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b311480e | 1 | // Created on: 2011-08-01 |
2 | // Created by: Sergey ZERCHANINOV | |
973c2be1 | 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 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. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
b311480e | 15 | |
4269bd1b | 16 | #include <OpenGl_CappingAlgo.hxx> |
17 | #include <OpenGl_Context.hxx> | |
30f0ad28 | 18 | #include <OpenGl_GlCore11.hxx> |
25c35042 | 19 | #include <OpenGl_ClippingIterator.hxx> |
63bcc448 | 20 | #include <OpenGl_GraphicDriver.hxx> |
30f0ad28 | 21 | #include <OpenGl_ShaderManager.hxx> |
22 | #include <OpenGl_ShaderProgram.hxx> | |
2bd4bfac | 23 | #include <OpenGl_StructureShadow.hxx> |
30f0ad28 | 24 | #include <OpenGl_Vec.hxx> |
25 | #include <OpenGl_View.hxx> | |
26 | #include <OpenGl_Workspace.hxx> | |
2166f0fa | 27 | |
92efcf78 | 28 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Structure,Graphic3d_CStructure) |
29 | ||
98b15dbf | 30 | // ======================================================================= |
31 | // function : renderBoundingBox | |
32 | // purpose : | |
33 | // ======================================================================= | |
34 | void OpenGl_Structure::renderBoundingBox (const Handle(OpenGl_Workspace)& theWorkspace) const | |
27eed937 | 35 | { |
98b15dbf | 36 | if (!myBndBox.IsValid()) |
27eed937 | 37 | { |
98b15dbf | 38 | return; |
27eed937 | 39 | } |
40 | ||
98b15dbf | 41 | const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext(); |
42 | const Handle(OpenGl_TextureSet) aPrevTexture = aCtx->BindTextures (Handle(OpenGl_TextureSet)()); | |
43 | const Graphic3d_ZLayerSettings& aLayer = myGraphicDriver->ZLayerSettings (myZLayer); | |
44 | const Graphic3d_Vec3d aMoveVec = myTrsfPers.IsNull() | |
45 | && !aLayer.OriginTransformation().IsNull() | |
46 | ? -Graphic3d_Vec3d (aLayer.Origin().X(), aLayer.Origin().Y(), aLayer.Origin().Z()) | |
47 | : Graphic3d_Vec3d (0.0, 0.0, 0.0); | |
48 | if (aCtx->core20fwd != NULL | |
49 | && aCtx->ShaderManager()->BindBoundBoxProgram()) | |
50 | { | |
51 | const Graphic3d_Vec3d aCenter = myBndBox.Center() + aMoveVec; | |
52 | const Graphic3d_Vec3d aSize = myBndBox.Size(); | |
53 | aCtx->ActiveProgram()->SetUniform (aCtx, "occBBoxCenter", Graphic3d_Vec3 ((float )aCenter.x(), (float )aCenter.y(), (float )aCenter.z())); | |
54 | aCtx->ActiveProgram()->SetUniform (aCtx, "occBBoxSize", Graphic3d_Vec3 ((float )aSize.x(), (float )aSize.y(), (float )aSize.z())); | |
bf5f0ca2 | 55 | aCtx->SetColor4fv (theWorkspace->InteriorColor()); |
98b15dbf | 56 | |
57 | const Handle(OpenGl_VertexBuffer)& aBoundBoxVertBuffer = aCtx->ShaderManager()->BoundBoxVertBuffer(); | |
58 | aBoundBoxVertBuffer->BindAttribute (aCtx, Graphic3d_TOA_POS); | |
59 | aCtx->core20fwd->glDrawArrays (GL_LINES, 0, aBoundBoxVertBuffer->GetElemsNb()); | |
60 | aBoundBoxVertBuffer->UnbindAttribute(aCtx, Graphic3d_TOA_POS); | |
61 | } | |
62 | #if !defined(GL_ES_VERSION_2_0) | |
63 | else if (aCtx->core11 != NULL) | |
27eed937 | 64 | { |
98b15dbf | 65 | const Graphic3d_Vec3d aMind = myBndBox.CornerMin() + aMoveVec; |
66 | const Graphic3d_Vec3d aMaxd = myBndBox.CornerMax() + aMoveVec; | |
67 | const Graphic3d_Vec3 aMin ((float )aMind.x(), (float )aMind.y(), (float )aMind.z()); | |
68 | const Graphic3d_Vec3 aMax ((float )aMaxd.x(), (float )aMaxd.y(), (float )aMaxd.z()); | |
69 | const OpenGl_Vec3 aVerts[16] = | |
70 | { | |
71 | OpenGl_Vec3 (aMin.x(), aMin.y(), aMin.z()), | |
