0027972: Visualization - remove unused and not implemented property V3d_View::EnableG...
[occt.git] / src / OpenGl / OpenGl_View.hxx
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b311480e 1// Created on: 2011-09-20
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
2166f0fa
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16#ifndef _OpenGl_View_Header
17#define _OpenGl_View_Header
18
19#include <MMgt_TShared.hxx>
ec357c5c 20#include <Standard_Type.hxx>
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21
22#include <TColStd_Array2OfReal.hxx>
23#include <NCollection_List.hxx>
189f85a3 24#include <math_BullardGenerator.hxx>
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25
26#include <Quantity_NameOfColor.hxx>
27#include <Aspect_FillMethod.hxx>
28#include <Aspect_GradientFillMethod.hxx>
2166f0fa 29
2166f0fa 30#include <Graphic3d_CView.hxx>
a79f67f8 31#include <Graphic3d_GraduatedTrihedron.hxx>
51b10cd4 32#include <Graphic3d_SequenceOfHClipPlane.hxx>
c357e426 33#include <Graphic3d_TypeOfShadingModel.hxx>
825aa485 34#include <Graphic3d_WorldViewProjState.hxx>
c5751993 35#include <Graphic3d_ZLayerSettings.hxx>
2166f0fa 36
0b0320e7 37#include <OpenGl_AspectFace.hxx>
38#include <OpenGl_BackgroundArray.hxx>
b7cd4ba7 39#include <OpenGl_BVHTreeSelector.hxx>
c357e426 40#include <OpenGl_Context.hxx>
41#include <OpenGl_FrameBuffer.hxx>
42#include <OpenGl_GraduatedTrihedron.hxx>
59f45b7c 43#include <OpenGl_LayerList.hxx>
2166f0fa 44#include <OpenGl_Light.hxx>
73192b37 45#include <OpenGl_LineAttributes.hxx>
c357e426 46#include <OpenGl_SceneGeometry.hxx>
47#include <OpenGl_Structure.hxx>
c357e426 48#include <OpenGl_Window.hxx>
49#include <OpenGl_Workspace.hxx>
3a9b5dc8 50#include <OpenGl_TileSampler.hxx>
2166f0fa 51
c357e426 52#include <map>
53#include <set>
2166f0fa 54
b5ac8292 55struct OpenGl_Matrix;
2166f0fa 56
c357e426 57class Graphic3d_StructureManager;
58class OpenGl_GraphicDriver;
59class OpenGl_StateCounter;
60class OpenGl_RaytraceMaterial;
61class OpenGl_TriangleSet;
62class OpenGl_Workspace;
c04c30b3 63class OpenGl_View;
c357e426 64DEFINE_STANDARD_HANDLE(OpenGl_View,Graphic3d_CView)
c04c30b3 65
c357e426 66//! Implementation of OpenGl view.
67class OpenGl_View : public Graphic3d_CView
2166f0fa 68{
c357e426 69
70public:
71
72 //! Constructor.
73 Standard_EXPORT OpenGl_View (const Handle(Graphic3d_StructureManager)& theMgr,
74 const Handle(OpenGl_GraphicDriver)& theDriver,
75 const Handle(OpenGl_Caps)& theCaps,
76 Standard_Boolean& theDeviceLostFlag,
77 OpenGl_StateCounter* theCounter);
78
79 //! Default destructor.
80 Standard_EXPORT virtual ~OpenGl_View();
2166f0fa 81
62e1beed 82 Standard_EXPORT void ReleaseGlResources (const Handle(OpenGl_Context)& theCtx);
bf75be98 83
c357e426 84 //! Deletes and erases the view.
85 Standard_EXPORT virtual void Remove() Standard_OVERRIDE;
86
87 //! @param theDrawToFrontBuffer Advanced option to modify rendering mode:
88 //! 1. TRUE. Drawing immediate mode structures directly to the front buffer over the scene image.
89 //! Fast, so preferred for interactive work (used by default).
90 //! However these extra drawings will be missed in image dump since it is performed from back buffer.
91 //! Notice that since no pre-buffering used the V-Sync will be ignored and rendering could be seen
92 //! in run-time (in case of slow hardware) and/or tearing may appear.
93 //! So this is strongly recommended to draw only simple (fast) structures.
94 //! 2. FALSE. Drawing immediate mode structures to the back buffer.
95 //! The complete scene is redrawn first, so this mode is slower if scene contains complex data and/or V-Sync
96 //! is turned on. But it works in any case and is especially useful for view dump because the dump image is read
97 //! from the back buffer.
98 //! @return previous mode.
99 Standard_EXPORT Standard_Boolean SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer) Standard_OVERRIDE;
100
101 //! Creates and maps rendering window to the view.
c357e426 102 //! @param theWindow [in] the window.
103 //! @param theContext [in] the rendering context. If NULL the context will be created internally.
a521d90d 104 Standard_EXPORT virtual void SetWindow (const Handle(Aspect_Window)& theWindow,
105 const Aspect_RenderingContext theContext) Standard_OVERRIDE;
c357e426 106
107 //! Returns window associated with the view.
79104795 108 virtual Handle(Aspect_Window) Window() const Standard_OVERRIDE
109 { return myWindow->PlatformWindow(); }
c357e426 110
111 //! Returns True if the window associated to the view is defined.
79104795 112 virtual Standard_Boolean IsDefined() const Standard_OVERRIDE
113 { return !myWindow.IsNull(); }
c357e426 114
115 //! Handle changing size of the rendering window.
116 Standard_EXPORT virtual void Resized() Standard_OVERRIDE;
117
118 //! Redraw content of the view.
119 Standard_EXPORT virtual void Redraw() Standard_OVERRIDE;
120
121 //! Redraw immediate content of the view.
122 Standard_EXPORT virtual void RedrawImmediate() Standard_OVERRIDE;
123
124 //! Marks BVH tree for given priority list as dirty and marks primitive set for rebuild.
125 Standard_EXPORT virtual void Invalidate() Standard_OVERRIDE;
126
127 //! Return true if view content cache has been invalidated.
d2eddacc 128 virtual Standard_Boolean IsInvalidated() Standard_OVERRIDE { return !myBackBufferRestored; }
c357e426 129
c357e426 130 //! Returns data of a graduated trihedron
79104795 131 const Graphic3d_GraduatedTrihedron& GetGraduatedTrihedron() Standard_OVERRIDE
132 { return myGTrihedronData; }
c357e426 133
134 //! Displays Graduated Trihedron.
135 Standard_EXPORT virtual void GraduatedTrihedronDisplay (const Graphic3d_GraduatedTrihedron& theTrihedronData) Standard_OVERRIDE;
136
137 //! Erases Graduated Trihedron.
