Implementation of OpenGl view. More...

#include <OpenGl_View.hxx>

Inheritance diagram for OpenGl_View:

Data Structures
struct	RaytracingParams
	Compile-time ray-tracing parameters. More...

class	ShaderSource
	Tool class for management of shader sources. More...

struct	StructState
	Describes state of OpenGL structure. More...

Public Member Functions
	OpenGl_View (const Handle< Graphic3d_StructureManager > &theMgr, const Handle< OpenGl_GraphicDriver > &theDriver, const Handle< OpenGl_Caps > &theCaps, OpenGl_StateCounter *theCounter)
	Constructor. More...

virtual	~OpenGl_View ()
	Default destructor. More...

void	ReleaseGlResources (const Handle< OpenGl_Context > &theCtx)

virtual void	Remove () override
	Deletes and erases the view. More...

Standard_Boolean	SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer) override

virtual void	SetWindow (const Handle< Aspect_Window > &theWindow, const Aspect_RenderingContext theContext) override
	Creates and maps rendering window to the view. More...

virtual Handle< Aspect_Window >	Window () const override
	Returns window associated with the view. More...

virtual Standard_Boolean	IsDefined () const override
	Returns True if the window associated to the view is defined. More...

virtual void	Resized () override
	Handle changing size of the rendering window. More...

virtual void	Redraw () override
	Redraw content of the view. More...

virtual void	RedrawImmediate () override
	Redraw immediate content of the view. More...

virtual void	Invalidate () override
	Marks BVH tree for given priority list as dirty and marks primitive set for rebuild. More...

virtual Standard_Boolean	IsInvalidated () override
	Return true if view content cache has been invalidated. More...

const Graphic3d_GraduatedTrihedron &	GetGraduatedTrihedron () override
	Returns data of a graduated trihedron. More...

virtual void	GraduatedTrihedronDisplay (const Graphic3d_GraduatedTrihedron &theTrihedronData) override
	Displays Graduated Trihedron. More...

virtual void	GraduatedTrihedronErase () override
	Erases Graduated Trihedron. More...

virtual void	GraduatedTrihedronMinMaxValues (const Graphic3d_Vec3 theMin, const Graphic3d_Vec3 theMax) override
	Sets minimum and maximum points of scene bounding box for Graduated Trihedron stored in graphic view object. More...

virtual Standard_Boolean	BufferDump (Image_PixMap &theImage, const Graphic3d_BufferType &theBufferType) override
	Dump active rendering buffer into specified memory buffer. In Ray-Tracing allow to get a raw HDR buffer using Graphic3d_BT_RGB_RayTraceHdrLeft buffer type, only Left view will be dumped ignoring stereoscopic parameter. More...

virtual Standard_Boolean	Export (const Standard_CString theFileName, const Graphic3d_ExportFormat theFormat, const Graphic3d_SortType theSortType=Graphic3d_ST_BSP_Tree) override
	Export scene into the one of the Vector graphics formats (SVG, PS, PDF...). In contrast to Bitmaps, Vector graphics is scalable (so you may got quality benefits on printing to laser printer). Notice however that results may differ a lot and do not contain some elements. More...

virtual void	InvalidateBVHData (const Graphic3d_ZLayerId theLayerId) override
	Marks BVH tree and the set of BVH primitives of correspondent priority list with id theLayerId as outdated. More...

virtual void	AddZLayer (const Graphic3d_ZLayerId theLayerId) override
	Insert a new top-level z layer with the given ID. More...

virtual void	RemoveZLayer (const Graphic3d_ZLayerId theLayerId) override
	Remove a z layer with the given ID. More...

virtual void	SetZLayerSettings (const Graphic3d_ZLayerId theLayerId, const Graphic3d_ZLayerSettings &theSettings) override
	Sets the settings for a single Z layer of specified view. More...

virtual Standard_Integer	ZLayerMax () const override
	Returns the maximum Z layer ID. First layer ID is Graphic3d_ZLayerId_Default, last ID is ZLayerMax(). More...

virtual void	InvalidateZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId) const override
	Returns the bounding box of all structures displayed in the Z layer. Never fails. If Z layer does not exist nothing happens. More...

