0026911: Configuration, CMake - strips symbol information from the binary in release...
[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
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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>
29#include <Aspect_TypeOfTriedronPosition.hxx>
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30
31#include <InterfaceGraphic_Graphic3d.hxx>
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32
33#include <Graphic3d_CView.hxx>
a79f67f8 34#include <Graphic3d_GraduatedTrihedron.hxx>
51b10cd4 35#include <Graphic3d_SequenceOfHClipPlane.hxx>
c357e426 36#include <Graphic3d_TypeOfShadingModel.hxx>
37#include <Graphic3d_TypeOfSurfaceDetail.hxx>
825aa485 38#include <Graphic3d_WorldViewProjState.hxx>
c5751993 39#include <Graphic3d_ZLayerSettings.hxx>
2166f0fa 40
0b0320e7 41#include <OpenGl_AspectFace.hxx>
42#include <OpenGl_BackgroundArray.hxx>
b7cd4ba7 43#include <OpenGl_BVHTreeSelector.hxx>
c357e426 44#include <OpenGl_Context.hxx>
45#include <OpenGl_FrameBuffer.hxx>
46#include <OpenGl_GraduatedTrihedron.hxx>
59f45b7c 47#include <OpenGl_LayerList.hxx>
2166f0fa 48#include <OpenGl_Light.hxx>
73192b37 49#include <OpenGl_LineAttributes.hxx>
c357e426 50#include <OpenGl_SceneGeometry.hxx>
51#include <OpenGl_Structure.hxx>
536d98e2 52#include <OpenGl_Trihedron.hxx>
c357e426 53#include <OpenGl_Window.hxx>
54#include <OpenGl_Workspace.hxx>
2166f0fa 55
c357e426 56#include <map>
57#include <set>
2166f0fa 58
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59struct OPENGL_ZCLIP
60{
61 struct {
62 Standard_Boolean IsOn;
63 Standard_ShortReal Limit; /* in the range [0., 1.] */
64 } Back;
65 struct {
66 Standard_Boolean IsOn;
67 Standard_ShortReal Limit; /* in the range [0., 1.] */
68 } Front;
69};
70
71struct OPENGL_FOG
72{
73 Standard_Boolean IsOn;
74 Standard_ShortReal Front; /* in the range [0., 1.] */
75 Standard_ShortReal Back; /* in the range [0., 1.] */
76 TEL_COLOUR Color;
77};
78
b5ac8292 79struct OpenGl_Matrix;
2166f0fa 80
c357e426 81class Graphic3d_StructureManager;
82class OpenGl_GraphicDriver;
83class OpenGl_StateCounter;
84class OpenGl_RaytraceMaterial;
85class OpenGl_TriangleSet;
86class OpenGl_Workspace;
c04c30b3 87class OpenGl_View;
c357e426 88DEFINE_STANDARD_HANDLE(OpenGl_View,Graphic3d_CView)
c04c30b3 89
c357e426 90//! Implementation of OpenGl view.
91class OpenGl_View : public Graphic3d_CView
2166f0fa 92{
c357e426 93
94public:
95
96 //! Constructor.
97 Standard_EXPORT OpenGl_View (const Handle(Graphic3d_StructureManager)& theMgr,
98 const Handle(OpenGl_GraphicDriver)& theDriver,
99 const Handle(OpenGl_Caps)& theCaps,
100 Standard_Boolean& theDeviceLostFlag,
101 OpenGl_StateCounter* theCounter);
102
103 //! Default destructor.
104 Standard_EXPORT virtual ~OpenGl_View();
2166f0fa 105
62e1beed 106 Standard_EXPORT void ReleaseGlResources (const Handle(OpenGl_Context)& theCtx);
bf75be98 107
c357e426 108 //! Deletes and erases the view.
109 Standard_EXPORT virtual void Remove() Standard_OVERRIDE;
110
111 //! @param theDrawToFrontBuffer Advanced option to modify rendering mode:
112 //! 1. TRUE. Drawing immediate mode structures directly to the front buffer over the scene image.
113 //! Fast, so preferred for interactive work (used by default).
114 //! However these extra drawings will be missed in image dump since it is performed from back buffer.
115 //! Notice that since no pre-buffering used the V-Sync will be ignored and rendering could be seen
116 //! in run-time (in case of slow hardware) and/or tearing may appear.
117 //! So this is strongly recommended to draw only simple (fast) structures.
118 //! 2. FALSE. Drawing immediate mode structures to the back buffer.
119 //! The complete scene is redrawn first, so this mode is slower if scene contains complex data and/or V-Sync
120 //! is turned on. But it works in any case and is especially useful for view dump because the dump image is read
121 //! from the back buffer.
122 //! @return previous mode.
123 Standard_EXPORT Standard_Boolean SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer) Standard_OVERRIDE;
124
125 //! Creates and maps rendering window to the view.
c357e426 126 //! @param theWindow [in] the window.
127 //! @param theContext [in] the rendering context. If NULL the context will be created internally.
a521d90d 128 Standard_EXPORT virtual void SetWindow (const Handle(Aspect_Window)& theWindow,
129 const Aspect_RenderingContext theContext) Standard_OVERRIDE;
c357e426 130
131 //! Returns window associated with the view.
132 virtual Handle(Aspect_Window) Window() const Standard_OVERRIDE { return myWindow->PlatformWindow(); }
133
134 //! Returns True if the window associated to the view is defined.
135 virtual Standard_Boolean IsDefined() const { return !myWindow.IsNull(); }
136
137 //! Handle changing size of the rendering window.
138 Standard_EXPORT virtual void Resized() Standard_OVERRIDE;
139
140 //! Redraw content of the view.
141 Standard_EXPORT virtual void Redraw() Standard_OVERRIDE;
142
143 //! Redraw immediate content of the view.
144 Standard_EXPORT virtual void RedrawImmediate() Standard_OVERRIDE;
145
146 //! Marks BVH tree for given priority list as dirty and marks primitive set for rebuild.
147 Standard_EXPORT virtual void Invalidate() Standard_OVERRIDE;
148
149 //! Return true if view content cache has been invalidated.
d2eddacc 150 virtual Standard_Boolean IsInvalidated() Standard_OVERRIDE { return !myBackBufferRestored; }
c357e426 151
152 //! Displays z-buffer trihedron.
153 Standard_EXPORT virtual void TriedronDisplay (const Aspect_TypeOfTriedronPosition thePosition = Aspect_TOTP_CENTER,
154 const Quantity_NameOfColor theColor = Quantity_NOC_WHITE,
155 const Standard_Real theScale = 0.02,
156 const Standard_Boolean theAsWireframe = Standard_True) Standard_OVERRIDE;
157
158 //! Erases z-buffer trihedron.
159 Standard_EXPORT virtual void TriedronErase() Standard_OVERRIDE;
160
161 //! Setup parameters of z-buffer trihedron.