138 Standard_EXPORT virtual void GraduatedTrihedronErase() Standard_OVERRIDE;
139
140 //! Sets minimum and maximum points of scene bounding box for Graduated Trihedron stored in graphic view object.
141 //! @param theMin [in] the minimum point of scene.
142 //! @param theMax [in] the maximum point of scene.
143 Standard_EXPORT virtual void GraduatedTrihedronMinMaxValues (const Graphic3d_Vec3 theMin, const Graphic3d_Vec3 theMax) Standard_OVERRIDE;
144
c357e426 145 //! Dump active rendering buffer into specified memory buffer.
146 Standard_EXPORT virtual Standard_Boolean BufferDump (Image_PixMap& theImage,
147 const Graphic3d_BufferType& theBufferType) Standard_OVERRIDE;
148
c357e426 149 //! Export scene into the one of the Vector graphics formats (SVG, PS, PDF...).
150 //! In contrast to Bitmaps, Vector graphics is scalable (so you may got quality benefits
151 //! on printing to laser printer). Notice however that results may differ a lot and
152 //! do not contain some elements.
153 Standard_EXPORT virtual Standard_Boolean Export (const Standard_CString theFileName,
154 const Graphic3d_ExportFormat theFormat,
155 const Graphic3d_SortType theSortType = Graphic3d_ST_BSP_Tree) Standard_OVERRIDE;
156
157 //! Marks BVH tree and the set of BVH primitives of correspondent priority list with id theLayerId as outdated.
158 Standard_EXPORT virtual void InvalidateBVHData (const Standard_Integer theLayerId) Standard_OVERRIDE;
159
160 //! Insert a new top-level z layer with the given ID.
161 Standard_EXPORT virtual void AddZLayer (const Graphic3d_ZLayerId theLayerId) Standard_OVERRIDE;
162
163 //! Remove a z layer with the given ID.
164 Standard_EXPORT virtual void RemoveZLayer (const Graphic3d_ZLayerId theLayerId) Standard_OVERRIDE;
2166f0fa 165
c357e426 166 //! Sets the settings for a single Z layer of specified view.
167 Standard_EXPORT virtual void SetZLayerSettings (const Graphic3d_ZLayerId theLayerId,
168 const Graphic3d_ZLayerSettings& theSettings) Standard_OVERRIDE;
b5ac8292 169
50d06d8f 170 //! Returns the maximum Z layer ID.
171 //! First layer ID is Graphic3d_ZLayerId_Default, last ID is ZLayerMax().
172 Standard_EXPORT virtual Standard_Integer ZLayerMax() const Standard_OVERRIDE;
173
174 //! Returns the bounding box of all structures displayed in the Z layer.
175 //! Never fails. If Z layer does not exist nothing happens.
176 Standard_EXPORT virtual void InvalidateZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId) const Standard_OVERRIDE;
177
178 //! Returns the bounding box of all structures displayed in the Z layer.
3fe9ce0e 179 //! If Z layer does not exist the empty box is returned.
180 //! @param theLayerId layer identifier
181 //! @param theCamera camera definition
182 //! @param theWindowWidth viewport width (for applying transformation-persistence)
183 //! @param theWindowHeight viewport height (for applying transformation-persistence)
184 //! @param theToIncludeAuxiliary consider also auxiliary presentations (with infinite flag or with trihedron transformation persistence)
185 //! @return computed bounding box
50d06d8f 186 Standard_EXPORT virtual Graphic3d_BndBox4f ZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId,
187 const Handle(Graphic3d_Camera)& theCamera,
188 const Standard_Integer theWindowWidth,
189 const Standard_Integer theWindowHeight,
3fe9ce0e 190 const Standard_Boolean theToIncludeAuxiliary) const Standard_OVERRIDE;
50d06d8f 191
c357e426 192 //! Returns pointer to an assigned framebuffer object.
b128c892 193 Standard_EXPORT virtual Handle(Standard_Transient) FBO() const Standard_OVERRIDE;
2166f0fa 194
c357e426 195 //! Sets framebuffer object for offscreen rendering.
b128c892 196 Standard_EXPORT virtual void SetFBO (const Handle(Standard_Transient)& theFbo) Standard_OVERRIDE;
2166f0fa 197
c357e426 198 //! Generate offscreen FBO in the graphic library.
199 //! If not supported on hardware returns NULL.
b128c892 200 Standard_EXPORT virtual Handle(Standard_Transient) FBOCreate (const Standard_Integer theWidth,
201 const Standard_Integer theHeight) Standard_OVERRIDE;
2166f0fa 202
c357e426 203 //! Remove offscreen FBO from the graphic library
b128c892 204 Standard_EXPORT virtual void FBORelease (Handle(Standard_Transient)& theFbo) Standard_OVERRIDE;
2166f0fa 205
c357e426 206 //! Read offscreen FBO configuration.
b128c892 207 Standard_EXPORT virtual void FBOGetDimensions (const Handle(Standard_Transient)& theFbo,
c357e426 208 Standard_Integer& theWidth,
209 Standard_Integer& theHeight,
210 Standard_Integer& theWidthMax,
211 Standard_Integer& theHeightMax) Standard_OVERRIDE;
212
213 //! Change offscreen FBO viewport.
b128c892 214 Standard_EXPORT virtual void FBOChangeViewport (const Handle(Standard_Transient)& theFbo,
c357e426 215 const Standard_Integer theWidth,
216 const Standard_Integer theHeight) Standard_OVERRIDE;
2166f0fa 217
c357e426 218public:
2166f0fa 219
c357e426 220 //! Returns background fill color.
221 Standard_EXPORT virtual Aspect_Background Background() const Standard_OVERRIDE;
59f45b7c 222
c357e426 223 //! Sets background fill color.
224 Standard_EXPORT virtual void SetBackground (const Aspect_Background& theBackground) Standard_OVERRIDE;
59f45b7c 225
c357e426 226 //! Returns gradient background fill colors.
227 Standard_EXPORT virtual Aspect_GradientBackground GradientBackground() const Standard_OVERRIDE;
2166f0fa 228
c357e426 229 //! Sets gradient background fill colors.
230 Standard_EXPORT virtual void SetGradientBackground (const Aspect_GradientBackground& theBackground) Standard_OVERRIDE;
231
232 //! Returns background image texture file path.
233 Standard_EXPORT virtual TCollection_AsciiString BackgroundImage() Standard_OVERRIDE { return myBackgroundImagePath; }
234
235 //! Sets background image texture file path.
236 Standard_EXPORT virtual void SetBackgroundImage (const TCollection_AsciiString& theFilePath) Standard_OVERRIDE;
237
238 //! Returns background image fill style.
239 Standard_EXPORT virtual Aspect_FillMethod BackgroundImageStyle() const Standard_OVERRIDE;
240
241 //! Sets background image fill style.