72 | OpenGl_Vec3 (aMin.x(), aMin.y(), aMax.z()), | |
73 | OpenGl_Vec3 (aMin.x(), aMax.y(), aMax.z()), | |
74 | OpenGl_Vec3 (aMin.x(), aMax.y(), aMin.z()), | |
75 | OpenGl_Vec3 (aMin.x(), aMin.y(), aMin.z()), | |
76 | OpenGl_Vec3 (aMax.x(), aMin.y(), aMin.z()), | |
77 | OpenGl_Vec3 (aMax.x(), aMin.y(), aMax.z()), | |
78 | OpenGl_Vec3 (aMax.x(), aMax.y(), aMax.z()), | |
79 | OpenGl_Vec3 (aMax.x(), aMax.y(), aMin.z()), | |
80 | OpenGl_Vec3 (aMax.x(), aMin.y(), aMin.z()), | |
81 | OpenGl_Vec3 (aMax.x(), aMax.y(), aMin.z()), | |
82 | OpenGl_Vec3 (aMin.x(), aMax.y(), aMin.z()), | |
83 | OpenGl_Vec3 (aMin.x(), aMax.y(), aMax.z()), | |
84 | OpenGl_Vec3 (aMax.x(), aMax.y(), aMax.z()), | |
85 | OpenGl_Vec3 (aMax.x(), aMin.y(), aMax.z()), | |
86 | OpenGl_Vec3 (aMin.x(), aMin.y(), aMax.z()) | |
87 | }; | |
88 | ||
89 | aCtx->ShaderManager()->BindLineProgram (Handle(OpenGl_TextureSet)(), Aspect_TOL_SOLID, Graphic3d_TOSM_UNLIT, Graphic3d_AlphaMode_Opaque, false, Handle(OpenGl_ShaderProgram)()); | |
bf5f0ca2 | 90 | aCtx->SetColor4fv (theWorkspace->InteriorColor()); |
98b15dbf | 91 | aCtx->core11fwd->glDisable (GL_LIGHTING); |
92 | aCtx->core11->glEnableClientState (GL_VERTEX_ARRAY); | |
93 | aCtx->core11->glVertexPointer (3, GL_FLOAT, 0, aVerts[0].GetData()); | |
94 | aCtx->core11fwd->glDrawArrays (GL_LINE_STRIP, 0, 16); | |
95 | aCtx->core11->glDisableClientState (GL_VERTEX_ARRAY); | |
27eed937 | 96 | } |
98b15dbf | 97 | #endif |
98 | aCtx->BindTextures (aPrevTexture); | |
99 | } | |
2166f0fa | 100 | |
4269bd1b | 101 | // ======================================================================= |
102 | // function : OpenGl_Structure | |
103 | // purpose : | |
104 | // ======================================================================= | |
63bcc448 | 105 | OpenGl_Structure::OpenGl_Structure (const Handle(Graphic3d_StructureManager)& theManager) |
106 | : Graphic3d_CStructure (theManager), | |
d4aaad5b | 107 | myInstancedStructure (NULL), |
108 | myIsRaytracable (Standard_False), | |
109 | myModificationState (0), | |
d4aaad5b | 110 | myIsMirrored (Standard_False) |
2166f0fa | 111 | { |
7c3ef2f7 | 112 | updateLayerTransformation(); |
2166f0fa SK |
113 | } |
114 | ||
4269bd1b | 115 | // ======================================================================= |
116 | // function : ~OpenGl_Structure | |
117 | // purpose : | |
118 | // ======================================================================= | |
5e27df78 | 119 | OpenGl_Structure::~OpenGl_Structure() |
2166f0fa | 120 | { |
5e27df78 | 121 | Release (Handle(OpenGl_Context)()); |
2166f0fa SK |
122 | } |
123 | ||
7c3ef2f7 | 124 | // ======================================================================= |
125 | // function : SetZLayer | |
126 | // purpose : | |
127 | // ======================================================================= | |
128 | void OpenGl_Structure::SetZLayer (const Graphic3d_ZLayerId theLayerIndex) | |
129 | { | |
130 | Graphic3d_CStructure::SetZLayer (theLayerIndex); | |
131 | updateLayerTransformation(); | |
132 | } | |
133 | ||
63bcc448 | 134 | // ======================================================================= |
1f7f5a90 | 135 | // function : SetTransformation |
63bcc448 | 136 | // purpose : |
137 | // ======================================================================= | |
1f7f5a90 | 138 | void OpenGl_Structure::SetTransformation (const Handle(Geom_Transformation)& theTrsf) |
63bcc448 | 139 | { |
1f7f5a90 | 140 | myTrsf = theTrsf; |
141 | myIsMirrored = Standard_False; | |
