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 | { |
a1954302 |
74 | const OpenGl_Layer& aLayer = anLayerIt.Value(); |
75 | if (aLayer.NbStructures() == 0) |
e276548b |
76 | continue; |
77 | |
a1954302 |
78 | const OpenGl_ArrayOfStructure& aStructArray = aLayer.ArrayOfStructures(); |
68333c8f |
79 | for (Standard_Integer anIndex = 0; anIndex < aStructArray.Length(); ++anIndex) |
e276548b |
80 | { |
a1954302 |
81 | for (OpenGl_SequenceOfStructure::Iterator aStructIt (aStructArray (anIndex)); aStructIt.More(); aStructIt.Next()) |
e276548b |
82 | { |
83 | const OpenGl_Structure* aStructure = aStructIt.Value(); |
84 | |
84c71f29 |
85 | if (theMode == OpenGl_GUM_CHECK) |
e276548b |
86 | { |
87 | if (CheckRaytraceStructure (aStructure)) |
88 | { |
84c71f29 |
89 | return UpdateRaytraceGeometry (OpenGl_GUM_PREPARE); |
e276548b |
90 | } |
e2da917a |
91 | } |
84c71f29 |
92 | else if (theMode == OpenGl_GUM_PREPARE) |
93 | { |
94 | if (!aStructure->IsRaytracable() |
95 | || !aStructure->IsVisible()) |
a1954302 |
96 | { |
a272ed94 |
97 | continue; |
98 | } |
99 | else if (!aStructure->ViewAffinity.IsNull() |
100 | && !aStructure->ViewAffinity->IsVisible (myViewId)) |
101 | { |
84c71f29 |
102 | continue; |
a1954302 |
103 | } |
84c71f29 |
104 | |
105 | for (OpenGl_Structure::GroupIterator aGroupIter (aStructure->DrawGroups()); aGroupIter.More(); aGroupIter.Next()) |
106 | { |
107 | // OpenGL elements from group (extract primitives arrays) |
108 | for (const OpenGl_ElementNode* aNode = aGroupIter.Value()->FirstNode(); aNode != NULL; aNode = aNode->next) |
109 | { |
110 | OpenGl_PrimitiveArray* aPrimArray = dynamic_cast<OpenGl_PrimitiveArray*> (aNode->elem); |
111 | |
112 | if (aPrimArray != NULL) |
113 | { |
114 | // Collect all primitive arrays in scene. |
8d3f219f |
115 | anArrayIDs.insert (aPrimArray->GetUID()); |
84c71f29 |
116 | } |
117 | } |
118 | } |
e2da917a |
119 | } |
84c71f29 |
120 | else if (theMode == OpenGl_GUM_UPDATE) |
e276548b |
121 | { |
122 | if (!aStructure->IsRaytracable()) |
123 | continue; |
124 | |
0717ddc1 |
125 | AddRaytraceStructure (aStructure, anElements); |
e276548b |
126 | } |
127 | } |
128 | } |
129 | } |
130 | |
84c71f29 |
131 | if (theMode == OpenGl_GUM_PREPARE) |
132 | { |
25ef750e |
133 | BVH_ObjectSet<Standard_ShortReal, 3>::BVH_ObjectList anUnchangedObjects; |
84c71f29 |
134 | |
135 | // Leave only unchanged objects in myRaytraceGeometry so only their transforms and materials will be updated |
136 | // Objects which not in myArrayToTrianglesMap will be built from scratch. |
137 | for (Standard_Integer anObjectIdx = 0; anObjectIdx < myRaytraceGeometry.Objects().Size(); ++anObjectIdx) |
138 | { |
139 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
140 | myRaytraceGeometry.Objects().ChangeValue (anObjectIdx).operator->()); |
141 | |
142 | // If primitive array of object not in "anArrays" set then it was hided or deleted. |
143 | // If primitive array present in "anArrays" set but we don't have associated object yet, then |
144 | // the object is new and still has to be built. |
8d3f219f |
145 | if ((aTriangleSet != NULL) && ((anArrayIDs.find (aTriangleSet->AssociatedPArrayID())) != anArrayIDs.end())) |
84c71f29 |
146 | { |
147 | anUnchangedObjects.Append (myRaytraceGeometry.Objects().Value (anObjectIdx)); |
148 | |
8d3f219f |
149 | myArrayToTrianglesMap[aTriangleSet->AssociatedPArrayID()] = aTriangleSet; |
84c71f29 |
150 | } |
151 | } |
152 | |
153 | myRaytraceGeometry.Objects() = anUnchangedObjects; |
154 | |
155 | return UpdateRaytraceGeometry (OpenGl_GUM_UPDATE); |
156 | } |
157 | |
158 | if (theMode == OpenGl_GUM_UPDATE) |
e276548b |
159 | { |
160 | // Actualize the hash map of structures -- remove out-of-date records |
161 | std::map<const OpenGl_Structure*, Standard_Size>::iterator anIter = myStructureStates.begin(); |
162 | |
163 | while (anIter != myStructureStates.end()) |
164 | { |
165 | if (anElements.find (anIter->first) == anElements.end()) |
166 | { |
167 | myStructureStates.erase (anIter++); |
168 | } |
169 | else |
170 | { |
171 | ++anIter; |
172 | } |
173 | } |
174 | |
175 | // Actualize OpenGL layer list state |
176 | myLayersModificationStatus = myView->LayerList().ModificationState(); |
177 | |
265d4508 |
178 | // Rebuild bottom-level and high-level BVHs |
179 | myRaytraceGeometry.ProcessAcceleration(); |
e276548b |
180 | |
265d4508 |
181 | const Standard_ShortReal aMinRadius = Max (fabs (myRaytraceGeometry.Box().CornerMin().x()), Max ( |
182 | fabs (myRaytraceGeometry.Box().CornerMin().y()), fabs (myRaytraceGeometry.Box().CornerMin().z()))); |
183 | const Standard_ShortReal aMaxRadius = Max (fabs (myRaytraceGeometry.Box().CornerMax().x()), Max ( |
184 | fabs (myRaytraceGeometry.Box().CornerMax().y()), fabs (myRaytraceGeometry.Box().CornerMax().z()))); |
e276548b |
185 | |
265d4508 |
186 | myRaytraceSceneRadius = 2.f /* scale factor */ * Max (aMinRadius, aMaxRadius); |
e276548b |
187 | |
25ef750e |
188 | const BVH_Vec3f aSize = myRaytraceGeometry.Box().Size(); |
e276548b |
189 | |
a89742cf |
190 | myRaytraceSceneEpsilon = Max (1e-6f, 1e-4f * sqrtf ( |
fc73a202 |
191 | aSize.x() * aSize.x() + aSize.y() * aSize.y() + aSize.z() * aSize.z())); |
192 | |
193 | return UploadRaytraceData(); |
e276548b |
194 | } |
195 | |
e276548b |
196 | return Standard_True; |
197 | } |
198 | |
199 | // ======================================================================= |
200 | // function : CheckRaytraceStructure |
e2da917a |
201 | // purpose : Checks to see if the structure is modified |
e276548b |
202 | // ======================================================================= |
203 | Standard_Boolean OpenGl_Workspace::CheckRaytraceStructure (const OpenGl_Structure* theStructure) |
204 | { |
205 | if (!theStructure->IsRaytracable()) |
206 | { |
207 | // Checks to see if all ray-tracable elements were |
208 | // removed from the structure |
209 | if (theStructure->ModificationState() > 0) |
210 | { |
211 | theStructure->ResetModificationState(); |
212 | return Standard_True; |
213 | } |
214 | |
215 | return Standard_False; |
216 | } |
217 | |
218 | std::map<const OpenGl_Structure*, Standard_Size>::iterator aStructState = myStructureStates.find (theStructure); |
219 | |
220 | if (aStructState != myStructureStates.end()) |
221 | return aStructState->second != theStructure->ModificationState(); |
222 | |
223 | return Standard_True; |
224 | } |
225 | |
25ef750e |
226 | // ======================================================================= |
227 | // function : BuildTexTransform |
228 | // purpose : Constructs texture transformation matrix |
229 | // ======================================================================= |
230 | void BuildTexTransform (const Handle(Graphic3d_TextureParams)& theParams, BVH_Mat4f& theMatrix) |
231 | { |
232 | theMatrix.InitIdentity(); |
233 | |
234 | // Apply scaling |
235 | const Graphic3d_Vec2& aScale = theParams->Scale(); |
236 | |
237 | theMatrix.ChangeValue (0, 0) *= aScale.x(); |
238 | theMatrix.ChangeValue (1, 0) *= aScale.x(); |
239 | theMatrix.ChangeValue (2, 0) *= aScale.x(); |
240 | theMatrix.ChangeValue (3, 0) *= aScale.x(); |
241 | |
242 | theMatrix.ChangeValue (0, 1) *= aScale.y(); |
243 | theMatrix.ChangeValue (1, 1) *= aScale.y(); |
244 | theMatrix.ChangeValue (2, 1) *= aScale.y(); |
245 | theMatrix.ChangeValue (3, 1) *= aScale.y(); |
246 | |
247 | // Apply translation |
248 | const Graphic3d_Vec2 aTrans = -theParams->Translation(); |
249 | |
250 | theMatrix.ChangeValue (0, 3) = theMatrix.GetValue (0, 0) * aTrans.x() + |
251 | theMatrix.GetValue (0, 1) * aTrans.y(); |
252 | |
253 | theMatrix.ChangeValue (1, 3) = theMatrix.GetValue (1, 0) * aTrans.x() + |
254 | theMatrix.GetValue (1, 1) * aTrans.y(); |
255 | |
256 | theMatrix.ChangeValue (2, 3) = theMatrix.GetValue (2, 0) * aTrans.x() + |
257 | theMatrix.GetValue (2, 1) * aTrans.y(); |
258 | |
259 | // Apply rotation |
260 | const Standard_ShortReal aSin = std::sin ( |
261 | -theParams->Rotation() * static_cast<Standard_ShortReal> (M_PI / 180.0)); |
262 | const Standard_ShortReal aCos = std::cos ( |
263 | -theParams->Rotation() * static_cast<Standard_ShortReal> (M_PI / 180.0)); |
264 | |
265 | BVH_Mat4f aRotationMat; |
266 | aRotationMat.SetValue (0, 0, aCos); |
267 | aRotationMat.SetValue (1, 1, aCos); |
268 | aRotationMat.SetValue (0, 1, -aSin); |
269 | aRotationMat.SetValue (1, 0, aSin); |
270 | |
271 | theMatrix = theMatrix * aRotationMat; |
272 | } |
273 | |
e276548b |
274 | // ======================================================================= |
275 | // function : CreateMaterial |
276 | // purpose : Creates ray-tracing material properties |
277 | // ======================================================================= |
25ef750e |
278 | Standard_Boolean OpenGl_Workspace::CreateMaterial (const OpenGl_AspectFace* theAspect, OpenGl_RaytraceMaterial& theMaterial) |
e276548b |
279 | { |
25ef750e |
280 | const OPENGL_SURF_PROP& aProperties = theAspect->IntFront(); |
281 | |
282 | const Standard_ShortReal* aSrcAmbient = |
283 | aProperties.isphysic ? aProperties.ambcol.rgb : aProperties.matcol.rgb; |
284 | |
285 | theMaterial.Ambient = BVH_Vec4f (aSrcAmbient[0] * aProperties.amb, |
286 | aSrcAmbient[1] * aProperties.amb, |
287 | aSrcAmbient[2] * aProperties.amb, |
288 | 1.f); |
289 | |
290 | const Standard_ShortReal* aSrcDiffuse = |
291 | aProperties.isphysic ? aProperties.difcol.rgb : aProperties.matcol.rgb; |
292 | |
293 | theMaterial.Diffuse = BVH_Vec4f (aSrcDiffuse[0] * aProperties.diff, |
294 | aSrcDiffuse[1] * aProperties.diff, |
295 | aSrcDiffuse[2] * aProperties.diff, |
296 | -1.f /* no texture */); |
297 | |
298 | theMaterial.Specular = BVH_Vec4f ( |
299 | (aProperties.isphysic ? aProperties.speccol.rgb[0] : 1.f) * aProperties.spec, |
300 | (aProperties.isphysic ? aProperties.speccol.rgb[1] : 1.f) * aProperties.spec, |
301 | (aProperties.isphysic ? aProperties.speccol.rgb[2] : 1.f) * aProperties.spec, |
302 | aProperties.shine); |
303 | |
304 | const Standard_ShortReal* aSrcEmission = |
305 | aProperties.isphysic ? aProperties.emscol.rgb : aProperties.matcol.rgb; |
306 | |
307 | theMaterial.Emission = BVH_Vec4f (aSrcEmission[0] * aProperties.emsv, |
308 | aSrcEmission[1] * aProperties.emsv, |
309 | aSrcEmission[2] * aProperties.emsv, |
310 | 1.f); |
e276548b |
311 | |
312 | // Note: Here we use sub-linear transparency function |
313 | // to produce realistic-looking transparency effect |
25ef750e |
314 | theMaterial.Transparency = BVH_Vec4f (powf (aProperties.trans, 0.75f), |
315 | 1.f - aProperties.trans, |
316 | aProperties.index == 0 ? 1.f : aProperties.index, |
317 | aProperties.index == 0 ? 1.f : 1.f / aProperties.index); |
e276548b |
318 | |
25ef750e |
319 | const Standard_ShortReal aMaxRefl = Max (theMaterial.Diffuse.x() + theMaterial.Specular.x(), |
320 | Max (theMaterial.Diffuse.y() + theMaterial.Specular.y(), |
321 | theMaterial.Diffuse.z() + theMaterial.Specular.z())); |
e276548b |
322 | |
25ef750e |
323 | const Standard_ShortReal aReflectionScale = 0.75f / aMaxRefl; |
324 | |
325 | theMaterial.Reflection = BVH_Vec4f ( |
326 | aProperties.speccol.rgb[0] * aProperties.spec * aReflectionScale, |
327 | aProperties.speccol.rgb[1] * aProperties.spec * aReflectionScale, |
328 | aProperties.speccol.rgb[2] * aProperties.spec * aReflectionScale, |
329 | 0.f); |
330 | |
331 | if (theAspect->DoTextureMap()) |
332 | { |
333 | if (myGlContext->arbTexBindless != NULL) |
334 | { |
335 | BuildTexTransform (theAspect->TextureParams(), theMaterial.TextureTransform); |
336 | theMaterial.Diffuse.w() = static_cast<Standard_ShortReal> ( |
337 | myRaytraceGeometry.AddTexture (theAspect->TextureRes (myGlContext))); |
338 | } |
339 | else if (!myIsRaytraceWarnTextures) |
340 | { |
341 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
342 | GL_DEBUG_TYPE_PORTABILITY_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
343 | "Warning: texturing in Ray-Trace requires GL_ARB_bindless_texture extension which is missing. " |
344 | "Textures will be ignored."); |
345 | myIsRaytraceWarnTextures = Standard_True; |
346 | } |
347 | } |
e276548b |
348 | |
25ef750e |
349 | return Standard_True; |
e276548b |
350 | } |
351 | |
352 | // ======================================================================= |
353 | // function : AddRaytraceStructure |
354 | // purpose : Adds OpenGL structure to ray-traced scene geometry |
355 | // ======================================================================= |
0717ddc1 |
356 | Standard_Boolean OpenGl_Workspace::AddRaytraceStructure (const OpenGl_Structure* theStructure, std::set<const OpenGl_Structure*>& theElements) |
e276548b |
357 | { |
e276548b |
358 | theElements.insert (theStructure); |
359 | |
360 | if (!theStructure->IsVisible()) |
361 | { |
362 | myStructureStates[theStructure] = theStructure->ModificationState(); |
363 | return Standard_True; |
364 | } |
365 | |
366 | // Get structure material |
68333c8f |
367 | Standard_Integer aStructMatID = -1; |
e276548b |
368 | |
369 | if (theStructure->AspectFace() != NULL) |
370 | { |
265d4508 |
371 | aStructMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
372 | |
373 | OpenGl_RaytraceMaterial aStructMaterial; |
25ef750e |
374 | CreateMaterial (theStructure->AspectFace(), aStructMaterial); |
e276548b |
375 | |
265d4508 |
376 | myRaytraceGeometry.Materials.push_back (aStructMaterial); |
e276548b |
377 | } |
378 | |
0717ddc1 |
379 | Standard_ShortReal aStructTransformArr[16]; |
380 | Standard_ShortReal* aStructTransform = NULL; |