242 Standard_EXPORT virtual void SetBackgroundImageStyle (const Aspect_FillMethod theFillStyle) Standard_OVERRIDE;
243
244 //! Returns environment texture set for the view.
245 Standard_EXPORT virtual Handle(Graphic3d_TextureEnv) TextureEnv() const Standard_OVERRIDE { return myTextureEnvData; }
246
247 //! Sets environment texture for the view.
248 Standard_EXPORT virtual void SetTextureEnv (const Handle(Graphic3d_TextureEnv)& theTextureEnv) Standard_OVERRIDE;
249
250 //! Returns the state of frustum culling optimization.
251 virtual Standard_Boolean IsCullingEnabled() const Standard_OVERRIDE { return myCulling; }
252
253 //! Enables or disables frustum culling optimization.
254 virtual void SetCullingEnabled (const Standard_Boolean theIsEnabled) Standard_OVERRIDE { myCulling = theIsEnabled; }
255
256 //! Returns shading model of the view.
257 virtual Graphic3d_TypeOfShadingModel ShadingModel() const Standard_OVERRIDE { return myShadingModel; }
258
259 //! Sets shading model of the view.
260 virtual void SetShadingModel (const Graphic3d_TypeOfShadingModel theModel) Standard_OVERRIDE { myShadingModel = theModel; }
261
c357e426 262 //! Return backfacing model used for the view.
263 virtual Graphic3d_TypeOfBackfacingModel BackfacingModel() const Standard_OVERRIDE { return myBackfacing; }
264
265 //! Sets backfacing model for the view.
266 virtual void SetBackfacingModel (const Graphic3d_TypeOfBackfacingModel theModel) Standard_OVERRIDE { myBackfacing = theModel; }
267
268 //! Returns camera object of the view.
269 virtual const Handle(Graphic3d_Camera)& Camera() const Standard_OVERRIDE { return myCamera; }
270
271 //! Sets camera used by the view.
272 virtual void SetCamera (const Handle(Graphic3d_Camera)& theCamera) Standard_OVERRIDE { myCamera = theCamera; }
273
c357e426 274 //! Returns list of lights of the view.
275 virtual const Graphic3d_ListOfCLight& Lights() const Standard_OVERRIDE { return myLights; }
276
277 //! Sets list of lights for the view.
278 virtual void SetLights (const Graphic3d_ListOfCLight& theLights) Standard_OVERRIDE
279 {
280 myLights = theLights;
281 myCurrLightSourceState = myStateCounter->Increment();
282 }
283
284 //! Returns list of clip planes set for the view.
3202bf1e 285 virtual const Handle(Graphic3d_SequenceOfHClipPlane)& ClipPlanes() const Standard_OVERRIDE { return myClipPlanes; }
c357e426 286
287 //! Sets list of clip planes for the view.
3202bf1e 288 virtual void SetClipPlanes (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes) Standard_OVERRIDE { myClipPlanes = thePlanes; }
c357e426 289
26d9c835 290 //! Fill in the dictionary with diagnostic info.
291 //! Should be called within rendering thread.
292 //!
293 //! This API should be used only for user output or for creating automated reports.
294 //! The format of returned information (e.g. key-value layout)
295 //! is NOT part of this API and can be changed at any time.
296 //! Thus application should not parse returned information to weed out specific parameters.
297 Standard_EXPORT virtual void DiagnosticInformation (TColStd_IndexedDataMapOfStringString& theDict,
298 Graphic3d_DiagnosticInfo theFlags) const Standard_OVERRIDE;
299
c357e426 300public:
301
302 //! Returns background color.
b6472664 303 const Quantity_ColorRGBA& BackgroundColor() const { return myBgColor; }
c357e426 304
c357e426 305 //! Change graduated trihedron.
306 OpenGl_GraduatedTrihedron& ChangeGraduatedTrihedron() { return myGraduatedTrihedron; }
307
308 void SetTextureEnv (const Handle(OpenGl_Context)& theCtx,
309 const Handle(Graphic3d_TextureEnv)& theTexture);
310
2166f0fa 311 void SetBackgroundTextureStyle (const Aspect_FillMethod FillStyle);
c357e426 312
2166f0fa 313 void SetBackgroundGradient (const Quantity_Color& AColor1, const Quantity_Color& AColor2, const Aspect_GradientFillMethod AType);
2166f0fa 314
c357e426 315 void SetBackgroundGradientType (const Aspect_GradientFillMethod AType);
2166f0fa 316
e276548b 317 //! Returns list of OpenGL Z-layers.
318 const OpenGl_LayerList& LayerList() const { return myZLayers; }
319
320 //! Returns list of openGL light sources.
321 const OpenGl_ListOfLight& LightList() const { return myLights; }
322
c357e426 323 //! Returns OpenGL window implementation.
324 const Handle(OpenGl_Window) GlWindow() const { return myWindow; }
e276548b 325
c357e426 326 //! Returns OpenGL environment map.
327 const Handle(OpenGl_Texture)& GlTextureEnv() const { return myTextureEnv; }
e276548b 328
b7cd4ba7 329 //! Returns selector for BVH tree, providing a possibility to store information
330 //! about current view volume and to detect which objects are overlapping it.
331 OpenGl_BVHTreeSelector& BVHTreeSelector() { return myBVHSelector; }
332
a1954302 333 //! Returns true if there are immediate structures to display
334 bool HasImmediateStructures() const
335 {
c3282ec1 336 return myZLayers.NbImmediateStructures() != 0;
a1954302 337 }
338
c357e426 339protected: //! @name Internal methods for managing GL resources
340
341 //! Initializes OpenGl resource for environment texture.
342 void initTextureEnv (const Handle(OpenGl_Context)& theContext);
343
a521d90d 344protected: //! @name low-level redrawing sub-routines
c357e426 345
346 //! Redraws view for the given monographic camera projection, or left/right eye.
a521d90d 347 Standard_EXPORT virtual void redraw (const Graphic3d_Camera::Projection theProjection,
348 OpenGl_FrameBuffer* theReadDrawFbo);
2166f0fa 349
c357e426 350 //! Redraws view for the given monographic camera projection, or left/right eye.
351 //!
352 //! Method will blit snapshot containing main scene (myMainSceneFbos or BackBuffer)
353 //! into presentation buffer (myMainSceneFbos -> offscreen FBO or
354 //! myMainSceneFbos -> BackBuffer or BackBuffer -> FrontBuffer),
355 //! and redraw immediate structures on top.
356 //!
357 //! When scene caching is disabled (myTransientDrawToFront, no double buffer in window, etc.),
358 //! the first step (blitting) will be skipped.
359 //!
