c357e426 |
1 | // Created on: 2011-09-20 |
2 | // Created by: Sergey ZERCHANINOV |
3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
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 |
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. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #include <stdio.h> |
17 | #include <stdlib.h> |
18 | |
19 | #include <OpenGl_GlCore11.hxx> |
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20 | |
21 | #include <Graphic3d_GraphicDriver.hxx> |
851dacdb |
22 | #include <Graphic3d_StructureManager.hxx> |
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23 | #include <Graphic3d_TextureParams.hxx> |
24 | #include <Graphic3d_Texture2Dmanual.hxx> |
25 | #include <Graphic3d_TransformUtils.hxx> |
26 | #include <Image_AlienPixMap.hxx> |
27 | |
28 | #include <NCollection_Mat4.hxx> |
29 | |
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30 | #include <OpenGl_Context.hxx> |
15669413 |
31 | #include <OpenGl_FrameStats.hxx> |
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32 | #include <OpenGl_Matrix.hxx> |
33 | #include <OpenGl_Workspace.hxx> |
34 | #include <OpenGl_View.hxx> |
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35 | #include <OpenGl_GraduatedTrihedron.hxx> |
36 | #include <OpenGl_PrimitiveArray.hxx> |
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37 | #include <OpenGl_ShaderManager.hxx> |
38 | #include <OpenGl_ShaderProgram.hxx> |
39 | #include <OpenGl_Structure.hxx> |
40 | #include <OpenGl_ArbFBO.hxx> |
41 | |
a0b49de4 |
42 | namespace |
43 | { |
44 | //! Format Frame Buffer format for logging messages. |
45 | static TCollection_AsciiString printFboFormat (const Handle(OpenGl_FrameBuffer)& theFbo) |
46 | { |
47 | return TCollection_AsciiString() + theFbo->GetInitVPSizeX() + "x" + theFbo->GetInitVPSizeY() + "@" + theFbo->NbSamples(); |
48 | } |
49 | |
50 | //! Return TRUE if Frame Buffer initialized has failed with the same parameters. |
51 | static bool checkWasFailedFbo (const Handle(OpenGl_FrameBuffer)& theFboToCheck, |
52 | Standard_Integer theSizeX, |
53 | Standard_Integer theSizeY, |
54 | Standard_Integer theNbSamples) |
55 | { |
56 | return !theFboToCheck->IsValid() |
57 | && theFboToCheck->GetInitVPSizeX() == theSizeX |
58 | && theFboToCheck->GetInitVPSizeY() == theSizeY |
59 | && theFboToCheck->NbSamples() == theNbSamples; |
60 | } |
61 | |
62 | //! Return TRUE if Frame Buffer initialized has failed with the same parameters. |
63 | static bool checkWasFailedFbo (const Handle(OpenGl_FrameBuffer)& theFboToCheck, |
64 | const Handle(OpenGl_FrameBuffer)& theFboRef) |
65 | { |
66 | return checkWasFailedFbo (theFboToCheck, theFboRef->GetVPSizeX(), theFboRef->GetVPSizeY(), theFboRef->NbSamples()); |
67 | } |
68 | } |
69 | |
c357e426 |
70 | //======================================================================= |
a521d90d |
71 | //function : drawBackground |
c357e426 |
72 | //purpose : |
73 | //======================================================================= |
a521d90d |
74 | void OpenGl_View::drawBackground (const Handle(OpenGl_Workspace)& theWorkspace) |
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75 | { |
76 | const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext(); |
77 | |
8613985b |
78 | if (!myBgTextureArray->IsDefined() // no texture |
79 | && !myBgGradientArray->IsDefined()) // no gradient |
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80 | { |
81 | return; |
82 | } |
83 | |
84 | const Standard_Boolean wasUsedZBuffer = theWorkspace->SetUseZBuffer (Standard_False); |
85 | if (wasUsedZBuffer) |
86 | { |
87 | aCtx->core11fwd->glDisable (GL_DEPTH_TEST); |
88 | } |
89 | |
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90 | // Drawing background gradient if: |
91 | // - gradient fill type is not Aspect_GFM_NONE and |
92 | // - either background texture is no specified or it is drawn in Aspect_FM_CENTERED mode |
93 | if (myBgGradientArray->IsDefined() |
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94 | && (!myTextureParams->Aspect()->ToMapTexture() |
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95 | || myBgTextureArray->TextureFillMethod() == Aspect_FM_CENTERED |
96 | || myBgTextureArray->TextureFillMethod() == Aspect_FM_NONE)) |
97 | { |
98 | #if !defined(GL_ES_VERSION_2_0) |
99 | GLint aShadingModelOld = GL_SMOOTH; |
dd1ae9df |
100 | if (aCtx->core11 != NULL |
101 | && aCtx->caps->ffpEnable) |
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102 | { |
103 | aCtx->core11fwd->glDisable (GL_LIGHTING); |
104 | aCtx->core11fwd->glGetIntegerv (GL_SHADE_MODEL, &aShadingModelOld); |
105 | aCtx->core11->glShadeModel (GL_SMOOTH); |
106 | } |
107 | #endif |
108 | |
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109 | myBgGradientArray->Render (theWorkspace); |
110 | |
111 | #if !defined(GL_ES_VERSION_2_0) |
dd1ae9df |
112 | if (aCtx->core11 != NULL |
113 | && aCtx->caps->ffpEnable) |
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114 | { |
115 | aCtx->core11->glShadeModel (aShadingModelOld); |
116 | } |
117 | #endif |
118 | } |
119 | |
120 | // Drawing background image if it is defined |
121 | // (texture is defined and fill type is not Aspect_FM_NONE) |
122 | if (myBgTextureArray->IsDefined() |
b6472664 |
123 | && myTextureParams->Aspect()->ToMapTexture()) |
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124 | { |
125 | aCtx->core11fwd->glDisable (GL_BLEND); |
126 | |
bf5f0ca2 |
127 | const OpenGl_Aspects* anOldAspectFace = theWorkspace->SetAspects (myTextureParams); |
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128 | myBgTextureArray->Render (theWorkspace); |
bf5f0ca2 |
129 | theWorkspace->SetAspects (anOldAspectFace); |
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130 | } |
131 | |
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132 | if (wasUsedZBuffer) |
133 | { |
134 | theWorkspace->SetUseZBuffer (Standard_True); |
135 | aCtx->core11fwd->glEnable (GL_DEPTH_TEST); |
136 | } |
137 | } |
138 | |
139 | //======================================================================= |
140 | //function : Redraw |
141 | //purpose : |
142 | //======================================================================= |
143 | void OpenGl_View::Redraw() |
144 | { |
7ccf8676 |
145 | const Standard_Boolean wasDisabledMSAA = myToDisableMSAA; |
146 | const Standard_Boolean hadFboBlit = myHasFboBlit; |
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147 | if (myRenderParams.Method == Graphic3d_RM_RAYTRACING |
148 | && !myCaps->vboDisable |
149 | && !myCaps->keepArrayData) |
150 | { |
851dacdb |
151 | // caps are shared across all views, thus we need to invalidate all of them |
152 | // if (myWasRedrawnGL) { myStructureManager->SetDeviceLost(); } |
153 | myDriver->setDeviceLost(); |
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154 | myCaps->keepArrayData = Standard_True; |
155 | } |
156 | |
157 | if (!myWorkspace->Activate()) |
158 | { |
159 | return; |
160 | } |
161 | |
162 | myWindow->SetSwapInterval(); |
163 | |
164 | ++myFrameCounter; |
7c3ef2f7 |
165 | const Graphic3d_StereoMode aStereoMode = myRenderParams.StereoMode; |
166 | Graphic3d_Camera::Projection aProjectType = myCamera->ProjectionType(); |
167 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
5e30547b |
168 | aCtx->FrameStats()->FrameStart (myWorkspace->View(), false); |
2a332745 |
169 | aCtx->SetLineFeather (myRenderParams.LineFeather); |
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170 | |
171 | // release pending GL resources |
172 | aCtx->ReleaseDelayed(); |
173 | |
174 | // fetch OpenGl context state |
175 | aCtx->FetchState(); |
176 | |
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177 | OpenGl_FrameBuffer* aFrameBuffer = myFBO.get(); |
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178 | bool toSwap = aCtx->IsRender() |
179 | && !aCtx->caps->buffersNoSwap |
180 | && aFrameBuffer == NULL; |
181 | |
d918208a |
182 | const Standard_Integer aSizeX = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeX() : myWindow->Width(); |
183 | const Standard_Integer aSizeY = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeY() : myWindow->Height(); |
184 | const Standard_Integer aRendSizeX = Standard_Integer(myRenderParams.RenderResolutionScale * aSizeX + 0.5f); |
185 | const Standard_Integer aRendSizeY = Standard_Integer(myRenderParams.RenderResolutionScale * aSizeY + 0.5f); |
186 | if (aSizeX < 1 |
187 | || aSizeY < 1 |
188 | || aRendSizeX < 1 |
189 | || aRendSizeY < 1) |
190 | { |
191 | myBackBufferRestored = Standard_False; |
192 | myIsImmediateDrawn = Standard_False; |
193 | return; |
194 | } |
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195 | |
3c4b62a4 |
196 | // determine multisampling parameters |
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197 | Standard_Integer aNbSamples = !myToDisableMSAA && aSizeX == aRendSizeX |
7ccf8676 |
198 | ? Max (Min (myRenderParams.NbMsaaSamples, aCtx->MaxMsaaSamples()), 0) |
199 | : 0; |
3c4b62a4 |
200 | if (aNbSamples != 0) |
201 | { |
202 | aNbSamples = OpenGl_Context::GetPowerOfTwo (aNbSamples, aCtx->MaxMsaaSamples()); |
203 | } |
204 | |
a1073ae2 |
205 | bool toUseOit = myRenderParams.TransparencyMethod == Graphic3d_RTM_BLEND_OIT |
206 | && checkOitCompatibility (aCtx, aNbSamples > 0); |
207 | |
208 | const bool toInitImmediateFbo = myTransientDrawToFront |