381 | if (theStructure->Transformation()->mat != NULL) |
382 | { |
383 | aStructTransform = aStructTransformArr; |
384 | for (Standard_Integer i = 0; i < 4; ++i) |
385 | { |
386 | for (Standard_Integer j = 0; j < 4; ++j) |
387 | { |
388 | aStructTransform[j * 4 + i] = theStructure->Transformation()->mat[i][j]; |
389 | } |
390 | } |
391 | } |
392 | |
393 | AddRaytraceGroups (theStructure, aStructMatID, aStructTransform); |
394 | |
395 | // Process all connected OpenGL structures |
396 | for (OpenGl_ListOfStructure::Iterator anIts (theStructure->ConnectedStructures()); anIts.More(); anIts.Next()) |
397 | { |
398 | if (anIts.Value()->IsRaytracable()) |
399 | AddRaytraceGroups (anIts.Value(), aStructMatID, aStructTransform); |
400 | } |
401 | |
402 | myStructureStates[theStructure] = theStructure->ModificationState(); |
403 | return Standard_True; |
404 | } |
405 | |
406 | // ======================================================================= |
407 | // function : AddRaytraceGroups |
408 | // purpose : Adds OpenGL groups to ray-traced scene geometry |
409 | // ======================================================================= |
410 | Standard_Boolean OpenGl_Workspace::AddRaytraceGroups (const OpenGl_Structure* theStructure, |
411 | const Standard_Integer theStructMatId, |
412 | const Standard_ShortReal* theTransform) |
413 | { |
b64d84be |
414 | for (OpenGl_Structure::GroupIterator aGroupIter (theStructure->DrawGroups()); aGroupIter.More(); aGroupIter.Next()) |
e276548b |
415 | { |
416 | // Get group material |
68333c8f |
417 | Standard_Integer aGroupMatID = -1; |
b64d84be |
418 | if (aGroupIter.Value()->AspectFace() != NULL) |
e276548b |
419 | { |
265d4508 |
420 | aGroupMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
421 | |
422 | OpenGl_RaytraceMaterial aGroupMaterial; |
25ef750e |
423 | CreateMaterial (aGroupIter.Value()->AspectFace(), aGroupMaterial); |
e276548b |
424 | |
265d4508 |
425 | myRaytraceGeometry.Materials.push_back (aGroupMaterial); |
e276548b |
426 | } |
427 | |
0717ddc1 |
428 | Standard_Integer aMatID = aGroupMatID < 0 ? theStructMatId : aGroupMatID; |
e276548b |
429 | |
265d4508 |
430 | if (aMatID < 0) |
e276548b |
431 | { |
265d4508 |
432 | aMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
433 | |
265d4508 |
434 | myRaytraceGeometry.Materials.push_back (OpenGl_RaytraceMaterial()); |
e276548b |
435 | } |
436 | |
265d4508 |
437 | // Add OpenGL elements from group (extract primitives arrays and aspects) |
b64d84be |
438 | for (const OpenGl_ElementNode* aNode = aGroupIter.Value()->FirstNode(); aNode != NULL; aNode = aNode->next) |
e276548b |
439 | { |
5322131b |
440 | OpenGl_AspectFace* anAspect = dynamic_cast<OpenGl_AspectFace*> (aNode->elem); |
441 | if (anAspect != NULL) |
e276548b |
442 | { |
5322131b |
443 | aMatID = static_cast<Standard_Integer> (myRaytraceGeometry.Materials.size()); |
e276548b |
444 | |
5322131b |
445 | OpenGl_RaytraceMaterial aMaterial; |
25ef750e |
446 | CreateMaterial (anAspect, aMaterial); |
e276548b |
447 | |
5322131b |
448 | myRaytraceGeometry.Materials.push_back (aMaterial); |
e276548b |
449 | } |
5322131b |
450 | else |
e276548b |
451 | { |
452 | OpenGl_PrimitiveArray* aPrimArray = dynamic_cast<OpenGl_PrimitiveArray*> (aNode->elem); |
84c71f29 |
453 | |
e276548b |
454 | if (aPrimArray != NULL) |
455 | { |
8d3f219f |
456 | std::map<Standard_Size, OpenGl_TriangleSet*>::iterator aSetIter = myArrayToTrianglesMap.find (aPrimArray->GetUID()); |
457 | |
84c71f29 |
458 | if (aSetIter != myArrayToTrianglesMap.end()) |
459 | { |
460 | OpenGl_TriangleSet* aSet = aSetIter->second; |
25ef750e |
461 | |
84c71f29 |
462 | BVH_Transform<Standard_ShortReal, 4>* aTransform = new BVH_Transform<Standard_ShortReal, 4>(); |
463 | |
464 | if (theTransform != NULL) |
465 | { |
466 | aTransform->SetTransform (*(reinterpret_cast<const BVH_Mat4f*> (theTransform))); |
467 | } |
468 | |
469 | aSet->SetProperties (aTransform); |
470 | |
25ef750e |
471 | if (aSet->MaterialIndex() != OpenGl_TriangleSet::INVALID_MATERIAL && aSet->MaterialIndex() != aMatID) |
84c71f29 |
472 | { |
473 | aSet->SetMaterialIndex (aMatID); |
474 | } |
475 | } |
476 | else |
477 | { |
25ef750e |
478 | NCollection_Handle<BVH_Object<Standard_ShortReal, 3> > aSet = |
84c71f29 |
479 | AddRaytracePrimitiveArray (aPrimArray, aMatID, 0); |
265d4508 |
480 | |
84c71f29 |
481 | if (!aSet.IsNull()) |
482 | { |
483 | BVH_Transform<Standard_ShortReal, 4>* aTransform = new BVH_Transform<Standard_ShortReal, 4>; |
484 | |
485 | if (theTransform != NULL) |
486 | { |
487 | aTransform->SetTransform (*(reinterpret_cast<const BVH_Mat4f*> (theTransform))); |
488 | } |
489 | |
490 | aSet->SetProperties (aTransform); |
491 | |
492 | myRaytraceGeometry.Objects().Append (aSet); |
493 | } |
494 | } |
e276548b |
495 | } |
496 | } |
497 | } |
e276548b |
498 | } |
499 | |
e276548b |
500 | return Standard_True; |
501 | } |
502 | |
503 | // ======================================================================= |
504 | // function : AddRaytracePrimitiveArray |
505 | // purpose : Adds OpenGL primitive array to ray-traced scene geometry |
506 | // ======================================================================= |
871fa103 |
507 | OpenGl_TriangleSet* OpenGl_Workspace::AddRaytracePrimitiveArray (const OpenGl_PrimitiveArray* theArray, |
508 | Standard_Integer theMatID, |
25ef750e |
509 | const OpenGl_Mat4* theTransform) |
e276548b |
510 | { |
871fa103 |
511 | const Handle(Graphic3d_IndexBuffer)& anIndices = theArray->Indices(); |
512 | const Handle(Graphic3d_Buffer)& anAttribs = theArray->Attributes(); |
513 | const Handle(Graphic3d_BoundBuffer)& aBounds = theArray->Bounds(); |
514 | if (theArray->DrawMode() < GL_TRIANGLES |
ca3c13d1 |
515 | #if !defined(GL_ES_VERSION_2_0) |
871fa103 |
516 | || theArray->DrawMode() > GL_POLYGON |
ca3c13d1 |
517 | #else |
518 | || theArray->DrawMode() > GL_TRIANGLE_FAN |
519 | #endif |
871fa103 |
520 | || anAttribs.IsNull()) |
e276548b |
521 | { |
265d4508 |
522 | return NULL; |
e276548b |
523 | } |
524 | |
e276548b |
525 | #ifdef RAY_TRACE_PRINT_INFO |
bc8c79bb |
526 | switch (theArray->DrawMode()) |
e276548b |
527 | { |
871fa103 |
528 | case GL_TRIANGLES: std::cout << "\tAdding GL_TRIANGLES\n"; break; |
871fa103 |
529 | case GL_TRIANGLE_FAN: std::cout << "\tAdding GL_TRIANGLE_FAN\n"; break; |
530 | case GL_TRIANGLE_STRIP: std::cout << "\tAdding GL_TRIANGLE_STRIP\n"; break; |
ca3c13d1 |
531 | #if !defined(GL_ES_VERSION_2_0) |
532 | case GL_QUADS: std::cout << "\tAdding GL_QUADS\n"; break; |
871fa103 |
533 | case GL_QUAD_STRIP: std::cout << "\tAdding GL_QUAD_STRIP\n"; break; |
ca3c13d1 |
534 | case GL_POLYGON: std::cout << "\tAdding GL_POLYGON\n"; break; |
535 | #endif |
e276548b |
536 | } |
537 | #endif |
538 | |
25ef750e |
539 | OpenGl_Mat4 aNormalMatrix; |
540 | |
541 | if (theTransform != NULL) |
542 | { |
543 | Standard_ASSERT_RETURN (theTransform->Inverted (aNormalMatrix), |
544 | "Error: Failed to compute normal transformation matrix", NULL); |
545 | |
546 | aNormalMatrix.Transpose(); |
547 | } |
548 | |
8d3f219f |
549 | OpenGl_TriangleSet* aSet = new OpenGl_TriangleSet (theArray->GetUID()); |
e276548b |
550 | { |
871fa103 |
551 | aSet->Vertices.reserve (anAttribs->NbElements); |
552 | aSet->Normals .reserve (anAttribs->NbElements); |
25ef750e |
553 | aSet->TexCrds .reserve (anAttribs->NbElements); |
554 | |
871fa103 |
555 | const size_t aVertFrom = aSet->Vertices.size(); |
556 | for (Standard_Integer anAttribIter = 0; anAttribIter < anAttribs->NbAttributes; ++anAttribIter) |
265d4508 |
557 | { |
871fa103 |
558 | const Graphic3d_Attribute& anAttrib = anAttribs->Attribute (anAttribIter); |
559 | const size_t anOffset = anAttribs->AttributeOffset (anAttribIter); |
560 | if (anAttrib.Id == Graphic3d_TOA_POS) |
561 | { |
562 | if (anAttrib.DataType == Graphic3d_TOD_VEC3 |
563 | || anAttrib.DataType == Graphic3d_TOD_VEC4) |
564 | { |
565 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
566 | { |
25ef750e |
567 | aSet->Vertices.push_back ( |
568 | *reinterpret_cast<const Graphic3d_Vec3* >(anAttribs->value (aVertIter) + anOffset)); |
871fa103 |
569 | } |
570 | } |
571 | else if (anAttrib.DataType == Graphic3d_TOD_VEC2) |
572 | { |
573 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
574 | { |
575 | const Graphic3d_Vec2& aVert = *reinterpret_cast<const Graphic3d_Vec2* >(anAttribs->value (aVertIter) + anOffset); |
25ef750e |
576 | aSet->Vertices.push_back (BVH_Vec3f (aVert.x(), aVert.y(), 0.0f)); |
871fa103 |
577 | } |
578 | } |
579 | } |
580 | else if (anAttrib.Id == Graphic3d_TOA_NORM) |
581 | { |
582 | if (anAttrib.DataType == Graphic3d_TOD_VEC3 |
583 | || anAttrib.DataType == Graphic3d_TOD_VEC4) |
584 | { |
585 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
586 | { |
25ef750e |
587 | aSet->Normals.push_back ( |
588 | *reinterpret_cast<const Graphic3d_Vec3* >(anAttribs->value (aVertIter) + anOffset)); |
589 | } |
590 | } |
591 | } |
592 | else if (anAttrib.Id == Graphic3d_TOA_UV) |
593 | { |
594 | if (anAttrib.DataType == Graphic3d_TOD_VEC2) |
595 | { |
596 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
597 | { |
598 | aSet->TexCrds.push_back ( |
599 | *reinterpret_cast<const Graphic3d_Vec2* >(anAttribs->value (aVertIter) + anOffset)); |
871fa103 |
600 | } |
601 | } |
602 | } |
265d4508 |
603 | } |
e276548b |
604 | |
871fa103 |
605 | if (aSet->Normals.size() != aSet->Vertices.size()) |
265d4508 |
606 | { |
871fa103 |
607 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
265d4508 |
608 | { |
25ef750e |
609 | aSet->Normals.push_back (BVH_Vec3f()); |
610 | } |
611 | } |
612 | |
613 | if (aSet->TexCrds.size() != aSet->Vertices.size()) |
614 | { |
615 | for (Standard_Integer aVertIter = 0; aVertIter < anAttribs->NbElements; ++aVertIter) |
616 | { |
617 | aSet->TexCrds.push_back (BVH_Vec2f()); |
265d4508 |
618 | } |
871fa103 |
619 | } |
e276548b |
620 | |
25ef750e |
621 | if (theTransform != NULL) |
871fa103 |
622 | { |
623 | for (size_t aVertIter = aVertFrom; aVertIter < aSet->Vertices.size(); ++aVertIter) |
624 | { |
25ef750e |
625 | BVH_Vec3f& aVertex = aSet->Vertices[aVertIter]; |
626 | |
627 | BVH_Vec4f aTransVertex = |
628 | *theTransform * BVH_Vec4f (aVertex.x(), aVertex.y(), aVertex.z(), 1.f); |
629 | |
630 | aVertex = BVH_Vec3f (aTransVertex.x(), aTransVertex.y(), aTransVertex.z()); |
871fa103 |
631 | } |
632 | for (size_t aVertIter = aVertFrom; aVertIter < aSet->Normals.size(); ++aVertIter) |
633 | { |
25ef750e |
634 | BVH_Vec3f& aNormal = aSet->Normals[aVertIter]; |
635 | |
636 | BVH_Vec4f aTransNormal = |
637 | aNormalMatrix * BVH_Vec4f (aNormal.x(), aNormal.y(), aNormal.z(), 0.f); |
638 | |
639 | aNormal = BVH_Vec3f (aTransNormal.x(), aTransNormal.y(), aTransNormal.z()); |
871fa103 |
640 | } |
e276548b |
641 | } |
642 | |
871fa103 |
643 | if (!aBounds.IsNull()) |
265d4508 |
644 | { |
e2da917a |
645 | #ifdef RAY_TRACE_PRINT_INFO |
bc8c79bb |
646 | std::cout << "\tNumber of bounds = " << aBounds->NbBounds << std::endl; |
e2da917a |
647 | #endif |
e276548b |
648 | |
265d4508 |
649 | Standard_Integer aBoundStart = 0; |
871fa103 |
650 | for (Standard_Integer aBound = 0; aBound < aBounds->NbBounds; ++aBound) |
265d4508 |
651 | { |
871fa103 |
652 | const Standard_Integer aVertNum = aBounds->Bounds[aBound]; |
e276548b |
653 | |
e2da917a |
654 | #ifdef RAY_TRACE_PRINT_INFO |
265d4508 |
655 | std::cout << "\tAdding indices from bound " << aBound << ": " << |
656 | aBoundStart << " .. " << aVertNum << std::endl; |
e2da917a |
657 | #endif |
265d4508 |
658 | |
871fa103 |
659 | if (!AddRaytraceVertexIndices (*aSet, *theArray, aBoundStart, aVertNum, theMatID)) |
265d4508 |
660 | { |
661 | delete aSet; |
662 | return NULL; |
663 | } |
664 | |
665 | aBoundStart += aVertNum; |
666 | } |
667 | } |
668 | else |
e276548b |
669 | { |
871fa103 |
670 | const Standard_Integer aVertNum = !anIndices.IsNull() ? anIndices->NbElements : anAttribs->NbElements; |
e276548b |
671 | |
265d4508 |
672 | #ifdef RAY_TRACE_PRINT_INFO |
673 | std::cout << "\tAdding indices from array: " << aVertNum << std::endl; |
674 | #endif |
e276548b |
675 | |
871fa103 |
676 | if (!AddRaytraceVertexIndices (*aSet, *theArray, 0, aVertNum, theMatID)) |
e276548b |
677 | { |
265d4508 |
678 | delete aSet; |
679 | return NULL; |
e276548b |
680 | } |
e276548b |
681 | } |
682 | } |
e276548b |
683 | |
265d4508 |
684 | if (aSet->Size() != 0) |
685 | aSet->MarkDirty(); |
e276548b |
686 | |
265d4508 |
687 | return aSet; |
e276548b |
688 | } |
689 | |
690 | // ======================================================================= |
691 | // function : AddRaytraceVertexIndices |
692 | // purpose : Adds vertex indices to ray-traced scene geometry |
693 | // ======================================================================= |
871fa103 |
694 | Standard_Boolean OpenGl_Workspace::AddRaytraceVertexIndices (OpenGl_TriangleSet& theSet, |
695 | const OpenGl_PrimitiveArray& theArray, |
696 | Standard_Integer theOffset, |
697 | Standard_Integer theCount, |
698 | Standard_Integer theMatID) |
e276548b |
699 | { |
871fa103 |
700 | switch (theArray.DrawMode()) |
e276548b |
701 | { |
871fa103 |
702 | case GL_TRIANGLES: return AddRaytraceTriangleArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
871fa103 |
703 | case GL_TRIANGLE_FAN: return AddRaytraceTriangleFanArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
704 | case GL_TRIANGLE_STRIP: return AddRaytraceTriangleStripArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
ca3c13d1 |
705 | #if !defined(GL_ES_VERSION_2_0) |