virtual Bnd_Box	ZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId, const Handle< Graphic3d_Camera > &theCamera, const Standard_Integer theWindowWidth, const Standard_Integer theWindowHeight, const Standard_Boolean theToIncludeAuxiliary) const override
	Returns the bounding box of all structures displayed in the Z layer. If Z layer does not exist the empty box is returned. More...

virtual Handle< Standard_Transient >	FBO () const override
	Returns pointer to an assigned framebuffer object. More...

virtual void	SetFBO (const Handle< Standard_Transient > &theFbo) override
	Sets framebuffer object for offscreen rendering. More...

virtual Handle< Standard_Transient >	FBOCreate (const Standard_Integer theWidth, const Standard_Integer theHeight) override
	Generate offscreen FBO in the graphic library. If not supported on hardware returns NULL. More...

virtual void	FBORelease (Handle< Standard_Transient > &theFbo) override
	Remove offscreen FBO from the graphic library. More...

virtual void	FBOGetDimensions (const Handle< Standard_Transient > &theFbo, Standard_Integer &theWidth, Standard_Integer &theHeight, Standard_Integer &theWidthMax, Standard_Integer &theHeightMax) override
	Read offscreen FBO configuration. More...

virtual void	FBOChangeViewport (const Handle< Standard_Transient > &theFbo, const Standard_Integer theWidth, const Standard_Integer theHeight) override
	Change offscreen FBO viewport. More...

virtual Aspect_Background	Background () const override
	Returns background fill color. More...

virtual void	SetBackground (const Aspect_Background &theBackground) override
	Sets background fill color. More...

virtual Aspect_GradientBackground	GradientBackground () const override
	Returns gradient background fill colors. More...

virtual void	SetGradientBackground (const Aspect_GradientBackground &theBackground) override
	Sets gradient background fill colors. More...

virtual TCollection_AsciiString	BackgroundImage () override
	Returns background image texture file path. More...

virtual void	SetBackgroundImage (const TCollection_AsciiString &theFilePath) override
	Sets background image texture file path. More...

virtual Aspect_FillMethod	BackgroundImageStyle () const override
	Returns background image fill style. More...

virtual void	SetBackgroundImageStyle (const Aspect_FillMethod theFillStyle) override
	Sets background image fill style. More...

virtual Handle< Graphic3d_TextureEnv >	TextureEnv () const override
	Returns environment texture set for the view. More...

virtual void	SetTextureEnv (const Handle< Graphic3d_TextureEnv > &theTextureEnv) override
	Sets environment texture for the view. More...

virtual Standard_Boolean	IsCullingEnabled () const override
	Returns the state of frustum culling optimization. More...

virtual void	SetCullingEnabled (const Standard_Boolean theIsEnabled) override
	Enables or disables frustum culling optimization. More...

virtual Graphic3d_TypeOfBackfacingModel	BackfacingModel () const override
	Return backfacing model used for the view. More...

virtual void	SetBackfacingModel (const Graphic3d_TypeOfBackfacingModel theModel) override
	Sets backfacing model for the view. More...

virtual const Handle< Graphic3d_Camera > &	Camera () const override
	Returns camera object of the view. More...

const gp_XYZ &	LocalOrigin () const
	Returns local camera origin currently set for rendering, might be modified during rendering. More...

void	SetLocalOrigin (const gp_XYZ &theOrigin)
	Setup local camera origin currently set for rendering. More...

virtual void	SetCamera (const Handle< Graphic3d_Camera > &theCamera) override
	Sets camera used by the view. More...

virtual const Handle< Graphic3d_LightSet > &	Lights () const override
	Returns list of lights of the view. More...

virtual void	SetLights (const Handle< Graphic3d_LightSet > &theLights) override
	Sets list of lights for the view. More...

virtual const Handle< Graphic3d_SequenceOfHClipPlane > &	ClipPlanes () const override
	Returns list of clip planes set for the view. More...

virtual void	SetClipPlanes (const Handle< Graphic3d_SequenceOfHClipPlane > &thePlanes) override
	Sets list of clip planes for the view. More...

virtual void	DiagnosticInformation (TColStd_IndexedDataMapOfStringString &theDict, Graphic3d_DiagnosticInfo theFlags) const override
	Fill in the dictionary with diagnostic info. Should be called within rendering thread. More...

const Quantity_ColorRGBA &	BackgroundColor () const
	Returns background color. More...