360 //! @return false if immediate structures has been rendered directly into FrontBuffer
361 //! and Buffer Swap should not be called.
a521d90d 362 Standard_EXPORT virtual bool redrawImmediate (const Graphic3d_Camera::Projection theProjection,
363 OpenGl_FrameBuffer* theReadFbo,
364 OpenGl_FrameBuffer* theDrawFbo,
365 const Standard_Boolean theIsPartialUpdate = Standard_False);
b5ac8292 366
c357e426 367 //! Blit image from/to specified buffers.
a521d90d 368 Standard_EXPORT bool blitBuffers (OpenGl_FrameBuffer* theReadFbo,
369 OpenGl_FrameBuffer* theDrawFbo,
370 const Standard_Boolean theToFlip = Standard_False);
2166f0fa 371
c357e426 372 //! Setup default FBO.
a521d90d 373 Standard_EXPORT void bindDefaultFbo (OpenGl_FrameBuffer* theCustomFbo = NULL);
2166f0fa 374
c357e426 375protected: //! @name Rendering of GL graphics (with prepared drawing buffer).
2166f0fa 376
c357e426 377 //! Renders the graphical contents of the view into the preprepared window or framebuffer.
378 //! @param theProjection [in] the projection that should be used for rendering.
379 //! @param theReadDrawFbo [in] the framebuffer for rendering graphics.
380 //! @param theToDrawImmediate [in] the flag indicates whether the rendering performs in immediate mode.
a521d90d 381 Standard_EXPORT virtual void render (Graphic3d_Camera::Projection theProjection,
382 OpenGl_FrameBuffer* theReadDrawFbo,
383 const Standard_Boolean theToDrawImmediate);
2166f0fa 384
c357e426 385 //! Renders the graphical scene.
bf02aa7d 386 //! @param theProjection [in] the projection that is used for rendering.
c357e426 387 //! @param theReadDrawFbo [in] the framebuffer for rendering graphics.
388 //! @param theToDrawImmediate [in] the flag indicates whether the rendering performs in immediate mode.
bf02aa7d 389 Standard_EXPORT virtual void renderScene (Graphic3d_Camera::Projection theProjection,
390 OpenGl_FrameBuffer* theReadDrawFbo,
a521d90d 391 const Standard_Boolean theToDrawImmediate);
392
393 //! Draw background (gradient / image)
394 Standard_EXPORT virtual void drawBackground (const Handle(OpenGl_Workspace)& theWorkspace);
2166f0fa 395
c357e426 396 //! Render set of structures presented in the view.
bf02aa7d 397 //! @param theProjection [in] the projection that is used for rendering.
c357e426 398 //! @param theReadDrawFbo [in] the framebuffer for rendering graphics.
399 //! @param theToDrawImmediate [in] the flag indicates whether the rendering performs in immediate mode.
bf02aa7d 400 Standard_EXPORT virtual void renderStructs (Graphic3d_Camera::Projection theProjection,
401 OpenGl_FrameBuffer* theReadDrawFbo,
a521d90d 402 const Standard_Boolean theToDrawImmediate);
2166f0fa 403
c357e426 404 //! Renders trihedron.
405 void renderTrihedron (const Handle(OpenGl_Workspace) &theWorkspace);
2166f0fa 406
c357e426 407private:
392ac980 408
c357e426 409 //! Adds the structure to display lists of the view.
410 Standard_EXPORT virtual void displayStructure (const Handle(Graphic3d_CStructure)& theStructure,
411 const Standard_Integer thePriority) Standard_OVERRIDE;
412
413 //! Erases the structure from display lists of the view.
414 Standard_EXPORT virtual void eraseStructure (const Handle(Graphic3d_CStructure)& theStructure) Standard_OVERRIDE;
415
416 //! Change Z layer of a structure already presented in view.
417 Standard_EXPORT virtual void changeZLayer (const Handle(Graphic3d_CStructure)& theCStructure,
418 const Graphic3d_ZLayerId theNewLayerId) Standard_OVERRIDE;
419
420 //! Changes the priority of a structure within its Z layer in the specified view.
421 Standard_EXPORT virtual void changePriority (const Handle(Graphic3d_CStructure)& theCStructure,
422 const Standard_Integer theNewPriority) Standard_OVERRIDE;
423
50d06d8f 424 //! Returns zoom-scale factor.
425 Standard_EXPORT virtual Standard_Real considerZoomPersistenceObjects (const Graphic3d_ZLayerId theLayerId,
426 const Handle(Graphic3d_Camera)& theCamera,
427 const Standard_Integer theWindowWidth,
3fe9ce0e 428 const Standard_Integer theWindowHeight) const Standard_OVERRIDE;
50d06d8f 429
a521d90d 430private:
431
432 //! Copy content of Back buffer to the Front buffer.
433 void copyBackToFront();
434
435 //! Initialize blit quad.
436 OpenGl_VertexBuffer* initBlitQuad (const Standard_Boolean theToFlip);
437
438 //! Blend together views pair into stereo image.
3c4b62a4 439 void drawStereoPair (OpenGl_FrameBuffer* theDrawFbo);
a521d90d 440
c357e426 441protected:
442
443 OpenGl_GraphicDriver* myDriver;
444 Handle(OpenGl_Window) myWindow;
445 Handle(OpenGl_Workspace) myWorkspace;
446 Handle(OpenGl_Caps) myCaps;
447 Standard_Boolean& myDeviceLostFlag;
448 Standard_Boolean myWasRedrawnGL;
449
c357e426 450 Standard_Boolean myCulling;
451 Graphic3d_TypeOfShadingModel myShadingModel;
c357e426 452 Graphic3d_TypeOfBackfacingModel myBackfacing;
b6472664 453 Quantity_ColorRGBA myBgColor;
3202bf1e 454 Handle(Graphic3d_SequenceOfHClipPlane) myClipPlanes;
c357e426 455 Handle(Graphic3d_Camera) myCamera;
b128c892 456 Handle(OpenGl_FrameBuffer) myFBO;
c357e426 457 Standard_Boolean myToShowGradTrihedron;
458 TCollection_AsciiString myBackgroundImagePath;
459 Handle(Graphic3d_TextureEnv) myTextureEnvData;
460 Graphic3d_GraduatedTrihedron myGTrihedronData;
461
016e5959 462 OpenGl_ListOfLight myNoShadingLight;
c357e426 463 OpenGl_ListOfLight myLights;
464 OpenGl_LayerList myZLayers; //!< main list of displayed structure, sorted by layers
465
466 Graphic3d_WorldViewProjState myWorldViewProjState; //!< camera modification state
467 OpenGl_StateCounter* myStateCounter;
468 Standard_Size myCurrLightSourceState;
392ac980 469
470 typedef std::pair<Standard_Size, Standard_Size> StateInfo;
471
472 StateInfo myLastOrientationState;
473 StateInfo myLastViewMappingState;
474 StateInfo myLastLightSourceState;
30f0ad28 475
b7cd4ba7 476 //! Is needed for selection of overlapping objects and storage of the current view volume
477 OpenGl_BVHTreeSelector myBVHSelector;
478
c357e426 479 OpenGl_GraduatedTrihedron myGraduatedTrihedron;
480
481 Handle(OpenGl_Texture) myTextureEnv;
482
3a9b5dc8 483 //! Framebuffers for OpenGL output.