142 | if (!myTrsf.IsNull()) | |
143 | { | |
144 | // Determinant of transform matrix less then 0 means that mirror transform applied. | |
145 | const Standard_Real aDet = myTrsf->Value(1, 1) * (myTrsf->Value (2, 2) * myTrsf->Value (3, 3) - myTrsf->Value (3, 2) * myTrsf->Value (2, 3)) | |
146 | - myTrsf->Value(1, 2) * (myTrsf->Value (2, 1) * myTrsf->Value (3, 3) - myTrsf->Value (3, 1) * myTrsf->Value (2, 3)) | |
147 | + myTrsf->Value(1, 3) * (myTrsf->Value (2, 1) * myTrsf->Value (3, 2) - myTrsf->Value (3, 1) * myTrsf->Value (2, 2)); | |
148 | myIsMirrored = aDet < 0.0; | |
149 | } | |
7d9e854b | 150 | |
7c3ef2f7 | 151 | updateLayerTransformation(); |
d4aaad5b | 152 | if (IsRaytracable()) |
e276548b | 153 | { |
d4aaad5b | 154 | ++myModificationState; |
e276548b | 155 | } |
2166f0fa SK |
156 | } |
157 | ||
7c3ef2f7 | 158 | // ======================================================================= |
159 | // function : SetTransformPersistence | |
160 | // purpose : | |
161 | // ======================================================================= | |
162 | void OpenGl_Structure::SetTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers) | |
163 | { | |
164 | myTrsfPers = theTrsfPers; | |
165 | updateLayerTransformation(); | |
166 | } | |
167 | ||
168 | // ======================================================================= | |
169 | // function : updateLayerTransformation | |
170 | // purpose : | |
171 | // ======================================================================= | |
172 | void OpenGl_Structure::updateLayerTransformation() | |
173 | { | |
174 | gp_Trsf aRenderTrsf; | |
175 | if (!myTrsf.IsNull()) | |
176 | { | |
177 | aRenderTrsf = myTrsf->Trsf(); | |
178 | } | |
179 | ||
180 | const Graphic3d_ZLayerSettings& aLayer = myGraphicDriver->ZLayerSettings (myZLayer); | |
181 | if (!aLayer.OriginTransformation().IsNull() | |
182 | && myTrsfPers.IsNull()) | |
183 | { | |
184 | aRenderTrsf.SetTranslationPart (aRenderTrsf.TranslationPart() - aLayer.Origin()); | |
185 | } | |
186 | aRenderTrsf.GetMat4 (myRenderTrsf); | |
187 | } | |
188 | ||
4269bd1b | 189 | // ======================================================================= |
8e5fb5ea | 190 | // function : GraphicHighlight |
4269bd1b | 191 | // purpose : |
192 | // ======================================================================= | |
98b15dbf | 193 | void OpenGl_Structure::GraphicHighlight (const Handle(Graphic3d_PresentationAttributes)& theStyle) |
2166f0fa | 194 | { |
8e5fb5ea | 195 | myHighlightStyle = theStyle; |
8e5fb5ea | 196 | highlight = 1; |
2166f0fa SK |
197 | } |
198 | ||
4269bd1b | 199 | // ======================================================================= |
8e5fb5ea | 200 | // function : GraphicUnhighlight |
4269bd1b | 201 | // purpose : |
202 | // ======================================================================= | |
8e5fb5ea | 203 | void OpenGl_Structure::GraphicUnhighlight() |
2166f0fa | 204 | { |
8e5fb5ea | 205 | highlight = 0; |
8e5fb5ea | 206 | myHighlightStyle.Nullify(); |
2166f0fa SK |
207 | } |
208 | ||
e276548b | 209 | // ======================================================================= |
a1954302 | 210 | // function : OnVisibilityChanged |
e276548b | 211 | // purpose : |
212 | // ======================================================================= | |
a1954302 | 213 | void OpenGl_Structure::OnVisibilityChanged() |
e276548b | 214 | { |
d4aaad5b | 215 | if (IsRaytracable()) |
e276548b | 216 | { |
d4aaad5b | 217 | ++myModificationState; |