OpenGl_GraduatedTrihedron &	ChangeGraduatedTrihedron ()
	Change graduated trihedron. More...

void	SetTextureEnv (const Handle< OpenGl_Context > &theCtx, const Handle< Graphic3d_TextureEnv > &theTexture)

void	SetBackgroundTextureStyle (const Aspect_FillMethod FillStyle)

void	SetBackgroundGradient (const Quantity_Color &AColor1, const Quantity_Color &AColor2, const Aspect_GradientFillMethod AType)

void	SetBackgroundGradientType (const Aspect_GradientFillMethod AType)

const OpenGl_LayerList &	LayerList () const
	Returns list of OpenGL Z-layers. More...

const Handle< OpenGl_Window >	GlWindow () const
	Returns OpenGL window implementation. More...

const Handle< OpenGl_TextureSet > &	GlTextureEnv () const
	Returns OpenGL environment map. More...

const OpenGl_BVHTreeSelector &	BVHTreeSelector () const
	Returns selector for BVH tree, providing a possibility to store information about current view volume and to detect which objects are overlapping it. More...

bool	HasImmediateStructures () const
	Returns true if there are immediate structures to display. More...

Public Member Functions inherited from Graphic3d_CView
	Graphic3d_CView (const Handle< Graphic3d_StructureManager > &theMgr)
	Constructor. More...

virtual	~Graphic3d_CView ()
	Destructor. More...

Standard_Integer	Identification () const
	Returns the identification number of the view. More...

virtual void	Activate ()
	Activates the view. Maps presentations defined within structure manager onto this view. More...

virtual void	Deactivate ()
	Deactivates the view. Unmaps presentations defined within structure manager. The view in deactivated state will ignore actions on structures such as Display(). More...

Standard_Boolean	IsActive () const
	Returns the activity flag of the view. More...

Standard_Boolean	IsRemoved () const
	Returns true if the view was removed. More...

Graphic3d_TypeOfShadingModel	ShadingModel () const
	Returns default Shading Model of the view; Graphic3d_TOSM_FRAGMENT by default. More...

void	SetShadingModel (Graphic3d_TypeOfShadingModel theModel)
	Sets default Shading Model of the view. Will throw an exception on attempt to set Graphic3d_TOSM_DEFAULT. More...

Graphic3d_TypeOfVisualization	VisualizationType () const
	Returns visualization type of the view. More...

void	SetVisualizationType (const Graphic3d_TypeOfVisualization theType)
	Sets visualization type of the view. More...

void	SetComputedMode (const Standard_Boolean theMode)
	Switches computed HLR mode in the view. More...

Standard_Boolean	ComputedMode () const
	Returns the computed HLR mode state. More...

void	ReCompute (const Handle< Graphic3d_Structure > &theStructure)
	Computes the new presentation of the structure displayed in this view with the type Graphic3d_TOS_COMPUTED. More...

void	Update (const Graphic3d_ZLayerId theLayerId=Graphic3d_ZLayerId_UNKNOWN)
	Invalidates bounding box of specified ZLayerId. More...

void	Compute ()
	Computes the new presentation of the structures displayed in this view with the type Graphic3d_TOS_COMPUTED. More...

Standard_Boolean	ContainsFacet () const
	Returns Standard_True if one of the structures displayed in the view contains Polygons, Triangles or Quadrangles. More...

Standard_Boolean	ContainsFacet (const Graphic3d_MapOfStructure &theSet) const
	Returns Standard_True if one of the structures in the set contains Polygons, Triangles or Quadrangles. More...

void	DisplayedStructures (Graphic3d_MapOfStructure &theStructures) const
	Returns the set of structures displayed in this view. More...

virtual Standard_Integer	NumberOfDisplayedStructures () const
	Returns number of displayed structures in the view. More...

const Handle< Graphic3d_NMapOfTransient > &	HiddenObjects () const
	Returns map of objects hidden within this specific view (not viewer-wise). More...