484 Handle(OpenGl_FrameBuffer) myOpenGlFBO;
485 Handle(OpenGl_FrameBuffer) myOpenGlFBO2;
486
c357e426 487protected: //! @name Rendering properties
488
489 //! Two framebuffers (left and right views) store cached main presentation
490 //! of the view (without presentation of immediate layers).
3c4b62a4 491 GLint myFboColorFormat; //!< sized format for color attachments
492 GLint myFboDepthFormat; //!< sized format for depth-stencil attachments
c357e426 493 Handle(OpenGl_FrameBuffer) myMainSceneFbos[2];
494 Handle(OpenGl_FrameBuffer) myImmediateSceneFbos[2]; //!< Additional buffers for immediate layer in stereo mode.
495 OpenGl_VertexBuffer myFullScreenQuad; //!< Vertices for full-screen quad rendering.
496 OpenGl_VertexBuffer myFullScreenQuadFlip;
497 Standard_Boolean myToFlipOutput; //!< Flag to draw result image upside-down
498 unsigned int myFrameCounter; //!< redraw counter, for debugging
7ccf8676 499 Standard_Boolean myHasFboBlit; //!< disable FBOs on failure
500 Standard_Boolean myToDisableMSAA; //!< disable MSAA after failure
c357e426 501 Standard_Boolean myTransientDrawToFront; //!< optimization flag for immediate mode (to render directly to the front buffer)
502 Standard_Boolean myBackBufferRestored;
503 Standard_Boolean myIsImmediateDrawn; //!< flag indicates that immediate mode buffer contains some data
504
0b0320e7 505protected: //! @name Background parameters
506
507 OpenGl_AspectFace* myTextureParams; //!< Stores texture and its parameters for textured background
508 OpenGl_BackgroundArray* myBgGradientArray; //!< Primitive array for gradient background
509 OpenGl_BackgroundArray* myBgTextureArray; //!< Primitive array for texture background
510
91c60b57 511protected: //! @name data types related to ray-tracing
512
513 //! Result of OpenGL shaders initialization.
514 enum RaytraceInitStatus
515 {
516 OpenGl_RT_NONE,
517 OpenGl_RT_INIT,
518 OpenGl_RT_FAIL
519 };
520
521 //! Describes update mode (state).
522 enum RaytraceUpdateMode
523 {
524 OpenGl_GUM_CHECK, //!< check geometry state
525 OpenGl_GUM_PREPARE, //!< collect unchanged objects
526 OpenGl_GUM_REBUILD //!< rebuild changed and new objects
527 };
528
529 //! Defines frequently used shader variables.
530 enum ShaderVariableIndex
531 {
532 OpenGl_RT_aPosition,
533
189f85a3 534 // camera position
91c60b57 535 OpenGl_RT_uOriginLT,
536 OpenGl_RT_uOriginLB,
537 OpenGl_RT_uOriginRT,
538 OpenGl_RT_uOriginRB,
539 OpenGl_RT_uDirectLT,
540 OpenGl_RT_uDirectLB,
541 OpenGl_RT_uDirectRT,
542 OpenGl_RT_uDirectRB,
3a9b5dc8 543 OpenGl_RT_uViewPrMat,
91c60b57 544 OpenGl_RT_uUnviewMat,
545
189f85a3 546 // 3D scene params
91c60b57 547 OpenGl_RT_uSceneRad,
548 OpenGl_RT_uSceneEps,
549 OpenGl_RT_uLightAmbnt,
550 OpenGl_RT_uLightCount,
551
189f85a3 552 // background params
553 OpenGl_RT_uBackColorTop,
554 OpenGl_RT_uBackColorBot,
91c60b57 555
189f85a3 556 // ray-tracing params
557 OpenGl_RT_uShadowsEnabled,
558 OpenGl_RT_uReflectEnabled,
559 OpenGl_RT_uSphereMapEnabled,
560 OpenGl_RT_uSphereMapForBack,
561 OpenGl_RT_uTexSamplersArray,
8c820969 562 OpenGl_RT_uBlockedRngEnabled,
189f85a3 563
3a9b5dc8 564 // size of render window
565 OpenGl_RT_uWinSizeX,
566 OpenGl_RT_uWinSizeY,
567
189f85a3 568 // sampled frame params
569 OpenGl_RT_uSampleWeight,
570 OpenGl_RT_uFrameRndSeed,
571
572 // adaptive FSAA params
91c60b57 573 OpenGl_RT_uOffsetX,
574 OpenGl_RT_uOffsetY,
575 OpenGl_RT_uSamples,
91c60b57 576
3a9b5dc8 577 // adaptive path tracing images
578 OpenGl_RT_uRenderImage,
579 OpenGl_RT_uOffsetImage,
580
91c60b57 581 OpenGl_RT_NbVariables // special field
582 };
583
3a9b5dc8 584 //! Defines OpenGL texture samplers.
91c60b57 585 enum ShaderSamplerNames
586 {
587 OpenGl_RT_SceneNodeInfoTexture = 0,
588 OpenGl_RT_SceneMinPointTexture = 1,
589 OpenGl_RT_SceneMaxPointTexture = 2,
590 OpenGl_RT_SceneTransformTexture = 3,
591
592 OpenGl_RT_GeometryVertexTexture = 4,
593 OpenGl_RT_GeometryNormalTexture = 5,
594 OpenGl_RT_GeometryTexCrdTexture = 6,
595 OpenGl_RT_GeometryTriangTexture = 7,
596
597 OpenGl_RT_EnvironmentMapTexture = 8,
598
599 OpenGl_RT_RaytraceMaterialTexture = 9,
600 OpenGl_RT_RaytraceLightSrcTexture = 10,
601
189f85a3 602 OpenGl_RT_FsaaInputTexture = 11,
603 OpenGl_RT_PrevAccumTexture = 12,
91c60b57 604
3a9b5dc8 605 OpenGl_RT_RaytraceDepthTexture = 13
606 };
607
608 //! Defines OpenGL image samplers.
609 enum ShaderImageNames
610 {
611 OpenGl_RT_OutputImageLft = 0,
612 OpenGl_RT_OutputImageRgh = 1,
613 OpenGl_RT_VisualErrorImage = 2,
614 OpenGl_RT_TileOffsetsImage = 3
91c60b57 615 };
616
617 //! Tool class for management of shader sources.