e276548b | 218 | } |
e276548b | 219 | } |
220 | ||
e276548b | 221 | // ======================================================================= |
d4aaad5b | 222 | // function : IsRaytracable |
e276548b | 223 | // purpose : |
224 | // ======================================================================= | |
d4aaad5b | 225 | Standard_Boolean OpenGl_Structure::IsRaytracable() const |
e276548b | 226 | { |
3e05329c | 227 | if (!myGroups.IsEmpty() |
228 | && myIsRaytracable) | |
e276548b | 229 | { |
3e05329c | 230 | return Standard_True; |
e276548b | 231 | } |
d5af8626 | 232 | |
3e05329c | 233 | return myInstancedStructure != NULL |
234 | && myInstancedStructure->IsRaytracable(); | |
d5af8626 | 235 | } |
236 | ||
e276548b | 237 | // ======================================================================= |
d4aaad5b | 238 | // function : UpdateRaytracableState |
e276548b | 239 | // purpose : |
240 | // ======================================================================= | |
d4aaad5b | 241 | void OpenGl_Structure::UpdateStateIfRaytracable (const Standard_Boolean toCheck) const |
e276548b | 242 | { |
3e05329c | 243 | myIsRaytracable = !toCheck; |
244 | if (!myIsRaytracable) | |
245 | { | |
246 | for (OpenGl_Structure::GroupIterator anIter (myGroups); anIter.More(); anIter.Next()) | |
247 | { | |
248 | if (anIter.Value()->IsRaytracable()) | |
249 | { | |
250 | myIsRaytracable = Standard_True; | |
251 | break; | |
252 | } | |
253 | } | |
254 | } | |
e276548b | 255 | |
d4aaad5b | 256 | if (IsRaytracable()) |
e276548b | 257 | { |
d4aaad5b | 258 | ++myModificationState; |
e276548b | 259 | } |
260 | } | |
261 | ||
4269bd1b | 262 | // ======================================================================= |
263 | // function : Connect | |
264 | // purpose : | |
265 | // ======================================================================= | |
63bcc448 | 266 | void OpenGl_Structure::Connect (Graphic3d_CStructure& theStructure) |
2166f0fa | 267 | { |
d4aaad5b | 268 | OpenGl_Structure* aStruct = static_cast<OpenGl_Structure*> (&theStructure); |
269 | ||
270 | Standard_ASSERT_RAISE (myInstancedStructure == NULL || myInstancedStructure == aStruct, | |
271 | "Error! Instanced structure is already defined"); | |
272 | ||
273 | myInstancedStructure = aStruct; | |
e276548b | 274 | |
63bcc448 | 275 | if (aStruct->IsRaytracable()) |
e276548b | 276 | { |
d4aaad5b | 277 | UpdateStateIfRaytracable (Standard_False); |
e276548b | 278 | } |
2166f0fa SK |
279 | } |
280 | ||
4269bd1b | 281 | // ======================================================================= |
282 | // function : Disconnect | |
283 | // purpose : | |
284 | // ======================================================================= | |
63bcc448 | 285 | void OpenGl_Structure::Disconnect (Graphic3d_CStructure& theStructure) |
2166f0fa | 286 | { |
d4aaad5b | 287 | OpenGl_Structure* aStruct = static_cast<OpenGl_Structure*> (&theStructure); |
e276548b | 288 | |
d4aaad5b | 289 | if (myInstancedStructure == aStruct) |
290 | { | |
291 | myInstancedStructure = NULL; | |
e276548b | 292 | |
d4aaad5b | 293 | if (aStruct->IsRaytracable()) |
294 | { | |
295 | UpdateStateIfRaytracable(); | |
2166f0fa | 296 | } |
2166f0fa SK |
297 | } |
298 | } | |
299 | ||
4269bd1b | 300 | // ======================================================================= |
b64d84be | 301 | // function : NewGroup |
4269bd1b | 302 | // purpose : |
303 | // ======================================================================= | |