209 | && (!aCtx->caps->useSystemBuffer || (toUseOit && HasImmediateStructures())); |
210 | |
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211 | if ( aFrameBuffer == NULL |
212 | && !aCtx->DefaultFrameBuffer().IsNull() |
213 | && aCtx->DefaultFrameBuffer()->IsValid()) |
214 | { |
215 | aFrameBuffer = aCtx->DefaultFrameBuffer().operator->(); |
216 | } |
217 | |
218 | if (myHasFboBlit |
3c4b62a4 |
219 | && (myTransientDrawToFront |
220 | || aProjectType == Graphic3d_Camera::Projection_Stereo |
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221 | || aNbSamples != 0 |
a1073ae2 |
222 | || toUseOit |
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223 | || aSizeX != aRendSizeX)) |
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224 | { |
56689b27 |
225 | if (myMainSceneFbos[0]->GetVPSizeX() != aRendSizeX |
226 | || myMainSceneFbos[0]->GetVPSizeY() != aRendSizeY |
3c4b62a4 |
227 | || myMainSceneFbos[0]->NbSamples() != aNbSamples) |
c357e426 |
228 | { |
521b0d7f |
229 | if (!myTransientDrawToFront) |
230 | { |
231 | myImmediateSceneFbos[0]->Release (aCtx.operator->()); |
232 | myImmediateSceneFbos[1]->Release (aCtx.operator->()); |
233 | myImmediateSceneFbos[0]->ChangeViewport (0, 0); |
234 | myImmediateSceneFbos[1]->ChangeViewport (0, 0); |
235 | } |
236 | |
c357e426 |
237 | // prepare FBOs containing main scene |
238 | // for further blitting and rendering immediate presentations on top |
239 | if (aCtx->core20fwd != NULL) |
240 | { |
a0b49de4 |
241 | const bool wasFailedMain0 = checkWasFailedFbo (myMainSceneFbos[0], aRendSizeX, aRendSizeY, aNbSamples); |
242 | if (!myMainSceneFbos[0]->Init (aCtx, aRendSizeX, aRendSizeY, myFboColorFormat, myFboDepthFormat, aNbSamples) |
243 | && !wasFailedMain0) |
244 | { |
245 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() + "Error! Main FBO " |
246 | + printFboFormat (myMainSceneFbos[0]) + " initialization has failed"; |
247 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, aMsg); |
248 | } |
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249 | } |
a1073ae2 |
250 | } |
251 | if (myMainSceneFbos[0]->IsValid() && (toInitImmediateFbo || myImmediateSceneFbos[0]->IsValid())) |
252 | { |
a0b49de4 |
253 | const bool wasFailedImm0 = checkWasFailedFbo (myImmediateSceneFbos[0], myMainSceneFbos[0]); |
254 | if (!myImmediateSceneFbos[0]->InitLazy (aCtx, *myMainSceneFbos[0]) |
255 | && !wasFailedImm0) |
256 | { |
257 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() + "Error! Immediate FBO " |
258 | + printFboFormat (myImmediateSceneFbos[0]) + " initialization has failed"; |
259 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, aMsg); |
260 | } |
c357e426 |
261 | } |
262 | } |
263 | else |
264 | { |
265 | myMainSceneFbos [0]->Release (aCtx.operator->()); |
266 | myMainSceneFbos [1]->Release (aCtx.operator->()); |
267 | myImmediateSceneFbos[0]->Release (aCtx.operator->()); |
268 | myImmediateSceneFbos[1]->Release (aCtx.operator->()); |
269 | myMainSceneFbos [0]->ChangeViewport (0, 0); |
270 | myMainSceneFbos [1]->ChangeViewport (0, 0); |
271 | myImmediateSceneFbos[0]->ChangeViewport (0, 0); |
272 | myImmediateSceneFbos[1]->ChangeViewport (0, 0); |
273 | } |
274 | |
275 | if (aProjectType == Graphic3d_Camera::Projection_Stereo |
276 | && myMainSceneFbos[0]->IsValid()) |
277 | { |
a0b49de4 |
278 | const bool wasFailedMain1 = checkWasFailedFbo (myMainSceneFbos[1], myMainSceneFbos[0]); |
279 | if (!myMainSceneFbos[1]->InitLazy (aCtx, *myMainSceneFbos[0]) |
280 | && !wasFailedMain1) |
281 | { |
282 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() + "Error! Main FBO (second) " |
283 | + printFboFormat (myMainSceneFbos[1]) + " initialization has failed"; |
284 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, aMsg); |
285 | } |
c357e426 |
286 | if (!myMainSceneFbos[1]->IsValid()) |
287 | { |
288 | // no enough memory? |
289 | aProjectType = Graphic3d_Camera::Projection_Perspective; |
290 | } |
291 | else if (!myTransientDrawToFront) |
292 | { |
293 | // |
294 | } |
295 | else if (!aCtx->HasStereoBuffers() || aStereoMode != Graphic3d_StereoMode_QuadBuffer) |
296 | { |
a0b49de4 |
297 | const bool wasFailedImm0 = checkWasFailedFbo (myImmediateSceneFbos[0], myMainSceneFbos[0]); |
298 | const bool wasFailedImm1 = checkWasFailedFbo (myImmediateSceneFbos[1], myMainSceneFbos[0]); |
299 | if (!myImmediateSceneFbos[0]->InitLazy (aCtx, *myMainSceneFbos[0]) |
300 | && !wasFailedImm0) |
301 | { |
302 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() + "Error! Immediate FBO (first) " |
303 | + printFboFormat (myImmediateSceneFbos[0]) + " initialization has failed"; |
304 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, aMsg); |
305 | } |
306 | if (!myImmediateSceneFbos[1]->InitLazy (aCtx, *myMainSceneFbos[0]) |
307 | && !wasFailedImm1) |
308 | { |
309 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() + "Error! Immediate FBO (first) " |
310 | + printFboFormat (myImmediateSceneFbos[1]) + " initialization has failed"; |
311 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, aMsg); |
312 | } |
c357e426 |
313 | if (!myImmediateSceneFbos[0]->IsValid() |
314 | || !myImmediateSceneFbos[1]->IsValid()) |
315 | { |
316 | aProjectType = Graphic3d_Camera::Projection_Perspective; |
317 | } |
318 | } |
319 | } |
320 | |
a1073ae2 |
321 | // create color and coverage accumulation buffers required for OIT algorithm |
322 | if (toUseOit) |
323 | { |
324 | Standard_Integer anFboIt = 0; |
325 | for (; anFboIt < 2; ++anFboIt) |
326 | { |
327 | Handle(OpenGl_FrameBuffer)& aMainSceneFbo = myMainSceneFbos [anFboIt]; |
328 | Handle(OpenGl_FrameBuffer)& aMainSceneFboOit = myMainSceneFbosOit [anFboIt]; |
329 | Handle(OpenGl_FrameBuffer)& anImmediateSceneFbo = myImmediateSceneFbos [anFboIt]; |
330 | Handle(OpenGl_FrameBuffer)& anImmediateSceneFboOit = myImmediateSceneFbosOit[anFboIt]; |
331 | if (aMainSceneFbo->IsValid() |
332 | && (aMainSceneFboOit->GetVPSizeX() != aRendSizeX |
333 | || aMainSceneFboOit->GetVPSizeY() != aRendSizeY |
334 | || aMainSceneFboOit->NbSamples() != aNbSamples)) |
335 | { |
336 | Standard_Integer aColorConfig = 0; |
337 | for (;;) // seemly responding to driver limitation (GL_FRAMEBUFFER_UNSUPPORTED) |
338 | { |
339 | if (myFboOitColorConfig.IsEmpty()) |
340 | { |
341 | if (!chooseOitColorConfiguration (aCtx, aColorConfig++, myFboOitColorConfig)) |
342 | { |
343 | break; |
344 | } |
345 | } |
346 | if (aMainSceneFboOit->Init (aCtx, aRendSizeX, aRendSizeY, myFboOitColorConfig, aMainSceneFbo->DepthStencilTexture(), aNbSamples)) |
347 | { |
348 | break; |
349 | } |
350 | myFboOitColorConfig.Clear(); |
351 | } |
352 | if (!aMainSceneFboOit->IsValid()) |
353 | { |
354 | break; |
355 | } |
356 | } |
357 | else if (!aMainSceneFbo->IsValid()) |
358 | { |
359 | aMainSceneFboOit->Release (aCtx.operator->()); |
360 | aMainSceneFboOit->ChangeViewport (0, 0); |
361 | } |
362 | |
363 | if (anImmediateSceneFbo->IsValid() |
364 | && (anImmediateSceneFboOit->GetVPSizeX() != aRendSizeX |
365 | || anImmediateSceneFboOit->GetVPSizeY() != aRendSizeY |
366 | || anImmediateSceneFboOit->NbSamples() != aNbSamples)) |
367 | { |
368 | if (!anImmediateSceneFboOit->Init (aCtx, aRendSizeX, aRendSizeY, myFboOitColorConfig, |
369 | anImmediateSceneFbo->DepthStencilTexture(), aNbSamples)) |
370 | { |
371 | break; |
372 | } |
373 | } |
374 | else if (!anImmediateSceneFbo->IsValid()) |
375 | { |
376 | anImmediateSceneFboOit->Release (aCtx.operator->()); |
377 | anImmediateSceneFboOit->ChangeViewport (0, 0); |
378 | } |
379 | } |
380 | if (anFboIt == 0) // only the first OIT framebuffer is mandatory |
381 | { |
382 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, |
383 | "Initialization of float texture framebuffer for use with\n" |
384 | " blended order-independent transparency rendering algorithm has failed.\n" |
385 | " Blended order-independent transparency will not be available.\n"); |
386 | if (aNbSamples > 0) |
387 | { |
388 | myToDisableOITMSAA = Standard_True; |
389 | } |
390 | else |
391 | { |
392 | myToDisableOIT = Standard_True; |
393 | } |
394 | toUseOit = false; |
395 | } |
396 | } |
397 | if (!toUseOit && myMainSceneFbosOit[0]->IsValid()) |
398 | { |
399 | myMainSceneFbosOit [0]->Release (aCtx.operator->()); |
400 | myMainSceneFbosOit [1]->Release (aCtx.operator->()); |
401 | myImmediateSceneFbosOit[0]->Release (aCtx.operator->()); |
402 | myImmediateSceneFbosOit[1]->Release (aCtx.operator->()); |
403 | myMainSceneFbosOit [0]->ChangeViewport (0, 0); |
404 | myMainSceneFbosOit [1]->ChangeViewport (0, 0); |
405 | myImmediateSceneFbosOit[0]->ChangeViewport (0, 0); |
406 | myImmediateSceneFbosOit[1]->ChangeViewport (0, 0); |
407 | } |
408 | |
c357e426 |
409 | if (aProjectType == Graphic3d_Camera::Projection_Stereo) |
410 | { |
411 | OpenGl_FrameBuffer* aMainFbos[2] = |
412 | { |
413 | myMainSceneFbos[0]->IsValid() ? myMainSceneFbos[0].operator->() : NULL, |
414 | myMainSceneFbos[1]->IsValid() ? myMainSceneFbos[1].operator->() : NULL |
415 | }; |
a1073ae2 |
416 | OpenGl_FrameBuffer* aMainFbosOit[2] = |
417 | { |
418 | myMainSceneFbosOit[0]->IsValid() ? myMainSceneFbosOit[0].operator->() : NULL, |
419 | myMainSceneFbosOit[1]->IsValid() ? myMainSceneFbosOit[1].operator->() : |
420 | myMainSceneFbosOit[0]->IsValid() ? myMainSceneFbosOit[0].operator->() : NULL |
421 | }; |
422 | |
c357e426 |
