |
25ef750e |
2027 | void OpenGl_Workspace::UpdateCamera (const OpenGl_Mat4& theOrientation, |
2028 | const OpenGl_Mat4& theViewMapping, |
2029 | OpenGl_Vec3 theOrigins[4], |
2030 | OpenGl_Vec3 theDirects[4], |
2031 | OpenGl_Mat4& theInvModelProj) |
e276548b |
2032 | { |
bc8c79bb |
2033 | // compute inverse model-view-projection matrix |
a89742cf |
2034 | (theViewMapping * theOrientation).Inverted (theInvModelProj); |
fc73a202 |
2035 | |
68333c8f |
2036 | Standard_Integer aOriginIndex = 0; |
2037 | Standard_Integer aDirectIndex = 0; |
e276548b |
2038 | |
fc73a202 |
2039 | for (Standard_Integer aY = -1; aY <= 1; aY += 2) |
e276548b |
2040 | { |
fc73a202 |
2041 | for (Standard_Integer aX = -1; aX <= 1; aX += 2) |
e276548b |
2042 | { |
25ef750e |
2043 | OpenGl_Vec4 aOrigin (GLfloat(aX), |
2044 | GLfloat(aY), |
2045 | -1.0f, |
2046 | 1.0f); |
fc73a202 |
2047 | |
a89742cf |
2048 | aOrigin = theInvModelProj * aOrigin; |
e276548b |
2049 | |
b5ac8292 |
2050 | aOrigin.x() = aOrigin.x() / aOrigin.w(); |
2051 | aOrigin.y() = aOrigin.y() / aOrigin.w(); |
2052 | aOrigin.z() = aOrigin.z() / aOrigin.w(); |
e276548b |
2053 | |
25ef750e |
2054 | OpenGl_Vec4 aDirect (GLfloat(aX), |
2055 | GLfloat(aY), |
2056 | 1.0f, |
2057 | 1.0f); |
fc73a202 |
2058 | |
a89742cf |
2059 | aDirect = theInvModelProj * aDirect; |
e276548b |
2060 | |
b5ac8292 |
2061 | aDirect.x() = aDirect.x() / aDirect.w(); |
2062 | aDirect.y() = aDirect.y() / aDirect.w(); |
2063 | aDirect.z() = aDirect.z() / aDirect.w(); |
b5ac8292 |
2064 | |
2065 | aDirect = aDirect - aOrigin; |
e276548b |
2066 | |
fc73a202 |
2067 | GLdouble aInvLen = 1.0 / sqrt (aDirect.x() * aDirect.x() + |
e276548b |
2068 | aDirect.y() * aDirect.y() + |
2069 | aDirect.z() * aDirect.z()); |
2070 | |
fc73a202 |
2071 | theOrigins[aOriginIndex++] = OpenGl_Vec3 (static_cast<GLfloat> (aOrigin.x()), |
2072 | static_cast<GLfloat> (aOrigin.y()), |
2073 | static_cast<GLfloat> (aOrigin.z())); |
2074 | |
2075 | theDirects[aDirectIndex++] = OpenGl_Vec3 (static_cast<GLfloat> (aDirect.x() * aInvLen), |
2076 | static_cast<GLfloat> (aDirect.y() * aInvLen), |
2077 | static_cast<GLfloat> (aDirect.z() * aInvLen)); |
2078 | } |
2079 | } |
2080 | } |
2081 | |
25ef750e |
2082 | // ======================================================================= |
2083 | // function : SetUniformState |
2084 | // purpose : Sets uniform state for the given ray-tracing shader program |
2085 | // ======================================================================= |
2086 | Standard_Boolean OpenGl_Workspace::SetUniformState (const Graphic3d_CView& theCView, |
2087 | const OpenGl_Vec3* theOrigins, |
2088 | const OpenGl_Vec3* theDirects, |
2089 | const OpenGl_Mat4& theUnviewMat, |
2090 | const Standard_Integer theProgramIndex, |
2091 | Handle(OpenGl_ShaderProgram)& theRaytraceProgram) |
2092 | { |
2093 | if (theRaytraceProgram.IsNull()) |
2094 | { |
2095 | return Standard_False; |
2096 | } |
2097 | |
2098 | Standard_Integer aLightSourceBufferSize = |
2099 | static_cast<Standard_Integer> (myRaytraceGeometry.Sources.size()); |
2100 | |
2101 | Standard_Boolean aResult = Standard_True; |
2102 | |
2103 | // Set camera state |
2104 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2105 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginLB], theOrigins[0]); |
2106 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2107 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginRB], theOrigins[1]); |
2108 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2109 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginLT], theOrigins[2]); |