b64d84be | 304 | Handle(Graphic3d_Group) OpenGl_Structure::NewGroup (const Handle(Graphic3d_Structure)& theStruct) |
2166f0fa | 305 | { |
b64d84be | 306 | Handle(OpenGl_Group) aGroup = new OpenGl_Group (theStruct); |
307 | myGroups.Append (aGroup); | |
308 | return aGroup; | |
2166f0fa SK |
309 | } |
310 | ||
4269bd1b | 311 | // ======================================================================= |
312 | // function : RemoveGroup | |
313 | // purpose : | |
314 | // ======================================================================= | |
b64d84be | 315 | void OpenGl_Structure::RemoveGroup (const Handle(Graphic3d_Group)& theGroup) |
2166f0fa | 316 | { |
b64d84be | 317 | if (theGroup.IsNull()) |
318 | { | |
319 | return; | |
320 | } | |
321 | ||
322 | for (Graphic3d_SequenceOfGroup::Iterator aGroupIter (myGroups); aGroupIter.More(); aGroupIter.Next()) | |
2166f0fa SK |
323 | { |
324 | // Check for the given group | |
b64d84be | 325 | if (aGroupIter.Value() == theGroup) |
2166f0fa | 326 | { |
d4aaad5b | 327 | const Standard_Boolean wasRaytracable = |
328 | static_cast<const OpenGl_Group&> (*theGroup).IsRaytracable(); | |
329 | ||
b64d84be | 330 | theGroup->Clear (Standard_False); |
e276548b | 331 | |
d4aaad5b | 332 | if (wasRaytracable) |
e276548b | 333 | { |
d4aaad5b | 334 | UpdateStateIfRaytracable(); |
e276548b | 335 | } |
e276548b | 336 | |
b64d84be | 337 | myGroups.Remove (aGroupIter); |
2166f0fa SK |
338 | return; |
339 | } | |
2166f0fa SK |
340 | } |
341 | } | |
342 | ||
63bcc448 | 343 | // ======================================================================= |
344 | // function : Clear | |
345 | // purpose : | |
346 | // ======================================================================= | |
347 | void OpenGl_Structure::Clear() | |
348 | { | |
349 | Clear (GlDriver()->GetSharedContext()); | |
350 | } | |
351 | ||
4269bd1b | 352 | // ======================================================================= |
353 | // function : Clear | |
354 | // purpose : | |
355 | // ======================================================================= | |
5e27df78 | 356 | void OpenGl_Structure::Clear (const Handle(OpenGl_Context)& theGlCtx) |
2166f0fa | 357 | { |
e276548b | 358 | Standard_Boolean aRaytracableGroupDeleted (Standard_False); |
e276548b | 359 | |
5e27df78 | 360 | // Release groups |
b64d84be | 361 | for (OpenGl_Structure::GroupIterator aGroupIter (myGroups); aGroupIter.More(); aGroupIter.Next()) |
2166f0fa | 362 | { |
b64d84be | 363 | aRaytracableGroupDeleted |= aGroupIter.Value()->IsRaytracable(); |
5322131b | 364 | |
2166f0fa | 365 | // Delete objects |
b64d84be | 366 | aGroupIter.ChangeValue()->Release (theGlCtx); |
2166f0fa SK |
367 | } |
368 | myGroups.Clear(); | |
e276548b | 369 | |
e276548b | 370 | if (aRaytracableGroupDeleted) |
371 | { | |
d4aaad5b | 372 | myIsRaytracable = Standard_False; |
e276548b | 373 | } |
b7cd4ba7 | 374 | |
375 | Is2dText = Standard_False; | |
376 | IsForHighlight = Standard_False; | |
2166f0fa SK |
377 | } |
378 | ||
0717ddc1 | 379 | // ======================================================================= |
cc6852f3 | 380 | // function : renderGeometry |
0717ddc1 | 381 | // purpose : |
382 | // ======================================================================= | |
cc6852f3 | 383 | void OpenGl_Structure::renderGeometry (const Handle(OpenGl_Workspace)& theWorkspace, |
384 | bool& theHasClosed) const | |
0717ddc1 | 385 | { |
cc6852f3 | 386 | if (myInstancedStructure != NULL) |
0717ddc1 | 387 | { |