423 | OpenGl_FrameBuffer* anImmFbos[2] = |
424 | { |
425 | myImmediateSceneFbos[0]->IsValid() ? myImmediateSceneFbos[0].operator->() : NULL, |
426 | myImmediateSceneFbos[1]->IsValid() ? myImmediateSceneFbos[1].operator->() : NULL |
427 | }; |
a1073ae2 |
428 | OpenGl_FrameBuffer* anImmFbosOit[2] = |
429 | { |
430 | myImmediateSceneFbosOit[0]->IsValid() ? myImmediateSceneFbosOit[0].operator->() : NULL, |
431 | myImmediateSceneFbosOit[1]->IsValid() ? myImmediateSceneFbosOit[1].operator->() : |
432 | myImmediateSceneFbosOit[0]->IsValid() ? myImmediateSceneFbosOit[0].operator->() : NULL |
433 | }; |
c357e426 |
434 | |
435 | if (!myTransientDrawToFront) |
436 | { |
a1073ae2 |
437 | anImmFbos [0] = aMainFbos [0]; |
438 | anImmFbos [1] = aMainFbos [1]; |
439 | anImmFbosOit[0] = aMainFbosOit[0]; |
440 | anImmFbosOit[1] = aMainFbosOit[1]; |
c357e426 |
441 | } |
442 | else if (aStereoMode == Graphic3d_StereoMode_SoftPageFlip |
443 | || aStereoMode == Graphic3d_StereoMode_QuadBuffer) |
444 | { |
a1073ae2 |
445 | anImmFbos [0] = NULL; |
446 | anImmFbos [1] = NULL; |
447 | anImmFbosOit[0] = NULL; |
448 | anImmFbosOit[1] = NULL; |
c357e426 |
449 | } |
450 | |
451 | #if !defined(GL_ES_VERSION_2_0) |
452 | aCtx->SetReadDrawBuffer (aStereoMode == Graphic3d_StereoMode_QuadBuffer ? GL_BACK_LEFT : GL_BACK); |
453 | #endif |
56689b27 |
454 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
455 | aMainFbos[0] != NULL ? myRenderParams.RenderResolutionScale : 1.0f); |
456 | |
a1073ae2 |
457 | redraw (Graphic3d_Camera::Projection_MonoLeftEye, aMainFbos[0], aMainFbosOit[0]); |
c357e426 |
458 | myBackBufferRestored = Standard_True; |
459 | myIsImmediateDrawn = Standard_False; |
460 | #if !defined(GL_ES_VERSION_2_0) |
461 | aCtx->SetReadDrawBuffer (aStereoMode == Graphic3d_StereoMode_QuadBuffer ? GL_BACK_LEFT : GL_BACK); |
462 | #endif |
56689b27 |
463 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
464 | anImmFbos[0] != NULL ? myRenderParams.RenderResolutionScale : 1.0f); |
a1073ae2 |
465 | if (!redrawImmediate (Graphic3d_Camera::Projection_MonoLeftEye, aMainFbos[0], anImmFbos[0], anImmFbosOit[0])) |
c357e426 |
466 | { |
467 | toSwap = false; |
468 | } |
469 | else if (aStereoMode == Graphic3d_StereoMode_SoftPageFlip && toSwap) |
470 | { |
471 | aCtx->SwapBuffers(); |
472 | } |
473 | |
474 | #if !defined(GL_ES_VERSION_2_0) |
475 | aCtx->SetReadDrawBuffer (aStereoMode == Graphic3d_StereoMode_QuadBuffer ? GL_BACK_RIGHT : GL_BACK); |
476 | #endif |
56689b27 |
477 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
478 | aMainFbos[1] != NULL ? myRenderParams.RenderResolutionScale : 1.0f); |
479 | |
a1073ae2 |
480 | redraw (Graphic3d_Camera::Projection_MonoRightEye, aMainFbos[1], aMainFbosOit[1]); |
c357e426 |
481 | myBackBufferRestored = Standard_True; |
482 | myIsImmediateDrawn = Standard_False; |
56689b27 |
483 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
484 | anImmFbos[1] != NULL ? myRenderParams.RenderResolutionScale : 1.0f); |
a1073ae2 |
485 | if (!redrawImmediate (Graphic3d_Camera::Projection_MonoRightEye, aMainFbos[1], anImmFbos[1], anImmFbosOit[1])) |
c357e426 |
486 | { |
487 | toSwap = false; |
488 | } |
489 | |
490 | if (anImmFbos[0] != NULL) |
491 | { |
56689b27 |
492 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), 1.0f); |
3c4b62a4 |
493 | drawStereoPair (aFrameBuffer); |
c357e426 |
494 | } |
495 | } |
496 | else |
497 | { |
a1073ae2 |
498 | OpenGl_FrameBuffer* aMainFbo = myMainSceneFbos[0]->IsValid() ? myMainSceneFbos[0].operator->() : aFrameBuffer; |
499 | OpenGl_FrameBuffer* aMainFboOit = myMainSceneFbosOit[0]->IsValid() ? myMainSceneFbosOit[0].operator->() : NULL; |
500 | OpenGl_FrameBuffer* anImmFbo = aFrameBuffer; |
501 | OpenGl_FrameBuffer* anImmFboOit = NULL; |
502 | if (!myTransientDrawToFront) |
c357e426 |
503 | { |
a1073ae2 |
504 | anImmFbo = aMainFbo; |
505 | anImmFboOit = aMainFboOit; |
c357e426 |
506 | } |
a1073ae2 |
507 | else if (myImmediateSceneFbos[0]->IsValid()) |
521b0d7f |
508 | { |
a1073ae2 |
509 | anImmFbo = myImmediateSceneFbos[0].operator->(); |
510 | anImmFboOit = myImmediateSceneFbosOit[0]->IsValid() ? myImmediateSceneFbosOit[0].operator->() : NULL; |
521b0d7f |
511 | } |
c357e426 |
512 | |
513 | #if !defined(GL_ES_VERSION_2_0) |
3bffef55 |
514 | if (aMainFbo == NULL) |
c357e426 |
515 | { |
516 | aCtx->SetReadDrawBuffer (GL_BACK); |
517 | } |
518 | #endif |
56689b27 |
519 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
520 | aMainFbo != aFrameBuffer ? myRenderParams.RenderResolutionScale : 1.0f); |
a1073ae2 |
521 | |
522 | redraw (aProjectType, aMainFbo, aMainFboOit); |
c357e426 |
523 | myBackBufferRestored = Standard_True; |
524 | myIsImmediateDrawn = Standard_False; |
56689b27 |
525 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
526 | anImmFbo != aFrameBuffer ? myRenderParams.RenderResolutionScale : 1.0f); |
a1073ae2 |
527 | if (!redrawImmediate (aProjectType, aMainFbo, anImmFbo, anImmFboOit)) |
c357e426 |
528 | { |
529 | toSwap = false; |
530 | } |
531 | |
532 | if (anImmFbo != NULL |
533 | && anImmFbo != aFrameBuffer) |
534 | { |
535 | blitBuffers (anImmFbo, aFrameBuffer, myToFlipOutput); |
536 | } |
537 | } |
538 | |
bf02aa7d |
539 | if (myRenderParams.Method == Graphic3d_RM_RAYTRACING |
540 | && myRenderParams.IsGlobalIlluminationEnabled) |
541 | { |
542 | myAccumFrames++; |
543 | } |
544 | |
c357e426 |
545 | // bind default FBO |
546 | bindDefaultFbo(); |
547 | |
7ccf8676 |
548 | if (wasDisabledMSAA != myToDisableMSAA |
549 | || hadFboBlit != myHasFboBlit) |
550 | { |
551 | // retry on error |
552 | Redraw(); |
553 | } |
554 | |
8613985b |
555 | // reset state for safety |
556 | aCtx->BindProgram (Handle(OpenGl_ShaderProgram)()); |
dd1ae9df |
557 | if (aCtx->caps->ffpEnable) |
558 | { |
559 | aCtx->ShaderManager()->PushState (Handle(OpenGl_ShaderProgram)()); |
560 | } |
8613985b |
561 | |
c357e426 |
562 | // Swap the buffers |
563 | if (toSwap) |
564 | { |
565 | aCtx->SwapBuffers(); |
566 | if (!myMainSceneFbos[0]->IsValid()) |
567 | { |
568 | myBackBufferRestored = Standard_False; |
569 | } |
570 | } |
571 | else |
572 | { |
573 | aCtx->core11fwd->glFlush(); |
574 | } |
575 | |
576 | // reset render mode state |
577 | aCtx->FetchState(); |
5e30547b |
578 | aCtx->FrameStats()->FrameEnd (myWorkspace->View(), false); |
c357e426 |
579 | |
580 | myWasRedrawnGL = Standard_True; |
581 | } |
582 | |
583 | // ======================================================================= |
584 | // function : RedrawImmediate |
585 | // purpose : |
586 | // ======================================================================= |
587 | void OpenGl_View::RedrawImmediate() |
588 | { |
589 | if (!myWorkspace->Activate()) |
590 | return; |
591 | |
592 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
593 | if (!myTransientDrawToFront |
594 | || !myBackBufferRestored |
595 | || (aCtx->caps->buffersNoSwap && !myMainSceneFbos[0]->IsValid())) |
596 | { |
597 | Redraw(); |
598 | return; |
599 | } |
600 | |
601 | const Graphic3d_StereoMode aStereoMode = myRenderParams.StereoMode; |
602 | Graphic3d_Camera::Projection aProjectType = myCamera->ProjectionType(); |
ad67e367 |
603 | OpenGl_FrameBuffer* aFrameBuffer = myFBO.get(); |
5e30547b |
604 | aCtx->FrameStats()->FrameStart (myWorkspace->View(), true); |
c357e426 |
605 | |
606 | if ( aFrameBuffer == NULL |
607 | && !aCtx->DefaultFrameBuffer().IsNull() |
608 | && aCtx->DefaultFrameBuffer()->IsValid()) |
609 | { |
610 | aFrameBuffer = aCtx->DefaultFrameBuffer().operator->(); |
611 | } |
612 | |
613 | if (aProjectType == Graphic3d_Camera::Projection_Stereo) |
614 | { |
615 | if (myMainSceneFbos[0]->IsValid() |
616 | && !myMainSceneFbos[1]->IsValid()) |
617 | { |
618 | aProjectType = Graphic3d_Camera::Projection_Perspective; |
619 | } |
620 | } |
621 | |
622 | bool toSwap = false; |
623 | if (aProjectType == Graphic3d_Camera::Projection_Stereo) |
624 | { |
625 | OpenGl_FrameBuffer* aMainFbos[2] = |
626 | { |
627 | myMainSceneFbos[0]->IsValid() ? myMainSceneFbos[0].operator->() : NULL, |
628 | myMainSceneFbos[1]->IsValid() ? myMainSceneFbos[1].operator->() : NULL |
629 | }; |
630 | OpenGl_FrameBuffer* anImmFbos[2] = |
631 | { |
632 | myImmediateSceneFbos[0]->IsValid() ? myImmediateSceneFbos[0].operator->() : NULL, |
633 | myImmediateSceneFbos[1]->IsValid() ? myImmediateSceneFbos[1].operator->() : NULL |
634 | }; |
a1073ae2 |
635 | OpenGl_FrameBuffer* anImmFbosOit[2] = |
636 | { |
637 | myImmediateSceneFbosOit[0]->IsValid() ? myImmediateSceneFbosOit[0].operator->() : NULL, |
638 | myImmediateSceneFbosOit[1]->IsValid() ? myImmediateSceneFbosOit[1].operator->() : |
639 | myImmediateSceneFbosOit[0]->IsValid() ? myImmediateSceneFbosOit[0].operator->() : NULL |
640 | }; |
c357e426 |
641 | if (aStereoMode == Graphic3d_StereoMode_SoftPageFlip |
642 | || aStereoMode == Graphic3d_StereoMode_QuadBuffer) |
643 | { |
a1073ae2 |
644 | anImmFbos[0] = NULL; |
645 | anImmFbos[1] = NULL; |
646 | anImmFbosOit[0] = NULL; |
647 | anImmFbosOit[1] = NULL; |
c357e426 |
648 | } |
649 | |
650 | if (aCtx->arbFBO != NULL) |
651 | { |
652 | aCtx->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
653 | } |
654 | #if !defined(GL_ES_VERSION_2_0) |
655 | if (anImmFbos[0] == NULL) |
656 | { |
657 | aCtx->SetReadDrawBuffer (aStereoMode == Graphic3d_StereoMode_QuadBuffer ? GL_BACK_LEFT : GL_BACK); |
658 | } |
659 | #endif |