2110 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2111 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginRT], theOrigins[3]); |
2112 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2113 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectLB], theDirects[0]); |
2114 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2115 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectRB], theDirects[1]); |
2116 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2117 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectLT], theDirects[2]); |
2118 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2119 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectRT], theDirects[3]); |
2120 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2121 | myUniformLocations[theProgramIndex][OpenGl_RT_uUnviewMat], theUnviewMat); |
2122 | |
2123 | // Set scene parameters |
2124 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2125 | myUniformLocations[theProgramIndex][OpenGl_RT_uSceneRad], myRaytraceSceneRadius); |
2126 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2127 | myUniformLocations[theProgramIndex][OpenGl_RT_uSceneEps], myRaytraceSceneEpsilon); |
2128 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2129 | myUniformLocations[theProgramIndex][OpenGl_RT_uLightCount], aLightSourceBufferSize); |
2130 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2131 | myUniformLocations[theProgramIndex][OpenGl_RT_uLightAmbnt], myRaytraceGeometry.Ambient); |
2132 | |
2133 | // Set rendering options |
2134 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2135 | myUniformLocations[theProgramIndex][OpenGl_RT_uShadEnabled], theCView.RenderParams.IsShadowEnabled ? 1 : 0); |
2136 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2137 | myUniformLocations[theProgramIndex][OpenGl_RT_uReflEnabled], theCView.RenderParams.IsReflectionEnabled ? 1 : 0); |
2138 | |
2139 | // Set array of 64-bit texture handles |
2140 | if (myGlContext->arbTexBindless != NULL && myRaytraceGeometry.HasTextures()) |
2141 | { |
2142 | aResult &= theRaytraceProgram->SetUniform (myGlContext, "uTextureSamplers", |
2143 | static_cast<GLsizei> (myRaytraceGeometry.TextureHandles().size()), &myRaytraceGeometry.TextureHandles()[0]); |
2144 | } |
2145 | |
2146 | if (!aResult) |
2147 | { |
2148 | #ifdef RAY_TRACE_PRINT_INFO |
2149 | std::cout << "Error: Failed to set uniform state for ray-tracing program" << theProgramIndex << std::endl; |
2150 | #endif |
2151 | } |
2152 | |
2153 | return aResult; |
2154 | } |
2155 | |
fc73a202 |
2156 | // ======================================================================= |
2157 | // function : RunRaytraceShaders |
2158 | // purpose : Runs ray-tracing shader programs |
2159 | // ======================================================================= |
2160 | Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& theCView, |
2161 | const Standard_Integer theSizeX, |
2162 | const Standard_Integer theSizeY, |
2163 | const OpenGl_Vec3 theOrigins[4], |
2164 | const OpenGl_Vec3 theDirects[4], |
25ef750e |
2165 | const OpenGl_Mat4& theUnviewMat, |
fc73a202 |
2166 | OpenGl_FrameBuffer* theFrameBuffer) |
2167 | { |
2168 | mySceneMinPointTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMinPointTexture); |
2169 | mySceneMaxPointTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMaxPointTexture); |
2170 | mySceneNodeInfoTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneNodeInfoTexture); |
2171 | myObjectMinPointTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectMinPointTexture); |
2172 | myObjectMaxPointTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectMaxPointTexture); |