162 Standard_EXPORT virtual void ZBufferTriedronSetup (const Quantity_NameOfColor theXColor = Quantity_NOC_RED,
163 const Quantity_NameOfColor theYColor = Quantity_NOC_GREEN,
164 const Quantity_NameOfColor theZColor = Quantity_NOC_BLUE1,
165 const Standard_Real theSizeRatio = 0.8,
166 const Standard_Real theAxisDiametr = 0.05,
167 const Standard_Integer theNbFacettes = 12) Standard_OVERRIDE;
168
169 //! Displays trihedron echo.
170 Standard_EXPORT virtual void TriedronEcho (const Aspect_TypeOfTriedronEcho theType = Aspect_TOTE_NONE) Standard_OVERRIDE;
171
172 //! Returns data of a graduated trihedron
173 const Graphic3d_GraduatedTrihedron& GetGraduatedTrihedron() { return myGTrihedronData; }
174
175 //! Displays Graduated Trihedron.
176 Standard_EXPORT virtual void GraduatedTrihedronDisplay (const Graphic3d_GraduatedTrihedron& theTrihedronData) Standard_OVERRIDE;
177
178 //! Erases Graduated Trihedron.
179 Standard_EXPORT virtual void GraduatedTrihedronErase() Standard_OVERRIDE;
180
181 //! Sets minimum and maximum points of scene bounding box for Graduated Trihedron stored in graphic view object.
182 //! @param theMin [in] the minimum point of scene.
183 //! @param theMax [in] the maximum point of scene.
184 Standard_EXPORT virtual void GraduatedTrihedronMinMaxValues (const Graphic3d_Vec3 theMin, const Graphic3d_Vec3 theMax) Standard_OVERRIDE;
185
c357e426 186 //! Dump active rendering buffer into specified memory buffer.
187 Standard_EXPORT virtual Standard_Boolean BufferDump (Image_PixMap& theImage,
188 const Graphic3d_BufferType& theBufferType) Standard_OVERRIDE;
189
190 //! Print the contents of the view to the printer.
191 //! @param thePrinterDC pass the PrinterDeviceContext (HDC)
192 //! @param theToShowBackground when set to FALSE then print the view without background
193 //! color (background is white) else set to TRUE for printing
194 //! with current background color
195 //! @param theFileName if != NULL, then the view will be printed to a file
196 //! @param thePrintAlgorithm select print algorithm: stretch, tile
197 //! @param theScaleFactor scaling coefficient, used internally to scale the printings
198 //! accordingly to the scale factor selected in the printer properties dialog
199 //! @return Standard_True if the data is passed to the printer, otherwise Standard_False if
200 //! the print operation failed due to the printer errors, or lack of system memory. This might be related
201 //! to insufficient memory or some internal errors.
202 //! All this errors are indicated by the message boxes (on level of OpenGl_GraphicDriver).
203 //! Warning: This function can reuse FBO assigned to the view, please take it into account
204 //! if you use it for your purposes.
205 Standard_EXPORT virtual Standard_Boolean Print (const Aspect_Handle thePrinterDC,
206 const Standard_Boolean theToShowBackground,
207 const Standard_CString theFileName,
208 const Aspect_PrintAlgo thePrintAlgorithm = Aspect_PA_STRETCH,
209 const Standard_Real theScaleFactor = 1.0) Standard_OVERRIDE;
210
211 //! Export scene into the one of the Vector graphics formats (SVG, PS, PDF...).
212 //! In contrast to Bitmaps, Vector graphics is scalable (so you may got quality benefits
213 //! on printing to laser printer). Notice however that results may differ a lot and
214 //! do not contain some elements.
215 Standard_EXPORT virtual Standard_Boolean Export (const Standard_CString theFileName,
216 const Graphic3d_ExportFormat theFormat,
217 const Graphic3d_SortType theSortType = Graphic3d_ST_BSP_Tree) Standard_OVERRIDE;
218
219 //! Marks BVH tree and the set of BVH primitives of correspondent priority list with id theLayerId as outdated.
220 Standard_EXPORT virtual void InvalidateBVHData (const Standard_Integer theLayerId) Standard_OVERRIDE;
221
222 //! Insert a new top-level z layer with the given ID.
223 Standard_EXPORT virtual void AddZLayer (const Graphic3d_ZLayerId theLayerId) Standard_OVERRIDE;
224
225 //! Remove a z layer with the given ID.
226 Standard_EXPORT virtual void RemoveZLayer (const Graphic3d_ZLayerId theLayerId) Standard_OVERRIDE;
2166f0fa 227
c357e426 228 //! Sets the settings for a single Z layer of specified view.
229 Standard_EXPORT virtual void SetZLayerSettings (const Graphic3d_ZLayerId theLayerId,
230 const Graphic3d_ZLayerSettings& theSettings) Standard_OVERRIDE;
b5ac8292 231
c357e426 232 //! Returns pointer to an assigned framebuffer object.
233 Standard_EXPORT virtual Graphic3d_PtrFrameBuffer FBO() const Standard_OVERRIDE;
2166f0fa 234
c357e426 235 //! Sets framebuffer object for offscreen rendering.
236 Standard_EXPORT virtual void SetFBO (const Graphic3d_PtrFrameBuffer theFBO) Standard_OVERRIDE;
2166f0fa 237
c357e426 238 //! Generate offscreen FBO in the graphic library.
239 //! If not supported on hardware returns NULL.
240 Standard_EXPORT virtual Graphic3d_PtrFrameBuffer FBOCreate (const Standard_Integer theWidth,
241 const Standard_Integer theHeight) Standard_OVERRIDE;
2166f0fa 242
c357e426 243 //! Remove offscreen FBO from the graphic library
244 Standard_EXPORT virtual void FBORelease (Graphic3d_PtrFrameBuffer& theFBOPtr) Standard_OVERRIDE;
2166f0fa 245
c357e426 246 //! Read offscreen FBO configuration.
247 Standard_EXPORT virtual void FBOGetDimensions (const Graphic3d_PtrFrameBuffer theFBOPtr,
248 Standard_Integer& theWidth,
249 Standard_Integer& theHeight,
250 Standard_Integer& theWidthMax,
251 Standard_Integer& theHeightMax) Standard_OVERRIDE;
252
253 //! Change offscreen FBO viewport.
254 Standard_EXPORT virtual void FBOChangeViewport (Graphic3d_PtrFrameBuffer& theFBOPtr,
255 const Standard_Integer theWidth,
256 const Standard_Integer theHeight) Standard_OVERRIDE;
2166f0fa 257
c357e426 258public:
2166f0fa 259
c357e426 260 //! Returns true if anti-aliasing is enabled for the view.
261 Standard_Boolean virtual IsAntialiasingEnabled() const Standard_OVERRIDE { return myAntiAliasing; }
59f45b7c 262
c357e426 263 //! Enable or disable anti-aliasing in the view.
264 virtual void SetAntialiasingEnabled (const Standard_Boolean theIsEnabled) Standard_OVERRIDE { myAntiAliasing = theIsEnabled; }
679ecdee 265
c357e426 266 //! Returns background fill color.