56689b27 |
660 | |
661 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
662 | anImmFbos[0] != NULL ? myRenderParams.RenderResolutionScale : 1.0f); |
c357e426 |
663 | toSwap = redrawImmediate (Graphic3d_Camera::Projection_MonoLeftEye, |
664 | aMainFbos[0], |
665 | anImmFbos[0], |
a1073ae2 |
666 | anImmFbosOit[0], |
c357e426 |
667 | Standard_True) || toSwap; |
668 | if (aStereoMode == Graphic3d_StereoMode_SoftPageFlip |
669 | && toSwap |
670 | && !aCtx->caps->buffersNoSwap) |
671 | { |
672 | aCtx->SwapBuffers(); |
673 | } |
674 | |
675 | if (aCtx->arbFBO != NULL) |
676 | { |
677 | aCtx->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
678 | } |
679 | #if !defined(GL_ES_VERSION_2_0) |
680 | if (anImmFbos[1] == NULL) |
681 | { |
682 | aCtx->SetReadDrawBuffer (aStereoMode == Graphic3d_StereoMode_QuadBuffer ? GL_BACK_RIGHT : GL_BACK); |
683 | } |
684 | #endif |
56689b27 |
685 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
686 | anImmFbos[1] != NULL ? myRenderParams.RenderResolutionScale : 1.0f); |
c357e426 |
687 | toSwap = redrawImmediate (Graphic3d_Camera::Projection_MonoRightEye, |
688 | aMainFbos[1], |
689 | anImmFbos[1], |
a1073ae2 |
690 | anImmFbosOit[1], |
c357e426 |
691 | Standard_True) || toSwap; |
692 | if (anImmFbos[0] != NULL) |
693 | { |
3c4b62a4 |
694 | drawStereoPair (aFrameBuffer); |
c357e426 |
695 | } |
696 | } |
697 | else |
698 | { |
699 | OpenGl_FrameBuffer* aMainFbo = myMainSceneFbos[0]->IsValid() ? myMainSceneFbos[0].operator->() : NULL; |
700 | OpenGl_FrameBuffer* anImmFbo = aFrameBuffer; |
a1073ae2 |
701 | OpenGl_FrameBuffer* anImmFboOit = NULL; |
702 | if (myImmediateSceneFbos[0]->IsValid()) |
c357e426 |
703 | { |
a1073ae2 |
704 | anImmFbo = myImmediateSceneFbos[0].operator->(); |
705 | anImmFboOit = myImmediateSceneFbosOit[0]->IsValid() ? myImmediateSceneFbosOit[0].operator->() : NULL; |
c357e426 |
706 | } |
707 | #if !defined(GL_ES_VERSION_2_0) |
708 | if (aMainFbo == NULL) |
709 | { |
710 | aCtx->SetReadDrawBuffer (GL_BACK); |
711 | } |
712 | #endif |
56689b27 |
713 | aCtx->SetResolution (myRenderParams.Resolution, myRenderParams.ResolutionRatio(), |
714 | anImmFbo != aFrameBuffer ? myRenderParams.RenderResolutionScale : 1.0f); |
c357e426 |
715 | toSwap = redrawImmediate (aProjectType, |
716 | aMainFbo, |
717 | anImmFbo, |
a1073ae2 |
718 | anImmFboOit, |
c357e426 |
719 | Standard_True) || toSwap; |
720 | if (anImmFbo != NULL |
721 | && anImmFbo != aFrameBuffer) |
722 | { |
723 | blitBuffers (anImmFbo, aFrameBuffer, myToFlipOutput); |
724 | } |
725 | } |
726 | |
727 | // bind default FBO |
728 | bindDefaultFbo(); |
729 | |
8613985b |
730 | // reset state for safety |
731 | aCtx->BindProgram (Handle(OpenGl_ShaderProgram)()); |
dd1ae9df |
732 | if (aCtx->caps->ffpEnable) |
733 | { |
734 | aCtx->ShaderManager()->PushState (Handle(OpenGl_ShaderProgram)()); |
735 | } |
8613985b |
736 | |
c357e426 |
737 | if (toSwap && !aCtx->caps->buffersNoSwap) |
738 | { |
739 | aCtx->SwapBuffers(); |
740 | } |
741 | else |
742 | { |
743 | aCtx->core11fwd->glFlush(); |
744 | } |
5e30547b |
745 | aCtx->FrameStats()->FrameEnd (myWorkspace->View(), true); |
c357e426 |
746 | |
747 | myWasRedrawnGL = Standard_True; |
748 | } |
749 | |
750 | // ======================================================================= |
751 | // function : redraw |
752 | // purpose : |
753 | // ======================================================================= |
a1073ae2 |
754 | void OpenGl_View::redraw (const Graphic3d_Camera::Projection theProjection, |
755 | OpenGl_FrameBuffer* theReadDrawFbo, |
756 | OpenGl_FrameBuffer* theOitAccumFbo) |
c357e426 |
757 | { |
758 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
759 | if (theReadDrawFbo != NULL) |
760 | { |
761 | theReadDrawFbo->BindBuffer (aCtx); |
762 | theReadDrawFbo->SetupViewport (aCtx); |
763 | } |
764 | else |
765 | { |
3bffef55 |
766 | const Standard_Integer aViewport[4] = { 0, 0, myWindow->Width(), myWindow->Height() }; |
767 | aCtx->ResizeViewport (aViewport); |
c357e426 |
768 | } |
769 | |
770 | // request reset of material |
8613985b |
771 | aCtx->ShaderManager()->UpdateMaterialState(); |
772 | |
c357e426 |
773 | myWorkspace->UseZBuffer() = Standard_True; |
774 | myWorkspace->UseDepthWrite() = Standard_True; |
775 | GLbitfield toClear = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT; |
776 | glDepthFunc (GL_LEQUAL); |
777 | glDepthMask (GL_TRUE); |
778 | glEnable (GL_DEPTH_TEST); |
779 | |
780 | #if !defined(GL_ES_VERSION_2_0) |
781 | glClearDepth (1.0); |
782 | #else |
783 | glClearDepthf (1.0f); |
784 | #endif |
785 | |
8613985b |
786 | const OpenGl_Vec4& aBgColor = myBgColor; |
787 | glClearColor (aBgColor.r(), aBgColor.g(), aBgColor.b(), 0.0f); |
c357e426 |
788 | |
789 | glClear (toClear); |
790 | |
a1073ae2 |
791 | render (theProjection, theReadDrawFbo, theOitAccumFbo, Standard_False); |
c357e426 |
792 | } |
793 | |
794 | // ======================================================================= |
795 | // function : redrawMonoImmediate |
796 | // purpose : |
797 | // ======================================================================= |
798 | bool OpenGl_View::redrawImmediate (const Graphic3d_Camera::Projection theProjection, |
a1073ae2 |
799 | OpenGl_FrameBuffer* theReadFbo, |
800 | OpenGl_FrameBuffer* theDrawFbo, |
801 | OpenGl_FrameBuffer* theOitAccumFbo, |
802 | const Standard_Boolean theIsPartialUpdate) |
c357e426 |
803 | { |
804 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
805 | GLboolean toCopyBackToFront = GL_FALSE; |
521b0d7f |
806 | if (theDrawFbo == theReadFbo |
807 | && theDrawFbo != NULL) |
c357e426 |
808 | { |
809 | myBackBufferRestored = Standard_False; |
810 | } |
811 | else if (theReadFbo != NULL |
812 | && theReadFbo->IsValid() |
813 | && aCtx->IsRender()) |
814 | { |
815 | if (!blitBuffers (theReadFbo, theDrawFbo)) |
816 | { |
817 | return true; |
818 | } |
819 | } |
820 | else if (theDrawFbo == NULL) |
821 | { |
822 | #if !defined(GL_ES_VERSION_2_0) |
823 | aCtx->core11fwd->glGetBooleanv (GL_DOUBLEBUFFER, &toCopyBackToFront); |
824 | #endif |
6cde53c4 |
825 | if (toCopyBackToFront |
826 | && myTransientDrawToFront) |
c357e426 |
827 | { |
828 | if (!HasImmediateStructures() |
829 | && !theIsPartialUpdate) |
830 | { |
831 | // prefer Swap Buffers within Redraw in compatibility mode (without FBO) |
832 | return true; |
833 | } |
a0b49de4 |
834 | if (!copyBackToFront()) |
835 | { |
836 | toCopyBackToFront = GL_FALSE; |
837 | myBackBufferRestored = Standard_False; |
838 | } |
c357e426 |
839 | } |
840 | else |
841 | { |
842 | myBackBufferRestored = Standard_False; |
843 | } |
844 | } |
845 | else |
846 | { |
847 | myBackBufferRestored = Standard_False; |
848 | } |
849 | myIsImmediateDrawn = Standard_True; |
850 | |
851 | myWorkspace->UseZBuffer() = Standard_True; |
852 | myWorkspace->UseDepthWrite() = Standard_True; |
853 | glDepthFunc (GL_LEQUAL); |
854 | glDepthMask (GL_TRUE); |
855 | glEnable (GL_DEPTH_TEST); |
856 | #if !defined(GL_ES_VERSION_2_0) |
857 | glClearDepth (1.0); |
858 | #else |
859 | glClearDepthf (1.0f); |
860 | #endif |
861 | |
a1073ae2 |
862 | render (theProjection, theDrawFbo, theOitAccumFbo, Standard_True); |
c357e426 |
863 | |
864 | return !toCopyBackToFront; |
865 | } |
866 | |
867 | //======================================================================= |
868 | //function : Render |
869 | //purpose : |
870 | //======================================================================= |
871 | void OpenGl_View::render (Graphic3d_Camera::Projection theProjection, |
872 | OpenGl_FrameBuffer* theOutputFBO, |
a1073ae2 |
873 | OpenGl_FrameBuffer* theOitAccumFbo, |
c357e426 |
874 | const Standard_Boolean theToDrawImmediate) |
875 | { |
876 | // ================================== |
877 | // Step 1: Prepare for render |
878 | // ================================== |
879 | |
880 | const Handle(OpenGl_Context)& aContext = myWorkspace->GetGlContext(); |
2a332745 |
881 | aContext->SetAllowSampleAlphaToCoverage (myRenderParams.ToEnableAlphaToCoverage |
882 | && theOutputFBO != NULL |
883 | && theOutputFBO->NbSamples() != 0); |
c357e426 |
884 | |
885 | #if !defined(GL_ES_VERSION_2_0) |
886 | // Disable current clipping planes |
887 | if (aContext->core11 != NULL) |
888 | { |
889 | const Standard_Integer aMaxPlanes = aContext->MaxClipPlanes(); |
890 | for (Standard_Integer aClipPlaneId = GL_CLIP_PLANE0; aClipPlaneId < GL_CLIP_PLANE0 + aMaxPlanes; ++aClipPlaneId) |
891 | { |
892 | aContext->core11fwd->glDisable (aClipPlaneId); |
893 | } |
894 | } |
895 | #endif |
896 | |
4ecf34cc |
897 | // update states of OpenGl_BVHTreeSelector (frustum culling algorithm); |
898 | // note that we pass here window dimensions ignoring Graphic3d_RenderingParams::RenderResolutionScale |
c357e426 |
899 | myBVHSelector.SetViewVolume (myCamera); |
4ecf34cc |
900 | myBVHSelector.SetViewportSize (myWindow->Width(), myWindow->Height(), myRenderParams.ResolutionRatio()); |
2b8832bb |
901 | myBVHSelector.CacheClipPtsProjections(); |
c357e426 |
902 | |
992ed6b3 |
903 | const Handle(OpenGl_ShaderManager)& aManager = aContext->ShaderManager(); |
dc89236f |
904 | const Handle(Graphic3d_LightSet)& aLights = myShadingModel == Graphic3d_TOSM_UNLIT ? myNoShadingLight : myLights; |
992ed6b3 |
905 | Standard_Size aLightsRevision = 0; |
906 | if (!aLights.IsNull()) |
c357e426 |
907 | { |