706 | case GL_QUADS: return AddRaytraceQuadrangleArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
871fa103 |
707 | case GL_QUAD_STRIP: return AddRaytraceQuadrangleStripArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
708 | case GL_POLYGON: return AddRaytracePolygonArray (theSet, theArray.Indices(), theOffset, theCount, theMatID); |
ca3c13d1 |
709 | #endif |
e276548b |
710 | } |
871fa103 |
711 | return Standard_False; |
e276548b |
712 | } |
713 | |
714 | // ======================================================================= |
715 | // function : AddRaytraceTriangleArray |
716 | // purpose : Adds OpenGL triangle array to ray-traced scene geometry |
717 | // ======================================================================= |
871fa103 |
718 | Standard_Boolean OpenGl_Workspace::AddRaytraceTriangleArray (OpenGl_TriangleSet& theSet, |
719 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
720 | Standard_Integer theOffset, |
721 | Standard_Integer theCount, |
722 | Standard_Integer theMatID) |
e276548b |
723 | { |
265d4508 |
724 | if (theCount < 3) |
e276548b |
725 | return Standard_True; |
726 | |
871fa103 |
727 | theSet.Elements.reserve (theSet.Elements.size() + theCount / 3); |
265d4508 |
728 | |
871fa103 |
729 | if (!theIndices.IsNull()) |
e276548b |
730 | { |
265d4508 |
731 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; aVert += 3) |
e276548b |
732 | { |
871fa103 |
733 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
734 | theIndices->Index (aVert + 1), |
735 | theIndices->Index (aVert + 2), |
736 | theMatID)); |
e276548b |
737 | } |
738 | } |
739 | else |
740 | { |
265d4508 |
741 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; aVert += 3) |
e276548b |
742 | { |
871fa103 |
743 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, aVert + 1, aVert + 2, |
744 | theMatID)); |
e276548b |
745 | } |
746 | } |
747 | |
748 | return Standard_True; |
749 | } |
750 | |
751 | // ======================================================================= |
752 | // function : AddRaytraceTriangleFanArray |
753 | // purpose : Adds OpenGL triangle fan array to ray-traced scene geometry |
754 | // ======================================================================= |
871fa103 |
755 | Standard_Boolean OpenGl_Workspace::AddRaytraceTriangleFanArray (OpenGl_TriangleSet& theSet, |
756 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
757 | Standard_Integer theOffset, |
758 | Standard_Integer theCount, |
759 | Standard_Integer theMatID) |
e276548b |
760 | { |
265d4508 |
761 | if (theCount < 3) |
e276548b |
762 | return Standard_True; |
763 | |
871fa103 |
764 | theSet.Elements.reserve (theSet.Elements.size() + theCount - 2); |
265d4508 |
765 | |
871fa103 |
766 | if (!theIndices.IsNull()) |
e276548b |
767 | { |
265d4508 |
768 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
769 | { |
871fa103 |
770 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (theOffset), |
771 | theIndices->Index (aVert + 1), |
772 | theIndices->Index (aVert + 2), |
773 | theMatID)); |
e276548b |
774 | } |
775 | } |
776 | else |
777 | { |
265d4508 |
778 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
779 | { |
871fa103 |
780 | theSet.Elements.push_back (BVH_Vec4i (theOffset, |
781 | aVert + 1, |
782 | aVert + 2, |
783 | theMatID)); |
e276548b |
784 | } |
785 | } |
786 | |
787 | return Standard_True; |
788 | } |
789 | |
790 | // ======================================================================= |
791 | // function : AddRaytraceTriangleStripArray |
792 | // purpose : Adds OpenGL triangle strip array to ray-traced scene geometry |
793 | // ======================================================================= |
871fa103 |
794 | Standard_Boolean OpenGl_Workspace::AddRaytraceTriangleStripArray (OpenGl_TriangleSet& theSet, |
795 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
796 | Standard_Integer theOffset, |
797 | Standard_Integer theCount, |
798 | Standard_Integer theMatID) |
e276548b |
799 | { |
265d4508 |
800 | if (theCount < 3) |
e276548b |
801 | return Standard_True; |
802 | |
871fa103 |
803 | theSet.Elements.reserve (theSet.Elements.size() + theCount - 2); |
265d4508 |
804 | |
871fa103 |
805 | if (!theIndices.IsNull()) |
e276548b |
806 | { |
265d4508 |
807 | for (Standard_Integer aVert = theOffset, aCW = 0; aVert < theOffset + theCount - 2; ++aVert, aCW = (aCW + 1) % 2) |
e276548b |
808 | { |
871fa103 |
809 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + aCW ? 1 : 0), |
810 | theIndices->Index (aVert + aCW ? 0 : 1), |
811 | theIndices->Index (aVert + 2), |
812 | theMatID)); |
e276548b |
813 | } |
814 | } |
815 | else |
816 | { |
265d4508 |
817 | for (Standard_Integer aVert = theOffset, aCW = 0; aVert < theOffset + theCount - 2; ++aVert, aCW = (aCW + 1) % 2) |
e276548b |
818 | { |
871fa103 |
819 | theSet.Elements.push_back (BVH_Vec4i (aVert + aCW ? 1 : 0, |
820 | aVert + aCW ? 0 : 1, |
821 | aVert + 2, |
822 | theMatID)); |
e276548b |
823 | } |
824 | } |
825 | |
826 | return Standard_True; |
827 | } |
828 | |
829 | // ======================================================================= |
830 | // function : AddRaytraceQuadrangleArray |
831 | // purpose : Adds OpenGL quad array to ray-traced scene geometry |
832 | // ======================================================================= |
871fa103 |
833 | Standard_Boolean OpenGl_Workspace::AddRaytraceQuadrangleArray (OpenGl_TriangleSet& theSet, |
834 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
835 | Standard_Integer theOffset, |
836 | Standard_Integer theCount, |
837 | Standard_Integer theMatID) |
e276548b |
838 | { |
265d4508 |
839 | if (theCount < 4) |
e276548b |
840 | return Standard_True; |
841 | |
871fa103 |
842 | theSet.Elements.reserve (theSet.Elements.size() + theCount / 2); |
265d4508 |
843 | |
871fa103 |
844 | if (!theIndices.IsNull()) |
e276548b |
845 | { |
265d4508 |
846 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 4) |
e276548b |
847 | { |
871fa103 |
848 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
849 | theIndices->Index (aVert + 1), |
850 | theIndices->Index (aVert + 2), |
851 | theMatID)); |
852 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
853 | theIndices->Index (aVert + 2), |
854 | theIndices->Index (aVert + 3), |
855 | theMatID)); |
e276548b |
856 | } |
857 | } |
858 | else |
859 | { |
265d4508 |
860 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 4) |
e276548b |
861 | { |
871fa103 |
862 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, aVert + 1, aVert + 2, |
863 | theMatID)); |
864 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, aVert + 2, aVert + 3, |
865 | theMatID)); |
e276548b |
866 | } |
867 | } |
868 | |
869 | return Standard_True; |
870 | } |
871 | |
872 | // ======================================================================= |
873 | // function : AddRaytraceQuadrangleStripArray |
874 | // purpose : Adds OpenGL quad strip array to ray-traced scene geometry |
875 | // ======================================================================= |
871fa103 |
876 | Standard_Boolean OpenGl_Workspace::AddRaytraceQuadrangleStripArray (OpenGl_TriangleSet& theSet, |
877 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
878 | Standard_Integer theOffset, |
879 | Standard_Integer theCount, |
880 | Standard_Integer theMatID) |
e276548b |
881 | { |
265d4508 |
882 | if (theCount < 4) |
e276548b |
883 | return Standard_True; |
884 | |
871fa103 |
885 | theSet.Elements.reserve (theSet.Elements.size() + 2 * theCount - 6); |
265d4508 |
886 | |
871fa103 |
887 | if (!theIndices.IsNull()) |
e276548b |
888 | { |
265d4508 |
889 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 2) |
e276548b |
890 | { |
871fa103 |
891 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 0), |
892 | theIndices->Index (aVert + 1), |
893 | theIndices->Index (aVert + 2), |
894 | theMatID)); |
895 | |
896 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (aVert + 1), |
897 | theIndices->Index (aVert + 3), |
898 | theIndices->Index (aVert + 2), |
899 | theMatID)); |
e276548b |
900 | } |
901 | } |
902 | else |
903 | { |
265d4508 |
904 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 3; aVert += 2) |
e276548b |
905 | { |
871fa103 |
906 | theSet.Elements.push_back (BVH_Vec4i (aVert + 0, |
907 | aVert + 1, |
908 | aVert + 2, |
909 | theMatID)); |
910 | |
911 | theSet.Elements.push_back (BVH_Vec4i (aVert + 1, |
912 | aVert + 3, |
913 | aVert + 2, |
914 | theMatID)); |
e276548b |
915 | } |
916 | } |
917 | |
918 | return Standard_True; |
919 | } |
920 | |
921 | // ======================================================================= |
922 | // function : AddRaytracePolygonArray |
923 | // purpose : Adds OpenGL polygon array to ray-traced scene geometry |
924 | // ======================================================================= |
871fa103 |
925 | Standard_Boolean OpenGl_Workspace::AddRaytracePolygonArray (OpenGl_TriangleSet& theSet, |
926 | const Handle(Graphic3d_IndexBuffer)& theIndices, |
927 | Standard_Integer theOffset, |
928 | Standard_Integer theCount, |
929 | Standard_Integer theMatID) |
e276548b |
930 | { |
265d4508 |
931 | if (theCount < 3) |
e276548b |
932 | return Standard_True; |
933 | |
871fa103 |
934 | theSet.Elements.reserve (theSet.Elements.size() + theCount - 2); |
265d4508 |
935 | |
871fa103 |
936 | if (!theIndices.IsNull()) |
e276548b |
937 | { |
265d4508 |
938 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
939 | { |
871fa103 |
940 | theSet.Elements.push_back (BVH_Vec4i (theIndices->Index (theOffset), |
941 | theIndices->Index (aVert + 1), |
942 | theIndices->Index (aVert + 2), |
943 | theMatID)); |
e276548b |
944 | } |
945 | } |
946 | else |
947 | { |
265d4508 |
948 | for (Standard_Integer aVert = theOffset; aVert < theOffset + theCount - 2; ++aVert) |
e276548b |
949 | { |
871fa103 |
950 | theSet.Elements.push_back (BVH_Vec4i (theOffset, |
951 | aVert + 1, |
952 | aVert + 2, |
953 | theMatID)); |
e276548b |
954 | } |
955 | } |
956 | |
957 | return Standard_True; |
958 | } |
959 | |
960 | // ======================================================================= |
961 | // function : UpdateRaytraceLightSources |
962 | // purpose : Updates 3D scene light sources for ray-tracing |
963 | // ======================================================================= |
25ef750e |
964 | Standard_Boolean OpenGl_Workspace::UpdateRaytraceLightSources (const OpenGl_Mat4& theInvModelView) |
e276548b |
965 | { |
265d4508 |
966 | myRaytraceGeometry.Sources.clear(); |
e276548b |
967 | |
fc73a202 |
968 | myRaytraceGeometry.Ambient = BVH_Vec4f (0.0f, 0.0f, 0.0f, 0.0f); |
265d4508 |
969 | |
970 | for (OpenGl_ListOfLight::Iterator anItl (myView->LightList()); anItl.More(); anItl.Next()) |
e276548b |
971 | { |
12381341 |
972 | const OpenGl_Light& aLight = anItl.Value(); |
265d4508 |
973 | |
12381341 |
974 | if (aLight.Type == Visual3d_TOLS_AMBIENT) |
e276548b |
975 | { |
fc73a202 |
976 | myRaytraceGeometry.Ambient += BVH_Vec4f (aLight.Color.r(), |
977 | aLight.Color.g(), |
978 | aLight.Color.b(), |
979 | 0.0f); |
e276548b |
980 | continue; |
981 | } |
982 | |
265d4508 |
983 | BVH_Vec4f aDiffuse (aLight.Color.r(), |
984 | aLight.Color.g(), |
985 | aLight.Color.b(), |
986 | 1.0f); |
987 | |
988 | BVH_Vec4f aPosition (-aLight.Direction.x(), |
989 | -aLight.Direction.y(), |
990 | -aLight.Direction.z(), |
991 | 0.0f); |
992 | |
12381341 |
993 | if (aLight.Type != Visual3d_TOLS_DIRECTIONAL) |
e276548b |
994 | { |
265d4508 |
995 | aPosition = BVH_Vec4f (aLight.Position.x(), |
996 | aLight.Position.y(), |
997 | aLight.Position.z(), |
998 | 1.0f); |
e276548b |
999 | } |
265d4508 |
1000 | |
12381341 |
1001 | if (aLight.IsHeadlight) |
25ef750e |
1002 | { |
1003 | aPosition = theInvModelView * aPosition; |
1004 | } |
e276548b |
1005 | |
265d4508 |
1006 | myRaytraceGeometry.Sources.push_back (OpenGl_RaytraceLight (aDiffuse, aPosition)); |
e276548b |
1007 | } |
1008 | |
fc73a202 |
1009 | if (myRaytraceLightSrcTexture.IsNull()) // create light source buffer |
e276548b |
1010 | { |
fc73a202 |
1011 | myRaytraceLightSrcTexture = new OpenGl_TextureBufferArb; |
e276548b |
1012 | |
fc73a202 |
1013 | if (!myRaytraceLightSrcTexture->Create (myGlContext)) |
1014 | { |
e276548b |
1015 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1016 | std::cout << "Error: Failed to create light source buffer" << std::endl; |
e276548b |
1017 | #endif |
fc73a202 |
1018 | return Standard_False; |
1019 | } |
e276548b |
1020 | } |
fc73a202 |
1021 | |
1022 | if (myRaytraceGeometry.Sources.size() != 0) |
e276548b |
1023 | { |
fc73a202 |
1024 | const GLfloat* aDataPtr = myRaytraceGeometry.Sources.front().Packed(); |
5cff985a |
1025 | if (!myRaytraceLightSrcTexture->Init (myGlContext, 4, GLsizei (myRaytraceGeometry.Sources.size() * 2), aDataPtr)) |
fc73a202 |
1026 | { |
1027 | #ifdef RAY_TRACE_PRINT_INFO |
1028 | std::cout << "Error: Failed to upload light source buffer" << std::endl; |
e276548b |
1029 | #endif |
fc73a202 |
1030 | return Standard_False; |
1031 | } |
1032 | } |
e276548b |
1033 | |
1034 | return Standard_True; |
1035 | } |
1036 | |
1037 | // ======================================================================= |
fc73a202 |
1038 | // function : UpdateRaytraceEnvironmentMap |
1039 | // purpose : Updates environment map for ray-tracing |
e276548b |
1040 | // ======================================================================= |
fc73a202 |
1041 | Standard_Boolean OpenGl_Workspace::UpdateRaytraceEnvironmentMap() |
e276548b |
1042 | { |
fc73a202 |
1043 | if (myView.IsNull()) |