267 Standard_EXPORT virtual Aspect_Background Background() const Standard_OVERRIDE;
59f45b7c 268
c357e426 269 //! Sets background fill color.
270 Standard_EXPORT virtual void SetBackground (const Aspect_Background& theBackground) Standard_OVERRIDE;
59f45b7c 271
c357e426 272 //! Returns gradient background fill colors.
273 Standard_EXPORT virtual Aspect_GradientBackground GradientBackground() const Standard_OVERRIDE;
2166f0fa 274
c357e426 275 //! Sets gradient background fill colors.
276 Standard_EXPORT virtual void SetGradientBackground (const Aspect_GradientBackground& theBackground) Standard_OVERRIDE;
277
278 //! Returns background image texture file path.
279 Standard_EXPORT virtual TCollection_AsciiString BackgroundImage() Standard_OVERRIDE { return myBackgroundImagePath; }
280
281 //! Sets background image texture file path.
282 Standard_EXPORT virtual void SetBackgroundImage (const TCollection_AsciiString& theFilePath) Standard_OVERRIDE;
283
284 //! Returns background image fill style.
285 Standard_EXPORT virtual Aspect_FillMethod BackgroundImageStyle() const Standard_OVERRIDE;
286
287 //! Sets background image fill style.
288 Standard_EXPORT virtual void SetBackgroundImageStyle (const Aspect_FillMethod theFillStyle) Standard_OVERRIDE;
289
290 //! Returns environment texture set for the view.
291 Standard_EXPORT virtual Handle(Graphic3d_TextureEnv) TextureEnv() const Standard_OVERRIDE { return myTextureEnvData; }
292
293 //! Sets environment texture for the view.
294 Standard_EXPORT virtual void SetTextureEnv (const Handle(Graphic3d_TextureEnv)& theTextureEnv) Standard_OVERRIDE;
295
296 //! Returns the state of frustum culling optimization.
297 virtual Standard_Boolean IsCullingEnabled() const Standard_OVERRIDE { return myCulling; }
298
299 //! Enables or disables frustum culling optimization.
300 virtual void SetCullingEnabled (const Standard_Boolean theIsEnabled) Standard_OVERRIDE { myCulling = theIsEnabled; }
301
302 //! Returns shading model of the view.
303 virtual Graphic3d_TypeOfShadingModel ShadingModel() const Standard_OVERRIDE { return myShadingModel; }
304
305 //! Sets shading model of the view.
306 virtual void SetShadingModel (const Graphic3d_TypeOfShadingModel theModel) Standard_OVERRIDE { myShadingModel = theModel; }
307
308 //! Returns surface detail type of the view.
309 virtual Graphic3d_TypeOfSurfaceDetail SurfaceDetailType() const Standard_OVERRIDE { return mySurfaceDetail; }
310
311 //! Sets surface detail type of the view.
312 virtual void SetSurfaceDetailType (const Graphic3d_TypeOfSurfaceDetail theType) Standard_OVERRIDE
313 {
314 mySurfaceDetail = theType;
315 myToUpdateEnvironmentMap = Standard_True;
316 }
317
318 //! Return backfacing model used for the view.
319 virtual Graphic3d_TypeOfBackfacingModel BackfacingModel() const Standard_OVERRIDE { return myBackfacing; }
320
321 //! Sets backfacing model for the view.
322 virtual void SetBackfacingModel (const Graphic3d_TypeOfBackfacingModel theModel) Standard_OVERRIDE { myBackfacing = theModel; }
323
324 //! Returns camera object of the view.
325 virtual const Handle(Graphic3d_Camera)& Camera() const Standard_OVERRIDE { return myCamera; }
326
327 //! Sets camera used by the view.
328 virtual void SetCamera (const Handle(Graphic3d_Camera)& theCamera) Standard_OVERRIDE { myCamera = theCamera; }
329
330 //! Returns the activity of back z-clipping plane.
331 virtual Standard_Boolean BackZClippingIsOn() const Standard_OVERRIDE { return myZClip.Back.IsOn; }
332
333 //! Activates the back Z-clipping plane.
334 virtual void SetBackZClippingOn (const Standard_Boolean theIsOn) Standard_OVERRIDE { myZClip.Back.IsOn = theIsOn; }
335
336 //! Returns the definition of the back Z-clipping plane.
337 virtual Standard_Real ZClippingBackPlane() const Standard_OVERRIDE { return myZClip.Back.Limit; }
338
339 //! Sets the definition of the back Z-clipping plane.
340 virtual void SetZClippingBackPlane (const Standard_Real theValue) Standard_OVERRIDE
341 {
342 myZClip.Back.Limit = static_cast<Standard_ShortReal> (theValue);
343 }
344
345 //! Returns the activity of front z-clipping plane.
346 virtual Standard_Boolean FrontZClippingIsOn() const Standard_OVERRIDE { return myZClip.Front.IsOn; }
347
348 //! Activates the front Z-clipping plane.
349 virtual void SetFrontZClippingOn (const Standard_Boolean theIsOn) Standard_OVERRIDE{ myZClip.Front.IsOn = theIsOn; }
350
351 //! Returns the definition of the front Z-clipping plane.
352 virtual Standard_Real ZClippingFrontPlane() const Standard_OVERRIDE { return myZClip.Front.Limit; }
353
354 //! Sets the definition of the front Z-clipping plane.
355 virtual void SetZClippingFrontPlane (const Standard_Real theValue) Standard_OVERRIDE
356 {
357 myZClip.Front.Limit = static_cast<Standard_ShortReal> (theValue);
358 }
359
360 //! Returns the activity of depth cueing.
361 virtual Standard_Boolean DepthCueingIsOn() const Standard_OVERRIDE { return myFog.IsOn; }
362
363 //! Sets the activity of depth cueing.
364 virtual void SetDepthCueingOn (const Standard_Boolean theIsOn) Standard_OVERRIDE { myFog.IsOn = theIsOn; }
c5751993 365
c357e426 366 //! Returns the back depth cueing plane.
367 virtual Standard_Real DepthCueingBackPlane() const Standard_OVERRIDE { return myFog.Back; }
b7cd4ba7 368
c357e426 369 //! Set the back depth cueing plane.
370 virtual void SetDepthCueingBackPlane (const Standard_Real theValue) Standard_OVERRIDE
371 {
372 myFog.Back = static_cast<Standard_ShortReal> (theValue);
373 }
374
375 //! Returns the front depth cueing plane.
376 virtual Standard_Real DepthCueingFrontPlane() const Standard_OVERRIDE { return myFog.Front; }
377
378 //! Set the front depth cueing plane.
379 virtual void SetDepthCueingFrontPlane (const Standard_Real theValue) Standard_OVERRIDE
380 {
381 myFog.Front = static_cast<Standard_ShortReal> (theValue);
382 }
383
384 //! Returns true if GL lighting is enabled.
385 virtual Standard_Boolean IsGLLightEnabled() const Standard_OVERRIDE { return myUseGLLight; }
386
387 //! Sets GL lighting enabled or disable state.