cc6852f3 | 388 | myInstancedStructure->renderGeometry (theWorkspace, theHasClosed); |
389 | } | |
390 | ||
391 | for (OpenGl_Structure::GroupIterator aGroupIter (myGroups); aGroupIter.More(); aGroupIter.Next()) | |
392 | { | |
393 | theHasClosed = theHasClosed || aGroupIter.Value()->IsClosed(); | |
7d9e854b | 394 | aGroupIter.Value()->Render (theWorkspace); |
0717ddc1 | 395 | } |
396 | } | |
cc6852f3 | 397 | |
4269bd1b | 398 | // ======================================================================= |
399 | // function : Render | |
400 | // purpose : | |
401 | // ======================================================================= | |
7d9e854b | 402 | void OpenGl_Structure::Render (const Handle(OpenGl_Workspace) &theWorkspace) const |
2166f0fa SK |
403 | { |
404 | // Process the structure only if visible | |
a1954302 | 405 | if (!visible) |
7d9e854b | 406 | { |
2166f0fa | 407 | return; |
7d9e854b | 408 | } |
2166f0fa | 409 | |
c827ea3a | 410 | const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext(); |
b7cd4ba7 | 411 | |
2166f0fa | 412 | // Render named status |
98b15dbf | 413 | if (highlight && !myHighlightStyle.IsNull() && myHighlightStyle->Method() != Aspect_TOHM_BOUNDBOX) |
a1954302 | 414 | { |
f838dac4 | 415 | theWorkspace->SetHighlightStyle (myHighlightStyle); |
a1954302 | 416 | } |
2166f0fa | 417 | |
2166f0fa | 418 | // Apply local transformation |
6bd94e0d | 419 | aCtx->ModelWorldState.Push(); |
1f7f5a90 | 420 | OpenGl_Mat4& aModelWorld = aCtx->ModelWorldState.ChangeCurrent(); |
7c3ef2f7 | 421 | aModelWorld = myRenderTrsf; |
6bd94e0d | 422 | |
1d92133e | 423 | const Standard_Boolean anOldGlNormalize = aCtx->IsGlNormalizeEnabled(); |
1d92133e | 424 | #if !defined(GL_ES_VERSION_2_0) |
425 | // detect scale transform | |
1f7f5a90 | 426 | if (aCtx->core11 != NULL |
427 | && !myTrsf.IsNull()) | |
1d92133e | 428 | { |
1f7f5a90 | 429 | const Standard_Real aScale = myTrsf->ScaleFactor(); |
430 | if (Abs (aScale - 1.0) > Precision::Confusion()) | |
1d92133e | 431 | { |
432 | aCtx->SetGlNormalizeEnabled (Standard_True); | |
433 | } | |
434 | } | |
435 | #endif | |
436 | ||
778cd667 | 437 | if (!myTrsfPers.IsNull()) |
825aa485 | 438 | { |
825aa485 | 439 | aCtx->WorldViewState.Push(); |
7c3ef2f7 | 440 | OpenGl_Mat4& aWorldView = aCtx->WorldViewState.ChangeCurrent(); |
441 | myTrsfPers->Apply (theWorkspace->View()->Camera(), | |
442 | aCtx->ProjectionState.Current(), aWorldView, | |
56689b27 | 443 | aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]); |
2166f0fa | 444 | |
1d92133e | 445 | #if !defined(GL_ES_VERSION_2_0) |
446 | if (!aCtx->IsGlNormalizeEnabled() | |
447 | && aCtx->core11 != NULL) | |
448 | { | |
449 | const Standard_Real aScale = Graphic3d_TransformUtils::ScaleFactor<Standard_ShortReal> (aWorldView); | |
7c3ef2f7 | 450 | if (Abs (aScale - 1.0) > Precision::Confusion()) |
1d92133e | 451 | { |
452 | aCtx->SetGlNormalizeEnabled (Standard_True); | |
453 | } | |
454 | } | |
455 | #endif | |
04be5003 | 456 | } |
457 | ||
d437b80d | 458 | // Take into account transform persistence |
459 | aCtx->ApplyModelViewMatrix(); | |
c827ea3a | 460 | |
f9ba5c4d | 461 | // remember aspects |
bf5f0ca2 | 462 | const OpenGl_Aspects* aPrevAspectFace = theWorkspace->Aspects(); |
7d9e854b | 463 | |
464 | // Apply correction for mirror transform | |
465 | if (myIsMirrored) | |
466 | { | |
c827ea3a | 467 | aCtx->core11fwd->glFrontFace (GL_CW); |
7d9e854b | 468 | } |
2166f0fa | 469 | |
b859a34d | 470 | // Collect clipping planes of structure scope |