e276548b |
1044 | return Standard_False; |
e276548b |
1045 | |
fc73a202 |
1046 | if (myViewModificationStatus == myView->ModificationState()) |
1047 | return Standard_True; |
e276548b |
1048 | |
fc73a202 |
1049 | for (Standard_Integer anIdx = 0; anIdx < 2; ++anIdx) |
e276548b |
1050 | { |
fc73a202 |
1051 | const Handle(OpenGl_ShaderProgram)& aProgram = |
1052 | anIdx == 0 ? myRaytraceProgram : myPostFSAAProgram; |
e276548b |
1053 | |
fc73a202 |
1054 | if (!aProgram.IsNull()) |
e276548b |
1055 | { |
7d3e64ef |
1056 | myGlContext->BindProgram (aProgram); |
e276548b |
1057 | |
fc73a202 |
1058 | if (!myView->TextureEnv().IsNull() && myView->SurfaceDetail() != Visual3d_TOD_NONE) |
e276548b |
1059 | { |
fc73a202 |
1060 | myView->TextureEnv()->Bind ( |
1061 | myGlContext, GL_TEXTURE0 + OpenGl_RT_EnvironmentMapTexture); |
1062 | |
84c71f29 |
1063 | aProgram->SetUniform (myGlContext, |
25ef750e |
1064 | myUniformLocations[anIdx][OpenGl_RT_uEnvMapEnable], 1); |
e276548b |
1065 | } |
1066 | else |
1067 | { |
84c71f29 |
1068 | aProgram->SetUniform (myGlContext, |
25ef750e |
1069 | myUniformLocations[anIdx][OpenGl_RT_uEnvMapEnable], 0); |
e276548b |
1070 | } |
fc73a202 |
1071 | } |
e276548b |
1072 | } |
1073 | |
7d3e64ef |
1074 | myGlContext->BindProgram (NULL); |
fc73a202 |
1075 | myViewModificationStatus = myView->ModificationState(); |
e276548b |
1076 | return Standard_True; |
1077 | } |
1078 | |
1079 | // ======================================================================= |
fc73a202 |
1080 | // function : Source |
1081 | // purpose : Returns shader source combined with prefix |
e276548b |
1082 | // ======================================================================= |
fc73a202 |
1083 | TCollection_AsciiString OpenGl_Workspace::ShaderSource::Source() const |
e276548b |
1084 | { |
fc73a202 |
1085 | static const TCollection_AsciiString aVersion = "#version 140"; |
e276548b |
1086 | |
fc73a202 |
1087 | if (myPrefix.IsEmpty()) |
e276548b |
1088 | { |
fc73a202 |
1089 | return aVersion + "\n" + mySource; |
e276548b |
1090 | } |
1091 | |
fc73a202 |
1092 | return aVersion + "\n" + myPrefix + "\n" + mySource; |
e276548b |
1093 | } |
1094 | |
1095 | // ======================================================================= |
fc73a202 |
1096 | // function : Load |
1097 | // purpose : Loads shader source from specified files |
e276548b |
1098 | // ======================================================================= |
fc73a202 |
1099 | void OpenGl_Workspace::ShaderSource::Load ( |
1100 | const TCollection_AsciiString* theFileNames, const Standard_Integer theCount) |
e276548b |
1101 | { |
fc73a202 |
1102 | mySource.Clear(); |
e276548b |
1103 | |
fc73a202 |
1104 | for (Standard_Integer anIndex = 0; anIndex < theCount; ++anIndex) |
1105 | { |
1106 | OSD_File aFile (theFileNames[anIndex]); |
e276548b |
1107 | |
fc73a202 |
1108 | Standard_ASSERT_RETURN (aFile.Exists(), |
1109 | "Error: Failed to find shader source file", /* none */); |
e276548b |
1110 | |
fc73a202 |
1111 | aFile.Open (OSD_ReadOnly, OSD_Protection()); |
265d4508 |
1112 | |
fc73a202 |
1113 | TCollection_AsciiString aSource; |
265d4508 |
1114 | |
fc73a202 |
1115 | Standard_ASSERT_RETURN (aFile.IsOpen(), |
1116 | "Error: Failed to open shader source file", /* none */); |
e276548b |
1117 | |
fc73a202 |
1118 | aFile.Read (aSource, (Standard_Integer) aFile.Size()); |
e276548b |
1119 | |
fc73a202 |
1120 | if (!aSource.IsEmpty()) |
1121 | { |
1122 | mySource += TCollection_AsciiString ("\n") + aSource; |
1123 | } |
68333c8f |
1124 | |
fc73a202 |
1125 | aFile.Close(); |
68333c8f |
1126 | } |
e276548b |
1127 | } |
1128 | |
1129 | // ======================================================================= |
fc73a202 |
1130 | // function : LoadShader |
1131 | // purpose : Creates new shader object with specified source |
e276548b |
1132 | // ======================================================================= |
fc73a202 |
1133 | Handle(OpenGl_ShaderObject) OpenGl_Workspace::LoadShader (const ShaderSource& theSource, GLenum theType) |
e276548b |
1134 | { |
fc73a202 |
1135 | Handle(OpenGl_ShaderObject) aShader = new OpenGl_ShaderObject (theType); |
e276548b |
1136 | |
fc73a202 |
1137 | if (!aShader->Create (myGlContext)) |
e276548b |
1138 | { |
07039714 |
1139 | const TCollection_ExtendedString aMessage = TCollection_ExtendedString ("Error: Failed to create ") + |
1140 | (theType == GL_VERTEX_SHADER ? "vertex" : "fragment") + " shader object"; |
1141 | |
fc73a202 |
1142 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1143 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
e276548b |
1144 | |
fc73a202 |
1145 | aShader->Release (myGlContext.operator->()); |
e276548b |
1146 | |
fc73a202 |
1147 | return Handle(OpenGl_ShaderObject)(); |
e276548b |
1148 | } |
5322131b |
1149 | |
fc73a202 |
1150 | if (!aShader->LoadSource (myGlContext, theSource.Source())) |
1151 | { |
07039714 |
1152 | const TCollection_ExtendedString aMessage = TCollection_ExtendedString ("Error: Failed to set ") + |
1153 | (theType == GL_VERTEX_SHADER ? "vertex" : "fragment") + " shader source"; |
1154 | |
fc73a202 |
1155 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1156 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
e276548b |
1157 | |
fc73a202 |
1158 | aShader->Release (myGlContext.operator->()); |
e276548b |
1159 | |
fc73a202 |
1160 | return Handle(OpenGl_ShaderObject)(); |
1161 | } |
e276548b |
1162 | |
fc73a202 |
1163 | TCollection_AsciiString aBuildLog; |
e276548b |
1164 | |
fc73a202 |
1165 | if (!aShader->Compile (myGlContext)) |
e276548b |
1166 | { |
07039714 |
1167 | aShader->FetchInfoLog (myGlContext, aBuildLog); |
fc73a202 |
1168 | |
07039714 |
1169 | const TCollection_ExtendedString aMessage = TCollection_ExtendedString ("Error: Failed to compile ") + |
1170 | (theType == GL_VERTEX_SHADER ? "vertex" : "fragment") + " shader object:\n" + aBuildLog; |
1171 | |
1172 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1173 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, aMessage); |
e276548b |
1174 | |
fc73a202 |
1175 | aShader->Release (myGlContext.operator->()); |
1176 | |
1177 | return Handle(OpenGl_ShaderObject)(); |
1178 | } |
07039714 |
1179 | else if (myGlContext->caps->glslWarnings) |
fc73a202 |
1180 | { |
07039714 |
1181 | aShader->FetchInfoLog (myGlContext, aBuildLog); |
1182 | |
1183 | if (!aBuildLog.IsEmpty() && !aBuildLog.IsEqual ("No errors.\n")) |
fc73a202 |
1184 | { |
07039714 |
1185 | const TCollection_ExtendedString aMessage = TCollection_ExtendedString (theType == GL_VERTEX_SHADER ? |
1186 | "Vertex" : "Fragment") + " shader was compiled with following warnings:\n" + aBuildLog; |
1187 | |
1188 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1189 | GL_DEBUG_TYPE_PORTABILITY_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMessage); |
fc73a202 |
1190 | } |
07039714 |
1191 | } |
e276548b |
1192 | |
fc73a202 |
1193 | return aShader; |
e276548b |
1194 | } |
1195 | |
1196 | // ======================================================================= |
fc73a202 |
1197 | // function : SafeFailBack |
1198 | // purpose : Performs safe exit when shaders initialization fails |
e276548b |
1199 | // ======================================================================= |
fc73a202 |
1200 | Standard_Boolean OpenGl_Workspace::SafeFailBack (const TCollection_ExtendedString& theMessage) |
e276548b |
1201 | { |
fc73a202 |
1202 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1203 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, theMessage); |
265d4508 |
1204 | |
fc73a202 |
1205 | myComputeInitStatus = OpenGl_RT_FAIL; |
265d4508 |
1206 | |
fc73a202 |
1207 | ReleaseRaytraceResources(); |
07039714 |
1208 | |
fc73a202 |
1209 | return Standard_False; |
1210 | } |
e276548b |
1211 | |
25ef750e |
1212 | // ======================================================================= |
1213 | // function : GenerateShaderPrefix |
1214 | // purpose : Generates shader prefix based on current ray-tracing options |
1215 | // ======================================================================= |
1216 | TCollection_AsciiString OpenGl_Workspace::GenerateShaderPrefix() |
1217 | { |
1218 | TCollection_AsciiString aPrefixString = |
1219 | TCollection_AsciiString ("#define STACK_SIZE ") + TCollection_AsciiString (myRaytraceParameters.StackSize) + "\n" + |
1220 | TCollection_AsciiString ("#define NB_BOUNCES ") + TCollection_AsciiString (myRaytraceParameters.NbBounces); |
1221 | |
1222 | if (myRaytraceParameters.TransparentShadows) |
1223 | { |
1224 | aPrefixString += TCollection_AsciiString ("\n#define TRANSPARENT_SHADOWS"); |
1225 | } |
1226 | |
1227 | // If OpenGL driver supports bindless textures |
1228 | // activate texturing in ray-tracing mode |
1229 | if (myGlContext->arbTexBindless != NULL) |
1230 | { |
1231 | aPrefixString += TCollection_AsciiString ("\n#define USE_TEXTURES") + |
1232 | TCollection_AsciiString ("\n#define MAX_TEX_NUMBER ") + TCollection_AsciiString (OpenGl_RaytraceGeometry::MAX_TEX_NUMBER); |
1233 | } |
1234 | |
1235 | return aPrefixString; |
1236 | } |
1237 | |
fc73a202 |
1238 | // ======================================================================= |
1239 | // function : InitRaytraceResources |
1240 | // purpose : Initializes OpenGL/GLSL shader programs |
1241 | // ======================================================================= |
bc8c79bb |
1242 | Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView& theCView) |
fc73a202 |
1243 | { |
07039714 |
1244 | if (myComputeInitStatus == OpenGl_RT_FAIL) |
1245 | { |
1246 | return Standard_False; |
1247 | } |
1248 | |
fc73a202 |
1249 | Standard_Boolean aToRebuildShaders = Standard_False; |
e276548b |
1250 | |
fc73a202 |
1251 | if (myComputeInitStatus == OpenGl_RT_INIT) |
1252 | { |
1253 | if (!myIsRaytraceDataValid) |
1254 | return Standard_True; |
e276548b |
1255 | |
fc73a202 |
1256 | const Standard_Integer aRequiredStackSize = |
1257 | myRaytraceGeometry.HighLevelTreeDepth() + myRaytraceGeometry.BottomLevelTreeDepth(); |
e276548b |
1258 | |
bc8c79bb |
1259 | if (myRaytraceParameters.StackSize < aRequiredStackSize) |
fc73a202 |
1260 | { |
bc8c79bb |
1261 | myRaytraceParameters.StackSize = Max (aRequiredStackSize, THE_DEFAULT_STACK_SIZE); |
e276548b |
1262 | |
fc73a202 |
1263 | aToRebuildShaders = Standard_True; |
1264 | } |
1265 | else |
1266 | { |
bc8c79bb |
1267 | if (aRequiredStackSize < myRaytraceParameters.StackSize) |
fc73a202 |
1268 | { |
bc8c79bb |
1269 | if (myRaytraceParameters.StackSize > THE_DEFAULT_STACK_SIZE) |
fc73a202 |
1270 | { |
bc8c79bb |
1271 | myRaytraceParameters.StackSize = Max (aRequiredStackSize, THE_DEFAULT_STACK_SIZE); |
fc73a202 |
1272 | aToRebuildShaders = Standard_True; |
1273 | } |
1274 | } |
1275 | } |
e276548b |
1276 | |
25ef750e |
1277 | if (theCView.RenderParams.RaytracingDepth != myRaytraceParameters.NbBounces) |
bc8c79bb |
1278 | { |
25ef750e |
1279 | myRaytraceParameters.NbBounces = theCView.RenderParams.RaytracingDepth; |
bc8c79bb |
1280 | aToRebuildShaders = Standard_True; |
1281 | } |
1282 | |
1283 | if (theCView.RenderParams.IsTransparentShadowEnabled != myRaytraceParameters.TransparentShadows) |
1284 | { |
1285 | myRaytraceParameters.TransparentShadows = theCView.RenderParams.IsTransparentShadowEnabled; |
1286 | aToRebuildShaders = Standard_True; |
1287 | } |
1288 | |
fc73a202 |
1289 | if (aToRebuildShaders) |
1290 | { |
e276548b |
1291 | #ifdef RAY_TRACE_PRINT_INFO |
bc8c79bb |
1292 | std::cout << "Info: Rebuild shaders with stack size: " << myRaytraceParameters.StackSize << std::endl; |
e276548b |
1293 | #endif |
e276548b |
1294 | |
bc8c79bb |
1295 | // Change state to force update all uniforms |
84c71f29 |
1296 | ++myViewModificationStatus; |
1297 | |
25ef750e |
1298 | TCollection_AsciiString aPrefixString = GenerateShaderPrefix(); |
bc8c79bb |
1299 | |
1300 | #ifdef RAY_TRACE_PRINT_INFO |
1301 | std::cout << "GLSL prefix string:" << std::endl << aPrefixString << std::endl; |
1302 | #endif |
265d4508 |
1303 | |
bc8c79bb |
1304 | myRaytraceShaderSource.SetPrefix (aPrefixString); |
1305 | myPostFSAAShaderSource.SetPrefix (aPrefixString); |
265d4508 |
1306 | |
fc73a202 |
1307 | if (!myRaytraceShader->LoadSource (myGlContext, myRaytraceShaderSource.Source()) |
1308 | || !myPostFSAAShader->LoadSource (myGlContext, myPostFSAAShaderSource.Source())) |
1309 | { |
07039714 |
1310 | return SafeFailBack ("Failed to load source into ray-tracing fragment shaders"); |
fc73a202 |
1311 | } |
265d4508 |
1312 | |
fc73a202 |
1313 | if (!myRaytraceShader->Compile (myGlContext) |
1314 | || !myPostFSAAShader->Compile (myGlContext)) |
1315 | { |
07039714 |
1316 | return SafeFailBack ("Failed to compile ray-tracing fragment shaders"); |
fc73a202 |
1317 | } |
1318 | |
7d3e64ef |
1319 | myRaytraceProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
1320 | myPostFSAAProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
fc73a202 |
1321 | if (!myRaytraceProgram->Link (myGlContext) |
1322 | || !myPostFSAAProgram->Link (myGlContext)) |
1323 | { |
07039714 |
1324 | return SafeFailBack ("Failed to initialize vertex attributes for ray-tracing program"); |
fc73a202 |
1325 | } |
1326 | } |
e276548b |
1327 | } |
1328 | |
fc73a202 |
1329 | if (myComputeInitStatus == OpenGl_RT_NONE) |
1330 | { |
1331 | if (!myGlContext->IsGlGreaterEqual (3, 1)) |
1332 | { |
07039714 |
1333 | return SafeFailBack ("Ray-tracing requires OpenGL 3.1 and higher"); |
25ef750e |
1334 | } |
1335 | else if (!myGlContext->arbTboRGB32) |
1336 | { |
07039714 |