388 virtual void SetGLLightEnabled (const Standard_Boolean theIsEnabled) Standard_OVERRIDE { myUseGLLight = theIsEnabled; }
389
390 //! Returns list of lights of the view.
391 virtual const Graphic3d_ListOfCLight& Lights() const Standard_OVERRIDE { return myLights; }
392
393 //! Sets list of lights for the view.
394 virtual void SetLights (const Graphic3d_ListOfCLight& theLights) Standard_OVERRIDE
395 {
396 myLights = theLights;
397 myCurrLightSourceState = myStateCounter->Increment();
398 }
399
400 //! Returns list of clip planes set for the view.
401 virtual const Graphic3d_SequenceOfHClipPlane& ClipPlanes() const Standard_OVERRIDE { return myClipPlanes; }
402
403 //! Sets list of clip planes for the view.
404 virtual void SetClipPlanes (const Graphic3d_SequenceOfHClipPlane& thePlanes) Standard_OVERRIDE { myClipPlanes = thePlanes; }
405
406public:
407
408 //! Returns background color.
409 const TEL_COLOUR& BackgroundColor() const { return myBgColor; }
410
411 //! Change trihedron.
412 OpenGl_Trihedron& ChangeTrihedron() { return myTrihedron; }
413
414 //! Change graduated trihedron.
415 OpenGl_GraduatedTrihedron& ChangeGraduatedTrihedron() { return myGraduatedTrihedron; }
416
417 void SetTextureEnv (const Handle(OpenGl_Context)& theCtx,
418 const Handle(Graphic3d_TextureEnv)& theTexture);
419
420 //! Returns height of view volume.
421 Standard_Real Height () const { return myCamera->ViewDimensions().X(); }
422
423 //! Returns width of view volume.
424 Standard_Real Width () const { return myCamera->ViewDimensions().Y(); }
0b0320e7 425
2166f0fa 426 void SetBackgroundTextureStyle (const Aspect_FillMethod FillStyle);
c357e426 427
2166f0fa 428 void SetBackgroundGradient (const Quantity_Color& AColor1, const Quantity_Color& AColor2, const Aspect_GradientFillMethod AType);
2166f0fa 429
c357e426 430 void SetBackgroundGradientType (const Aspect_GradientFillMethod AType);
2166f0fa 431
e276548b 432 //! Returns list of OpenGL Z-layers.
433 const OpenGl_LayerList& LayerList() const { return myZLayers; }
434
435 //! Returns list of openGL light sources.
436 const OpenGl_ListOfLight& LightList() const { return myLights; }
437
c357e426 438 //! Returns OpenGL window implementation.
439 const Handle(OpenGl_Window) GlWindow() const { return myWindow; }
e276548b 440
c357e426 441 //! Returns OpenGL environment map.
442 const Handle(OpenGl_Texture)& GlTextureEnv() const { return myTextureEnv; }
e276548b 443
b7cd4ba7 444 //! Returns selector for BVH tree, providing a possibility to store information
445 //! about current view volume and to detect which objects are overlapping it.
446 OpenGl_BVHTreeSelector& BVHTreeSelector() { return myBVHSelector; }
447
a1954302 448 //! Returns true if there are immediate structures to display
449 bool HasImmediateStructures() const
450 {
c3282ec1 451 return myZLayers.NbImmediateStructures() != 0;
a1954302 452 }
453
c357e426 454protected: //! @name Internal methods for managing GL resources
455
456 //! Initializes OpenGl resource for environment texture.
457 void initTextureEnv (const Handle(OpenGl_Context)& theContext);
458
a521d90d 459protected: //! @name low-level redrawing sub-routines
c357e426 460
461 //! Redraws view for the given monographic camera projection, or left/right eye.
a521d90d 462 Standard_EXPORT virtual void redraw (const Graphic3d_Camera::Projection theProjection,
463 OpenGl_FrameBuffer* theReadDrawFbo);
2166f0fa 464
c357e426 465 //! Redraws view for the given monographic camera projection, or left/right eye.
466 //!
467 //! Method will blit snapshot containing main scene (myMainSceneFbos or BackBuffer)
468 //! into presentation buffer (myMainSceneFbos -> offscreen FBO or
469 //! myMainSceneFbos -> BackBuffer or BackBuffer -> FrontBuffer),
470 //! and redraw immediate structures on top.
471 //!
472 //! When scene caching is disabled (myTransientDrawToFront, no double buffer in window, etc.),
473 //! the first step (blitting) will be skipped.
474 //!
475 //! @return false if immediate structures has been rendered directly into FrontBuffer
476 //! and Buffer Swap should not be called.
a521d90d 477 Standard_EXPORT virtual bool redrawImmediate (const Graphic3d_Camera::Projection theProjection,
478 OpenGl_FrameBuffer* theReadFbo,
479 OpenGl_FrameBuffer* theDrawFbo,
480 const Standard_Boolean theIsPartialUpdate = Standard_False);
b5ac8292 481
c357e426 482 //! Blit image from/to specified buffers.
a521d90d 483 Standard_EXPORT bool blitBuffers (OpenGl_FrameBuffer* theReadFbo,
484 OpenGl_FrameBuffer* theDrawFbo,
485 const Standard_Boolean theToFlip = Standard_False);
2166f0fa 486
c357e426 487 //! Setup default FBO.
a521d90d 488 Standard_EXPORT void bindDefaultFbo (OpenGl_FrameBuffer* theCustomFbo = NULL);
2166f0fa 489
c357e426 490protected: //! @name Rendering of GL graphics (with prepared drawing buffer).
2166f0fa 491
c357e426 492 //! Renders the graphical contents of the view into the preprepared window or framebuffer.
493 //! @param theProjection [in] the projection that should be used for rendering.
494 //! @param theReadDrawFbo [in] the framebuffer for rendering graphics.
495 //! @param theToDrawImmediate [in] the flag indicates whether the rendering performs in immediate mode.
a521d90d 496 Standard_EXPORT virtual void render (Graphic3d_Camera::Projection theProjection,
497 OpenGl_FrameBuffer* theReadDrawFbo,
498 const Standard_Boolean theToDrawImmediate);
2166f0fa 499
c357e426 500 //! Renders the graphical scene.
bf02aa7d 501 //! @param theProjection [in] the projection that is used for rendering.
c357e426 502 //! @param theReadDrawFbo [in] the framebuffer for rendering graphics.
503 //! @param theToDrawImmediate [in] the flag indicates whether the rendering performs in immediate mode.
bf02aa7d 504 Standard_EXPORT virtual void renderScene (Graphic3d_Camera::Projection theProjection,
505 OpenGl_FrameBuffer* theReadDrawFbo,
a521d90d 506 const Standard_Boolean theToDrawImmediate);
507
508 //! Draw background (gradient / image)
509 Standard_EXPORT virtual void drawBackground (const Handle(OpenGl_Workspace)& theWorkspace);
2166f0fa 510
c357e426 511 //! Render set of structures presented in the view.
bf02aa7d 512 //! @param theProjection [in] the projection that is used for rendering.
c357e426 513 //! @param theReadDrawFbo [in] the framebuffer for rendering graphics.