Handle< Graphic3d_NMapOfTransient > &	ChangeHiddenObjects ()
	Returns map of objects hidden within this specific view (not viewer-wise). More...

Standard_Boolean	IsComputed (const Standard_Integer theStructId, Handle< Graphic3d_Structure > &theComputedStruct) const
	Returns Standard_True in case if the structure with the given <theStructId> is in list of structures to be computed and stores computed struct to <theComputedStruct>. More...

virtual Bnd_Box	MinMaxValues (const Standard_Boolean theToIncludeAuxiliary=Standard_False) const
	Returns the bounding box of all structures displayed in the view. If theToIncludeAuxiliary is TRUE, then the boundary box also includes minimum and maximum limits of graphical elements forming parts of infinite and other auxiliary structures. More...

Bnd_Box	MinMaxValues (const Graphic3d_MapOfStructure &theSet, const Standard_Boolean theToIncludeAuxiliary=Standard_False) const
	Returns the coordinates of the boundary box of all structures in the set <theSet>. If <theToIgnoreInfiniteFlag> is TRUE, then the boundary box also includes minimum and maximum limits of graphical elements forming parts of infinite structures. More...

const Handle< Graphic3d_StructureManager > &	StructureManager () const
	Returns the structure manager handle which manage structures associated with this view. More...

Standard_Real	ConsiderZoomPersistenceObjects ()
	Returns zoom-scale factor. More...

virtual void	CopySettings (const Handle< Graphic3d_CView > &theOther)
	Copy visualization settings from another view. Method is used for cloning views in viewer when its required to create view with same view properties. More...

const Graphic3d_RenderingParams &	RenderingParams () const
	Returns current rendering parameters and effect settings. More...

Graphic3d_RenderingParams &	ChangeRenderingParams ()
	Returns reference to current rendering parameters and effect settings. More...

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor. More...

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing. More...

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter. More...

virtual	~Standard_Transient ()
	Destructor must be virtual. More...

virtual void	Delete () const
	Memory deallocator for transient classes. More...

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object. More...

Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type. More...

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName. More...

Standard_Boolean	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...

Standard_Integer	GetRefCount () const
	Get the reference counter of this object. More...

void	IncrementRefCounter () const
	Increments the reference counter of this object. More...

Standard_Integer	DecrementRefCounter () const
	Decrements the reference counter of this object; returns the decremented value. More...

Protected Member Functions
Internal methods for managing GL resources
void	initTextureEnv (const Handle< OpenGl_Context > &theContext)
	Initializes OpenGl resource for environment texture. More...

low-level redrawing sub-routines
virtual void	redraw (const Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer theReadDrawFbo, OpenGl_FrameBuffer theOitAccumFbo)
	Redraws view for the given monographic camera projection, or left/right eye. More...

virtual bool	redrawImmediate (const Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer theReadFbo, OpenGl_FrameBuffer theDrawFbo, OpenGl_FrameBuffer *theOitAccumFbo, const Standard_Boolean theIsPartialUpdate=Standard_False)
	Redraws view for the given monographic camera projection, or left/right eye. More...

bool	blitBuffers (OpenGl_FrameBuffer theReadFbo, OpenGl_FrameBuffer theDrawFbo, const Standard_Boolean theToFlip=Standard_False)
	Blit image from/to specified buffers. More...

void	bindDefaultFbo (OpenGl_FrameBuffer *theCustomFbo=NULL)
	Setup default FBO. More...

methods related to ray-tracing
Standard_Boolean	updateRaytraceGeometry (const RaytraceUpdateMode theMode, const Standard_Integer theViewId, const Handle< OpenGl_Context > &theGlContext)
	Updates 3D scene geometry for ray-tracing. More...

Standard_Boolean	updateRaytraceLightSources (const OpenGl_Mat4 &theInvModelView, const Handle< OpenGl_Context > &theGlContext)
	Updates 3D scene light sources for ray-tracing. More...

Standard_Boolean	toUpdateStructure (const OpenGl_Structure *theStructure)
	Checks to see if the OpenGL structure is modified. More...