25c35042 | 471 | aCtx->ChangeClipping().SetLocalPlanes (myClipPlanes); |
4269bd1b | 472 | |
1a7ece8f | 473 | // True if structure is fully clipped |
474 | bool isClipped = false; | |
3202bf1e | 475 | bool hasDisabled = false; |
476 | if (aCtx->Clipping().IsClippingOrCappingOn()) | |
1a7ece8f | 477 | { |
7c3ef2f7 | 478 | const Graphic3d_BndBox3d& aBBox = BoundingBox(); |
8b1441e3 | 479 | if (!myClipPlanes.IsNull() |
480 | && myClipPlanes->ToOverrideGlobal()) | |
1a7ece8f | 481 | { |
25c35042 | 482 | aCtx->ChangeClipping().DisableGlobal(); |
3202bf1e | 483 | hasDisabled = aCtx->Clipping().HasDisabled(); |
484 | } | |
8b1441e3 | 485 | else if (!myTrsfPers.IsNull()) |
486 | { | |
487 | if (myTrsfPers->IsZoomOrRotate()) | |
488 | { | |
489 | // Zoom/rotate persistence object lives in two worlds at the same time. | |
490 | // Global clipping planes can not be trivially applied without being converted | |
491 | // into local space of transformation persistence object. | |
492 | // As more simple alternative - just clip entire object by its anchor point defined in the world space. | |
493 | const gp_Pnt anAnchor = myTrsfPers->AnchorPoint(); | |
494 | for (OpenGl_ClippingIterator aPlaneIt (aCtx->Clipping()); aPlaneIt.More() && aPlaneIt.IsGlobal(); aPlaneIt.Next()) | |
495 | { | |
496 | const Handle(Graphic3d_ClipPlane)& aPlane = aPlaneIt.Value(); | |
497 | if (!aPlane->IsOn()) | |
498 | { | |
499 | continue; | |
500 | } | |
501 | ||
502 | // check for clipping | |
8b1441e3 | 503 | const Graphic3d_Vec4d aCheckPnt (anAnchor.X(), anAnchor.Y(), anAnchor.Z(), 1.0); |
25c35042 | 504 | if (aPlane->ProbePoint (aCheckPnt) == Graphic3d_ClipState_Out) |
8b1441e3 | 505 | { |
506 | isClipped = true; | |
507 | break; | |
508 | } | |
509 | } | |
510 | } | |
511 | ||
25c35042 | 512 | aCtx->ChangeClipping().DisableGlobal(); |
8b1441e3 | 513 | hasDisabled = aCtx->Clipping().HasDisabled(); |
514 | } | |
1a7ece8f | 515 | |
3202bf1e | 516 | // Set of clipping planes that do not intersect the structure, |
517 | // and thus can be disabled to improve rendering performance | |
518 | if (aBBox.IsValid() | |
778cd667 | 519 | && myTrsfPers.IsNull()) |
3202bf1e | 520 | { |
521 | for (OpenGl_ClippingIterator aPlaneIt (aCtx->Clipping()); aPlaneIt.More(); aPlaneIt.Next()) | |
1a7ece8f | 522 | { |
3202bf1e | 523 | const Handle(Graphic3d_ClipPlane)& aPlane = aPlaneIt.Value(); |
32ca7711 | 524 | if (aPlaneIt.IsDisabled()) |
3202bf1e | 525 | { |
526 | continue; | |
527 | } | |
1a7ece8f | 528 | |
25c35042 | 529 | const Graphic3d_ClipState aBoxState = aPlane->ProbeBox (aBBox); |
530 | if (aBoxState == Graphic3d_ClipState_Out) | |
3202bf1e | 531 | { |
532 | isClipped = true; | |
533 | break; | |
534 | } | |
25c35042 | 535 | else if (aBoxState == Graphic3d_ClipState_In) |
1a7ece8f | 536 | { |
25c35042 | 537 | aCtx->ChangeClipping().SetEnabled (aPlaneIt, false); |
3202bf1e | 538 | hasDisabled = true; |
1a7ece8f | 539 | } |
1a7ece8f | 540 | } |
541 | } | |
3202bf1e | 542 | |
543 | if ((!myClipPlanes.IsNull() && !myClipPlanes->IsEmpty()) | |
544 | || hasDisabled) | |
545 | { | |
546 | // Set OCCT state uniform variables | |
547 | aCtx->ShaderManager()->UpdateClippingState(); | |
548 | } | |
1a7ece8f | 549 | } |
550 | ||
2166f0fa | 551 | // Render groups |
cc6852f3 | 552 | bool hasClosedPrims = false; |
1a7ece8f | 553 | if (!isClipped) |
554 | { | |
555 | renderGeometry (theWorkspace, hasClosedPrims); | |
556 | } | |
2166f0fa | 557 | |
7d9e854b | 558 | // Reset correction for mirror transform |
559 | if (myIsMirrored) | |