514 //! @param theToDrawImmediate [in] the flag indicates whether the rendering performs in immediate mode.
bf02aa7d 515 Standard_EXPORT virtual void renderStructs (Graphic3d_Camera::Projection theProjection,
516 OpenGl_FrameBuffer* theReadDrawFbo,
a521d90d 517 const Standard_Boolean theToDrawImmediate);
2166f0fa 518
c357e426 519 //! Renders trihedron.
520 void renderTrihedron (const Handle(OpenGl_Workspace) &theWorkspace);
2166f0fa 521
c357e426 522private:
392ac980 523
c357e426 524 //! Adds the structure to display lists of the view.
525 Standard_EXPORT virtual void displayStructure (const Handle(Graphic3d_CStructure)& theStructure,
526 const Standard_Integer thePriority) Standard_OVERRIDE;
527
528 //! Erases the structure from display lists of the view.
529 Standard_EXPORT virtual void eraseStructure (const Handle(Graphic3d_CStructure)& theStructure) Standard_OVERRIDE;
530
531 //! Change Z layer of a structure already presented in view.
532 Standard_EXPORT virtual void changeZLayer (const Handle(Graphic3d_CStructure)& theCStructure,
533 const Graphic3d_ZLayerId theNewLayerId) Standard_OVERRIDE;
534
535 //! Changes the priority of a structure within its Z layer in the specified view.
536 Standard_EXPORT virtual void changePriority (const Handle(Graphic3d_CStructure)& theCStructure,
537 const Standard_Integer theNewPriority) Standard_OVERRIDE;
538
a521d90d 539private:
540
541 //! Copy content of Back buffer to the Front buffer.
542 void copyBackToFront();
543
544 //! Initialize blit quad.
545 OpenGl_VertexBuffer* initBlitQuad (const Standard_Boolean theToFlip);
546
547 //! Blend together views pair into stereo image.
3c4b62a4 548 void drawStereoPair (OpenGl_FrameBuffer* theDrawFbo);
a521d90d 549
c357e426 550protected:
551
552 OpenGl_GraphicDriver* myDriver;
553 Handle(OpenGl_Window) myWindow;
554 Handle(OpenGl_Workspace) myWorkspace;
555 Handle(OpenGl_Caps) myCaps;
556 Standard_Boolean& myDeviceLostFlag;
557 Standard_Boolean myWasRedrawnGL;
558
559 Standard_Boolean myAntiAliasing;
560 Standard_Boolean myCulling;
561 Graphic3d_TypeOfShadingModel myShadingModel;
562 Graphic3d_TypeOfSurfaceDetail mySurfaceDetail;
563 Graphic3d_TypeOfBackfacingModel myBackfacing;
564 TEL_COLOUR myBgColor;
565 OPENGL_FOG myFog;
566 OPENGL_ZCLIP myZClip;
567 Graphic3d_SequenceOfHClipPlane myClipPlanes;
568 Handle(Graphic3d_Camera) myCamera;
569 OpenGl_FrameBuffer* myFBO;
570 Standard_Boolean myUseGLLight;
571 Standard_Boolean myToShowTrihedron;
572 Standard_Boolean myToShowGradTrihedron;
573 TCollection_AsciiString myBackgroundImagePath;
574 Handle(Graphic3d_TextureEnv) myTextureEnvData;
575 Graphic3d_GraduatedTrihedron myGTrihedronData;
576
577 OpenGl_ListOfLight myLights;
578 OpenGl_LayerList myZLayers; //!< main list of displayed structure, sorted by layers
579
580 Graphic3d_WorldViewProjState myWorldViewProjState; //!< camera modification state
581 OpenGl_StateCounter* myStateCounter;
582 Standard_Size myCurrLightSourceState;
392ac980 583
584 typedef std::pair<Standard_Size, Standard_Size> StateInfo;
585
586 StateInfo myLastOrientationState;
587 StateInfo myLastViewMappingState;
588 StateInfo myLastLightSourceState;
30f0ad28 589
b7cd4ba7 590 //! Is needed for selection of overlapping objects and storage of the current view volume
591 OpenGl_BVHTreeSelector myBVHSelector;
592
c357e426 593 OpenGl_Trihedron myTrihedron;
594 OpenGl_GraduatedTrihedron myGraduatedTrihedron;
595
596 Handle(OpenGl_Texture) myTextureEnv;
597
c357e426 598protected: //! @name Rendering properties
599
600 //! Two framebuffers (left and right views) store cached main presentation
601 //! of the view (without presentation of immediate layers).
3c4b62a4 602 GLint myFboColorFormat; //!< sized format for color attachments
603 GLint myFboDepthFormat; //!< sized format for depth-stencil attachments
c357e426 604 Handle(OpenGl_FrameBuffer) myMainSceneFbos[2];
605 Handle(OpenGl_FrameBuffer) myImmediateSceneFbos[2]; //!< Additional buffers for immediate layer in stereo mode.
606 OpenGl_VertexBuffer myFullScreenQuad; //!< Vertices for full-screen quad rendering.
607 OpenGl_VertexBuffer myFullScreenQuadFlip;
608 Standard_Boolean myToFlipOutput; //!< Flag to draw result image upside-down
609 unsigned int myFrameCounter; //!< redraw counter, for debugging
610 Standard_Boolean myHasFboBlit;
611 Standard_Boolean myTransientDrawToFront; //!< optimization flag for immediate mode (to render directly to the front buffer)
612 Standard_Boolean myBackBufferRestored;
613 Standard_Boolean myIsImmediateDrawn; //!< flag indicates that immediate mode buffer contains some data
614
0b0320e7 615protected: //! @name Background parameters
616
617 OpenGl_AspectFace* myTextureParams; //!< Stores texture and its parameters for textured background
618 OpenGl_BackgroundArray* myBgGradientArray; //!< Primitive array for gradient background
619 OpenGl_BackgroundArray* myBgTextureArray; //!< Primitive array for texture background
620
91c60b57 621protected: //! @name data types related to ray-tracing
622
623 //! Result of OpenGL shaders initialization.
624 enum RaytraceInitStatus
625 {
626 OpenGl_RT_NONE,
627 OpenGl_RT_INIT,
628 OpenGl_RT_FAIL
629 };
630
631 //! Describes update mode (state).
632 enum RaytraceUpdateMode
633 {
634 OpenGl_GUM_CHECK, //!< check geometry state
635 OpenGl_GUM_PREPARE, //!< collect unchanged objects
636 OpenGl_GUM_REBUILD //!< rebuild changed and new objects
637 };
638
639 //! Defines frequently used shader variables.