992ed6b3 |
908 | aLightsRevision = aLights->UpdateRevision(); |
909 | } |
910 | if (StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()) != myLastLightSourceState |
911 | || aLightsRevision != myLightsRevision) |
912 | { |
913 | myLightsRevision = aLightsRevision; |
914 | aManager->UpdateLightSourceStateTo (aLights); |
c357e426 |
915 | myLastLightSourceState = StateInfo (myCurrLightSourceState, aManager->LightSourceState().Index()); |
916 | } |
917 | |
918 | // Update matrices if camera has changed. |
919 | Graphic3d_WorldViewProjState aWVPState = myCamera->WorldViewProjState(); |
7c3ef2f7 |
920 | if (myWorldViewProjState != aWVPState) |
c357e426 |
921 | { |
bf02aa7d |
922 | myAccumFrames = 0; |
7c3ef2f7 |
923 | myWorldViewProjState = aWVPState; |
c357e426 |
924 | } |
925 | |
7c3ef2f7 |
926 | myLocalOrigin.SetCoord (0.0, 0.0, 0.0); |
927 | aContext->ProjectionState.SetCurrent (myCamera->ProjectionMatrixF()); |
928 | aContext->WorldViewState .SetCurrent (myCamera->OrientationMatrixF()); |
929 | aContext->ApplyProjectionMatrix(); |
930 | aContext->ApplyWorldViewMatrix(); |
c357e426 |
931 | if (aManager->ModelWorldState().Index() == 0) |
932 | { |
933 | aContext->ShaderManager()->UpdateModelWorldStateTo (OpenGl_Mat4()); |
934 | } |
935 | |
c357e426 |
936 | // ==================================== |
937 | // Step 2: Redraw background |
938 | // ==================================== |
939 | |
940 | // Render background |
941 | if (!theToDrawImmediate) |
942 | { |
a521d90d |
943 | drawBackground (myWorkspace); |
c357e426 |
944 | } |
945 | |
946 | #if !defined(GL_ES_VERSION_2_0) |
947 | // Switch off lighting by default |
dd1ae9df |
948 | if (aContext->core11 != NULL |
949 | && aContext->caps->ffpEnable) |
c357e426 |
950 | { |
951 | glDisable(GL_LIGHTING); |
952 | } |
953 | #endif |
954 | |
955 | // ================================= |
956 | // Step 3: Redraw main plane |
957 | // ================================= |
958 | |
959 | // Setup face culling |
960 | GLboolean isCullFace = GL_FALSE; |
961 | if (myBackfacing != Graphic3d_TOBM_AUTOMATIC) |
962 | { |
963 | isCullFace = glIsEnabled (GL_CULL_FACE); |
964 | if (myBackfacing == Graphic3d_TOBM_DISABLE) |
965 | { |
966 | glEnable (GL_CULL_FACE); |
967 | glCullFace (GL_BACK); |
968 | } |
969 | else |
970 | glDisable (GL_CULL_FACE); |
971 | } |
972 | |
973 | #if !defined(GL_ES_VERSION_2_0) |
974 | // if the view is scaled normal vectors are scaled to unit |
975 | // length for correct displaying of shaded objects |
976 | const gp_Pnt anAxialScale = myCamera->AxialScale(); |
977 | if (anAxialScale.X() != 1.F || |
978 | anAxialScale.Y() != 1.F || |
979 | anAxialScale.Z() != 1.F) |
980 | { |
981 | aContext->SetGlNormalizeEnabled (Standard_True); |
982 | } |
983 | else |
984 | { |
985 | aContext->SetGlNormalizeEnabled (Standard_False); |
986 | } |
987 | |
c357e426 |
988 | // Apply InteriorShadingMethod |
989 | if (aContext->core11 != NULL) |
990 | { |
991 | aContext->core11->glShadeModel (myShadingModel == Graphic3d_TOSM_FACET |
dc89236f |
992 | || myShadingModel == Graphic3d_TOSM_UNLIT ? GL_FLAT : GL_SMOOTH); |
c357e426 |
993 | } |
994 | #endif |
995 | |
996 | aManager->SetShadingModel (myShadingModel); |
c357e426 |
997 | |
998 | // Redraw 3d scene |
999 | if (theProjection == Graphic3d_Camera::Projection_MonoLeftEye) |
1000 | { |
1001 | aContext->ProjectionState.SetCurrent (myCamera->ProjectionStereoLeftF()); |
1002 | aContext->ApplyProjectionMatrix(); |
1003 | } |
1004 | else if (theProjection == Graphic3d_Camera::Projection_MonoRightEye) |
1005 | { |
1006 | aContext->ProjectionState.SetCurrent (myCamera->ProjectionStereoRightF()); |
1007 | aContext->ApplyProjectionMatrix(); |
1008 | } |
83da37b1 |
1009 | |
1010 | myWorkspace->SetEnvironmentTexture (myTextureEnv); |
1011 | |
a1073ae2 |
1012 | renderScene (theProjection, theOutputFBO, theOitAccumFbo, theToDrawImmediate); |
c357e426 |
1013 | |
cc8cbabe |
1014 | myWorkspace->SetEnvironmentTexture (Handle(OpenGl_TextureSet)()); |
83da37b1 |
1015 | |
c357e426 |
1016 | // =============================== |
1017 | // Step 4: Trihedron |
1018 | // =============================== |
1019 | |
1020 | // Resetting GL parameters according to the default aspects |
1021 | // in order to synchronize GL state with the graphic driver state |
1022 | // before drawing auxiliary stuff (trihedrons, overlayer) |
c357e426 |
1023 | myWorkspace->ResetAppliedAspect(); |
1024 | |
c357e426 |
1025 | // Render trihedron |
1026 | if (!theToDrawImmediate) |
1027 | { |
1028 | renderTrihedron (myWorkspace); |
1029 | |
1030 | // Restore face culling |
1031 | if (myBackfacing != Graphic3d_TOBM_AUTOMATIC) |
1032 | { |
1033 | if (isCullFace) |
1034 | { |
1035 | glEnable (GL_CULL_FACE); |
1036 | glCullFace (GL_BACK); |
1037 | } |
1038 | else |
1039 | glDisable (GL_CULL_FACE); |
1040 | } |
1041 | } |
15669413 |
1042 | else |
1043 | { |
1044 | renderFrameStats(); |
1045 | } |
c357e426 |
1046 | |
c40eb6b9 |
1047 | myWorkspace->ResetAppliedAspect(); |
2a332745 |
1048 | aContext->SetAllowSampleAlphaToCoverage (false); |
c40eb6b9 |
1049 | aContext->SetSampleAlphaToCoverage (false); |
1050 | |
8613985b |
1051 | // reset FFP state for safety |
1052 | aContext->BindProgram (Handle(OpenGl_ShaderProgram)()); |
dd1ae9df |
1053 | if (aContext->caps->ffpEnable) |
1054 | { |
1055 | aContext->ShaderManager()->PushState (Handle(OpenGl_ShaderProgram)()); |
1056 | } |
8613985b |
1057 | |
c357e426 |
1058 | // ============================================================== |
1059 | // Step 6: Keep shader manager informed about last View |
1060 | // ============================================================== |
1061 | |
1062 | if (!aManager.IsNull()) |
1063 | { |
1064 | aManager->SetLastView (this); |
1065 | } |
1066 | } |
1067 | |
1068 | // ======================================================================= |
1069 | // function : InvalidateBVHData |
1070 | // purpose : |
1071 | // ======================================================================= |
1072 | void OpenGl_View::InvalidateBVHData (const Graphic3d_ZLayerId theLayerId) |
1073 | { |
1074 | myZLayers.InvalidateBVHData (theLayerId); |
1075 | } |
1076 | |
1077 | //======================================================================= |
1078 | //function : renderStructs |
1079 | //purpose : |
1080 | //======================================================================= |
bf02aa7d |
1081 | void OpenGl_View::renderStructs (Graphic3d_Camera::Projection theProjection, |
1082 | OpenGl_FrameBuffer* theReadDrawFbo, |
a1073ae2 |
1083 | OpenGl_FrameBuffer* theOitAccumFbo, |
bf02aa7d |
1084 | const Standard_Boolean theToDrawImmediate) |
c357e426 |
1085 | { |
0de16e29 |
1086 | myZLayers.UpdateCulling (myWorkspace, theToDrawImmediate); |
c357e426 |
1087 | if ( myZLayers.NbStructures() <= 0 ) |
1088 | return; |
1089 | |
1090 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
c357e426 |
1091 | Standard_Boolean toRenderGL = theToDrawImmediate || |
1092 | myRenderParams.Method != Graphic3d_RM_RAYTRACING || |
1093 | myRaytraceInitStatus == OpenGl_RT_FAIL || |
1094 | aCtx->IsFeedback(); |
1095 | |
1096 | if (!toRenderGL) |
1097 | { |
66d1cdc6 |
1098 | const Standard_Integer aSizeX = theReadDrawFbo != NULL ? theReadDrawFbo->GetVPSizeX() : myWindow->Width(); |
1099 | const Standard_Integer aSizeY = theReadDrawFbo != NULL ? theReadDrawFbo->GetVPSizeY() : myWindow->Height(); |
1100 | |
1101 | toRenderGL = !initRaytraceResources (aSizeX, aSizeY, aCtx) |
1102 | || !updateRaytraceGeometry (OpenGl_GUM_CHECK, myId, aCtx); |
c357e426 |
1103 | |
1104 | toRenderGL |= !myIsRaytraceDataValid; // if no ray-trace data use OpenGL |
1105 | |
1106 | if (!toRenderGL) |
1107 | { |
3c4b62a4 |
1108 | myOpenGlFBO ->InitLazy (aCtx, aSizeX, aSizeY, myFboColorFormat, myFboDepthFormat, 0); |
c357e426 |
1109 | |
c357e426 |
1110 | if (theReadDrawFbo != NULL) |
1111 | theReadDrawFbo->UnbindBuffer (aCtx); |
1112 | |
1113 | // Prepare preliminary OpenGL output |
1114 | if (aCtx->arbFBOBlit != NULL) |
1115 | { |
1116 | // Render bottom OSD layer |
a1073ae2 |
1117 | myZLayers.Render (myWorkspace, theToDrawImmediate, OpenGl_LF_Bottom, theReadDrawFbo, theOitAccumFbo); |
c357e426 |
1118 | |
1b661a81 |
1119 | const Standard_Integer aPrevFilter = myWorkspace->RenderFilter() & ~(Standard_Integer )(OpenGl_RenderFilter_NonRaytraceableOnly); |
1120 | myWorkspace->SetRenderFilter (aPrevFilter | OpenGl_RenderFilter_NonRaytraceableOnly); |
c357e426 |
1121 | { |
1122 | if (theReadDrawFbo != NULL) |
1123 | { |
3a9b5dc8 |
1124 | theReadDrawFbo->BindDrawBuffer (aCtx); |
c357e426 |
1125 | } |
1126 | else |
1127 | { |
3a9b5dc8 |
1128 | aCtx->arbFBO->glBindFramebuffer (GL_DRAW_FRAMEBUFFER, 0); |
c357e426 |
1129 | } |
1130 | |
c357e426 |
1131 | // Render non-polygonal elements in default layer |
a1073ae2 |
1132 | myZLayers.Render (myWorkspace, theToDrawImmediate, OpenGl_LF_Default, theReadDrawFbo, theOitAccumFbo); |
c357e426 |
1133 | } |
1b661a81 |
1134 | myWorkspace->SetRenderFilter (aPrevFilter); |
c357e426 |
1135 | } |
1136 | |
1137 | if (theReadDrawFbo != NULL) |
1138 | { |
1139 | theReadDrawFbo->BindBuffer (aCtx); |
1140 | } |
1141 | else |
1142 | { |
1143 | aCtx->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, 0); |
1144 | } |
1145 | |
f55ba97f |
1146 | // Reset OpenGl aspects state to default to avoid enabling of |