2173 | myObjectNodeInfoTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectNodeInfoTexture); |
2174 | myGeometryVertexTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryVertexTexture); |
2175 | myGeometryNormalTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryNormalTexture); |
25ef750e |
2176 | myGeometryTexCrdTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTexCrdTexture); |
fc73a202 |
2177 | myGeometryTriangTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTriangTexture); |
a89742cf |
2178 | mySceneTransformTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneTransformTexture); |
fc73a202 |
2179 | myRaytraceMaterialTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceMaterialTexture); |
2180 | myRaytraceLightSrcTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceLightSrcTexture); |
a89742cf |
2181 | |
2182 | myOpenGlFBO->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); |
2183 | myOpenGlFBO->DepthStencilTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); |
fc73a202 |
2184 | |
bc8c79bb |
2185 | if (theCView.RenderParams.IsAntialiasingEnabled) // render source image to FBO |
fc73a202 |
2186 | { |
2187 | myRaytraceFBO1->BindBuffer (myGlContext); |
2188 | |
2189 | glDisable (GL_BLEND); |
2190 | } |
2191 | |
7d3e64ef |
2192 | myGlContext->BindProgram (myRaytraceProgram); |
fc73a202 |
2193 | |
25ef750e |
2194 | SetUniformState (theCView, |
2195 | theOrigins, |
2196 | theDirects, |
2197 | theUnviewMat, |
2198 | 0, // ID of RT program |
2199 | myRaytraceProgram); |
fc73a202 |
2200 | |
7d3e64ef |
2201 | myGlContext->core20fwd->glEnableVertexAttribArray (Graphic3d_TOA_POS); |
fc73a202 |
2202 | { |
7d3e64ef |
2203 | myGlContext->core20fwd->glVertexAttribPointer (Graphic3d_TOA_POS, 3, GL_FLOAT, GL_FALSE, 0, NULL); |
fc73a202 |
2204 | myGlContext->core15fwd->glDrawArrays (GL_TRIANGLES, 0, 6); |
2205 | } |
7d3e64ef |
2206 | myGlContext->core20fwd->glDisableVertexAttribArray (Graphic3d_TOA_POS); |
25ef750e |
2207 | |
bc8c79bb |
2208 | if (!theCView.RenderParams.IsAntialiasingEnabled) |
fc73a202 |
2209 | { |
7d3e64ef |
2210 | myGlContext->BindProgram (NULL); |
fc73a202 |
2211 | |
a89742cf |
2212 | myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); |
2213 | myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); |
2214 | mySceneMinPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMinPointTexture); |
2215 | mySceneMaxPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMaxPointTexture); |
2216 | mySceneNodeInfoTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneNodeInfoTexture); |
2217 | myObjectMinPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectMinPointTexture); |
2218 | myObjectMaxPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectMaxPointTexture); |
2219 | myObjectNodeInfoTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectNodeInfoTexture); |
2220 | myGeometryVertexTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryVertexTexture); |
2221 | myGeometryNormalTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryNormalTexture); |
25ef750e |
2222 | myGeometryTexCrdTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTexCrdTexture); |
a89742cf |
2223 | myGeometryTriangTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTriangTexture); |
25ef750e |
2224 | mySceneTransformTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneTransformTexture); |
a89742cf |
2225 | myRaytraceMaterialTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceMaterialTexture); |
2226 | myRaytraceLightSrcTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceLightSrcTexture); |
a89742cf |