640 enum ShaderVariableIndex
641 {
642 OpenGl_RT_aPosition,
643
189f85a3 644 // camera position
91c60b57 645 OpenGl_RT_uOriginLT,
646 OpenGl_RT_uOriginLB,
647 OpenGl_RT_uOriginRT,
648 OpenGl_RT_uOriginRB,
649 OpenGl_RT_uDirectLT,
650 OpenGl_RT_uDirectLB,
651 OpenGl_RT_uDirectRT,
652 OpenGl_RT_uDirectRB,
653 OpenGl_RT_uUnviewMat,
654
189f85a3 655 // 3D scene params
91c60b57 656 OpenGl_RT_uSceneRad,
657 OpenGl_RT_uSceneEps,
658 OpenGl_RT_uLightAmbnt,
659 OpenGl_RT_uLightCount,
660
189f85a3 661 // background params
662 OpenGl_RT_uBackColorTop,
663 OpenGl_RT_uBackColorBot,
91c60b57 664
189f85a3 665 // ray-tracing params
666 OpenGl_RT_uShadowsEnabled,
667 OpenGl_RT_uReflectEnabled,
668 OpenGl_RT_uSphereMapEnabled,
669 OpenGl_RT_uSphereMapForBack,
670 OpenGl_RT_uTexSamplersArray,
8c820969 671 OpenGl_RT_uBlockedRngEnabled,
189f85a3 672
673 // sampled frame params
674 OpenGl_RT_uSampleWeight,
675 OpenGl_RT_uFrameRndSeed,
676
677 // adaptive FSAA params
91c60b57 678 OpenGl_RT_uOffsetX,
679 OpenGl_RT_uOffsetY,
680 OpenGl_RT_uSamples,
91c60b57 681
682 OpenGl_RT_NbVariables // special field
683 };
684
685 //! Defines texture samplers.
686 enum ShaderSamplerNames
687 {
688 OpenGl_RT_SceneNodeInfoTexture = 0,
689 OpenGl_RT_SceneMinPointTexture = 1,
690 OpenGl_RT_SceneMaxPointTexture = 2,
691 OpenGl_RT_SceneTransformTexture = 3,
692
693 OpenGl_RT_GeometryVertexTexture = 4,
694 OpenGl_RT_GeometryNormalTexture = 5,
695 OpenGl_RT_GeometryTexCrdTexture = 6,
696 OpenGl_RT_GeometryTriangTexture = 7,
697
698 OpenGl_RT_EnvironmentMapTexture = 8,
699
700 OpenGl_RT_RaytraceMaterialTexture = 9,
701 OpenGl_RT_RaytraceLightSrcTexture = 10,
702
189f85a3 703 OpenGl_RT_FsaaInputTexture = 11,
704 OpenGl_RT_PrevAccumTexture = 12,
91c60b57 705
189f85a3 706 OpenGl_RT_OpenGlColorTexture = 13,
707 OpenGl_RT_OpenGlDepthTexture = 14
91c60b57 708 };
709
710 //! Tool class for management of shader sources.
711 class ShaderSource
712 {
713 public:
714
189f85a3 715 //! Default shader prefix - empty string.
716 static const TCollection_AsciiString EMPTY_PREFIX;
717
91c60b57 718 //! Creates new uninitialized shader source.
719 ShaderSource()
720 {
721 //
722 }
723
73722cc9 724 public:
189f85a3 725
73722cc9 726 //! Returns error description in case of load fail.
727 const TCollection_AsciiString& ErrorDescription() const
728 {
729 return myError;
91c60b57 730 }
731
91c60b57 732 //! Returns prefix to insert before the source.
733 const TCollection_AsciiString& Prefix() const
734 {
735 return myPrefix;
736 }
737
738 //! Sets prefix to insert before the source.
739 void SetPrefix (const TCollection_AsciiString& thePrefix)
740 {
741 myPrefix = thePrefix;
742 }
743
744 //! Returns shader source combined with prefix.
745 TCollection_AsciiString Source() const;
746
747 //! Loads shader source from specified files.
73722cc9 748 Standard_Boolean Load (const TCollection_AsciiString* theFileNames, const TCollection_AsciiString& thePrefix = EMPTY_PREFIX);
91c60b57 749
750 private:
751
752 TCollection_AsciiString mySource; //!< Source string of the shader object
753 TCollection_AsciiString myPrefix; //!< Prefix to insert before the source
73722cc9 754 TCollection_AsciiString myError; //!< error state
91c60b57 755
756 };
757
758 //! Default ray-tracing depth.
759 static const Standard_Integer THE_DEFAULT_NB_BOUNCES = 3;
760
761 //! Default size of traversal stack.
762 static const Standard_Integer THE_DEFAULT_STACK_SIZE = 24;
763
764 //! Compile-time ray-tracing parameters.
765 struct RaytracingParams
766 {
767 //! Actual size of traversal stack in shader program.
768 Standard_Integer StackSize;
769
770 //! Actual ray-tracing depth (number of ray bounces).
771 Standard_Integer NbBounces;
772
f483f2ed 773 //! Enables/disables light propagation through transparent media.
91c60b57 774 Standard_Boolean TransparentShadows;
775
189f85a3 776 //! Enables/disables global illumination (GI) effects.
777 Standard_Boolean GlobalIllumination;
778
f483f2ed 779 //! Enables/disables the use of OpenGL bindless textures.
780 Standard_Boolean UseBindlessTextures;
781
91c60b57 782 //! Creates default compile-time ray-tracing parameters.
783 RaytracingParams()
784 : StackSize (THE_DEFAULT_STACK_SIZE),
785 NbBounces (THE_DEFAULT_NB_BOUNCES),
f483f2ed 786 TransparentShadows (Standard_False),
189f85a3 787 GlobalIllumination (Standard_False),
f483f2ed 788 UseBindlessTextures (Standard_False)
91c60b57 789 {
790 //
791 }
792 };
793
d4aaad5b 794 //! Describes state of OpenGL structure.
795 struct StructState
796 {
797 Standard_Size StructureState;
798 Standard_Size InstancedState;
799
800 //! Creates new structure state.
801 StructState (const Standard_Size theStructureState = 0,
802 const Standard_Size theInstancedState = 0)
803 : StructureState (theStructureState),
804 InstancedState (theInstancedState)
805 {
806 //
807 }
808
809 //! Creates new structure state.
810 StructState (const OpenGl_Structure* theStructure)
811 {
812 StructureState = theStructure->ModificationState();
813
814 InstancedState = theStructure->InstancedStructure() != NULL ?
815 theStructure->InstancedStructure()->ModificationState() : 0;
816 }
817 };
818
91c60b57 819protected: //! @name methods related to ray-tracing
820
821 //! Updates 3D scene geometry for ray-tracing.
822 Standard_Boolean updateRaytraceGeometry (const RaytraceUpdateMode theMode,
823 const Standard_Integer theViewId,
824 const Handle(OpenGl_Context)& theGlContext);
825
826 //! Updates 3D scene light sources for ray-tracing.
827 Standard_Boolean updateRaytraceLightSources (const OpenGl_Mat4& theInvModelView, const Handle(OpenGl_Context)& theGlContext);
828
829 //! Updates environment map for ray-tracing.