1147 | // backface culling which is not supported in ray-tracing. |
1148 | myWorkspace->ResetAppliedAspect(); |
1149 | |
c357e426 |
1150 | // Ray-tracing polygonal primitive arrays |
bf02aa7d |
1151 | raytrace (aSizeX, aSizeY, theProjection, theReadDrawFbo, aCtx); |
c357e426 |
1152 | |
1153 | // Render upper (top and topmost) OpenGL layers |
a1073ae2 |
1154 | myZLayers.Render (myWorkspace, theToDrawImmediate, OpenGl_LF_Upper, theReadDrawFbo, theOitAccumFbo); |
c357e426 |
1155 | } |
1156 | } |
1157 | |
1158 | // Redraw 3D scene using OpenGL in standard |
1159 | // mode or in case of ray-tracing failure |
1160 | if (toRenderGL) |
1161 | { |
a1073ae2 |
1162 | myZLayers.Render (myWorkspace, theToDrawImmediate, OpenGl_LF_All, theReadDrawFbo, theOitAccumFbo); |
c357e426 |
1163 | |
1164 | // Set flag that scene was redrawn by standard pipeline |
1165 | myWasRedrawnGL = Standard_True; |
1166 | } |
1167 | } |
1168 | |
1169 | //======================================================================= |
1170 | //function : renderTrihedron |
1171 | //purpose : |
1172 | //======================================================================= |
1173 | void OpenGl_View::renderTrihedron (const Handle(OpenGl_Workspace) &theWorkspace) |
1174 | { |
c357e426 |
1175 | if (myToShowGradTrihedron) |
1176 | { |
1177 | myGraduatedTrihedron.Render (theWorkspace); |
1178 | } |
1179 | } |
1180 | |
15669413 |
1181 | //======================================================================= |
1182 | //function : renderFrameStats |
1183 | //purpose : |
1184 | //======================================================================= |
1185 | void OpenGl_View::renderFrameStats() |
1186 | { |
1187 | if (myRenderParams.ToShowStats |
1188 | && myRenderParams.CollectedStats != Graphic3d_RenderingParams::PerfCounters_NONE) |
1189 | { |
1190 | myFrameStatsPrs.Update (myWorkspace); |
1191 | myFrameStatsPrs.Render (myWorkspace); |
1192 | } |
1193 | } |
1194 | |
c357e426 |
1195 | // ======================================================================= |
1196 | // function : Invalidate |
1197 | // purpose : |
1198 | // ======================================================================= |
1199 | void OpenGl_View::Invalidate() |
1200 | { |
1201 | myBackBufferRestored = Standard_False; |
1202 | } |
1203 | |
1204 | //======================================================================= |
1205 | //function : renderScene |
1206 | //purpose : |
1207 | //======================================================================= |
bf02aa7d |
1208 | void OpenGl_View::renderScene (Graphic3d_Camera::Projection theProjection, |
1209 | OpenGl_FrameBuffer* theReadDrawFbo, |
a1073ae2 |
1210 | OpenGl_FrameBuffer* theOitAccumFbo, |
bf02aa7d |
1211 | const Standard_Boolean theToDrawImmediate) |
c357e426 |
1212 | { |
1213 | const Handle(OpenGl_Context)& aContext = myWorkspace->GetGlContext(); |
1214 | |
c357e426 |
1215 | // Specify clipping planes in view transformation space |
25c35042 |
1216 | aContext->ChangeClipping().Reset (myClipPlanes); |
3202bf1e |
1217 | if (!myClipPlanes.IsNull() |
1218 | && !myClipPlanes->IsEmpty()) |
c357e426 |
1219 | { |
deb02f86 |
1220 | aContext->ShaderManager()->UpdateClippingState(); |
c357e426 |
1221 | } |
1222 | |
a1073ae2 |
1223 | renderStructs (theProjection, theReadDrawFbo, theOitAccumFbo, theToDrawImmediate); |
cc8cbabe |
1224 | aContext->BindTextures (Handle(OpenGl_TextureSet)()); |
c357e426 |
1225 | |
c357e426 |
1226 | // Apply restored view matrix. |
1227 | aContext->ApplyWorldViewMatrix(); |
1228 | |
25c35042 |
1229 | aContext->ChangeClipping().Reset (Handle(Graphic3d_SequenceOfHClipPlane)()); |
3202bf1e |
1230 | if (!myClipPlanes.IsNull() |
1231 | && !myClipPlanes->IsEmpty()) |
deb02f86 |
1232 | { |
1233 | aContext->ShaderManager()->RevertClippingState(); |
deb02f86 |
1234 | } |
c357e426 |
1235 | } |
1236 | |
1237 | // ======================================================================= |
1238 | // function : bindDefaultFbo |
1239 | // purpose : |
1240 | // ======================================================================= |
1241 | void OpenGl_View::bindDefaultFbo (OpenGl_FrameBuffer* theCustomFbo) |
1242 | { |
1243 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
1244 | OpenGl_FrameBuffer* anFbo = (theCustomFbo != NULL && theCustomFbo->IsValid()) |
1245 | ? theCustomFbo |
1246 | : (!aCtx->DefaultFrameBuffer().IsNull() |
1247 | && aCtx->DefaultFrameBuffer()->IsValid() |
1248 | ? aCtx->DefaultFrameBuffer().operator->() |
1249 | : NULL); |
1250 | if (anFbo != NULL) |
1251 | { |
1252 | anFbo->BindBuffer (aCtx); |
521b0d7f |
1253 | anFbo->SetupViewport (aCtx); |
c357e426 |
1254 | } |
1255 | else |
1256 | { |
1257 | #if !defined(GL_ES_VERSION_2_0) |
1258 | aCtx->SetReadDrawBuffer (GL_BACK); |
1259 | #else |
1260 | if (aCtx->arbFBO != NULL) |
1261 | { |
1262 | aCtx->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
1263 | } |
1264 | #endif |
3bffef55 |
1265 | const Standard_Integer aViewport[4] = { 0, 0, myWindow->Width(), myWindow->Height() }; |
1266 | aCtx->ResizeViewport (aViewport); |
c357e426 |
1267 | } |
c357e426 |
1268 | } |
1269 | |
1270 | // ======================================================================= |
1271 | // function : initBlitQuad |
1272 | // purpose : |
1273 | // ======================================================================= |
1274 | OpenGl_VertexBuffer* OpenGl_View::initBlitQuad (const Standard_Boolean theToFlip) |
1275 | { |
1276 | OpenGl_VertexBuffer* aVerts = NULL; |
1277 | if (!theToFlip) |
1278 | { |
1279 | aVerts = &myFullScreenQuad; |
1280 | if (!aVerts->IsValid()) |
1281 | { |
1282 | OpenGl_Vec4 aQuad[4] = |
1283 | { |
1284 | OpenGl_Vec4( 1.0f, -1.0f, 1.0f, 0.0f), |
1285 | OpenGl_Vec4( 1.0f, 1.0f, 1.0f, 1.0f), |
1286 | OpenGl_Vec4(-1.0f, -1.0f, 0.0f, 0.0f), |
1287 | OpenGl_Vec4(-1.0f, 1.0f, 0.0f, 1.0f) |
1288 | }; |
1289 | aVerts->Init (myWorkspace->GetGlContext(), 4, 4, aQuad[0].GetData()); |
1290 | } |
1291 | } |
1292 | else |
1293 | { |
1294 | aVerts = &myFullScreenQuadFlip; |
1295 | if (!aVerts->IsValid()) |
1296 | { |
1297 | OpenGl_Vec4 aQuad[4] = |
1298 | { |
1299 | OpenGl_Vec4( 1.0f, -1.0f, 1.0f, 1.0f), |
1300 | OpenGl_Vec4( 1.0f, 1.0f, 1.0f, 0.0f), |
1301 | OpenGl_Vec4(-1.0f, -1.0f, 0.0f, 1.0f), |
1302 | OpenGl_Vec4(-1.0f, 1.0f, 0.0f, 0.0f) |
1303 | }; |
1304 | aVerts->Init (myWorkspace->GetGlContext(), 4, 4, aQuad[0].GetData()); |
1305 | } |
1306 | } |
1307 | return aVerts; |
1308 | } |
1309 | |
1310 | // ======================================================================= |
1311 | // function : blitBuffers |
1312 | // purpose : |
1313 | // ======================================================================= |
1314 | bool OpenGl_View::blitBuffers (OpenGl_FrameBuffer* theReadFbo, |
1315 | OpenGl_FrameBuffer* theDrawFbo, |
1316 | const Standard_Boolean theToFlip) |
1317 | { |
1318 | Handle(OpenGl_Context) aCtx = myWorkspace->GetGlContext(); |
56689b27 |
1319 | const Standard_Integer aReadSizeX = theReadFbo != NULL ? theReadFbo->GetVPSizeX() : myWindow->Width(); |
1320 | const Standard_Integer aReadSizeY = theReadFbo != NULL ? theReadFbo->GetVPSizeY() : myWindow->Height(); |
1321 | const Standard_Integer aDrawSizeX = theDrawFbo != NULL ? theDrawFbo->GetVPSizeX() : myWindow->Width(); |
1322 | const Standard_Integer aDrawSizeY = theDrawFbo != NULL ? theDrawFbo->GetVPSizeY() : myWindow->Height(); |
c357e426 |
1323 | if (theReadFbo == NULL || aCtx->IsFeedback()) |
1324 | { |
1325 | return false; |
1326 | } |
1327 | else if (theReadFbo == theDrawFbo) |
1328 | { |
1329 | return true; |
1330 | } |
1331 | |
1332 | // clear destination before blitting |
1333 | if (theDrawFbo != NULL |
1334 | && theDrawFbo->IsValid()) |
1335 | { |
1336 | theDrawFbo->BindBuffer (aCtx); |
1337 | } |
1338 | else |
1339 | { |
1340 | aCtx->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
1341 | } |
56689b27 |
1342 | const Standard_Integer aViewport[4] = { 0, 0, aDrawSizeX, aDrawSizeY }; |
1343 | aCtx->ResizeViewport (aViewport); |
1344 | |
c357e426 |
1345 | #if !defined(GL_ES_VERSION_2_0) |
1346 | aCtx->core20fwd->glClearDepth (1.0); |
1347 | #else |
1348 | aCtx->core20fwd->glClearDepthf (1.0f); |
1349 | #endif |
1350 | aCtx->core20fwd->glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); |
1351 | |
3c4b62a4 |
1352 | if (aCtx->arbFBOBlit != NULL |
1353 | && theReadFbo->NbSamples() != 0) |
c357e426 |
1354 | { |
3c4b62a4 |
1355 | GLbitfield aCopyMask = 0; |
c357e426 |
1356 | theReadFbo->BindReadBuffer (aCtx); |
1357 | if (theDrawFbo != NULL |
1358 | && theDrawFbo->IsValid()) |
1359 | { |
1360 | theDrawFbo->BindDrawBuffer (aCtx); |
3c4b62a4 |
1361 | if (theDrawFbo->HasColor() |
1362 | && theReadFbo->HasColor()) |
1363 | { |
1364 | aCopyMask |= GL_COLOR_BUFFER_BIT; |
1365 | } |
1366 | if (theDrawFbo->HasDepth() |
1367 | && theReadFbo->HasDepth()) |
1368 | { |
1369 | aCopyMask |= GL_DEPTH_BUFFER_BIT; |
1370 | } |
c357e426 |
1371 | } |
1372 | else |
1373 | { |
3c4b62a4 |
1374 | if (theReadFbo->HasColor()) |
1375 | { |
1376 | aCopyMask |= GL_COLOR_BUFFER_BIT; |
1377 | } |
1378 | if (theReadFbo->HasDepth()) |
1379 | { |
1380 | aCopyMask |= GL_DEPTH_BUFFER_BIT; |
1381 | } |
c357e426 |
1382 | aCtx->arbFBO->glBindFramebuffer (GL_DRAW_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
1383 | } |
3c4b62a4 |
1384 | |
c357e426 |