Standard_Boolean	addRaytraceStructure (const OpenGl_Structure *theStructure, const Handle< OpenGl_Context > &theGlContext)
	Adds OpenGL structure to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceGroups (const OpenGl_Structure *theStructure, const OpenGl_RaytraceMaterial &theStructMat, const Handle< Geom_Transformation > &theTrsf, const Handle< OpenGl_Context > &theGlContext)
	Adds OpenGL groups to ray-traced scene geometry. More...

OpenGl_RaytraceMaterial	convertMaterial (const OpenGl_AspectFace *theAspect, const Handle< OpenGl_Context > &theGlContext)
	Creates ray-tracing material properties. More...

Handle< OpenGl_TriangleSet >	addRaytracePrimitiveArray (const OpenGl_PrimitiveArray theArray, const Standard_Integer theMatID, const OpenGl_Mat4 theTrans)
	Adds OpenGL primitive array to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceVertexIndices (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const OpenGl_PrimitiveArray &theArray)
	Adds vertex indices from OpenGL primitive array to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceTriangleArray (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const Handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL triangle array to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceTriangleFanArray (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const Handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL triangle fan array to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceTriangleStripArray (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const Handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL triangle strip array to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceQuadrangleArray (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const Handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL quadrangle array to ray-traced scene geometry. More...

Standard_Boolean	addRaytraceQuadrangleStripArray (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const Handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL quadrangle strip array to ray-traced scene geometry. More...

Standard_Boolean	addRaytracePolygonArray (OpenGl_TriangleSet &theSet, const Standard_Integer theMatID, const Standard_Integer theCount, const Standard_Integer theOffset, const Handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL polygon array to ray-traced scene geometry. More...

Standard_Boolean	uploadRaytraceData (const Handle< OpenGl_Context > &theGlContext)
	Uploads ray-trace data to the GPU. More...

TCollection_AsciiString	generateShaderPrefix (const Handle< OpenGl_Context > &theGlContext) const
	Generates shader prefix based on current ray-tracing options. More...

Standard_Boolean	safeFailBack (const TCollection_ExtendedString &theMessage, const Handle< OpenGl_Context > &theGlContext)
	Performs safe exit when shaders initialization fails. More...

Handle< OpenGl_ShaderObject >	initShader (const GLenum theType, const ShaderSource &theSource, const Handle< OpenGl_Context > &theGlContext)
	Loads and compiles shader object from specified source. More...

Handle< OpenGl_ShaderProgram >	initProgram (const Handle< OpenGl_Context > &theGlContext, const Handle< OpenGl_ShaderObject > &theVertShader, const Handle< OpenGl_ShaderObject > &theFragShader)
	Creates shader program from the given vertex and fragment shaders. More...

Standard_Boolean	initRaytraceResources (const Handle< OpenGl_Context > &theGlContext)
	Initializes OpenGL/GLSL shader programs. More...

void	releaseRaytraceResources (const Handle< OpenGl_Context > &theGlContext, const Standard_Boolean theToRebuild=Standard_False)
	Releases OpenGL/GLSL shader programs. More...

Standard_Boolean	updateRaytraceBuffers (const Standard_Integer theSizeX, const Standard_Integer theSizeY, const Handle< OpenGl_Context > &theGlContext)
	Updates auxiliary OpenGL frame buffers. More...

void	updateCamera (const OpenGl_Mat4 &theOrientation, const OpenGl_Mat4 &theViewMapping, OpenGl_Vec3 theOrigins, OpenGl_Vec3 theDirects, OpenGl_Mat4 &theView, OpenGl_Mat4 &theUnView)
	Generates viewing rays for corners of screen quad. (ray tracing; path tracing for orthographic camera) More...

void	updatePerspCameraPT (const OpenGl_Mat4 &theOrientation, const OpenGl_Mat4 &theViewMapping, Graphic3d_Camera::Projection theProjection, OpenGl_Mat4 &theViewPr, OpenGl_Mat4 &theUnview, const int theWinSizeX, const int theWinSizeY)
	Generate viewing rays (path tracing, perspective camera). More...

void	bindRaytraceTextures (const Handle< OpenGl_Context > &theGlContext)
	Binds ray-trace textures to corresponding texture units. More...

void	unbindRaytraceTextures (const Handle< OpenGl_Context > &theGlContext)
	Unbinds ray-trace textures from corresponding texture unit. More...