1337 | return SafeFailBack ("Ray-tracing requires OpenGL 4.0+ or GL_ARB_texture_buffer_object_rgb32 extension"); |
fc73a202 |
1338 | } |
5322131b |
1339 | |
25ef750e |
1340 | myRaytraceParameters.NbBounces = theCView.RenderParams.RaytracingDepth; |
bc8c79bb |
1341 | |
fc73a202 |
1342 | TCollection_AsciiString aFolder = Graphic3d_ShaderProgram::ShadersFolder(); |
265d4508 |
1343 | |
fc73a202 |
1344 | if (aFolder.IsEmpty()) |
1345 | { |
07039714 |
1346 | return SafeFailBack ("Failed to locate shaders directory"); |
fc73a202 |
1347 | } |
265d4508 |
1348 | |
fc73a202 |
1349 | if (myIsRaytraceDataValid) |
1350 | { |
bc8c79bb |
1351 | myRaytraceParameters.StackSize = Max (THE_DEFAULT_STACK_SIZE, |
fc73a202 |
1352 | myRaytraceGeometry.HighLevelTreeDepth() + myRaytraceGeometry.BottomLevelTreeDepth()); |
1353 | } |
265d4508 |
1354 | |
25ef750e |
1355 | TCollection_AsciiString aPrefixString = GenerateShaderPrefix(); |
bc8c79bb |
1356 | |
1357 | #ifdef RAY_TRACE_PRINT_INFO |
1358 | std::cout << "GLSL prefix string:" << std::endl << aPrefixString << std::endl; |
1359 | #endif |
1360 | |
fc73a202 |
1361 | { |
1362 | Handle(OpenGl_ShaderObject) aBasicVertShader = LoadShader ( |
1363 | ShaderSource (aFolder + "/RaytraceBase.vs"), GL_VERTEX_SHADER); |
265d4508 |
1364 | |
fc73a202 |
1365 | if (aBasicVertShader.IsNull()) |
1366 | { |
07039714 |
1367 | return SafeFailBack ("Failed to initialize ray-trace vertex shader"); |
fc73a202 |
1368 | } |
265d4508 |
1369 | |
07039714 |
1370 | TCollection_AsciiString aFiles[] = { aFolder + "/RaytraceBase.fs", |
1371 | aFolder + "/RaytraceRender.fs" }; |
265d4508 |
1372 | |
fc73a202 |
1373 | myRaytraceShaderSource.Load (aFiles, 2); |
e276548b |
1374 | |
bc8c79bb |
1375 | myRaytraceShaderSource.SetPrefix (aPrefixString); |
265d4508 |
1376 | |
fc73a202 |
1377 | myRaytraceShader = LoadShader (myRaytraceShaderSource, GL_FRAGMENT_SHADER); |
265d4508 |
1378 | |
fc73a202 |
1379 | if (myRaytraceShader.IsNull()) |
1380 | { |
1381 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1382 | |
07039714 |
1383 | return SafeFailBack ("Failed to initialize ray-trace fragment shader"); |
fc73a202 |
1384 | } |
265d4508 |
1385 | |
fc73a202 |
1386 | myRaytraceProgram = new OpenGl_ShaderProgram; |
5322131b |
1387 | |
fc73a202 |
1388 | if (!myRaytraceProgram->Create (myGlContext)) |
1389 | { |
1390 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1391 | |
fc73a202 |
1392 | return SafeFailBack ("Failed to create ray-trace shader program"); |
1393 | } |
265d4508 |
1394 | |
fc73a202 |
1395 | if (!myRaytraceProgram->AttachShader (myGlContext, aBasicVertShader) |
1396 | || !myRaytraceProgram->AttachShader (myGlContext, myRaytraceShader)) |
1397 | { |
1398 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1399 | |
fc73a202 |
1400 | return SafeFailBack ("Failed to attach ray-trace shader objects"); |
1401 | } |
265d4508 |
1402 | |
7d3e64ef |
1403 | myRaytraceProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
07039714 |
1404 | |
1405 | TCollection_AsciiString aLinkLog; |
1406 | |
fc73a202 |
1407 | if (!myRaytraceProgram->Link (myGlContext)) |
1408 | { |
07039714 |
1409 | myRaytraceProgram->FetchInfoLog (myGlContext, aLinkLog); |
1410 | |
1411 | return SafeFailBack (TCollection_ExtendedString ( |
1412 | "Failed to link ray-trace shader program:\n") + aLinkLog); |
1413 | } |
1414 | else if (myGlContext->caps->glslWarnings) |
1415 | { |
1416 | myRaytraceProgram->FetchInfoLog (myGlContext, aLinkLog); |
e276548b |
1417 | |
07039714 |
1418 | if (!aLinkLog.IsEmpty() && !aLinkLog.IsEqual ("No errors.\n")) |
fc73a202 |
1419 | { |
07039714 |
1420 | const TCollection_ExtendedString aMessage = TCollection_ExtendedString ( |
1421 | "Ray-trace shader program was linked with following warnings:\n") + aLinkLog; |
265d4508 |
1422 | |
07039714 |
1423 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1424 | GL_DEBUG_TYPE_PORTABILITY_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMessage); |
1425 | } |
fc73a202 |
1426 | } |
1427 | } |
265d4508 |
1428 | |
fc73a202 |
1429 | { |
1430 | Handle(OpenGl_ShaderObject) aBasicVertShader = LoadShader ( |
1431 | ShaderSource (aFolder + "/RaytraceBase.vs"), GL_VERTEX_SHADER); |
265d4508 |
1432 | |
fc73a202 |
1433 | if (aBasicVertShader.IsNull()) |
1434 | { |
07039714 |
1435 | return SafeFailBack ("Failed to initialize FSAA vertex shader"); |
fc73a202 |
1436 | } |
265d4508 |
1437 | |
07039714 |
1438 | TCollection_AsciiString aFiles[] = { aFolder + "/RaytraceBase.fs", |
1439 | aFolder + "/RaytraceSmooth.fs" }; |
265d4508 |
1440 | |
fc73a202 |
1441 | myPostFSAAShaderSource.Load (aFiles, 2); |
265d4508 |
1442 | |
bc8c79bb |
1443 | myPostFSAAShaderSource.SetPrefix (aPrefixString); |
fc73a202 |
1444 | |
1445 | myPostFSAAShader = LoadShader (myPostFSAAShaderSource, GL_FRAGMENT_SHADER); |
265d4508 |
1446 | |
fc73a202 |
1447 | if (myPostFSAAShader.IsNull()) |
1448 | { |
1449 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1450 | |
07039714 |
1451 | return SafeFailBack ("Failed to initialize FSAA fragment shader"); |
fc73a202 |
1452 | } |
265d4508 |
1453 | |
fc73a202 |
1454 | myPostFSAAProgram = new OpenGl_ShaderProgram; |
265d4508 |
1455 | |
fc73a202 |
1456 | if (!myPostFSAAProgram->Create (myGlContext)) |
1457 | { |
1458 | aBasicVertShader->Release (myGlContext.operator->()); |
265d4508 |
1459 | |
fc73a202 |
1460 | return SafeFailBack ("Failed to create FSAA shader program"); |
1461 | } |
1462 | |
1463 | if (!myPostFSAAProgram->AttachShader (myGlContext, aBasicVertShader) |
1464 | || !myPostFSAAProgram->AttachShader (myGlContext, myPostFSAAShader)) |
1465 | { |
1466 | aBasicVertShader->Release (myGlContext.operator->()); |
1467 | |
1468 | return SafeFailBack ("Failed to attach FSAA shader objects"); |
1469 | } |
1470 | |
7d3e64ef |
1471 | myPostFSAAProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex"); |
07039714 |
1472 | |
1473 | TCollection_AsciiString aLinkLog; |
1474 | |
fc73a202 |
1475 | if (!myPostFSAAProgram->Link (myGlContext)) |
1476 | { |
07039714 |
1477 | myPostFSAAProgram->FetchInfoLog (myGlContext, aLinkLog); |
1478 | |
1479 | return SafeFailBack (TCollection_ExtendedString ( |
1480 | "Failed to link FSAA shader program:\n") + aLinkLog); |
1481 | } |
1482 | else if (myGlContext->caps->glslWarnings) |
1483 | { |
1484 | myPostFSAAProgram->FetchInfoLog (myGlContext, aLinkLog); |
fc73a202 |
1485 | |
07039714 |
1486 | if (!aLinkLog.IsEmpty() && !aLinkLog.IsEqual ("No errors.\n")) |
fc73a202 |
1487 | { |
07039714 |
1488 | const TCollection_ExtendedString aMessage = TCollection_ExtendedString ( |
1489 | "FSAA shader program was linked with following warnings:\n") + aLinkLog; |
1490 | |
1491 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
1492 | GL_DEBUG_TYPE_PORTABILITY_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMessage); |
fc73a202 |
1493 | } |
fc73a202 |
1494 | } |
e276548b |
1495 | } |
fc73a202 |
1496 | } |
e276548b |
1497 | |
fc73a202 |
1498 | if (myComputeInitStatus == OpenGl_RT_NONE || aToRebuildShaders) |
1499 | { |
1500 | for (Standard_Integer anIndex = 0; anIndex < 2; ++anIndex) |
e276548b |
1501 | { |
fc73a202 |
1502 | Handle(OpenGl_ShaderProgram)& aShaderProgram = |
1503 | (anIndex == 0) ? myRaytraceProgram : myPostFSAAProgram; |
1504 | |
7d3e64ef |
1505 | myGlContext->BindProgram (aShaderProgram); |
fc73a202 |
1506 | |
1507 | aShaderProgram->SetSampler (myGlContext, |
1508 | "uSceneMinPointTexture", OpenGl_RT_SceneMinPointTexture); |
1509 | aShaderProgram->SetSampler (myGlContext, |
1510 | "uSceneMaxPointTexture", OpenGl_RT_SceneMaxPointTexture); |
1511 | aShaderProgram->SetSampler (myGlContext, |
1512 | "uSceneNodeInfoTexture", OpenGl_RT_SceneNodeInfoTexture); |
fc73a202 |
1513 | aShaderProgram->SetSampler (myGlContext, |
1514 | "uGeometryVertexTexture", OpenGl_RT_GeometryVertexTexture); |
1515 | aShaderProgram->SetSampler (myGlContext, |
1516 | "uGeometryNormalTexture", OpenGl_RT_GeometryNormalTexture); |
1517 | aShaderProgram->SetSampler (myGlContext, |
25ef750e |
1518 | "uGeometryTexCrdTexture", OpenGl_RT_GeometryTexCrdTexture); |
fc73a202 |
1519 | aShaderProgram->SetSampler (myGlContext, |
25ef750e |
1520 | "uGeometryTriangTexture", OpenGl_RT_GeometryTriangTexture); |
84c71f29 |
1521 | aShaderProgram->SetSampler (myGlContext, |
1522 | "uSceneTransformTexture", OpenGl_RT_SceneTransformTexture); |
1523 | aShaderProgram->SetSampler (myGlContext, |
1524 | "uEnvironmentMapTexture", OpenGl_RT_EnvironmentMapTexture); |
25ef750e |
1525 | aShaderProgram->SetSampler (myGlContext, |
1526 | "uRaytraceMaterialTexture", OpenGl_RT_RaytraceMaterialTexture); |
1527 | aShaderProgram->SetSampler (myGlContext, |
1528 | "uRaytraceLightSrcTexture", OpenGl_RT_RaytraceLightSrcTexture); |
fc73a202 |
1529 | |
a89742cf |
1530 | aShaderProgram->SetSampler (myGlContext, |
1531 | "uOpenGlColorTexture", OpenGl_RT_OpenGlColorTexture); |
1532 | aShaderProgram->SetSampler (myGlContext, |
1533 | "uOpenGlDepthTexture", OpenGl_RT_OpenGlDepthTexture); |
1534 | |
fc73a202 |
1535 | if (anIndex == 1) |
1536 | { |
1537 | aShaderProgram->SetSampler (myGlContext, |
1538 | "uFSAAInputTexture", OpenGl_RT_FSAAInputTexture); |
1539 | } |
265d4508 |
1540 | |
fc73a202 |
1541 | myUniformLocations[anIndex][OpenGl_RT_aPosition] = |
7d3e64ef |
1542 | aShaderProgram->GetAttributeLocation (myGlContext, "occVertex"); |
fc73a202 |
1543 | |
1544 | myUniformLocations[anIndex][OpenGl_RT_uOriginLB] = |
1545 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginLB"); |
1546 | myUniformLocations[anIndex][OpenGl_RT_uOriginRB] = |
1547 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginRB"); |
1548 | myUniformLocations[anIndex][OpenGl_RT_uOriginLT] = |
1549 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginLT"); |
1550 | myUniformLocations[anIndex][OpenGl_RT_uOriginRT] = |
1551 | aShaderProgram->GetUniformLocation (myGlContext, "uOriginRT"); |
1552 | myUniformLocations[anIndex][OpenGl_RT_uDirectLB] = |
1553 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectLB"); |
1554 | myUniformLocations[anIndex][OpenGl_RT_uDirectRB] = |
1555 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectRB"); |
1556 | myUniformLocations[anIndex][OpenGl_RT_uDirectLT] = |
1557 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectLT"); |
1558 | myUniformLocations[anIndex][OpenGl_RT_uDirectRT] = |
1559 | aShaderProgram->GetUniformLocation (myGlContext, "uDirectRT"); |
25ef750e |
1560 | myUniformLocations[anIndex][OpenGl_RT_uUnviewMat] = |
1561 | aShaderProgram->GetUniformLocation (myGlContext, "uUnviewMat"); |
fc73a202 |
1562 | |
1563 | myUniformLocations[anIndex][OpenGl_RT_uSceneRad] = |
1564 | aShaderProgram->GetUniformLocation (myGlContext, "uSceneRadius"); |
1565 | myUniformLocations[anIndex][OpenGl_RT_uSceneEps] = |
1566 | aShaderProgram->GetUniformLocation (myGlContext, "uSceneEpsilon"); |
25ef750e |
1567 | myUniformLocations[anIndex][OpenGl_RT_uLightCount] = |
1568 | aShaderProgram->GetUniformLocation (myGlContext, "uLightCount"); |
1569 | myUniformLocations[anIndex][OpenGl_RT_uLightAmbnt] = |
1570 | aShaderProgram->GetUniformLocation (myGlContext, "uGlobalAmbient"); |
fc73a202 |
1571 | |
1572 | myUniformLocations[anIndex][OpenGl_RT_uOffsetX] = |
1573 | aShaderProgram->GetUniformLocation (myGlContext, "uOffsetX"); |
1574 | myUniformLocations[anIndex][OpenGl_RT_uOffsetY] = |
1575 | aShaderProgram->GetUniformLocation (myGlContext, "uOffsetY"); |
1576 | myUniformLocations[anIndex][OpenGl_RT_uSamples] = |
1577 | aShaderProgram->GetUniformLocation (myGlContext, "uSamples"); |
312a4043 |
1578 | myUniformLocations[anIndex][OpenGl_RT_uWinSizeX] = |
1579 | aShaderProgram->GetUniformLocation (myGlContext, "uWinSizeX"); |
1580 | myUniformLocations[anIndex][OpenGl_RT_uWinSizeY] = |
1581 | aShaderProgram->GetUniformLocation (myGlContext, "uWinSizeY"); |
84c71f29 |
1582 | |
25ef750e |
1583 | myUniformLocations[anIndex][OpenGl_RT_uTextures] = |
1584 | aShaderProgram->GetUniformLocation (myGlContext, "uTextureSamplers"); |
1585 | |
1586 | myUniformLocations[anIndex][OpenGl_RT_uShadEnabled] = |
1587 | aShaderProgram->GetUniformLocation (myGlContext, "uShadowsEnable"); |
1588 | myUniformLocations[anIndex][OpenGl_RT_uReflEnabled] = |
1589 | aShaderProgram->GetUniformLocation (myGlContext, "uReflectionsEnable"); |
1590 | myUniformLocations[anIndex][OpenGl_RT_uEnvMapEnable] = |
84c71f29 |
1591 | aShaderProgram->GetUniformLocation (myGlContext, "uEnvironmentEnable"); |
fc73a202 |
1592 | } |
265d4508 |
1593 | |
7d3e64ef |
1594 | myGlContext->BindProgram (NULL); |
fc73a202 |
1595 | } |
265d4508 |
1596 | |
fc73a202 |
1597 | if (myComputeInitStatus != OpenGl_RT_NONE) |
1598 | { |
1599 | return myComputeInitStatus == OpenGl_RT_INIT; |
1600 | } |
265d4508 |
1601 | |
fc73a202 |
1602 | if (myRaytraceFBO1.IsNull()) |
1603 | { |
1604 | myRaytraceFBO1 = new OpenGl_FrameBuffer; |
1605 | } |
265d4508 |
1606 | |
fc73a202 |
1607 | if (myRaytraceFBO2.IsNull()) |
1608 | { |
1609 | myRaytraceFBO2 = new OpenGl_FrameBuffer; |
1610 | } |
265d4508 |
1611 | |
fc73a202 |
1612 | const GLfloat aVertices[] = { -1.f, -1.f, 0.f, |
1613 | -1.f, 1.f, 0.f, |
1614 | 1.f, 1.f, 0.f, |
1615 | 1.f, 1.f, 0.f, |
1616 | 1.f, -1.f, 0.f, |
1617 | -1.f, -1.f, 0.f }; |
265d4508 |
1618 | |
fc73a202 |
1619 | myRaytraceScreenQuad.Init (myGlContext, 3, 6, aVertices); |
265d4508 |
1620 | |
fc73a202 |
1621 | myComputeInitStatus = OpenGl_RT_INIT; // initialized in normal way |
ca3c13d1 |
1622 | |
fc73a202 |
1623 | return Standard_True; |
1624 | } |
265d4508 |
1625 | |
fc73a202 |