c827ea3a | 560 | { |
561 | aCtx->core11fwd->glFrontFace (GL_CCW); | |
562 | } | |
7d9e854b | 563 | |
b859a34d | 564 | // Render capping for structure groups |
cc6852f3 | 565 | if (hasClosedPrims |
1a7ece8f | 566 | && aCtx->Clipping().IsCappingOn()) |
b859a34d | 567 | { |
cc6852f3 | 568 | OpenGl_CappingAlgo::RenderCapping (theWorkspace, *this); |
b859a34d | 569 | } |
4269bd1b | 570 | |
b859a34d | 571 | // Revert structure clippings |
3202bf1e | 572 | if (hasDisabled) |
1a7ece8f | 573 | { |
574 | // enable planes that were previously disabled | |
25c35042 | 575 | aCtx->ChangeClipping().RestoreDisabled(); |
1a7ece8f | 576 | } |
25c35042 | 577 | aCtx->ChangeClipping().SetLocalPlanes (Handle(Graphic3d_SequenceOfHClipPlane)()); |
3202bf1e | 578 | if ((!myClipPlanes.IsNull() && !myClipPlanes->IsEmpty()) |
579 | || hasDisabled) | |
4269bd1b | 580 | { |
30f0ad28 | 581 | // Set OCCT state uniform variables |
deb02f86 | 582 | aCtx->ShaderManager()->RevertClippingState(); |
4269bd1b | 583 | } |
584 | ||
825aa485 | 585 | // Restore local transformation |
6bd94e0d | 586 | aCtx->ModelWorldState.Pop(); |
587 | aCtx->SetGlNormalizeEnabled (anOldGlNormalize); | |
c827ea3a | 588 | |
2166f0fa | 589 | // Restore aspects |
bf5f0ca2 | 590 | theWorkspace->SetAspects (aPrevAspectFace); |
2166f0fa | 591 | |
b7cd4ba7 | 592 | // Apply highlight box |
98b15dbf | 593 | if (!isClipped |
594 | && !myHighlightStyle.IsNull() | |
595 | && myHighlightStyle->Method() == Aspect_TOHM_BOUNDBOX) | |
b7cd4ba7 | 596 | { |
98b15dbf | 597 | aCtx->ApplyModelViewMatrix(); |
f838dac4 | 598 | theWorkspace->SetHighlightStyle (myHighlightStyle); |
98b15dbf | 599 | renderBoundingBox (theWorkspace); |
600 | } | |
601 | ||
602 | if (!myTrsfPers.IsNull()) | |
603 | { | |
604 | aCtx->WorldViewState.Pop(); | |
b7cd4ba7 | 605 | } |
606 | ||
2166f0fa | 607 | // Restore named status |
f838dac4 | 608 | theWorkspace->SetHighlightStyle (Handle(Graphic3d_PresentationAttributes)()); |
2166f0fa SK |
609 | } |
610 | ||
5e27df78 | 611 | // ======================================================================= |
612 | // function : Release | |
613 | // purpose : | |
614 | // ======================================================================= | |
615 | void OpenGl_Structure::Release (const Handle(OpenGl_Context)& theGlCtx) | |
616 | { | |
617 | // Release groups | |
618 | Clear (theGlCtx); | |
8e5fb5ea | 619 | myHighlightStyle.Nullify(); |
5e27df78 | 620 | } |
621 | ||
dd8a4ce9 | 622 | // ======================================================================= |
623 | // function : ReleaseGlResources | |
624 | // purpose : | |
625 | // ======================================================================= | |
626 | void OpenGl_Structure::ReleaseGlResources (const Handle(OpenGl_Context)& theGlCtx) | |
627 | { | |
b64d84be | 628 | for (OpenGl_Structure::GroupIterator aGroupIter (myGroups); aGroupIter.More(); aGroupIter.Next()) |
dd8a4ce9 | 629 | { |
b64d84be | 630 | aGroupIter.ChangeValue()->Release (theGlCtx); |
dd8a4ce9 | 631 | } |
dd8a4ce9 | 632 | } |
633 | ||
679ecdee | 634 | //======================================================================= |
635 | //function : ShadowLink | |
636 | //purpose : | |
637 | //======================================================================= | |
638 | Handle(Graphic3d_CStructure) OpenGl_Structure::ShadowLink (const Handle(Graphic3d_StructureManager)& theManager) const | |
639 | { | |
640 | return new OpenGl_StructureShadow (theManager, this); | |
641 | } |