Standard_Boolean	setUniformState (const Standard_Integer theProgramId, const Standard_Integer theSizeX, const Standard_Integer theSizeY, Graphic3d_Camera::Projection theProjection, const Handle< OpenGl_Context > &theGlContext)
	Sets uniform state for the given ray-tracing shader program. More...

Standard_Boolean	runRaytraceShaders (const Standard_Integer theSizeX, const Standard_Integer theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const Handle< OpenGl_Context > &theGlContext)
	Runs ray-tracing shader programs. More...

Standard_Boolean	runRaytrace (const Standard_Integer theSizeX, const Standard_Integer theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const Handle< OpenGl_Context > &theGlContext)
	Runs classical (Whitted-style) ray-tracing kernel. More...

Standard_Boolean	runPathtrace (const Standard_Integer theSizeX, const Standard_Integer theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const Handle< OpenGl_Context > &theGlContext)
	Runs path tracing (global illumination) kernel. More...

Standard_Boolean	raytrace (const Standard_Integer theSizeX, const Standard_Integer theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const Handle< OpenGl_Context > &theGlContext)
	Redraws the window using OpenGL/GLSL ray-tracing or path tracing. More...

Protected Member Functions inherited from Graphic3d_DataStructureManager
	Graphic3d_DataStructureManager ()
	Initializes the manager <me>. More...

Protected Attributes
Rendering properties
GLint	myFboColorFormat
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers). More...

GLint	myFboDepthFormat
	sized format for depth-stencil attachments More...

OpenGl_ColorFormats	myFboOitColorConfig
	selected color format configuration for OIT color attachments More...

Handle< OpenGl_FrameBuffer >	myMainSceneFbos [2]
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers). More...

Handle< OpenGl_FrameBuffer >	myMainSceneFbosOit [2]
	Additional buffers for transparent draw of main layer. More...

Handle< OpenGl_FrameBuffer >	myImmediateSceneFbos [2]
	Additional buffers for immediate layer in stereo mode. More...

Handle< OpenGl_FrameBuffer >	myImmediateSceneFbosOit [2]
	Additional buffers for transparency draw of immediate layer. More...

OpenGl_VertexBuffer	myFullScreenQuad
	Vertices for full-screen quad rendering. More...

OpenGl_VertexBuffer	myFullScreenQuadFlip
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers). More...

Standard_Boolean	myToFlipOutput
	Flag to draw result image upside-down. More...

unsigned int	myFrameCounter
	redraw counter, for debugging More...

Standard_Boolean	myHasFboBlit
	disable FBOs on failure More...

Standard_Boolean	myToDisableOIT
	disable OIT on failure More...

Standard_Boolean	myToDisableOITMSAA
	disable OIT with MSAA on failure More...

Standard_Boolean	myToDisableMSAA
	disable MSAA after failure More...

Standard_Boolean	myTransientDrawToFront
	optimization flag for immediate mode (to render directly to the front buffer) More...

Standard_Boolean	myBackBufferRestored
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers). More...

Standard_Boolean	myIsImmediateDrawn
	flag indicates that immediate mode buffer contains some data More...

Background parameters
OpenGl_AspectFace *	myTextureParams
	Stores texture and its parameters for textured background. More...

OpenGl_BackgroundArray *	myBgGradientArray
	Primitive array for gradient background. More...

OpenGl_BackgroundArray *	myBgTextureArray
	Primitive array for texture background. More...

Protected Attributes inherited from Graphic3d_CView
Standard_Integer	myId

Graphic3d_RenderingParams	myRenderParams

Handle< Graphic3d_StructureManager >	myStructureManager

Graphic3d_SequenceOfStructure	myStructsToCompute

Graphic3d_SequenceOfStructure	myStructsComputed

Graphic3d_MapOfStructure	myStructsDisplayed

Handle< Graphic3d_NMapOfTransient >	myHiddenObjects

Standard_Boolean	myIsInComputedMode

Standard_Boolean	myIsActive

Standard_Boolean	myIsRemoved

Graphic3d_TypeOfShadingModel	myShadingModel

Graphic3d_TypeOfVisualization	myVisualization

Rendering of GL graphics (with prepared drawing buffer).
typedef std::pair< Standard_Size, Standard_Size >	StateInfo
	main list of displayed structure, sorted by layers More...