830 Standard_Boolean updateRaytraceEnvironmentMap (const Handle(OpenGl_Context)& theGlContext);
831
832 //! Checks to see if the OpenGL structure is modified.
833 Standard_Boolean toUpdateStructure (const OpenGl_Structure* theStructure);
834
835 //! Adds OpenGL structure to ray-traced scene geometry.
836 Standard_Boolean addRaytraceStructure (const OpenGl_Structure* theStructure,
837 const Handle(OpenGl_Context)& theGlContext);
838
839 //! Adds OpenGL groups to ray-traced scene geometry.
8c820969 840 Standard_Boolean addRaytraceGroups (const OpenGl_Structure* theStructure,
841 const OpenGl_RaytraceMaterial& theStructMat,
842 const Standard_ShortReal* theTransform,
843 const Handle(OpenGl_Context)& theGlContext);
91c60b57 844
845 //! Creates ray-tracing material properties.
846 OpenGl_RaytraceMaterial convertMaterial (const OpenGl_AspectFace* theAspect,
847 const Handle(OpenGl_Context)& theGlContext);
848
849 //! Adds OpenGL primitive array to ray-traced scene geometry.
850 OpenGl_TriangleSet* addRaytracePrimitiveArray (const OpenGl_PrimitiveArray* theArray,
851 const Standard_Integer theMatID,
852 const OpenGl_Mat4* theTrans);
853
854 //! Adds vertex indices from OpenGL primitive array to ray-traced scene geometry.
855 Standard_Boolean addRaytraceVertexIndices (OpenGl_TriangleSet& theSet,
856 const Standard_Integer theMatID,
857 const Standard_Integer theCount,
858 const Standard_Integer theOffset,
859 const OpenGl_PrimitiveArray& theArray);
860
861 //! Adds OpenGL triangle array to ray-traced scene geometry.
862 Standard_Boolean addRaytraceTriangleArray (OpenGl_TriangleSet& theSet,
863 const Standard_Integer theMatID,
864 const Standard_Integer theCount,
865 const Standard_Integer theOffset,
866 const Handle(Graphic3d_IndexBuffer)& theIndices);
867
868 //! Adds OpenGL triangle fan array to ray-traced scene geometry.
869 Standard_Boolean addRaytraceTriangleFanArray (OpenGl_TriangleSet& theSet,
870 const Standard_Integer theMatID,
871 const Standard_Integer theCount,
872 const Standard_Integer theOffset,
873 const Handle(Graphic3d_IndexBuffer)& theIndices);
874
875 //! Adds OpenGL triangle strip array to ray-traced scene geometry.
876 Standard_Boolean addRaytraceTriangleStripArray (OpenGl_TriangleSet& theSet,
877 const Standard_Integer theMatID,
878 const Standard_Integer theCount,
879 const Standard_Integer theOffset,
880 const Handle(Graphic3d_IndexBuffer)& theIndices);
881
882 //! Adds OpenGL quadrangle array to ray-traced scene geometry.
883 Standard_Boolean addRaytraceQuadrangleArray (OpenGl_TriangleSet& theSet,
884 const Standard_Integer theMatID,
885 const Standard_Integer theCount,
886 const Standard_Integer theOffset,
887 const Handle(Graphic3d_IndexBuffer)& theIndices);
888
889 //! Adds OpenGL quadrangle strip array to ray-traced scene geometry.
890 Standard_Boolean addRaytraceQuadrangleStripArray (OpenGl_TriangleSet& theSet,
891 const Standard_Integer theMatID,
892 const Standard_Integer theCount,
893 const Standard_Integer theOffset,
894 const Handle(Graphic3d_IndexBuffer)& theIndices);
895
896 //! Adds OpenGL polygon array to ray-traced scene geometry.
897 Standard_Boolean addRaytracePolygonArray (OpenGl_TriangleSet& theSet,
898 const Standard_Integer theMatID,
899 const Standard_Integer theCount,
900 const Standard_Integer theOffset,
901 const Handle(Graphic3d_IndexBuffer)& theIndices);
902
903 //! Uploads ray-trace data to the GPU.
904 Standard_Boolean uploadRaytraceData (const Handle(OpenGl_Context)& theGlContext);
905
906 //! Generates shader prefix based on current ray-tracing options.
907 TCollection_AsciiString generateShaderPrefix (const Handle(OpenGl_Context)& theGlContext) const;
908
909 //! Performs safe exit when shaders initialization fails.
910 Standard_Boolean safeFailBack (const TCollection_ExtendedString& theMessage,
911 const Handle(OpenGl_Context)& theGlContext);
912
913 //! Loads and compiles shader object from specified source.
914 Handle(OpenGl_ShaderObject) initShader (const GLenum theType,
915 const ShaderSource& theSource,
916 const Handle(OpenGl_Context)& theGlContext);
917
189f85a3 918 //! Creates shader program from the given vertex and fragment shaders.
919 Handle(OpenGl_ShaderProgram) initProgram (const Handle(OpenGl_Context)& theGlContext,
920 const Handle(OpenGl_ShaderObject)& theVertShader,
921 const Handle(OpenGl_ShaderObject)& theFragShader);
922
91c60b57 923 //! Initializes OpenGL/GLSL shader programs.
c357e426 924 Standard_Boolean initRaytraceResources (const Handle(OpenGl_Context)& theGlContext);
91c60b57 925
926 //! Releases OpenGL/GLSL shader programs.
927 void releaseRaytraceResources (const Handle(OpenGl_Context)& theGlContext);
928
bf02aa7d 929 //! Updates auxiliary OpenGL frame buffers.
930 Standard_Boolean updateRaytraceBuffers (const Standard_Integer theSizeX,
91c60b57 931 const Standard_Integer theSizeY,
932 const Handle(OpenGl_Context)& theGlContext);
933
934 //! Generates viewing rays for corners of screen quad.
935 void updateCamera (const OpenGl_Mat4& theOrientation,
936 const OpenGl_Mat4& theViewMapping,
937 OpenGl_Vec3* theOrigins,
938 OpenGl_Vec3* theDirects,
939 OpenGl_Mat4& theUnView);
940
941 //! Binds ray-trace textures to corresponding texture units.
942 void bindRaytraceTextures (const Handle(OpenGl_Context)& theGlContext);
943
944 //! Unbinds ray-trace textures from corresponding texture unit.