2227 | |
2228 | myGlContext->core15fwd->glActiveTexture (GL_TEXTURE0); |
2229 | |
fc73a202 |
2230 | return Standard_True; |
2231 | } |
2232 | |
945c3529 |
2233 | myRaytraceFBO1->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); |
fc73a202 |
2234 | |
7d3e64ef |
2235 | myGlContext->BindProgram (myPostFSAAProgram); |
fc73a202 |
2236 | |
25ef750e |
2237 | SetUniformState (theCView, |
2238 | theOrigins, |
2239 | theDirects, |
2240 | theUnviewMat, |
2241 | 1, // ID of FSAA program |
2242 | myPostFSAAProgram); |
fc73a202 |
2243 | |
2244 | const Standard_ShortReal aMaxOffset = 0.559017f; |
2245 | const Standard_ShortReal aMinOffset = 0.186339f; |
2246 | |
7d3e64ef |
2247 | myGlContext->core20fwd->glEnableVertexAttribArray (Graphic3d_TOA_POS); |
2248 | myGlContext->core20fwd->glVertexAttribPointer (Graphic3d_TOA_POS, 3, GL_FLOAT, GL_FALSE, 0, NULL); |
fc73a202 |
2249 | |
2250 | // Perform multi-pass adaptive FSAA using ping-pong technique |
84c71f29 |
2251 | // rotated grid AA always uses 4 samples |
fc73a202 |
2252 | for (Standard_Integer anIt = 0; anIt < 4; ++anIt) |
2253 | { |
2254 | GLfloat aOffsetX = 1.f / theSizeX; |
2255 | GLfloat aOffsetY = 1.f / theSizeY; |
2256 | |
2257 | if (anIt < 2) |
2258 | { |
2259 | aOffsetX *= anIt < 1 ? aMinOffset : -aMaxOffset; |
2260 | aOffsetY *= anIt < 1 ? aMaxOffset : aMinOffset; |
2261 | } |
2262 | else |
2263 | { |
2264 | aOffsetX *= anIt > 2 ? aMaxOffset : -aMinOffset; |
2265 | aOffsetY *= anIt > 2 ? -aMinOffset : -aMaxOffset; |
2266 | } |
2267 | |
2268 | myPostFSAAProgram->SetUniform (myGlContext, |
2269 | myUniformLocations[1][OpenGl_RT_uSamples], anIt + 2); |
2270 | myPostFSAAProgram->SetUniform (myGlContext, |
2271 | myUniformLocations[1][OpenGl_RT_uOffsetX], aOffsetX); |
2272 | myPostFSAAProgram->SetUniform (myGlContext, |
2273 | myUniformLocations[1][OpenGl_RT_uOffsetY], aOffsetY); |
2274 | |
2275 | Handle(OpenGl_FrameBuffer)& aFramebuffer = anIt % 2 ? myRaytraceFBO1 : myRaytraceFBO2; |
2276 | |
2277 | if (anIt == 3) // disable FBO on last iteration |
2278 | { |
2279 | glEnable (GL_BLEND); |
2280 | |
2281 | if (theFrameBuffer != NULL) |
2282 | theFrameBuffer->BindBuffer (myGlContext); |
2283 | } |
2284 | else |
2285 | { |
2286 | aFramebuffer->BindBuffer (myGlContext); |
2287 | } |
2288 | |
2289 | myGlContext->core15fwd->glDrawArrays (GL_TRIANGLES, 0, 6); |
e276548b |
2290 | |
fc73a202 |
2291 | if (anIt != 3) // set input for the next pass |
2292 | { |
945c3529 |
2293 | aFramebuffer->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); |
fc73a202 |
2294 | aFramebuffer->UnbindBuffer (myGlContext); |
e276548b |
2295 | } |
2296 | } |
fc73a202 |
2297 | |
7d3e64ef |
2298 | myGlContext->core20fwd->glDisableVertexAttribArray (Graphic3d_TOA_POS); |
fc73a202 |
2299 | |
7d3e64ef |
2300 | myGlContext->BindProgram (NULL); |
a89742cf |
2301 | myRaytraceFBO1->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); |
2302 | myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); |
2303 | myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); |
2304 | mySceneMinPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMinPointTexture); |
2305 | mySceneMaxPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMaxPointTexture); |
2306 | mySceneNodeInfoTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneNodeInfoTexture); |
2307 | myObjectMinPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectMinPointTexture); |
2308 | myObjectMaxPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectMaxPointTexture); |
2309 | myObjectNodeInfoTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_ObjectNodeInfoTexture); |