1385 | // we don't copy stencil buffer here... does it matter for performance? |
56689b27 |
1386 | aCtx->arbFBOBlit->glBlitFramebuffer (0, 0, aReadSizeX, aReadSizeY, |
1387 | 0, 0, aDrawSizeX, aDrawSizeY, |
3c4b62a4 |
1388 | aCopyMask, GL_NEAREST); |
7ccf8676 |
1389 | const int anErr = ::glGetError(); |
1390 | if (anErr != GL_NO_ERROR) |
1391 | { |
1392 | // glBlitFramebuffer() might fail in several cases: |
1393 | // - Both FBOs have MSAA and they are samples number does not match. |
1394 | // OCCT checks that this does not happen, |
1395 | // however some graphics drivers provide an option for overriding MSAA. |
1396 | // In this case window MSAA might be non-zero (and application can not check it) |
1397 | // and might not match MSAA of our offscreen FBOs. |
1398 | // - Pixel formats of FBOs do not match. |
1399 | // This also might happen with window has pixel format, |
1400 | // e.g. Mesa fails blitting RGBA8 -> RGB8 while other drivers support this conversion. |
1401 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() + "FBO blitting has failed [Error #" + anErr + "]\n" |
1402 | + " Please check your graphics driver settings or try updating driver."; |
1403 | if (theReadFbo->NbSamples() != 0) |
1404 | { |
1405 | myToDisableMSAA = true; |
1406 | aMsg += "\n MSAA settings should not be overridden by driver!"; |
1407 | } |
1408 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1409 | GL_DEBUG_TYPE_ERROR, |
1410 | 0, |
1411 | GL_DEBUG_SEVERITY_HIGH, |
1412 | aMsg); |
1413 | } |
1414 | |
c357e426 |
1415 | if (theDrawFbo != NULL |
3c4b62a4 |
1416 | && theDrawFbo->IsValid()) |
c357e426 |
1417 | { |
1418 | theDrawFbo->BindBuffer (aCtx); |
1419 | } |
1420 | else |
1421 | { |
1422 | aCtx->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
1423 | } |
1424 | } |
1425 | else |
c357e426 |
1426 | { |
1427 | aCtx->core20fwd->glDepthFunc (GL_ALWAYS); |
1428 | aCtx->core20fwd->glDepthMask (GL_TRUE); |
1429 | aCtx->core20fwd->glEnable (GL_DEPTH_TEST); |
1ce0716b |
1430 | #if defined(GL_ES_VERSION_2_0) |
1431 | if (!aCtx->IsGlGreaterEqual (3, 0) |
1432 | && !aCtx->extFragDepth) |
1433 | { |
1434 | aCtx->core20fwd->glDisable (GL_DEPTH_TEST); |
1435 | } |
1436 | #endif |
c357e426 |
1437 | |
cc8cbabe |
1438 | aCtx->BindTextures (Handle(OpenGl_TextureSet)()); |
c357e426 |
1439 | |
56689b27 |
1440 | const Graphic3d_TypeOfTextureFilter aFilter = (aDrawSizeX == aReadSizeX && aDrawSizeY == aReadSizeY) ? Graphic3d_TOTF_NEAREST : Graphic3d_TOTF_BILINEAR; |
1441 | const GLint aFilterGl = aFilter == Graphic3d_TOTF_NEAREST ? GL_NEAREST : GL_LINEAR; |
1442 | |
c357e426 |
1443 | OpenGl_VertexBuffer* aVerts = initBlitQuad (theToFlip); |
1444 | const Handle(OpenGl_ShaderManager)& aManager = aCtx->ShaderManager(); |
1445 | if (aVerts->IsValid() |
1446 | && aManager->BindFboBlitProgram()) |
1447 | { |
bf5f0ca2 |
1448 | aCtx->SetSampleAlphaToCoverage (false); |
cc8cbabe |
1449 | theReadFbo->ColorTexture()->Bind (aCtx, Graphic3d_TextureUnit_0); |
1450 | if (theReadFbo->ColorTexture()->Sampler()->Parameters()->Filter() != aFilter) |
56689b27 |
1451 | { |
cc8cbabe |
1452 | theReadFbo->ColorTexture()->Sampler()->Parameters()->SetFilter (aFilter); |
56689b27 |
1453 | aCtx->core20fwd->glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, aFilterGl); |
1454 | aCtx->core20fwd->glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, aFilterGl); |
1455 | } |
1456 | |
cc8cbabe |
1457 | theReadFbo->DepthStencilTexture()->Bind (aCtx, Graphic3d_TextureUnit_1); |
1458 | if (theReadFbo->DepthStencilTexture()->Sampler()->Parameters()->Filter() != aFilter) |
56689b27 |
1459 | { |
cc8cbabe |
1460 | theReadFbo->DepthStencilTexture()->Sampler()->Parameters()->SetFilter (aFilter); |
56689b27 |
1461 | aCtx->core20fwd->glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, aFilterGl); |
1462 | aCtx->core20fwd->glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, aFilterGl); |
1463 | } |
1464 | |
c357e426 |
1465 | aVerts->BindVertexAttrib (aCtx, Graphic3d_TOA_POS); |
1466 | |
1467 | aCtx->core20fwd->glDrawArrays (GL_TRIANGLE_STRIP, 0, 4); |
1468 | |
1469 | aVerts->UnbindVertexAttrib (aCtx, Graphic3d_TOA_POS); |
cc8cbabe |
1470 | theReadFbo->DepthStencilTexture()->Unbind (aCtx, Graphic3d_TextureUnit_1); |
1471 | theReadFbo->ColorTexture() ->Unbind (aCtx, Graphic3d_TextureUnit_0); |
a521d90d |
1472 | aCtx->BindProgram (NULL); |
c357e426 |
1473 | } |
1474 | else |
1475 | { |
1476 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() |
1477 | + "Error! FBO blitting has failed"; |
3b523c4c |
1478 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1479 | GL_DEBUG_TYPE_ERROR, |
c357e426 |
1480 | 0, |
3b523c4c |
1481 | GL_DEBUG_SEVERITY_HIGH, |
c357e426 |
1482 | aMsg); |
1483 | myHasFboBlit = Standard_False; |
1484 | theReadFbo->Release (aCtx.operator->()); |
1485 | return true; |
1486 | } |
1487 | } |
1488 | return true; |
1489 | } |
1490 | |
1491 | // ======================================================================= |
1492 | // function : drawStereoPair |
1493 | // purpose : |
1494 | // ======================================================================= |
3c4b62a4 |
1495 | void OpenGl_View::drawStereoPair (OpenGl_FrameBuffer* theDrawFbo) |
c357e426 |
1496 | { |
3c4b62a4 |
1497 | const Handle(OpenGl_Context)& aCtx = myWorkspace->GetGlContext(); |
1498 | bindDefaultFbo (theDrawFbo); |
c357e426 |
1499 | OpenGl_FrameBuffer* aPair[2] = |
1500 | { |
1501 | myImmediateSceneFbos[0]->IsValid() ? myImmediateSceneFbos[0].operator->() : NULL, |
1502 | myImmediateSceneFbos[1]->IsValid() ? myImmediateSceneFbos[1].operator->() : NULL |
1503 | }; |
1504 | if (aPair[0] == NULL |
1505 | || aPair[1] == NULL |
1506 | || !myTransientDrawToFront) |
1507 | { |
1508 | aPair[0] = myMainSceneFbos[0]->IsValid() ? myMainSceneFbos[0].operator->() : NULL; |
1509 | aPair[1] = myMainSceneFbos[1]->IsValid() ? myMainSceneFbos[1].operator->() : NULL; |
1510 | } |
1511 | |
1512 | if (aPair[0] == NULL |
1513 | || aPair[1] == NULL) |
1514 | { |
1515 | return; |
1516 | } |
1517 | |
3c4b62a4 |
1518 | if (aPair[0]->NbSamples() != 0) |
1519 | { |
1520 | // resolve MSAA buffers before drawing |
1521 | if (!myOpenGlFBO ->InitLazy (aCtx, aPair[0]->GetVPSizeX(), aPair[0]->GetVPSizeY(), myFboColorFormat, myFboDepthFormat, 0) |
1522 | || !myOpenGlFBO2->InitLazy (aCtx, aPair[0]->GetVPSizeX(), aPair[0]->GetVPSizeY(), myFboColorFormat, 0, 0)) |
1523 | { |
82f443b6 |
1524 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1525 | GL_DEBUG_TYPE_ERROR, |
3c4b62a4 |
1526 | 0, |
82f443b6 |
1527 | GL_DEBUG_SEVERITY_HIGH, |
3c4b62a4 |
1528 | "Error! Unable to allocate FBO for blitting stereo pair"); |
1529 | bindDefaultFbo (theDrawFbo); |
1530 | return; |
1531 | } |
1532 | |
1533 | if (!blitBuffers (aPair[0], myOpenGlFBO .operator->(), Standard_False) |
1534 | || !blitBuffers (aPair[1], myOpenGlFBO2.operator->(), Standard_False)) |
1535 | { |
1536 | bindDefaultFbo (theDrawFbo); |
1537 | return; |
1538 | } |
1539 | |
1540 | aPair[0] = myOpenGlFBO .operator->(); |
1541 | aPair[1] = myOpenGlFBO2.operator->(); |
1542 | bindDefaultFbo (theDrawFbo); |
1543 | } |
1544 | |
c357e426 |
1545 | struct |
1546 | { |
1547 | Standard_Integer left; |
1548 | Standard_Integer top; |
1549 | Standard_Integer right; |
1550 | Standard_Integer bottom; |
1551 | Standard_Integer dx() { return right - left; } |
1552 | Standard_Integer dy() { return bottom - top; } |
1553 | } aGeom; |
1554 | |
1555 | myWindow->PlatformWindow()->Position (aGeom.left, aGeom.top, aGeom.right, aGeom.bottom); |
1556 | |
1557 | Standard_Boolean toReverse = myRenderParams.ToReverseStereo; |
1558 | const Standard_Boolean isOddY = (aGeom.top + aGeom.dy()) % 2 == 1; |
1559 | const Standard_Boolean isOddX = aGeom.left % 2 == 1; |
1560 | if (isOddY |
1561 | && (myRenderParams.StereoMode == Graphic3d_StereoMode_RowInterlaced |
1562 | || myRenderParams.StereoMode == Graphic3d_StereoMode_ChessBoard)) |
1563 | { |
1564 | toReverse = !toReverse; |
1565 | } |
1566 | if (isOddX |
1567 | && (myRenderParams.StereoMode == Graphic3d_StereoMode_ColumnInterlaced |
1568 | || myRenderParams.StereoMode == Graphic3d_StereoMode_ChessBoard)) |
1569 | { |
1570 | toReverse = !toReverse; |
1571 | } |
1572 | |
1573 | if (toReverse) |
1574 | { |
1575 | std::swap (aPair[0], aPair[1]); |
1576 | } |
1577 | |
c357e426 |
1578 | aCtx->core20fwd->glDepthFunc (GL_ALWAYS); |
1579 | aCtx->core20fwd->glDepthMask (GL_TRUE); |
1580 | aCtx->core20fwd->glEnable (GL_DEPTH_TEST); |
1581 | |
cc8cbabe |
1582 | aCtx->BindTextures (Handle(OpenGl_TextureSet)()); |
c357e426 |
1583 | OpenGl_VertexBuffer* aVerts = initBlitQuad (myToFlipOutput); |
1584 | |
1585 | const Handle(OpenGl_ShaderManager)& aManager = aCtx->ShaderManager(); |
1586 | if (aVerts->IsValid() |
1587 | && aManager->BindStereoProgram (myRenderParams.StereoMode)) |
1588 | { |
1589 | if (myRenderParams.StereoMode == Graphic3d_StereoMode_Anaglyph) |
1590 | { |
1591 | OpenGl_Mat4 aFilterL, aFilterR; |
1592 | aFilterL.SetDiagonal (Graphic3d_Vec4 (0.0f, 0.0f, 0.0f, 0.0f)); |
1593 | aFilterR.SetDiagonal (Graphic3d_Vec4 (0.0f, 0.0f, 0.0f, 0.0f)); |
1594 | switch (myRenderParams.AnaglyphFilter) |
1595 | { |
1596 | case Graphic3d_RenderingParams::Anaglyph_RedCyan_Simple: |
1597 | { |
1598 | aFilterL.SetRow (0, Graphic3d_Vec4 (1.0f, 0.0f, 0.0f, 0.0f)); |
1599 | aFilterR.SetRow (1, Graphic3d_Vec4 (0.0f, 1.0f, 0.0f, 0.0f)); |