618 class ShaderSource
619 {
620 public:
621
189f85a3 622 //! Default shader prefix - empty string.
623 static const TCollection_AsciiString EMPTY_PREFIX;
624
91c60b57 625 //! Creates new uninitialized shader source.
626 ShaderSource()
627 {
628 //
629 }
630
73722cc9 631 public:
189f85a3 632
73722cc9 633 //! Returns error description in case of load fail.
634 const TCollection_AsciiString& ErrorDescription() const
635 {
636 return myError;
91c60b57 637 }
638
91c60b57 639 //! Returns prefix to insert before the source.
640 const TCollection_AsciiString& Prefix() const
641 {
642 return myPrefix;
643 }
644
645 //! Sets prefix to insert before the source.
646 void SetPrefix (const TCollection_AsciiString& thePrefix)
647 {
648 myPrefix = thePrefix;
649 }
650
651 //! Returns shader source combined with prefix.
652 TCollection_AsciiString Source() const;
653
654 //! Loads shader source from specified files.
73722cc9 655 Standard_Boolean Load (const TCollection_AsciiString* theFileNames, const TCollection_AsciiString& thePrefix = EMPTY_PREFIX);
91c60b57 656
657 private:
658
659 TCollection_AsciiString mySource; //!< Source string of the shader object
660 TCollection_AsciiString myPrefix; //!< Prefix to insert before the source
73722cc9 661 TCollection_AsciiString myError; //!< error state
91c60b57 662
663 };
664
665 //! Default ray-tracing depth.
666 static const Standard_Integer THE_DEFAULT_NB_BOUNCES = 3;
667
668 //! Default size of traversal stack.
f2474958 669 static const Standard_Integer THE_DEFAULT_STACK_SIZE = 10;
91c60b57 670
671 //! Compile-time ray-tracing parameters.
672 struct RaytracingParams
673 {
674 //! Actual size of traversal stack in shader program.
675 Standard_Integer StackSize;
676
677 //! Actual ray-tracing depth (number of ray bounces).
678 Standard_Integer NbBounces;
679
f483f2ed 680 //! Enables/disables light propagation through transparent media.
91c60b57 681 Standard_Boolean TransparentShadows;
682
189f85a3 683 //! Enables/disables global illumination (GI) effects.
684 Standard_Boolean GlobalIllumination;
685
f483f2ed 686 //! Enables/disables the use of OpenGL bindless textures.
687 Standard_Boolean UseBindlessTextures;
688
3a9b5dc8 689 //! Enables/disables adaptive screen sampling for path tracing.
690 Standard_Boolean AdaptiveScreenSampling;
691
91c60b57 692 //! Creates default compile-time ray-tracing parameters.
693 RaytracingParams()
694 : StackSize (THE_DEFAULT_STACK_SIZE),
695 NbBounces (THE_DEFAULT_NB_BOUNCES),
f483f2ed 696 TransparentShadows (Standard_False),
189f85a3 697 GlobalIllumination (Standard_False),
3a9b5dc8 698 UseBindlessTextures (Standard_False),
699 AdaptiveScreenSampling (Standard_False)
91c60b57 700 {
701 //
702 }
703 };
704
d4aaad5b 705 //! Describes state of OpenGL structure.
706 struct StructState
707 {
708 Standard_Size StructureState;
709 Standard_Size InstancedState;
710
711 //! Creates new structure state.
712 StructState (const Standard_Size theStructureState = 0,
713 const Standard_Size theInstancedState = 0)
714 : StructureState (theStructureState),
715 InstancedState (theInstancedState)
716 {
717 //
718 }
719
720 //! Creates new structure state.
721 StructState (const OpenGl_Structure* theStructure)
722 {
723 StructureState = theStructure->ModificationState();
724
725 InstancedState = theStructure->InstancedStructure() != NULL ?
726 theStructure->InstancedStructure()->ModificationState() : 0;
727 }
728 };
729
91c60b57 730protected: //! @name methods related to ray-tracing
731
732 //! Updates 3D scene geometry for ray-tracing.
733 Standard_Boolean updateRaytraceGeometry (const RaytraceUpdateMode theMode,
734 const Standard_Integer theViewId,
735 const Handle(OpenGl_Context)& theGlContext);
736
737 //! Updates 3D scene light sources for ray-tracing.
738 Standard_Boolean updateRaytraceLightSources (const OpenGl_Mat4& theInvModelView, const Handle(OpenGl_Context)& theGlContext);
739
740 //! Updates environment map for ray-tracing.
741 Standard_Boolean updateRaytraceEnvironmentMap (const Handle(OpenGl_Context)& theGlContext);
742
743 //! Checks to see if the OpenGL structure is modified.
744 Standard_Boolean toUpdateStructure (const OpenGl_Structure* theStructure);
745
746 //! Adds OpenGL structure to ray-traced scene geometry.
747 Standard_Boolean addRaytraceStructure (const OpenGl_Structure* theStructure,
748 const Handle(OpenGl_Context)& theGlContext);
749
750 //! Adds OpenGL groups to ray-traced scene geometry.
8c820969 751 Standard_Boolean addRaytraceGroups (const OpenGl_Structure* theStructure,
752 const OpenGl_RaytraceMaterial& theStructMat,
1f7f5a90 753 const Handle(Geom_Transformation)& theTrsf,
8c820969 754 const Handle(OpenGl_Context)& theGlContext);
91c60b57 755
756 //! Creates ray-tracing material properties.
757 OpenGl_RaytraceMaterial convertMaterial (const OpenGl_AspectFace* theAspect,
758 const Handle(OpenGl_Context)& theGlContext);
759
760 //! Adds OpenGL primitive array to ray-traced scene geometry.
761 OpenGl_TriangleSet* addRaytracePrimitiveArray (const OpenGl_PrimitiveArray* theArray,
762 const Standard_Integer theMatID,
763 const OpenGl_Mat4* theTrans);
764
765 //! Adds vertex indices from OpenGL primitive array to ray-traced scene geometry.
766 Standard_Boolean addRaytraceVertexIndices (OpenGl_TriangleSet& theSet,
767 const Standard_Integer theMatID,
768 const Standard_Integer theCount,
769 const Standard_Integer theOffset,
770 const OpenGl_PrimitiveArray& theArray);
771
772 //! Adds OpenGL triangle array to ray-traced scene geometry.
773 Standard_Boolean addRaytraceTriangleArray (OpenGl_TriangleSet& theSet,
774 const Standard_Integer theMatID,
775 const Standard_Integer theCount,
776 const Standard_Integer theOffset,
777 const Handle(Graphic3d_IndexBuffer)& theIndices);
778
779 //! Adds OpenGL triangle fan array to ray-traced scene geometry.