OpenGl_GraphicDriver *	myDriver
	main list of displayed structure, sorted by layers More...

Handle< OpenGl_Window >	myWindow
	main list of displayed structure, sorted by layers More...

Handle< OpenGl_Workspace >	myWorkspace
	main list of displayed structure, sorted by layers More...

Handle< OpenGl_Caps >	myCaps
	main list of displayed structure, sorted by layers More...

Standard_Boolean	myWasRedrawnGL
	main list of displayed structure, sorted by layers More...

Standard_Boolean	myCulling
	main list of displayed structure, sorted by layers More...

Graphic3d_TypeOfBackfacingModel	myBackfacing
	main list of displayed structure, sorted by layers More...

Quantity_ColorRGBA	myBgColor
	main list of displayed structure, sorted by layers More...

Handle< Graphic3d_SequenceOfHClipPlane >	myClipPlanes
	main list of displayed structure, sorted by layers More...

Handle< Graphic3d_Camera >	myCamera
	main list of displayed structure, sorted by layers More...

gp_XYZ	myLocalOrigin
	main list of displayed structure, sorted by layers More...

Handle< OpenGl_FrameBuffer >	myFBO
	main list of displayed structure, sorted by layers More...

Standard_Boolean	myToShowGradTrihedron
	main list of displayed structure, sorted by layers More...

TCollection_AsciiString	myBackgroundImagePath
	main list of displayed structure, sorted by layers More...

Handle< Graphic3d_TextureEnv >	myTextureEnvData
	main list of displayed structure, sorted by layers More...

Graphic3d_GraduatedTrihedron	myGTrihedronData
	main list of displayed structure, sorted by layers More...

Handle< Graphic3d_LightSet >	myNoShadingLight
	main list of displayed structure, sorted by layers More...

Handle< Graphic3d_LightSet >	myLights
	main list of displayed structure, sorted by layers More...

OpenGl_LayerList	myZLayers
	main list of displayed structure, sorted by layers More...

Graphic3d_WorldViewProjState	myWorldViewProjState
	camera modification state More...

OpenGl_StateCounter *	myStateCounter
	main list of displayed structure, sorted by layers More...

Standard_Size	myCurrLightSourceState
	main list of displayed structure, sorted by layers More...

Standard_Size	myLightsRevision
	main list of displayed structure, sorted by layers More...

StateInfo	myLastOrientationState
	main list of displayed structure, sorted by layers More...

StateInfo	myLastViewMappingState
	main list of displayed structure, sorted by layers More...

StateInfo	myLastLightSourceState
	main list of displayed structure, sorted by layers More...

OpenGl_BVHTreeSelector	myBVHSelector
	Is needed for selection of overlapping objects and storage of the current view volume. More...

OpenGl_GraduatedTrihedron	myGraduatedTrihedron
	main list of displayed structure, sorted by layers More...

OpenGl_FrameStatsPrs	myFrameStatsPrs
	main list of displayed structure, sorted by layers More...

Handle< OpenGl_TextureSet >	myTextureEnv
	main list of displayed structure, sorted by layers More...

Handle< OpenGl_FrameBuffer >	myOpenGlFBO
	Framebuffers for OpenGL output. More...

Handle< OpenGl_FrameBuffer >	myOpenGlFBO2
	main list of displayed structure, sorted by layers More...

virtual void	render (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer theReadDrawFbo, OpenGl_FrameBuffer theOitAccumFbo, const Standard_Boolean theToDrawImmediate)
	Renders the graphical contents of the view into the preprepared window or framebuffer. More...

virtual void	renderScene (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer theReadDrawFbo, OpenGl_FrameBuffer theOitAccumFbo, const Standard_Boolean theToDrawImmediate)
	Renders the graphical scene. More...

virtual void	drawBackground (const Handle< OpenGl_Workspace > &theWorkspace)
	Draw background (gradient / image) More...