2310 | myGeometryVertexTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryVertexTexture); |
2311 | myGeometryNormalTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryNormalTexture); |
25ef750e |
2312 | myGeometryTexCrdTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTexCrdTexture); |
a89742cf |
2313 | myGeometryTriangTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTriangTexture); |
25ef750e |
2314 | mySceneTransformTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneTransformTexture); |
a89742cf |
2315 | myRaytraceMaterialTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceMaterialTexture); |
2316 | myRaytraceLightSrcTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceLightSrcTexture); |
a89742cf |
2317 | |
2318 | myGlContext->core15fwd->glActiveTexture (GL_TEXTURE0); |
fc73a202 |
2319 | |
2320 | return Standard_True; |
e276548b |
2321 | } |
2322 | |
2323 | // ======================================================================= |
2324 | // function : Raytrace |
fc73a202 |
2325 | // purpose : Redraws the window using OpenGL/GLSL ray-tracing |
e276548b |
2326 | // ======================================================================= |
2327 | Standard_Boolean OpenGl_Workspace::Raytrace (const Graphic3d_CView& theCView, |
68333c8f |
2328 | const Standard_Integer theSizeX, |
2329 | const Standard_Integer theSizeY, |
fc73a202 |
2330 | const Standard_Boolean theToSwap, |
a89742cf |
2331 | const Aspect_CLayer2d& theCOverLayer, |
2332 | const Aspect_CLayer2d& theCUnderLayer, |
fc73a202 |
2333 | OpenGl_FrameBuffer* theFrameBuffer) |
e276548b |
2334 | { |
bc8c79bb |
2335 | if (!InitRaytraceResources (theCView)) |
e276548b |
2336 | return Standard_False; |
2337 | |
fc73a202 |
2338 | if (!ResizeRaytraceBuffers (theSizeX, theSizeY)) |
e276548b |
2339 | return Standard_False; |
2340 | |
fc73a202 |
2341 | if (!UpdateRaytraceEnvironmentMap()) |
e276548b |
2342 | return Standard_False; |
2343 | |
2344 | // Get model-view and projection matrices |
25ef750e |
2345 | OpenGl_Mat4 aOrientationMatrix; |
2346 | OpenGl_Mat4 aViewMappingMatrix; |
e276548b |
2347 | |
25ef750e |
2348 | myView->GetMatrices (aOrientationMatrix, |
2349 | aViewMappingMatrix); |
e276548b |
2350 | |
25ef750e |
2351 | OpenGl_Mat4 aInvOrientationMatrix; |
fc73a202 |
2352 | aOrientationMatrix.Inverted (aInvOrientationMatrix); |
e276548b |
2353 | |
fc73a202 |
2354 | if (!UpdateRaytraceLightSources (aInvOrientationMatrix)) |
e276548b |
2355 | return Standard_False; |
2356 | |
fc73a202 |
2357 | OpenGl_Vec3 aOrigins[4]; |
2358 | OpenGl_Vec3 aDirects[4]; |
25ef750e |
2359 | OpenGl_Mat4 anUnviewMat; |
e276548b |
2360 | |
fc73a202 |
2361 | UpdateCamera (aOrientationMatrix, |
2362 | aViewMappingMatrix, |
2363 | aOrigins, |
a89742cf |
2364 | aDirects, |
25ef750e |
2365 | anUnviewMat); |
e276548b |
2366 | |
84c71f29 |
2367 | Standard_Boolean wasBlendingEnabled = glIsEnabled (GL_BLEND); |
2368 | Standard_Boolean wasDepthTestEnabled = glIsEnabled (GL_DEPTH_TEST); |
e276548b |
2369 | |
2370 | glDisable (GL_DEPTH_TEST); |
2371 | |
a89742cf |
2372 | if (theFrameBuffer != NULL) |
2373 | { |
2374 | theFrameBuffer->BindBuffer (myGlContext); |
2375 | } |
2376 | |
e276548b |
2377 | if (NamedStatus & OPENGL_NS_WHITEBACK) |
2378 | { |
2379 | glClearColor (1.0f, 1.0f, 1.0f, 1.0f); |
2380 | } |
2381 | else |
2382 | { |
2383 | glClearColor (myBgColor.rgb[0], |
2384 | myBgColor.rgb[1], |
2385 | myBgColor.rgb[2], |
2386 | 1.0f); |
2387 | } |
2388 | |
2389 | glClear (GL_COLOR_BUFFER_BIT); |
2390 | |
fc73a202 |
2391 | myView->DrawBackground (*this); |
e276548b |
2392 | |
a89742cf |