945 void unbindRaytraceTextures (const Handle(OpenGl_Context)& theGlContext);
946
947 //! Sets uniform state for the given ray-tracing shader program.
c357e426 948 Standard_Boolean setUniformState (const OpenGl_Vec3* theOrigins,
91c60b57 949 const OpenGl_Vec3* theDirects,
950 const OpenGl_Mat4& theUnviewMat,
951 const Standard_Integer theProgramId,
952 const Handle(OpenGl_Context)& theGlContext);
953
954 //! Runs ray-tracing shader programs.
c357e426 955 Standard_Boolean runRaytraceShaders (const Standard_Integer theSizeX,
91c60b57 956 const Standard_Integer theSizeY,
957 const OpenGl_Vec3* theOrigins,
958 const OpenGl_Vec3* theDirects,
959 const OpenGl_Mat4& theUnviewMat,
bf02aa7d 960 Graphic3d_Camera::Projection theProjection,
38a0206f 961 OpenGl_FrameBuffer* theReadDrawFbo,
91c60b57 962 const Handle(OpenGl_Context)& theGlContext);
963
964 //! Redraws the window using OpenGL/GLSL ray-tracing.
c357e426 965 Standard_Boolean raytrace (const Standard_Integer theSizeX,
91c60b57 966 const Standard_Integer theSizeY,
bf02aa7d 967 Graphic3d_Camera::Projection theProjection,
38a0206f 968 OpenGl_FrameBuffer* theReadDrawFbo,
91c60b57 969 const Handle(OpenGl_Context)& theGlContext);
970
971protected: //! @name fields related to ray-tracing
972
973 //! Result of shaders initialization.
974 RaytraceInitStatus myRaytraceInitStatus;
975
976 //! Is geometry data valid?
977 Standard_Boolean myIsRaytraceDataValid;
978
979 //! Warning about missing extension GL_ARB_bindless_texture has been displayed?
980 Standard_Boolean myIsRaytraceWarnTextures;
981
982 //! 3D scene geometry data for ray-tracing.
983 OpenGl_RaytraceGeometry myRaytraceGeometry;
984
985 //! Compile-time ray-tracing parameters.
986 RaytracingParams myRaytraceParameters;
987
988 //! Radius of bounding sphere of the scene.
989 Standard_ShortReal myRaytraceSceneRadius;
990 //! Scene epsilon to prevent self-intersections.
991 Standard_ShortReal myRaytraceSceneEpsilon;
992
993 //! OpenGL/GLSL source of ray-tracing fragment shader.
994 ShaderSource myRaytraceShaderSource;
995 //! OpenGL/GLSL source of adaptive-AA fragment shader.
996 ShaderSource myPostFSAAShaderSource;
997
998 //! OpenGL/GLSL ray-tracing fragment shader.
999 Handle(OpenGl_ShaderObject) myRaytraceShader;
1000 //! OpenGL/GLSL adaptive-AA fragment shader.
1001 Handle(OpenGl_ShaderObject) myPostFSAAShader;
1002
1003 //! OpenGL/GLSL ray-tracing shader program.
1004 Handle(OpenGl_ShaderProgram) myRaytraceProgram;
1005 //! OpenGL/GLSL adaptive-AA shader program.
1006 Handle(OpenGl_ShaderProgram) myPostFSAAProgram;
189f85a3 1007 //! OpenGL/GLSL program for displaying texture.
1008 Handle(OpenGl_ShaderProgram) myOutImageProgram;
91c60b57 1009
1010 //! Texture buffer of data records of bottom-level BVH nodes.
1011 Handle(OpenGl_TextureBufferArb) mySceneNodeInfoTexture;
1012 //! Texture buffer of minimum points of bottom-level BVH nodes.
1013 Handle(OpenGl_TextureBufferArb) mySceneMinPointTexture;
1014 //! Texture buffer of maximum points of bottom-level BVH nodes.
1015 Handle(OpenGl_TextureBufferArb) mySceneMaxPointTexture;
1016 //! Texture buffer of transformations of high-level BVH nodes.
1017 Handle(OpenGl_TextureBufferArb) mySceneTransformTexture;
1018
1019 //! Texture buffer of vertex coords.
1020 Handle(OpenGl_TextureBufferArb) myGeometryVertexTexture;
1021 //! Texture buffer of vertex normals.
1022 Handle(OpenGl_TextureBufferArb) myGeometryNormalTexture;
1023 //! Texture buffer of vertex UV coords.
1024 Handle(OpenGl_TextureBufferArb) myGeometryTexCrdTexture;
1025 //! Texture buffer of triangle indices.
1026 Handle(OpenGl_TextureBufferArb) myGeometryTriangTexture;
1027
1028 //! Texture buffer of material properties.
1029 Handle(OpenGl_TextureBufferArb) myRaytraceMaterialTexture;
1030 //! Texture buffer of light source properties.
1031 Handle(OpenGl_TextureBufferArb) myRaytraceLightSrcTexture;
1032
1033 //! 1st framebuffer (FBO) to perform adaptive FSAA.
bf02aa7d 1034 Handle(OpenGl_FrameBuffer) myRaytraceFBO1[2];
91c60b57 1035 //! 2nd framebuffer (FBO) to perform adaptive FSAA.
bf02aa7d 1036 Handle(OpenGl_FrameBuffer) myRaytraceFBO2[2];
91c60b57 1037 //! Framebuffer (FBO) for preliminary OpenGL output.
1038 Handle(OpenGl_FrameBuffer) myOpenGlFBO;
3c4b62a4 1039 Handle(OpenGl_FrameBuffer) myOpenGlFBO2;
91c60b57 1040
1041 //! Vertex buffer (VBO) for drawing dummy quad.
1042 OpenGl_VertexBuffer myRaytraceScreenQuad;
1043
1044 //! Cached locations of frequently used uniform variables.
1045 Standard_Integer myUniformLocations[2][OpenGl_RT_NbVariables];
1046
1047 //! State of OpenGL structures reflected to ray-tracing.
d4aaad5b 1048 std::map<const OpenGl_Structure*, StructState> myStructureStates;
91c60b57 1049
1050 //! PrimitiveArray to TriangleSet map for scene partial update.
1051 std::map<Standard_Size, OpenGl_TriangleSet*> myArrayToTrianglesMap;
1052
189f85a3 1053 //! Set of IDs of non-raytracable elements (to detect updates).
1054 std::set<Standard_Integer> myNonRaytraceStructureIDs;
1055
1056 //! Render filter to filter out all raytracable structures.
91c60b57 1057 Handle(OpenGl_RaytraceFilter) myRaytraceFilter;
1058
1059 //! Marks if environment map should be updated.
1060 Standard_Boolean myToUpdateEnvironmentMap;
1061
1062 //! State of OpenGL layer list.
189f85a3 1063 Standard_Size myLayerListState;
1064
1065 //! Number of accumulated frames (for progressive rendering).
1066 Standard_Integer myAccumFrames;
1067
1068 //! Stored ray origins used for detection of camera movements.
1069 OpenGl_Vec3 myPreviousOrigins[3];
1070
1071 //! Bullard RNG to produce random sequence.
1072 math_BullardGenerator myRNG;
91c60b57 1073
679ecdee 1074public:
1075
1c35b92f 1076 DEFINE_STANDARD_ALLOC
c357e426 1077 DEFINE_STANDARD_RTTI(OpenGl_View, Graphic3d_CView) // Type definition
679ecdee 1078
c357e426 1079 friend class OpenGl_GraphicDriver;
a89742cf 1080 friend class OpenGl_Workspace;
2166f0fa
SK
1081};
1082
679ecdee 1083#endif // _OpenGl_View_Header