1626 | // ======================================================================= |
1627 | // function : NullifyResource |
1628 | // purpose : |
1629 | // ======================================================================= |
1630 | inline void NullifyResource (const Handle(OpenGl_Context)& theContext, |
1631 | Handle(OpenGl_Resource)& theResource) |
1632 | { |
1633 | if (!theResource.IsNull()) |
1634 | { |
1635 | theResource->Release (theContext.operator->()); |
1636 | theResource.Nullify(); |
1637 | } |
1638 | } |
265d4508 |
1639 | |
fc73a202 |
1640 | // ======================================================================= |
1641 | // function : ReleaseRaytraceResources |
1642 | // purpose : Releases OpenGL/GLSL shader programs |
1643 | // ======================================================================= |
1644 | void OpenGl_Workspace::ReleaseRaytraceResources() |
1645 | { |
a89742cf |
1646 | NullifyResource (myGlContext, myOpenGlFBO); |
fc73a202 |
1647 | NullifyResource (myGlContext, myRaytraceFBO1); |
1648 | NullifyResource (myGlContext, myRaytraceFBO2); |
265d4508 |
1649 | |
fc73a202 |
1650 | NullifyResource (myGlContext, myRaytraceShader); |
1651 | NullifyResource (myGlContext, myPostFSAAShader); |
265d4508 |
1652 | |
fc73a202 |
1653 | NullifyResource (myGlContext, myRaytraceProgram); |
1654 | NullifyResource (myGlContext, myPostFSAAProgram); |
265d4508 |
1655 | |
fc73a202 |
1656 | NullifyResource (myGlContext, mySceneNodeInfoTexture); |
1657 | NullifyResource (myGlContext, mySceneMinPointTexture); |
1658 | NullifyResource (myGlContext, mySceneMaxPointTexture); |
265d4508 |
1659 | |
fc73a202 |
1660 | NullifyResource (myGlContext, myGeometryVertexTexture); |
1661 | NullifyResource (myGlContext, myGeometryNormalTexture); |
25ef750e |
1662 | NullifyResource (myGlContext, myGeometryTexCrdTexture); |
fc73a202 |
1663 | NullifyResource (myGlContext, myGeometryTriangTexture); |
bc8c79bb |
1664 | NullifyResource (myGlContext, mySceneTransformTexture); |
265d4508 |
1665 | |
fc73a202 |
1666 | NullifyResource (myGlContext, myRaytraceLightSrcTexture); |
1667 | NullifyResource (myGlContext, myRaytraceMaterialTexture); |
265d4508 |
1668 | |
fc73a202 |
1669 | if (myRaytraceScreenQuad.IsValid()) |
1670 | myRaytraceScreenQuad.Release (myGlContext.operator->()); |
1671 | } |
265d4508 |
1672 | |
fc73a202 |
1673 | // ======================================================================= |
1674 | // function : UploadRaytraceData |
1675 | // purpose : Uploads ray-trace data to the GPU |
1676 | // ======================================================================= |
1677 | Standard_Boolean OpenGl_Workspace::UploadRaytraceData() |
1678 | { |
1679 | if (!myGlContext->IsGlGreaterEqual (3, 1)) |
1680 | { |
265d4508 |
1681 | #ifdef RAY_TRACE_PRINT_INFO |
fc73a202 |
1682 | std::cout << "Error: OpenGL version is less than 3.1" << std::endl; |
265d4508 |
1683 | #endif |
fc73a202 |
1684 | return Standard_False; |
e276548b |
1685 | } |
1686 | |
25ef750e |
1687 | ///////////////////////////////////////////////////////////////////////////// |
1688 | // Prepare OpenGL textures |
1689 | |
1690 | if (myGlContext->arbTexBindless != NULL) |
1691 | { |
1692 | // If OpenGL driver supports bindless textures we need |
1693 | // to get unique 64- bit handles for using on the GPU |
1694 | if (!myRaytraceGeometry.UpdateTextureHandles (myGlContext)) |
1695 | { |
1696 | #ifdef RAY_TRACE_PRINT_INFO |
1697 | std::cout << "Error: Failed to get OpenGL texture handles" << std::endl; |
1698 | #endif |
1699 | return Standard_False; |
1700 | } |
1701 | } |
1702 | |
265d4508 |
1703 | ///////////////////////////////////////////////////////////////////////////// |
e2da917a |
1704 | // Create OpenGL BVH buffers |
265d4508 |
1705 | |
e2da917a |
1706 | if (mySceneNodeInfoTexture.IsNull()) // create scene BVH buffers |
e276548b |
1707 | { |
e2da917a |
1708 | mySceneNodeInfoTexture = new OpenGl_TextureBufferArb; |
1709 | mySceneMinPointTexture = new OpenGl_TextureBufferArb; |
1710 | mySceneMaxPointTexture = new OpenGl_TextureBufferArb; |
84c71f29 |
1711 | mySceneTransformTexture = new OpenGl_TextureBufferArb; |
265d4508 |
1712 | |
e2da917a |
1713 | if (!mySceneNodeInfoTexture->Create (myGlContext) |
1714 | || !mySceneMinPointTexture->Create (myGlContext) |
1715 | || !mySceneMaxPointTexture->Create (myGlContext) |
84c71f29 |
1716 | || !mySceneTransformTexture->Create (myGlContext)) |
e276548b |
1717 | { |
fc73a202 |
1718 | #ifdef RAY_TRACE_PRINT_INFO |
e2da917a |
1719 | std::cout << "Error: Failed to create scene BVH buffers" << std::endl; |
fc73a202 |
1720 | #endif |
1721 | return Standard_False; |
1722 | } |
1723 | } |
5322131b |
1724 | |
e2da917a |
1725 | if (myGeometryVertexTexture.IsNull()) // create geometry buffers |
265d4508 |
1726 | { |
fc73a202 |
1727 | myGeometryVertexTexture = new OpenGl_TextureBufferArb; |
1728 | myGeometryNormalTexture = new OpenGl_TextureBufferArb; |
25ef750e |
1729 | myGeometryTexCrdTexture = new OpenGl_TextureBufferArb; |
fc73a202 |
1730 | myGeometryTriangTexture = new OpenGl_TextureBufferArb; |
e276548b |
1731 | |
fc73a202 |
1732 | if (!myGeometryVertexTexture->Create (myGlContext) |
25ef750e |
1733 | || !myGeometryNormalTexture->Create (myGlContext) |
1734 | || !myGeometryTexCrdTexture->Create (myGlContext) |
1735 | || !myGeometryTriangTexture->Create (myGlContext)) |
fc73a202 |
1736 | { |
1737 | #ifdef RAY_TRACE_PRINT_INFO |
1738 | std::cout << "Error: Failed to create buffers for triangulation data" << std::endl; |
1739 | #endif |
1740 | return Standard_False; |
1741 | } |
265d4508 |
1742 | } |
5322131b |
1743 | |
e2da917a |
1744 | if (myRaytraceMaterialTexture.IsNull()) // create material buffer |
fc73a202 |
1745 | { |
1746 | myRaytraceMaterialTexture = new OpenGl_TextureBufferArb; |
e276548b |
1747 | |
fc73a202 |
1748 | if (!myRaytraceMaterialTexture->Create (myGlContext)) |
1749 | { |
1750 | #ifdef RAY_TRACE_PRINT_INFO |
1751 | std::cout << "Error: Failed to create buffers for material data" << std::endl; |
e276548b |
1752 | #endif |
fc73a202 |
1753 | return Standard_False; |
1754 | } |
1755 | } |
e2da917a |
1756 | |
84c71f29 |
1757 | ///////////////////////////////////////////////////////////////////////////// |
1758 | // Write transform buffer |
1759 | |
1760 | BVH_Mat4f* aNodeTransforms = new BVH_Mat4f[myRaytraceGeometry.Size()]; |
84c71f29 |
1761 | |
e2da917a |
1762 | bool aResult = true; |
1763 | |
84c71f29 |
1764 | for (Standard_Integer anElemIndex = 0; anElemIndex < myRaytraceGeometry.Size(); ++anElemIndex) |
1765 | { |
1766 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
1767 | myRaytraceGeometry.Objects().ChangeValue (anElemIndex).operator->()); |
1768 | |
1769 | const BVH_Transform<Standard_ShortReal, 4>* aTransform = |
1770 | dynamic_cast<const BVH_Transform<Standard_ShortReal, 4>* > (aTriangleSet->Properties().operator->()); |
1771 | |
1772 | Standard_ASSERT_RETURN (aTransform != NULL, |
1773 | "OpenGl_TriangleSet does not contain transform", Standard_False); |
1774 | |
1775 | aNodeTransforms[anElemIndex] = aTransform->Inversed(); |
84c71f29 |
1776 | } |
1777 | |
1778 | aResult &= mySceneTransformTexture->Init (myGlContext, 4, |
1779 | myRaytraceGeometry.Size() * 4, reinterpret_cast<const GLfloat*> (aNodeTransforms)); |
1780 | |
25ef750e |
1781 | delete [] aNodeTransforms; |
84c71f29 |
1782 | |
1783 | ///////////////////////////////////////////////////////////////////////////// |
bc8c79bb |
1784 | // Write geometry and bottom-level BVH buffers |
84c71f29 |
1785 | |
fc73a202 |
1786 | Standard_Size aTotalVerticesNb = 0; |
1787 | Standard_Size aTotalElementsNb = 0; |
1788 | Standard_Size aTotalBVHNodesNb = 0; |
265d4508 |
1789 | |
fc73a202 |
1790 | for (Standard_Integer anElemIndex = 0; anElemIndex < myRaytraceGeometry.Size(); ++anElemIndex) |
1791 | { |
1792 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
1793 | myRaytraceGeometry.Objects().ChangeValue (anElemIndex).operator->()); |
265d4508 |
1794 | |
fc73a202 |
1795 | Standard_ASSERT_RETURN (aTriangleSet != NULL, |
1796 | "Error: Failed to get triangulation of OpenGL element", Standard_False); |
1797 | |
1798 | aTotalVerticesNb += aTriangleSet->Vertices.size(); |
1799 | aTotalElementsNb += aTriangleSet->Elements.size(); |
e276548b |
1800 | |
fc73a202 |
1801 | Standard_ASSERT_RETURN (!aTriangleSet->BVH().IsNull(), |
1802 | "Error: Failed to get bottom-level BVH of OpenGL element", Standard_False); |
265d4508 |
1803 | |
fc73a202 |
1804 | aTotalBVHNodesNb += aTriangleSet->BVH()->NodeInfoBuffer().size(); |
1805 | } |
e276548b |
1806 | |
e2da917a |
1807 | aTotalBVHNodesNb += myRaytraceGeometry.BVH()->NodeInfoBuffer().size(); |
1808 | |
fc73a202 |
1809 | if (aTotalBVHNodesNb != 0) |
e276548b |
1810 | { |
e2da917a |
1811 | aResult &= mySceneNodeInfoTexture->Init ( |
25ef750e |
1812 | myGlContext, 4, GLsizei (aTotalBVHNodesNb), static_cast<const GLuint*> (NULL)); |
e2da917a |
1813 | aResult &= mySceneMinPointTexture->Init ( |
25ef750e |
1814 | myGlContext, 3, GLsizei (aTotalBVHNodesNb), static_cast<const GLfloat*> (NULL)); |
e2da917a |
1815 | aResult &= mySceneMaxPointTexture->Init ( |
25ef750e |
1816 | myGlContext, 3, GLsizei (aTotalBVHNodesNb), static_cast<const GLfloat*> (NULL)); |
fc73a202 |
1817 | } |
265d4508 |
1818 | |
fc73a202 |
1819 | if (!aResult) |
1820 | { |
1821 | #ifdef RAY_TRACE_PRINT_INFO |
1822 | std::cout << "Error: Failed to upload buffers for bottom-level scene BVH" << std::endl; |
1823 | #endif |
1824 | return Standard_False; |
1825 | } |
e276548b |
1826 | |
fc73a202 |
1827 | if (aTotalElementsNb != 0) |
1828 | { |
25ef750e |
1829 | aResult &= myGeometryTriangTexture->Init ( |
1830 | myGlContext, 4, GLsizei (aTotalElementsNb), static_cast<const GLuint*> (NULL)); |
fc73a202 |
1831 | } |
265d4508 |
1832 | |
fc73a202 |
1833 | if (aTotalVerticesNb != 0) |
1834 | { |
25ef750e |
1835 | aResult &= myGeometryVertexTexture->Init ( |
1836 | myGlContext, 3, GLsizei (aTotalVerticesNb), static_cast<const GLfloat*> (NULL)); |
1837 | aResult &= myGeometryNormalTexture->Init ( |
1838 | myGlContext, 3, GLsizei (aTotalVerticesNb), static_cast<const GLfloat*> (NULL)); |
1839 | aResult &= myGeometryTexCrdTexture->Init ( |
1840 | myGlContext, 2, GLsizei (aTotalVerticesNb), static_cast<const GLfloat*> (NULL)); |
fc73a202 |
1841 | } |
265d4508 |
1842 | |
fc73a202 |
1843 | if (!aResult) |
1844 | { |
1845 | #ifdef RAY_TRACE_PRINT_INFO |
1846 | std::cout << "Error: Failed to upload buffers for scene geometry" << std::endl; |
1847 | #endif |
1848 | return Standard_False; |
1849 | } |
265d4508 |
1850 | |
e2da917a |
1851 | const NCollection_Handle<BVH_Tree<Standard_ShortReal, 3> >& aBVH = myRaytraceGeometry.BVH(); |
1e99558f |
1852 | const Standard_Integer aBvhLength = aBVH->Length(); |
1853 | if (aBvhLength > 0) |
1854 | { |
1855 | aResult &= mySceneNodeInfoTexture->SubData (myGlContext, 0, aBVH->Length(), |
1856 | reinterpret_cast<const GLuint*> (&aBVH->NodeInfoBuffer().front())); |
1857 | aResult &= mySceneMinPointTexture->SubData (myGlContext, 0, aBVH->Length(), |
1858 | reinterpret_cast<const GLfloat*> (&aBVH->MinPointBuffer().front())); |
1859 | aResult &= mySceneMaxPointTexture->SubData (myGlContext, 0, aBVH->Length(), |
1860 | reinterpret_cast<const GLfloat*> (&aBVH->MaxPointBuffer().front())); |
1861 | } |
e2da917a |
1862 | |
fc73a202 |
1863 | for (Standard_Integer aNodeIdx = 0; aNodeIdx < aBVH->Length(); ++aNodeIdx) |
1864 | { |
1865 | if (!aBVH->IsOuter (aNodeIdx)) |
1866 | continue; |
265d4508 |
1867 | |
fc73a202 |
1868 | OpenGl_TriangleSet* aTriangleSet = myRaytraceGeometry.TriangleSet (aNodeIdx); |
e276548b |
1869 | |
fc73a202 |
1870 | Standard_ASSERT_RETURN (aTriangleSet != NULL, |
1871 | "Error: Failed to get triangulation of OpenGL element", Standard_False); |
e276548b |
1872 | |
e2da917a |
1873 | Standard_Integer aBVHOffset = myRaytraceGeometry.AccelerationOffset (aNodeIdx); |
e276548b |
1874 | |
fc73a202 |
1875 | Standard_ASSERT_RETURN (aBVHOffset != OpenGl_RaytraceGeometry::INVALID_OFFSET, |
1876 | "Error: Failed to get offset for bottom-level BVH", Standard_False); |
e276548b |
1877 | |
e2da917a |
1878 | const Standard_Integer aBvhBuffersSize = aTriangleSet->BVH()->Length(); |
265d4508 |
1879 | |
e2da917a |
1880 | if (aBvhBuffersSize != 0) |
fc73a202 |
1881 | { |
e2da917a |
1882 | aResult &= mySceneNodeInfoTexture->SubData (myGlContext, aBVHOffset, aBvhBuffersSize, |
5cff985a |
1883 | reinterpret_cast<const GLuint*> (&aTriangleSet->BVH()->NodeInfoBuffer().front())); |
e2da917a |
1884 | aResult &= mySceneMinPointTexture->SubData (myGlContext, aBVHOffset, aBvhBuffersSize, |
5cff985a |
1885 | reinterpret_cast<const GLfloat*> (&aTriangleSet->BVH()->MinPointBuffer().front())); |
e2da917a |
1886 | aResult &= mySceneMaxPointTexture->SubData (myGlContext, aBVHOffset, aBvhBuffersSize, |
5cff985a |
1887 | reinterpret_cast<const GLfloat*> (&aTriangleSet->BVH()->MaxPointBuffer().front())); |
fc73a202 |
1888 | if (!aResult) |
e276548b |
1889 | { |
fc73a202 |
1890 | #ifdef RAY_TRACE_PRINT_INFO |
1891 | std::cout << "Error: Failed to upload buffers for bottom-level scene BVHs" << std::endl; |
1892 | #endif |
e276548b |
1893 | return Standard_False; |
1894 | } |
1895 | } |
1896 | |
fc73a202 |
1897 | const Standard_Integer aVerticesOffset = myRaytraceGeometry.VerticesOffset (aNodeIdx); |
265d4508 |
1898 | |
fc73a202 |
1899 | Standard_ASSERT_RETURN (aVerticesOffset != OpenGl_RaytraceGeometry::INVALID_OFFSET, |
1900 | "Error: Failed to get offset for triangulation vertices of OpenGL element", Standard_False); |
265d4508 |
1901 | |
fc73a202 |