2393 | myView->RedrawLayer2d (myPrintContext, theCView, theCUnderLayer); |
2394 | |
ca3c13d1 |
2395 | #if !defined(GL_ES_VERSION_2_0) |
fc73a202 |
2396 | // Generate ray-traced image |
e276548b |
2397 | glMatrixMode (GL_PROJECTION); |
a89742cf |
2398 | glPushMatrix(); |
e276548b |
2399 | glLoadIdentity(); |
2400 | |
2401 | glMatrixMode (GL_MODELVIEW); |
a89742cf |
2402 | glPushMatrix(); |
e276548b |
2403 | glLoadIdentity(); |
ca3c13d1 |
2404 | #endif |
e276548b |
2405 | |
fc73a202 |
2406 | glEnable (GL_BLEND); |
2407 | glBlendFunc (GL_ONE, GL_SRC_ALPHA); |
e276548b |
2408 | |
2409 | if (myIsRaytraceDataValid) |
2410 | { |
fc73a202 |
2411 | myRaytraceScreenQuad.Bind (myGlContext); |
2412 | |
25ef750e |
2413 | if (!myRaytraceGeometry.AcquireTextures (myGlContext)) |
2414 | { |
2415 | const TCollection_ExtendedString aMessage = "Error: Failed to acquire OpenGL image textures"; |
2416 | |
2417 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
2418 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_MEDIUM_ARB, aMessage); |
2419 | } |
2420 | |
fc73a202 |
2421 | RunRaytraceShaders (theCView, |
2422 | theSizeX, |
2423 | theSizeY, |
2424 | aOrigins, |
2425 | aDirects, |
25ef750e |
2426 | anUnviewMat, |
fc73a202 |
2427 | theFrameBuffer); |
2428 | |
25ef750e |
2429 | if (!myRaytraceGeometry.ReleaseTextures (myGlContext)) |
2430 | { |
2431 | const TCollection_ExtendedString aMessage = "Error: Failed to release OpenGL image textures"; |
2432 | |
2433 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
2434 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_MEDIUM_ARB, aMessage); |
2435 | } |
2436 | |
fc73a202 |
2437 | myRaytraceScreenQuad.Unbind (myGlContext); |
e276548b |
2438 | } |
2439 | |
84c71f29 |
2440 | if (!wasBlendingEnabled) |
2441 | glDisable (GL_BLEND); |
fc73a202 |
2442 | |
84c71f29 |
2443 | if (wasDepthTestEnabled) |
2444 | glEnable (GL_DEPTH_TEST); |
e276548b |
2445 | |
ca3c13d1 |
2446 | #if !defined(GL_ES_VERSION_2_0) |
a89742cf |
2447 | glMatrixMode (GL_PROJECTION); |
2448 | glPopMatrix(); |
2449 | glMatrixMode (GL_MODELVIEW); |
2450 | glPopMatrix(); |
ca3c13d1 |
2451 | #endif |
a89742cf |
2452 | |
2453 | // Redraw trihedron |
2454 | myView->RedrawTrihedron (this); |
2455 | |
2456 | // Redraw overlay |
2457 | const int aMode = 0; |
2458 | DisplayCallback (theCView, (aMode | OCC_PRE_OVERLAY)); |
2459 | myView->RedrawLayer2d (myPrintContext, theCView, theCOverLayer); |
2460 | DisplayCallback (theCView, aMode); |
2461 | |
e276548b |
2462 | // Swap the buffers |
2463 | if (theToSwap) |
2464 | { |
2465 | GetGlContext()->SwapBuffers(); |
2466 | myBackBufferRestored = Standard_False; |
2467 | } |
2468 | else |
fc73a202 |
2469 | { |
e276548b |
2470 | glFlush(); |
fc73a202 |
2471 | } |
e276548b |
2472 | |
2473 | return Standard_True; |
2474 | } |
a89742cf |
2475 | |
2476 | IMPLEMENT_STANDARD_HANDLE(OpenGl_RaytraceFilter, OpenGl_RenderFilter) |
2477 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_RaytraceFilter, OpenGl_RenderFilter) |
2478 | |
2479 | // ======================================================================= |
2480 | // function : CanRender |
2481 | // purpose : |
2482 | // ======================================================================= |
2483 | Standard_Boolean OpenGl_RaytraceFilter::CanRender (const OpenGl_Element* theElement) |
2484 | { |
2485 | Standard_Boolean aPrevFilterResult = Standard_True; |
2486 | if (!myPrevRenderFilter.IsNull()) |
2487 | { |
2488 | aPrevFilterResult = myPrevRenderFilter->CanRender(theElement); |
2489 | } |
2490 | return aPrevFilterResult && |
2491 | !OpenGl_Raytrace::IsRaytracedElement (theElement); |
2492 | } |