780 Standard_Boolean addRaytraceTriangleFanArray (OpenGl_TriangleSet& theSet,
781 const Standard_Integer theMatID,
782 const Standard_Integer theCount,
783 const Standard_Integer theOffset,
784 const Handle(Graphic3d_IndexBuffer)& theIndices);
785
786 //! Adds OpenGL triangle strip array to ray-traced scene geometry.
787 Standard_Boolean addRaytraceTriangleStripArray (OpenGl_TriangleSet& theSet,
788 const Standard_Integer theMatID,
789 const Standard_Integer theCount,
790 const Standard_Integer theOffset,
791 const Handle(Graphic3d_IndexBuffer)& theIndices);
792
793 //! Adds OpenGL quadrangle array to ray-traced scene geometry.
794 Standard_Boolean addRaytraceQuadrangleArray (OpenGl_TriangleSet& theSet,
795 const Standard_Integer theMatID,
796 const Standard_Integer theCount,
797 const Standard_Integer theOffset,
798 const Handle(Graphic3d_IndexBuffer)& theIndices);
799
800 //! Adds OpenGL quadrangle strip array to ray-traced scene geometry.
801 Standard_Boolean addRaytraceQuadrangleStripArray (OpenGl_TriangleSet& theSet,
802 const Standard_Integer theMatID,
803 const Standard_Integer theCount,
804 const Standard_Integer theOffset,
805 const Handle(Graphic3d_IndexBuffer)& theIndices);
806
807 //! Adds OpenGL polygon array to ray-traced scene geometry.
808 Standard_Boolean addRaytracePolygonArray (OpenGl_TriangleSet& theSet,
809 const Standard_Integer theMatID,
810 const Standard_Integer theCount,
811 const Standard_Integer theOffset,
812 const Handle(Graphic3d_IndexBuffer)& theIndices);
813
814 //! Uploads ray-trace data to the GPU.
815 Standard_Boolean uploadRaytraceData (const Handle(OpenGl_Context)& theGlContext);
816
817 //! Generates shader prefix based on current ray-tracing options.
818 TCollection_AsciiString generateShaderPrefix (const Handle(OpenGl_Context)& theGlContext) const;
819
820 //! Performs safe exit when shaders initialization fails.
821 Standard_Boolean safeFailBack (const TCollection_ExtendedString& theMessage,
822 const Handle(OpenGl_Context)& theGlContext);
823
824 //! Loads and compiles shader object from specified source.
825 Handle(OpenGl_ShaderObject) initShader (const GLenum theType,
826 const ShaderSource& theSource,
827 const Handle(OpenGl_Context)& theGlContext);
828
189f85a3 829 //! Creates shader program from the given vertex and fragment shaders.
830 Handle(OpenGl_ShaderProgram) initProgram (const Handle(OpenGl_Context)& theGlContext,
831 const Handle(OpenGl_ShaderObject)& theVertShader,
832 const Handle(OpenGl_ShaderObject)& theFragShader);
833
91c60b57 834 //! Initializes OpenGL/GLSL shader programs.
c357e426 835 Standard_Boolean initRaytraceResources (const Handle(OpenGl_Context)& theGlContext);
91c60b57 836
837 //! Releases OpenGL/GLSL shader programs.
d877e610 838 void releaseRaytraceResources (const Handle(OpenGl_Context)& theGlContext,
839 const Standard_Boolean theToRebuild = Standard_False);
91c60b57 840
bf02aa7d 841 //! Updates auxiliary OpenGL frame buffers.
842 Standard_Boolean updateRaytraceBuffers (const Standard_Integer theSizeX,
91c60b57 843 const Standard_Integer theSizeY,
844 const Handle(OpenGl_Context)& theGlContext);
845
846 //! Generates viewing rays for corners of screen quad.
847 void updateCamera (const OpenGl_Mat4& theOrientation,
848 const OpenGl_Mat4& theViewMapping,
849 OpenGl_Vec3* theOrigins,
850 OpenGl_Vec3* theDirects,
1d865689 851 OpenGl_Mat4& theView,
91c60b57 852 OpenGl_Mat4& theUnView);
853
854 //! Binds ray-trace textures to corresponding texture units.
855 void bindRaytraceTextures (const Handle(OpenGl_Context)& theGlContext);
856
857 //! Unbinds ray-trace textures from corresponding texture unit.
858 void unbindRaytraceTextures (const Handle(OpenGl_Context)& theGlContext);
859
860 //! Sets uniform state for the given ray-tracing shader program.
3a9b5dc8 861 Standard_Boolean setUniformState (const Standard_Integer theProgramId,
862 const Standard_Integer theSizeX,
863 const Standard_Integer theSizeY,
91c60b57 864 const Handle(OpenGl_Context)& theGlContext);
865
866 //! Runs ray-tracing shader programs.
c357e426 867 Standard_Boolean runRaytraceShaders (const Standard_Integer theSizeX,
91c60b57 868 const Standard_Integer theSizeY,
bf02aa7d 869 Graphic3d_Camera::Projection theProjection,
38a0206f 870 OpenGl_FrameBuffer* theReadDrawFbo,
91c60b57 871 const Handle(OpenGl_Context)& theGlContext);
872
3a9b5dc8 873 //! Runs classical (Whitted-style) ray-tracing kernel.
874 Standard_Boolean runRaytrace (const Standard_Integer theSizeX,
875 const Standard_Integer theSizeY,
876 Graphic3d_Camera::Projection theProjection,
877 OpenGl_FrameBuffer* theReadDrawFbo,
878 const Handle(OpenGl_Context)& theGlContext);
879
880 //! Runs path tracing (global illumination) kernel.
881 Standard_Boolean runPathtrace (const Graphic3d_Camera::Projection theProjection,
882 OpenGl_FrameBuffer* theReadDrawFbo,
883 const Handle(OpenGl_Context)& theGlContext);
884
885 //! Redraws the window using OpenGL/GLSL ray-tracing or path tracing.
c357e426 886 Standard_Boolean raytrace (const Standard_Integer theSizeX,
91c60b57 887 const Standard_Integer theSizeY,
bf02aa7d 888 Graphic3d_Camera::Projection theProjection,
38a0206f 889 OpenGl_FrameBuffer* theReadDrawFbo,
91c60b57 890 const Handle(OpenGl_Context)& theGlContext);
891
892protected: //! @name fields related to ray-tracing
893
3a9b5dc8 894 //! Result of RT/PT shaders initialization.
91c60b57 895 RaytraceInitStatus myRaytraceInitStatus;
896
3a9b5dc8 897 //! Is ray-tracing geometry data valid?
91c60b57 898 Standard_Boolean myIsRaytraceDataValid;
899
3a9b5dc8 900 //! True if warning about missing extension GL_ARB_bindless_texture has been displayed.