1600 | aFilterR.SetRow (2, Graphic3d_Vec4 (0.0f, 0.0f, 1.0f, 0.0f)); |
1601 | break; |
1602 | } |
1603 | case Graphic3d_RenderingParams::Anaglyph_RedCyan_Optimized: |
1604 | { |
1605 | aFilterL.SetRow (0, Graphic3d_Vec4 ( 0.4154f, 0.4710f, 0.16666667f, 0.0f)); |
1606 | aFilterL.SetRow (1, Graphic3d_Vec4 (-0.0458f, -0.0484f, -0.0257f, 0.0f)); |
1607 | aFilterL.SetRow (2, Graphic3d_Vec4 (-0.0547f, -0.0615f, 0.0128f, 0.0f)); |
1608 | aFilterL.SetRow (3, Graphic3d_Vec4 ( 0.0f, 0.0f, 0.0f, 0.0f)); |
1609 | aFilterR.SetRow (0, Graphic3d_Vec4 (-0.01090909f, -0.03636364f, -0.00606061f, 0.0f)); |
1610 | aFilterR.SetRow (1, Graphic3d_Vec4 ( 0.37560000f, 0.73333333f, 0.01111111f, 0.0f)); |
1611 | aFilterR.SetRow (2, Graphic3d_Vec4 (-0.06510000f, -0.12870000f, 1.29710000f, 0.0f)); |
1612 | aFilterR.SetRow (3, Graphic3d_Vec4 ( 0.0f, 0.0f, 0.0f, 0.0f)); |
1613 | break; |
1614 | } |
1615 | case Graphic3d_RenderingParams::Anaglyph_YellowBlue_Simple: |
1616 | { |
1617 | aFilterL.SetRow (0, Graphic3d_Vec4 (1.0f, 0.0f, 0.0f, 0.0f)); |
1618 | aFilterL.SetRow (1, Graphic3d_Vec4 (0.0f, 1.0f, 0.0f, 0.0f)); |
1619 | aFilterR.SetRow (2, Graphic3d_Vec4 (0.0f, 0.0f, 1.0f, 0.0f)); |
1620 | break; |
1621 | } |
1622 | case Graphic3d_RenderingParams::Anaglyph_YellowBlue_Optimized: |
1623 | { |
1624 | aFilterL.SetRow (0, Graphic3d_Vec4 ( 1.062f, -0.205f, 0.299f, 0.0f)); |
1625 | aFilterL.SetRow (1, Graphic3d_Vec4 (-0.026f, 0.908f, 0.068f, 0.0f)); |
1626 | aFilterL.SetRow (2, Graphic3d_Vec4 (-0.038f, -0.173f, 0.022f, 0.0f)); |
1627 | aFilterL.SetRow (3, Graphic3d_Vec4 ( 0.0f, 0.0f, 0.0f, 0.0f)); |
1628 | aFilterR.SetRow (0, Graphic3d_Vec4 (-0.016f, -0.123f, -0.017f, 0.0f)); |
1629 | aFilterR.SetRow (1, Graphic3d_Vec4 ( 0.006f, 0.062f, -0.017f, 0.0f)); |
1630 | aFilterR.SetRow (2, Graphic3d_Vec4 ( 0.094f, 0.185f, 0.911f, 0.0f)); |
1631 | aFilterR.SetRow (3, Graphic3d_Vec4 ( 0.0f, 0.0f, 0.0f, 0.0f)); |
1632 | break; |
1633 | } |
1634 | case Graphic3d_RenderingParams::Anaglyph_GreenMagenta_Simple: |
1635 | { |
1636 | aFilterR.SetRow (0, Graphic3d_Vec4 (1.0f, 0.0f, 0.0f, 0.0f)); |
1637 | aFilterL.SetRow (1, Graphic3d_Vec4 (0.0f, 1.0f, 0.0f, 0.0f)); |
1638 | aFilterR.SetRow (2, Graphic3d_Vec4 (0.0f, 0.0f, 1.0f, 0.0f)); |
1639 | break; |
1640 | } |
1641 | case Graphic3d_RenderingParams::Anaglyph_UserDefined: |
1642 | { |
1643 | aFilterL = myRenderParams.AnaglyphLeft; |
1644 | aFilterR = myRenderParams.AnaglyphRight; |
1645 | break; |
1646 | } |
1647 | } |
1648 | aCtx->ActiveProgram()->SetUniform (aCtx, "uMultL", aFilterL); |
1649 | aCtx->ActiveProgram()->SetUniform (aCtx, "uMultR", aFilterR); |
1650 | } |
1651 | |
cc8cbabe |
1652 | aPair[0]->ColorTexture()->Bind (aCtx, Graphic3d_TextureUnit_0); |
1653 | aPair[1]->ColorTexture()->Bind (aCtx, Graphic3d_TextureUnit_1); |
c357e426 |
1654 | aVerts->BindVertexAttrib (aCtx, 0); |
1655 | |
1656 | aCtx->core20fwd->glDrawArrays (GL_TRIANGLE_STRIP, 0, 4); |
1657 | |
1658 | aVerts->UnbindVertexAttrib (aCtx, 0); |
cc8cbabe |
1659 | aPair[1]->ColorTexture()->Unbind (aCtx, Graphic3d_TextureUnit_1); |
1660 | aPair[0]->ColorTexture()->Unbind (aCtx, Graphic3d_TextureUnit_0); |
c357e426 |
1661 | } |
1662 | else |
1663 | { |
1664 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() |
1665 | + "Error! Anaglyph has failed"; |
3b523c4c |
1666 | aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1667 | GL_DEBUG_TYPE_ERROR, |
c357e426 |
1668 | 0, |
3b523c4c |
1669 | GL_DEBUG_SEVERITY_HIGH, |
c357e426 |
1670 | aMsg); |
1671 | } |
1672 | } |
1673 | |
1674 | // ======================================================================= |
1675 | // function : copyBackToFront |
1676 | // purpose : |
1677 | // ======================================================================= |
a0b49de4 |
1678 | bool OpenGl_View::copyBackToFront() |
c357e426 |
1679 | { |
a0b49de4 |
1680 | myIsImmediateDrawn = Standard_False; |
c357e426 |
1681 | #if !defined(GL_ES_VERSION_2_0) |
a0b49de4 |
1682 | const Handle(OpenGl_Context)& aCtx = myWorkspace->GetGlContext(); |
1683 | if (aCtx->core11 == NULL) |
1684 | { |
1685 | return false; |
1686 | } |
c357e426 |
1687 | |
1688 | OpenGl_Mat4 aProjectMat; |
1689 | Graphic3d_TransformUtils::Ortho2D (aProjectMat, |
8613985b |
1690 | 0.0f, static_cast<GLfloat> (myWindow->Width()), |
1691 | 0.0f, static_cast<GLfloat> (myWindow->Height())); |
1692 | |
c357e426 |
1693 | aCtx->WorldViewState.Push(); |
1694 | aCtx->ProjectionState.Push(); |
1695 | |
1696 | aCtx->WorldViewState.SetIdentity(); |
1697 | aCtx->ProjectionState.SetCurrent (aProjectMat); |
1698 | |
1699 | aCtx->ApplyProjectionMatrix(); |
1700 | aCtx->ApplyWorldViewMatrix(); |
1701 | |
8613985b |
1702 | // synchronize FFP state before copying pixels |
1703 | aCtx->BindProgram (Handle(OpenGl_ShaderProgram)()); |
1704 | aCtx->ShaderManager()->PushState (Handle(OpenGl_ShaderProgram)()); |
c357e426 |
1705 | aCtx->DisableFeatures(); |
1706 | |
1707 | switch (aCtx->DrawBuffer()) |
1708 | { |
1709 | case GL_BACK_LEFT: |
1710 | { |
1711 | aCtx->SetReadBuffer (GL_BACK_LEFT); |
1712 | aCtx->SetDrawBuffer (GL_FRONT_LEFT); |
1713 | break; |
1714 | } |
1715 | case GL_BACK_RIGHT: |
1716 | { |
1717 | aCtx->SetReadBuffer (GL_BACK_RIGHT); |
1718 | aCtx->SetDrawBuffer (GL_FRONT_RIGHT); |
1719 | break; |
1720 | } |
1721 | default: |
1722 | { |
1723 | aCtx->SetReadBuffer (GL_BACK); |
1724 | aCtx->SetDrawBuffer (GL_FRONT); |
1725 | break; |
1726 | } |
1727 | } |
1728 | |
a0b49de4 |
1729 | aCtx->core11->glRasterPos2i (0, 0); |
1730 | aCtx->core11->glCopyPixels (0, 0, myWindow->Width() + 1, myWindow->Height() + 1, GL_COLOR); |
1731 | //aCtx->core11->glCopyPixels (0, 0, myWidth + 1, myHeight + 1, GL_DEPTH); |
c357e426 |
1732 | |
1733 | aCtx->EnableFeatures(); |
1734 | |
1735 | aCtx->WorldViewState.Pop(); |
1736 | aCtx->ProjectionState.Pop(); |
1737 | aCtx->ApplyProjectionMatrix(); |
1738 | |
1739 | // read/write from front buffer now |
1740 | aCtx->SetReadBuffer (aCtx->DrawBuffer()); |
a0b49de4 |
1741 | return true; |
1742 | #else |
1743 | return false; |
c357e426 |
1744 | #endif |
c357e426 |
1745 | } |
a1073ae2 |
1746 | |
1747 | // ======================================================================= |
1748 | // function : checkOitCompatibility |
1749 | // purpose : |
1750 | // ======================================================================= |
1751 | Standard_Boolean OpenGl_View::checkOitCompatibility (const Handle(OpenGl_Context)& theGlContext, |
1752 | const Standard_Boolean theMSAA) |
1753 | { |
1754 | // determine if OIT is supported by current OpenGl context |
1755 | Standard_Boolean& aToDisableOIT = theMSAA ? myToDisableMSAA : myToDisableOIT; |
1756 | if (aToDisableOIT) |
1757 | { |
1758 | return Standard_False; |
1759 | } |
1760 | |
1761 | TCollection_ExtendedString aCompatibilityMsg; |
177781da |
1762 | if (theGlContext->hasFloatBuffer == OpenGl_FeatureNotAvailable |
1763 | && theGlContext->hasHalfFloatBuffer == OpenGl_FeatureNotAvailable) |
a1073ae2 |
1764 | { |
1765 | aCompatibilityMsg += "OpenGL context does not support floating-point RGBA color buffer format.\n"; |
1766 | } |
177781da |
1767 | if (theMSAA && theGlContext->hasSampleVariables == OpenGl_FeatureNotAvailable) |
a1073ae2 |
1768 | { |
1769 | aCompatibilityMsg += "Current version of GLSL does not support built-in sample variables.\n"; |
1770 | } |
177781da |
1771 | if (theGlContext->hasDrawBuffers == OpenGl_FeatureNotAvailable) |
a1073ae2 |
1772 | { |
1773 | aCompatibilityMsg += "OpenGL context does not support multiple draw buffers.\n"; |
1774 | } |
1775 | if (aCompatibilityMsg.IsEmpty()) |
1776 | { |
1777 | return Standard_True; |
1778 | } |
1779 | |
1780 | aCompatibilityMsg += " Blended order-independent transparency will not be available.\n"; |
1781 | theGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1782 | GL_DEBUG_TYPE_ERROR, |
1783 | 0, |
1784 | GL_DEBUG_SEVERITY_HIGH, |
1785 | aCompatibilityMsg); |
1786 | |
1787 | aToDisableOIT = Standard_True; |
1788 | return Standard_False; |
1789 | } |
1790 | |
1791 | // ======================================================================= |
1792 | // function : chooseOitColorConfiguration |
1793 | // purpose : |
1794 | // ======================================================================= |
1795 | bool OpenGl_View::chooseOitColorConfiguration (const Handle(OpenGl_Context)& theGlContext, |
1796 | const Standard_Integer theConfigIndex, |
1797 | OpenGl_ColorFormats& theFormats) |
1798 | { |
1799 | theFormats.Clear(); |
1800 | switch (theConfigIndex) |
1801 | { |
1802 | case 0: // choose best applicable color format combination |
1803 | { |
177781da |
1804 | theFormats.Append (theGlContext->hasHalfFloatBuffer != OpenGl_FeatureNotAvailable ? GL_RGBA16F : GL_RGBA32F); |
1805 | theFormats.Append (theGlContext->hasHalfFloatBuffer != OpenGl_FeatureNotAvailable ? GL_R16F : GL_R32F); |
a1073ae2 |
1806 | return true; |
1807 | } |
1808 | case 1: // choose non-optimal applicable color format combination |
1809 | { |
177781da |
1810 | theFormats.Append (theGlContext->hasHalfFloatBuffer != OpenGl_FeatureNotAvailable ? GL_RGBA16F : GL_RGBA32F); |
1811 | theFormats.Append (theGlContext->hasHalfFloatBuffer != OpenGl_FeatureNotAvailable ? GL_RGBA16F : GL_RGBA32F); |
a1073ae2 |
1812 | return true; |
1813 | } |
1814 | } |
1815 | return false; // color combination does not exist |
1816 | } |