1902 | if (!aTriangleSet->Vertices.empty()) |
1903 | { |
5cff985a |
1904 | aResult &= myGeometryNormalTexture->SubData (myGlContext, aVerticesOffset, GLsizei (aTriangleSet->Normals.size()), |
1905 | reinterpret_cast<const GLfloat*> (&aTriangleSet->Normals.front())); |
25ef750e |
1906 | aResult &= myGeometryTexCrdTexture->SubData (myGlContext, aVerticesOffset, GLsizei (aTriangleSet->TexCrds.size()), |
1907 | reinterpret_cast<const GLfloat*> (&aTriangleSet->TexCrds.front())); |
5cff985a |
1908 | aResult &= myGeometryVertexTexture->SubData (myGlContext, aVerticesOffset, GLsizei (aTriangleSet->Vertices.size()), |
1909 | reinterpret_cast<const GLfloat*> (&aTriangleSet->Vertices.front())); |
fc73a202 |
1910 | } |
e276548b |
1911 | |
fc73a202 |
1912 | const Standard_Integer anElementsOffset = myRaytraceGeometry.ElementsOffset (aNodeIdx); |
265d4508 |
1913 | |
fc73a202 |
1914 | Standard_ASSERT_RETURN (anElementsOffset != OpenGl_RaytraceGeometry::INVALID_OFFSET, |
1915 | "Error: Failed to get offset for triangulation elements of OpenGL element", Standard_False); |
e276548b |
1916 | |
fc73a202 |
1917 | if (!aTriangleSet->Elements.empty()) |
e276548b |
1918 | { |
5cff985a |
1919 | aResult &= myGeometryTriangTexture->SubData (myGlContext, anElementsOffset, GLsizei (aTriangleSet->Elements.size()), |
1920 | reinterpret_cast<const GLuint*> (&aTriangleSet->Elements.front())); |
e276548b |
1921 | } |
265d4508 |
1922 | |
fc73a202 |
1923 | if (!aResult) |
1924 | { |
1925 | #ifdef RAY_TRACE_PRINT_INFO |
1926 | std::cout << "Error: Failed to upload triangulation buffers for OpenGL element" << std::endl; |
e276548b |
1927 | #endif |
fc73a202 |
1928 | return Standard_False; |
1929 | } |
e276548b |
1930 | } |
e276548b |
1931 | |
25ef750e |
1932 | ///////////////////////////////////////////////////////////////////////////// |
1933 | // Write material buffer |
1934 | |
fc73a202 |
1935 | if (myRaytraceGeometry.Materials.size() != 0) |
1936 | { |
25ef750e |
1937 | aResult &= myRaytraceMaterialTexture->Init (myGlContext, 4, |
1938 | GLsizei (myRaytraceGeometry.Materials.size() * 11), myRaytraceGeometry.Materials.front().Packed()); |
1939 | |
fc73a202 |
1940 | if (!aResult) |
1941 | { |
1942 | #ifdef RAY_TRACE_PRINT_INFO |
1943 | std::cout << "Error: Failed to upload material buffer" << std::endl; |
1944 | #endif |
1945 | return Standard_False; |
1946 | } |
1947 | } |
e276548b |
1948 | |
fc73a202 |
1949 | myIsRaytraceDataValid = myRaytraceGeometry.Objects().Size() != 0; |
e276548b |
1950 | |
fc73a202 |
1951 | #ifdef RAY_TRACE_PRINT_INFO |
e276548b |
1952 | |
fc73a202 |
1953 | Standard_ShortReal aMemUsed = 0.f; |
e276548b |
1954 | |
fc73a202 |
1955 | for (Standard_Integer anElemIdx = 0; anElemIdx < myRaytraceGeometry.Size(); ++anElemIdx) |
1956 | { |
1957 | OpenGl_TriangleSet* aTriangleSet = dynamic_cast<OpenGl_TriangleSet*> ( |
1958 | myRaytraceGeometry.Objects().ChangeValue (anElemIdx).operator->()); |
e276548b |
1959 | |
fc73a202 |
1960 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1961 | aTriangleSet->Vertices.size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1962 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1963 | aTriangleSet->Normals.size() * sizeof (BVH_Vec3f)); |
1964 | aMemUsed += static_cast<Standard_ShortReal> ( |
1965 | aTriangleSet->TexCrds.size() * sizeof (BVH_Vec2f)); |
fc73a202 |
1966 | aMemUsed += static_cast<Standard_ShortReal> ( |
1967 | aTriangleSet->Elements.size() * sizeof (BVH_Vec4i)); |
e276548b |
1968 | |
fc73a202 |
1969 | aMemUsed += static_cast<Standard_ShortReal> ( |
1970 | aTriangleSet->BVH()->NodeInfoBuffer().size() * sizeof (BVH_Vec4i)); |
1971 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1972 | aTriangleSet->BVH()->MinPointBuffer().size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1973 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1974 | aTriangleSet->BVH()->MaxPointBuffer().size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1975 | } |
e276548b |
1976 | |
fc73a202 |
1977 | aMemUsed += static_cast<Standard_ShortReal> ( |
1978 | myRaytraceGeometry.BVH()->NodeInfoBuffer().size() * sizeof (BVH_Vec4i)); |
1979 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1980 | myRaytraceGeometry.BVH()->MinPointBuffer().size() * sizeof (BVH_Vec3f)); |
fc73a202 |
1981 | aMemUsed += static_cast<Standard_ShortReal> ( |
25ef750e |
1982 | myRaytraceGeometry.BVH()->MaxPointBuffer().size() * sizeof (BVH_Vec3f)); |
e276548b |
1983 | |
fc73a202 |
1984 | std::cout << "GPU Memory Used (MB): ~" << aMemUsed / 1048576 << std::endl; |
e276548b |
1985 | |
fc73a202 |
1986 | #endif |
e276548b |
1987 | |
fc73a202 |
1988 | return aResult; |
1989 | } |
e276548b |
1990 | |
fc73a202 |
1991 | // ======================================================================= |
1992 | // function : ResizeRaytraceBuffers |
1993 | // purpose : Resizes OpenGL frame buffers |
1994 | // ======================================================================= |
1995 | Standard_Boolean OpenGl_Workspace::ResizeRaytraceBuffers (const Standard_Integer theSizeX, |
1996 | const Standard_Integer theSizeY) |
1997 | { |
1998 | if (myRaytraceFBO1->GetVPSizeX() != theSizeX |
1999 | || myRaytraceFBO1->GetVPSizeY() != theSizeY) |
2000 | { |
2001 | myRaytraceFBO1->Init (myGlContext, theSizeX, theSizeY); |
2002 | myRaytraceFBO2->Init (myGlContext, theSizeX, theSizeY); |
2003 | } |
e276548b |
2004 | |
fc73a202 |
2005 | return Standard_True; |
e276548b |
2006 | } |
2007 | |
2008 | // ======================================================================= |
fc73a202 |
2009 | // function : UpdateCamera |
2010 | // purpose : Generates viewing rays for corners of screen quad |
e276548b |
2011 | // ======================================================================= |
25ef750e |
2012 | void OpenGl_Workspace::UpdateCamera (const OpenGl_Mat4& theOrientation, |
2013 | const OpenGl_Mat4& theViewMapping, |
2014 | OpenGl_Vec3 theOrigins[4], |
2015 | OpenGl_Vec3 theDirects[4], |
2016 | OpenGl_Mat4& theInvModelProj) |
e276548b |
2017 | { |
bc8c79bb |
2018 | // compute inverse model-view-projection matrix |
a89742cf |
2019 | (theViewMapping * theOrientation).Inverted (theInvModelProj); |
fc73a202 |
2020 | |
68333c8f |
2021 | Standard_Integer aOriginIndex = 0; |
2022 | Standard_Integer aDirectIndex = 0; |
e276548b |
2023 | |
fc73a202 |
2024 | for (Standard_Integer aY = -1; aY <= 1; aY += 2) |
e276548b |
2025 | { |
fc73a202 |
2026 | for (Standard_Integer aX = -1; aX <= 1; aX += 2) |
e276548b |
2027 | { |
25ef750e |
2028 | OpenGl_Vec4 aOrigin (GLfloat(aX), |
2029 | GLfloat(aY), |
2030 | -1.0f, |
2031 | 1.0f); |
fc73a202 |
2032 | |
a89742cf |
2033 | aOrigin = theInvModelProj * aOrigin; |
e276548b |
2034 | |
b5ac8292 |
2035 | aOrigin.x() = aOrigin.x() / aOrigin.w(); |
2036 | aOrigin.y() = aOrigin.y() / aOrigin.w(); |
2037 | aOrigin.z() = aOrigin.z() / aOrigin.w(); |
e276548b |
2038 | |
25ef750e |
2039 | OpenGl_Vec4 aDirect (GLfloat(aX), |
2040 | GLfloat(aY), |
2041 | 1.0f, |
2042 | 1.0f); |
fc73a202 |
2043 | |
a89742cf |
2044 | aDirect = theInvModelProj * aDirect; |
e276548b |
2045 | |
b5ac8292 |
2046 | aDirect.x() = aDirect.x() / aDirect.w(); |
2047 | aDirect.y() = aDirect.y() / aDirect.w(); |
2048 | aDirect.z() = aDirect.z() / aDirect.w(); |
b5ac8292 |
2049 | |
2050 | aDirect = aDirect - aOrigin; |
e276548b |
2051 | |
fc73a202 |
2052 | GLdouble aInvLen = 1.0 / sqrt (aDirect.x() * aDirect.x() + |
e276548b |
2053 | aDirect.y() * aDirect.y() + |
2054 | aDirect.z() * aDirect.z()); |
2055 | |
fc73a202 |
2056 | theOrigins[aOriginIndex++] = OpenGl_Vec3 (static_cast<GLfloat> (aOrigin.x()), |
2057 | static_cast<GLfloat> (aOrigin.y()), |
2058 | static_cast<GLfloat> (aOrigin.z())); |
2059 | |
2060 | theDirects[aDirectIndex++] = OpenGl_Vec3 (static_cast<GLfloat> (aDirect.x() * aInvLen), |
2061 | static_cast<GLfloat> (aDirect.y() * aInvLen), |
2062 | static_cast<GLfloat> (aDirect.z() * aInvLen)); |
2063 | } |
2064 | } |
2065 | } |
2066 | |
25ef750e |
2067 | // ======================================================================= |
2068 | // function : SetUniformState |
2069 | // purpose : Sets uniform state for the given ray-tracing shader program |
2070 | // ======================================================================= |
2071 | Standard_Boolean OpenGl_Workspace::SetUniformState (const Graphic3d_CView& theCView, |
312a4043 |
2072 | const Standard_Integer theSizeX, |
2073 | const Standard_Integer theSizeY, |
25ef750e |
2074 | const OpenGl_Vec3* theOrigins, |
2075 | const OpenGl_Vec3* theDirects, |
2076 | const OpenGl_Mat4& theUnviewMat, |
2077 | const Standard_Integer theProgramIndex, |
2078 | Handle(OpenGl_ShaderProgram)& theRaytraceProgram) |
2079 | { |
2080 | if (theRaytraceProgram.IsNull()) |
2081 | { |
2082 | return Standard_False; |
2083 | } |
2084 | |
2085 | Standard_Integer aLightSourceBufferSize = |
2086 | static_cast<Standard_Integer> (myRaytraceGeometry.Sources.size()); |
2087 | |
2088 | Standard_Boolean aResult = Standard_True; |
2089 | |
2090 | // Set camera state |
2091 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2092 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginLB], theOrigins[0]); |
2093 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2094 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginRB], theOrigins[1]); |
2095 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2096 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginLT], theOrigins[2]); |
2097 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2098 | myUniformLocations[theProgramIndex][OpenGl_RT_uOriginRT], theOrigins[3]); |
2099 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2100 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectLB], theDirects[0]); |
2101 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2102 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectRB], theDirects[1]); |
2103 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2104 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectLT], theDirects[2]); |
2105 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2106 | myUniformLocations[theProgramIndex][OpenGl_RT_uDirectRT], theDirects[3]); |
2107 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2108 | myUniformLocations[theProgramIndex][OpenGl_RT_uUnviewMat], theUnviewMat); |
2109 | |
312a4043 |
2110 | // Set window size |
2111 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2112 | myUniformLocations[theProgramIndex][OpenGl_RT_uWinSizeX], theSizeX); |
2113 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2114 | myUniformLocations[theProgramIndex][OpenGl_RT_uWinSizeY], theSizeY); |
2115 | |
25ef750e |
2116 | // Set scene parameters |
2117 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2118 | myUniformLocations[theProgramIndex][OpenGl_RT_uSceneRad], myRaytraceSceneRadius); |
2119 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2120 | myUniformLocations[theProgramIndex][OpenGl_RT_uSceneEps], myRaytraceSceneEpsilon); |
2121 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2122 | myUniformLocations[theProgramIndex][OpenGl_RT_uLightCount], aLightSourceBufferSize); |
2123 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2124 | myUniformLocations[theProgramIndex][OpenGl_RT_uLightAmbnt], myRaytraceGeometry.Ambient); |
2125 | |
2126 | // Set rendering options |
2127 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2128 | myUniformLocations[theProgramIndex][OpenGl_RT_uShadEnabled], theCView.RenderParams.IsShadowEnabled ? 1 : 0); |
2129 | aResult &= theRaytraceProgram->SetUniform (myGlContext, |
2130 | myUniformLocations[theProgramIndex][OpenGl_RT_uReflEnabled], theCView.RenderParams.IsReflectionEnabled ? 1 : 0); |
2131 | |
2132 | // Set array of 64-bit texture handles |
2133 | if (myGlContext->arbTexBindless != NULL && myRaytraceGeometry.HasTextures()) |
2134 | { |
2135 | aResult &= theRaytraceProgram->SetUniform (myGlContext, "uTextureSamplers", |
2136 | static_cast<GLsizei> (myRaytraceGeometry.TextureHandles().size()), &myRaytraceGeometry.TextureHandles()[0]); |
2137 | } |
2138 | |
2139 | if (!aResult) |
2140 | { |
2141 | #ifdef RAY_TRACE_PRINT_INFO |
312a4043 |
2142 | std::cout << "Info: Not all uniforms were detected (for program " << theProgramIndex << ")" << std::endl; |
25ef750e |
2143 | #endif |
2144 | } |
2145 | |
2146 | return aResult; |
2147 | } |
2148 | |
fc73a202 |
2149 | // ======================================================================= |
2150 | // function : RunRaytraceShaders |
2151 | // purpose : Runs ray-tracing shader programs |
2152 | // ======================================================================= |
2153 | Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& theCView, |
2154 | const Standard_Integer theSizeX, |
2155 | const Standard_Integer theSizeY, |
2156 | const OpenGl_Vec3 theOrigins[4], |
2157 | const OpenGl_Vec3 theDirects[4], |
25ef750e |
2158 | const OpenGl_Mat4& theUnviewMat, |
fc73a202 |
2159 | OpenGl_FrameBuffer* theFrameBuffer) |
2160 | { |
2161 | mySceneMinPointTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMinPointTexture); |
2162 | mySceneMaxPointTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMaxPointTexture); |
2163 | mySceneNodeInfoTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneNodeInfoTexture); |
fc73a202 |
2164 | myGeometryVertexTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryVertexTexture); |
2165 | myGeometryNormalTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryNormalTexture); |
25ef750e |