91c60b57 901 Standard_Boolean myIsRaytraceWarnTextures;
902
903 //! 3D scene geometry data for ray-tracing.
904 OpenGl_RaytraceGeometry myRaytraceGeometry;
905
906 //! Compile-time ray-tracing parameters.
907 RaytracingParams myRaytraceParameters;
908
909 //! Radius of bounding sphere of the scene.
910 Standard_ShortReal myRaytraceSceneRadius;
911 //! Scene epsilon to prevent self-intersections.
912 Standard_ShortReal myRaytraceSceneEpsilon;
913
914 //! OpenGL/GLSL source of ray-tracing fragment shader.
915 ShaderSource myRaytraceShaderSource;
916 //! OpenGL/GLSL source of adaptive-AA fragment shader.
917 ShaderSource myPostFSAAShaderSource;
3a9b5dc8 918 //! OpenGL/GLSL source of RT/PT display fragment shader.
919 ShaderSource myOutImageShaderSource;
91c60b57 920
921 //! OpenGL/GLSL ray-tracing fragment shader.
922 Handle(OpenGl_ShaderObject) myRaytraceShader;
923 //! OpenGL/GLSL adaptive-AA fragment shader.
924 Handle(OpenGl_ShaderObject) myPostFSAAShader;
3a9b5dc8 925 //! OpenGL/GLSL ray-tracing display fragment shader.
926 Handle(OpenGl_ShaderObject) myOutImageShader;
91c60b57 927
928 //! OpenGL/GLSL ray-tracing shader program.
929 Handle(OpenGl_ShaderProgram) myRaytraceProgram;
930 //! OpenGL/GLSL adaptive-AA shader program.
931 Handle(OpenGl_ShaderProgram) myPostFSAAProgram;
189f85a3 932 //! OpenGL/GLSL program for displaying texture.
933 Handle(OpenGl_ShaderProgram) myOutImageProgram;
91c60b57 934
935 //! Texture buffer of data records of bottom-level BVH nodes.
936 Handle(OpenGl_TextureBufferArb) mySceneNodeInfoTexture;
937 //! Texture buffer of minimum points of bottom-level BVH nodes.
938 Handle(OpenGl_TextureBufferArb) mySceneMinPointTexture;
939 //! Texture buffer of maximum points of bottom-level BVH nodes.
940 Handle(OpenGl_TextureBufferArb) mySceneMaxPointTexture;
941 //! Texture buffer of transformations of high-level BVH nodes.
942 Handle(OpenGl_TextureBufferArb) mySceneTransformTexture;
943
944 //! Texture buffer of vertex coords.
945 Handle(OpenGl_TextureBufferArb) myGeometryVertexTexture;
946 //! Texture buffer of vertex normals.
947 Handle(OpenGl_TextureBufferArb) myGeometryNormalTexture;
948 //! Texture buffer of vertex UV coords.
949 Handle(OpenGl_TextureBufferArb) myGeometryTexCrdTexture;
950 //! Texture buffer of triangle indices.
951 Handle(OpenGl_TextureBufferArb) myGeometryTriangTexture;
952
953 //! Texture buffer of material properties.
954 Handle(OpenGl_TextureBufferArb) myRaytraceMaterialTexture;
955 //! Texture buffer of light source properties.
956 Handle(OpenGl_TextureBufferArb) myRaytraceLightSrcTexture;
957
958 //! 1st framebuffer (FBO) to perform adaptive FSAA.
3a9b5dc8 959 //! Used in compatibility mode (no adaptive sampling).
bf02aa7d 960 Handle(OpenGl_FrameBuffer) myRaytraceFBO1[2];
91c60b57 961 //! 2nd framebuffer (FBO) to perform adaptive FSAA.
3a9b5dc8 962 //! Used in compatibility mode (no adaptive sampling).
bf02aa7d 963 Handle(OpenGl_FrameBuffer) myRaytraceFBO2[2];
3a9b5dc8 964
965 //! Output textures (2 textures are used in stereo mode).
966 //! Used if adaptive screen sampling is activated.
967 Handle(OpenGl_Texture) myRaytraceOutputTexture[2];
968
969 //! Texture containing per-tile visual error estimation.
970 //! Used if adaptive screen sampling is activated.
971 Handle(OpenGl_Texture) myRaytraceVisualErrorTexture;
972 //! Texture containing offsets of sampled screen tiles.
973 //! Used if adaptive screen sampling is activated.
974 Handle(OpenGl_Texture) myRaytraceTileOffsetsTexture;
91c60b57 975
976 //! Vertex buffer (VBO) for drawing dummy quad.
977 OpenGl_VertexBuffer myRaytraceScreenQuad;
978
979 //! Cached locations of frequently used uniform variables.
980 Standard_Integer myUniformLocations[2][OpenGl_RT_NbVariables];
981
982 //! State of OpenGL structures reflected to ray-tracing.
d4aaad5b 983 std::map<const OpenGl_Structure*, StructState> myStructureStates;
91c60b57 984
985 //! PrimitiveArray to TriangleSet map for scene partial update.
986 std::map<Standard_Size, OpenGl_TriangleSet*> myArrayToTrianglesMap;
987
189f85a3 988 //! Set of IDs of non-raytracable elements (to detect updates).
989 std::set<Standard_Integer> myNonRaytraceStructureIDs;
990
991 //! Render filter to filter out all raytracable structures.
91c60b57 992 Handle(OpenGl_RaytraceFilter) myRaytraceFilter;
993
994 //! Marks if environment map should be updated.
995 Standard_Boolean myToUpdateEnvironmentMap;
996
997 //! State of OpenGL layer list.
bd6a8454 998 Standard_Size myRaytraceLayerListState;
189f85a3 999
1000 //! Number of accumulated frames (for progressive rendering).
1001 Standard_Integer myAccumFrames;
1002
1003 //! Stored ray origins used for detection of camera movements.
1004 OpenGl_Vec3 myPreviousOrigins[3];
1005
1006 //! Bullard RNG to produce random sequence.
1007 math_BullardGenerator myRNG;
91c60b57 1008
3a9b5dc8 1009 //! Tool object for sampling screen tiles in PT mode.
1010 OpenGl_TileSampler myTileSampler;
1011
679ecdee 1012public:
1013
1c35b92f 1014 DEFINE_STANDARD_ALLOC
92efcf78 1015 DEFINE_STANDARD_RTTIEXT(OpenGl_View,Graphic3d_CView) // Type definition
679ecdee 1016
c357e426 1017 friend class OpenGl_GraphicDriver;
a89742cf 1018 friend class OpenGl_Workspace;
2166f0fa
SK
1019};
1020
679ecdee 1021#endif // _OpenGl_View_Header