2166 | myGeometryTexCrdTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTexCrdTexture); |
fc73a202 |
2167 | myGeometryTriangTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTriangTexture); |
a89742cf |
2168 | mySceneTransformTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneTransformTexture); |
fc73a202 |
2169 | myRaytraceMaterialTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceMaterialTexture); |
2170 | myRaytraceLightSrcTexture->BindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceLightSrcTexture); |
a89742cf |
2171 | |
2172 | myOpenGlFBO->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); |
2173 | myOpenGlFBO->DepthStencilTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); |
fc73a202 |
2174 | |
bc8c79bb |
2175 | if (theCView.RenderParams.IsAntialiasingEnabled) // render source image to FBO |
fc73a202 |
2176 | { |
2177 | myRaytraceFBO1->BindBuffer (myGlContext); |
2178 | |
2179 | glDisable (GL_BLEND); |
2180 | } |
2181 | |
7d3e64ef |
2182 | myGlContext->BindProgram (myRaytraceProgram); |
fc73a202 |
2183 | |
25ef750e |
2184 | SetUniformState (theCView, |
312a4043 |
2185 | theSizeX, |
2186 | theSizeY, |
25ef750e |
2187 | theOrigins, |
2188 | theDirects, |
2189 | theUnviewMat, |
2190 | 0, // ID of RT program |
2191 | myRaytraceProgram); |
fc73a202 |
2192 | |
7d3e64ef |
2193 | myGlContext->core20fwd->glEnableVertexAttribArray (Graphic3d_TOA_POS); |
fc73a202 |
2194 | { |
7d3e64ef |
2195 | myGlContext->core20fwd->glVertexAttribPointer (Graphic3d_TOA_POS, 3, GL_FLOAT, GL_FALSE, 0, NULL); |
fc73a202 |
2196 | myGlContext->core15fwd->glDrawArrays (GL_TRIANGLES, 0, 6); |
2197 | } |
7d3e64ef |
2198 | myGlContext->core20fwd->glDisableVertexAttribArray (Graphic3d_TOA_POS); |
25ef750e |
2199 | |
bc8c79bb |
2200 | if (!theCView.RenderParams.IsAntialiasingEnabled) |
fc73a202 |
2201 | { |
7d3e64ef |
2202 | myGlContext->BindProgram (NULL); |
fc73a202 |
2203 | |
a89742cf |
2204 | myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); |
2205 | myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); |
e2da917a |
2206 | mySceneMinPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMinPointTexture); |
2207 | mySceneMaxPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMaxPointTexture); |
2208 | mySceneNodeInfoTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneNodeInfoTexture); |
a89742cf |
2209 | myGeometryVertexTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryVertexTexture); |
2210 | myGeometryNormalTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryNormalTexture); |
25ef750e |
2211 | myGeometryTexCrdTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTexCrdTexture); |
a89742cf |
2212 | myGeometryTriangTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTriangTexture); |
25ef750e |
2213 | mySceneTransformTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneTransformTexture); |
a89742cf |
2214 | myRaytraceMaterialTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceMaterialTexture); |
2215 | myRaytraceLightSrcTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceLightSrcTexture); |
a89742cf |
2216 | |
2217 | myGlContext->core15fwd->glActiveTexture (GL_TEXTURE0); |
2218 | |
fc73a202 |
2219 | return Standard_True; |
2220 | } |
2221 | |
945c3529 |
2222 | myRaytraceFBO1->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); |
fc73a202 |
2223 | |
7d3e64ef |
2224 | myGlContext->BindProgram (myPostFSAAProgram); |
fc73a202 |
2225 | |
25ef750e |
2226 | SetUniformState (theCView, |
312a4043 |
2227 | theSizeX, |
2228 | theSizeY, |
25ef750e |
2229 | theOrigins, |
2230 | theDirects, |
2231 | theUnviewMat, |
2232 | 1, // ID of FSAA program |
2233 | myPostFSAAProgram); |
fc73a202 |
2234 | |
7d3e64ef |
2235 | myGlContext->core20fwd->glEnableVertexAttribArray (Graphic3d_TOA_POS); |
2236 | myGlContext->core20fwd->glVertexAttribPointer (Graphic3d_TOA_POS, 3, GL_FLOAT, GL_FALSE, 0, NULL); |
fc73a202 |
2237 | |
50d0e1ce |
2238 | // Perform multi-pass adaptive FSAA using ping-pong technique. |
2239 | // We use 'FLIPTRI' sampling pattern changing for every pixel |
2240 | // (3 additional samples per pixel, the 1st sample is already |
2241 | // available from initial ray-traced image). |
2242 | for (Standard_Integer anIt = 1; anIt < 4; ++anIt) |
fc73a202 |
2243 | { |
2244 | GLfloat aOffsetX = 1.f / theSizeX; |
2245 | GLfloat aOffsetY = 1.f / theSizeY; |
2246 | |
50d0e1ce |
2247 | if (anIt == 1) |
fc73a202 |
2248 | { |
50d0e1ce |
2249 | aOffsetX *= -0.55f; |
2250 | aOffsetY *= 0.55f; |
fc73a202 |
2251 | } |
50d0e1ce |
2252 | else if (anIt == 2) |
fc73a202 |
2253 | { |
50d0e1ce |
2254 | aOffsetX *= 0.00f; |
2255 | aOffsetY *= -0.55f; |
fc73a202 |
2256 | } |
50d0e1ce |
2257 | else if (anIt == 3) |
2258 | { |
2259 | aOffsetX *= 0.55f; |
2260 | aOffsetY *= 0.00f; |
2261 | } |
2262 | |
fc73a202 |
2263 | myPostFSAAProgram->SetUniform (myGlContext, |
50d0e1ce |
2264 | myUniformLocations[1][OpenGl_RT_uSamples], anIt + 1); |
fc73a202 |
2265 | myPostFSAAProgram->SetUniform (myGlContext, |
2266 | myUniformLocations[1][OpenGl_RT_uOffsetX], aOffsetX); |
2267 | myPostFSAAProgram->SetUniform (myGlContext, |
2268 | myUniformLocations[1][OpenGl_RT_uOffsetY], aOffsetY); |
2269 | |
50d0e1ce |
2270 | Handle(OpenGl_FrameBuffer)& aFramebuffer = anIt % 2 ? myRaytraceFBO2 : myRaytraceFBO1; |
fc73a202 |
2271 | |
2272 | if (anIt == 3) // disable FBO on last iteration |
2273 | { |
2274 | glEnable (GL_BLEND); |
2275 | |
2276 | if (theFrameBuffer != NULL) |
2277 | theFrameBuffer->BindBuffer (myGlContext); |
2278 | } |
2279 | else |
2280 | { |
2281 | aFramebuffer->BindBuffer (myGlContext); |
2282 | } |
50d0e1ce |
2283 | |
fc73a202 |
2284 | myGlContext->core15fwd->glDrawArrays (GL_TRIANGLES, 0, 6); |
e276548b |
2285 | |
fc73a202 |
2286 | if (anIt != 3) // set input for the next pass |
2287 | { |
945c3529 |
2288 | aFramebuffer->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); |
fc73a202 |
2289 | aFramebuffer->UnbindBuffer (myGlContext); |
e276548b |
2290 | } |
2291 | } |
fc73a202 |
2292 | |
7d3e64ef |
2293 | myGlContext->core20fwd->glDisableVertexAttribArray (Graphic3d_TOA_POS); |
fc73a202 |
2294 | |
7d3e64ef |
2295 | myGlContext->BindProgram (NULL); |
a89742cf |
2296 | myRaytraceFBO1->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); |
2297 | myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); |
2298 | myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); |
e2da917a |
2299 | mySceneMinPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMinPointTexture); |
2300 | mySceneMaxPointTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneMaxPointTexture); |
2301 | mySceneNodeInfoTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneNodeInfoTexture); |
a89742cf |
2302 | myGeometryVertexTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryVertexTexture); |
2303 | myGeometryNormalTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryNormalTexture); |
25ef750e |
2304 | myGeometryTexCrdTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTexCrdTexture); |
a89742cf |
2305 | myGeometryTriangTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_GeometryTriangTexture); |
25ef750e |
2306 | mySceneTransformTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_SceneTransformTexture); |
a89742cf |
2307 | myRaytraceMaterialTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceMaterialTexture); |
2308 | myRaytraceLightSrcTexture->UnbindTexture (myGlContext, GL_TEXTURE0 + OpenGl_RT_RaytraceLightSrcTexture); |
a89742cf |
2309 | |
2310 | myGlContext->core15fwd->glActiveTexture (GL_TEXTURE0); |
fc73a202 |
2311 | |
2312 | return Standard_True; |
e276548b |
2313 | } |
2314 | |
2315 | // ======================================================================= |
2316 | // function : Raytrace |
fc73a202 |
2317 | // purpose : Redraws the window using OpenGL/GLSL ray-tracing |
e276548b |
2318 | // ======================================================================= |
2319 | Standard_Boolean OpenGl_Workspace::Raytrace (const Graphic3d_CView& theCView, |
68333c8f |
2320 | const Standard_Integer theSizeX, |
2321 | const Standard_Integer theSizeY, |
a89742cf |
2322 | const Aspect_CLayer2d& theCOverLayer, |
2323 | const Aspect_CLayer2d& theCUnderLayer, |
fc73a202 |
2324 | OpenGl_FrameBuffer* theFrameBuffer) |
e276548b |
2325 | { |
fc73a202 |
2326 | if (!ResizeRaytraceBuffers (theSizeX, theSizeY)) |
e276548b |
2327 | return Standard_False; |
2328 | |
fc73a202 |
2329 | if (!UpdateRaytraceEnvironmentMap()) |
e276548b |
2330 | return Standard_False; |
2331 | |
2332 | // Get model-view and projection matrices |
25ef750e |
2333 | OpenGl_Mat4 aOrientationMatrix; |
2334 | OpenGl_Mat4 aViewMappingMatrix; |
e276548b |
2335 | |
25ef750e |
2336 | myView->GetMatrices (aOrientationMatrix, |
2337 | aViewMappingMatrix); |
e276548b |
2338 | |
25ef750e |
2339 | OpenGl_Mat4 aInvOrientationMatrix; |
fc73a202 |
2340 | aOrientationMatrix.Inverted (aInvOrientationMatrix); |
e276548b |
2341 | |
fc73a202 |
2342 | if (!UpdateRaytraceLightSources (aInvOrientationMatrix)) |
e276548b |
2343 | return Standard_False; |
2344 | |
fc73a202 |
2345 | OpenGl_Vec3 aOrigins[4]; |
2346 | OpenGl_Vec3 aDirects[4]; |
25ef750e |
2347 | OpenGl_Mat4 anUnviewMat; |
e276548b |
2348 | |
fc73a202 |
2349 | UpdateCamera (aOrientationMatrix, |
2350 | aViewMappingMatrix, |
2351 | aOrigins, |
a89742cf |
2352 | aDirects, |
25ef750e |
2353 | anUnviewMat); |
e276548b |
2354 | |
84c71f29 |
2355 | Standard_Boolean wasBlendingEnabled = glIsEnabled (GL_BLEND); |
2356 | Standard_Boolean wasDepthTestEnabled = glIsEnabled (GL_DEPTH_TEST); |
e276548b |
2357 | |
2358 | glDisable (GL_DEPTH_TEST); |
2359 | |
a89742cf |
2360 | if (theFrameBuffer != NULL) |
2361 | { |
2362 | theFrameBuffer->BindBuffer (myGlContext); |
2363 | } |
2364 | |
e276548b |
2365 | if (NamedStatus & OPENGL_NS_WHITEBACK) |
2366 | { |
2367 | glClearColor (1.0f, 1.0f, 1.0f, 1.0f); |
2368 | } |
2369 | else |
2370 | { |
2371 | glClearColor (myBgColor.rgb[0], |
2372 | myBgColor.rgb[1], |
2373 | myBgColor.rgb[2], |
2374 | 1.0f); |
2375 | } |
2376 | |
2377 | glClear (GL_COLOR_BUFFER_BIT); |
2378 | |
0b0320e7 |
2379 | myView->DrawBackground (this); |
e276548b |
2380 | |
c827ea3a |
2381 | myView->RedrawLayer2d (myPrintContext, this, theCView, theCUnderLayer); |
a89742cf |
2382 | |
c827ea3a |
2383 | myGlContext->WorldViewState.Push(); |
2384 | myGlContext->ProjectionState.Push(); |
e276548b |
2385 | |
c827ea3a |
2386 | myGlContext->WorldViewState.SetIdentity(); |
2387 | myGlContext->ProjectionState.SetIdentity(); |
2388 | |
2389 | myGlContext->ApplyProjectionMatrix(); |
2390 | myGlContext->ApplyWorldViewMatrix(); |
e276548b |
2391 | |
fc73a202 |
2392 | glEnable (GL_BLEND); |
2393 | glBlendFunc (GL_ONE, GL_SRC_ALPHA); |
e276548b |
2394 | |
c827ea3a |
2395 | // Generate ray-traced image |
e276548b |
2396 | if (myIsRaytraceDataValid) |
2397 | { |
fc73a202 |
2398 | myRaytraceScreenQuad.Bind (myGlContext); |
2399 | |
25ef750e |
2400 | if (!myRaytraceGeometry.AcquireTextures (myGlContext)) |
2401 | { |
2402 | const TCollection_ExtendedString aMessage = "Error: Failed to acquire OpenGL image textures"; |
2403 | |
2404 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
2405 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_MEDIUM_ARB, aMessage); |
2406 | } |
2407 | |
fc73a202 |
2408 | RunRaytraceShaders (theCView, |
2409 | theSizeX, |
2410 | theSizeY, |
2411 | aOrigins, |
2412 | aDirects, |
25ef750e |
2413 | anUnviewMat, |
fc73a202 |
2414 | theFrameBuffer); |
2415 | |
25ef750e |
2416 | if (!myRaytraceGeometry.ReleaseTextures (myGlContext)) |
2417 | { |
2418 | const TCollection_ExtendedString aMessage = "Error: Failed to release OpenGL image textures"; |
2419 | |
2420 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
2421 | GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_MEDIUM_ARB, aMessage); |
2422 | } |
2423 | |
fc73a202 |
2424 | myRaytraceScreenQuad.Unbind (myGlContext); |
e276548b |
2425 | } |
2426 | |
84c71f29 |
2427 | if (!wasBlendingEnabled) |
2428 | glDisable (GL_BLEND); |
fc73a202 |
2429 | |
84c71f29 |
2430 | if (wasDepthTestEnabled) |
2431 | glEnable (GL_DEPTH_TEST); |
e276548b |
2432 | |
c827ea3a |
2433 | myGlContext->WorldViewState.Pop(); |
2434 | myGlContext->ProjectionState.Pop(); |
2435 | |
2436 | myGlContext->ApplyProjectionMatrix(); |
a89742cf |
2437 | |
2438 | // Redraw trihedron |
2439 | myView->RedrawTrihedron (this); |
2440 | |
2441 | // Redraw overlay |
2442 | const int aMode = 0; |
2443 | DisplayCallback (theCView, (aMode | OCC_PRE_OVERLAY)); |
c827ea3a |
2444 | myView->RedrawLayer2d (myPrintContext, this, theCView, theCOverLayer); |
a89742cf |
2445 | DisplayCallback (theCView, aMode); |
e276548b |
2446 | return Standard_True; |
2447 | } |
a89742cf |
2448 | |
2449 | IMPLEMENT_STANDARD_HANDLE(OpenGl_RaytraceFilter, OpenGl_RenderFilter) |
2450 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_RaytraceFilter, OpenGl_RenderFilter) |
2451 | |
2452 | // ======================================================================= |
2453 | // function : CanRender |
2454 | // purpose : |
2455 | // ======================================================================= |
2456 | Standard_Boolean OpenGl_RaytraceFilter::CanRender (const OpenGl_Element* theElement) |
2457 | { |
2458 | Standard_Boolean aPrevFilterResult = Standard_True; |
2459 | if (!myPrevRenderFilter.IsNull()) |
2460 | { |
2461 | aPrevFilterResult = myPrevRenderFilter->CanRender(theElement); |
2462 | } |
2463 | return aPrevFilterResult && |
2464 | !OpenGl_Raytrace::IsRaytracedElement (theElement); |
2465 | } |