virtual void	renderStructs (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer theReadDrawFbo, OpenGl_FrameBuffer theOitAccumFbo, const Standard_Boolean theToDrawImmediate)
	Render set of structures presented in the view. More...

void	renderTrihedron (const Handle< OpenGl_Workspace > &theWorkspace)
	Renders trihedron. More...

void	renderFrameStats ()
	Renders frame statistics. More...

data types related to ray-tracing
enum	RaytraceInitStatus { OpenGl_RT_NONE, OpenGl_RT_INIT, OpenGl_RT_FAIL }
	Result of OpenGL shaders initialization. More...

enum	RaytraceUpdateMode { OpenGl_GUM_CHECK, OpenGl_GUM_PREPARE, OpenGl_GUM_REBUILD }
	Describes update mode (state). More...

enum	ShaderVariableIndex { OpenGl_RT_aPosition, OpenGl_RT_uOriginLT, OpenGl_RT_uOriginLB, OpenGl_RT_uOriginRT, OpenGl_RT_uOriginRB, OpenGl_RT_uDirectLT, OpenGl_RT_uDirectLB, OpenGl_RT_uDirectRT, OpenGl_RT_uDirectRB, OpenGl_RT_uViewPrMat, OpenGl_RT_uUnviewMat, OpenGl_RT_uSceneRad, OpenGl_RT_uSceneEps, OpenGl_RT_uLightAmbnt, OpenGl_RT_uLightCount, OpenGl_RT_uBackColorTop, OpenGl_RT_uBackColorBot, OpenGl_RT_uShadowsEnabled, OpenGl_RT_uReflectEnabled, OpenGl_RT_uSphereMapEnabled, OpenGl_RT_uSphereMapForBack, OpenGl_RT_uTexSamplersArray, OpenGl_RT_uBlockedRngEnabled, OpenGl_RT_uWinSizeX, OpenGl_RT_uWinSizeY, OpenGl_RT_uAccumSamples, OpenGl_RT_uFrameRndSeed, OpenGl_RT_uOffsetX, OpenGl_RT_uOffsetY, OpenGl_RT_uSamples, OpenGl_RT_uRenderImage, OpenGl_RT_uOffsetImage, OpenGl_RT_uMaxRadiance, OpenGl_RT_NbVariables }
	Defines frequently used shader variables. More...

enum	ShaderImageNames { OpenGl_RT_OutputImageLft = 0, OpenGl_RT_OutputImageRgh = 1, OpenGl_RT_VisualErrorImageLft = 2, OpenGl_RT_VisualErrorImageRgh = 3, OpenGl_RT_TileOffsetsImageLft = 4, OpenGl_RT_TileOffsetsImageRgh = 5 }
	Defines OpenGL image samplers. More...

static const Standard_Integer	THE_DEFAULT_NB_BOUNCES = 3
	Default ray-tracing depth. More...

static const Standard_Integer	THE_DEFAULT_STACK_SIZE = 10
	Default size of traversal stack. More...

fields related to ray-tracing
RaytraceInitStatus	myRaytraceInitStatus
	Result of RT/PT shaders initialization. More...

Standard_Boolean	myIsRaytraceDataValid
	Is ray-tracing geometry data valid? More...

Standard_Boolean	myIsRaytraceWarnTextures
	True if warning about missing extension GL_ARB_bindless_texture has been displayed. More...

OpenGl_RaytraceGeometry	myRaytraceGeometry
	3D scene geometry data for ray-tracing. More...

opencascade::handle< BVH_Builder< Standard_ShortReal, 3 > >	myRaytraceBVHBuilder
	Builder for triangle set. More...

RaytracingParams	myRaytraceParameters
	Compile-time ray-tracing parameters. More...

Standard_ShortReal	myRaytraceSceneRadius
	Radius of bounding sphere of the scene. More...

Standard_ShortReal	myRaytraceSceneEpsilon
	Scene epsilon to prevent self-intersections. More...

ShaderSource	myRaytraceShaderSource
	OpenGL/GLSL source of ray-tracing fragment shader. More...

ShaderSource	myPostFSAAShaderSource
	OpenGL/GLSL source of adaptive-AA fragment shader. More...

ShaderSource	myOutImageShaderSource
	OpenGL/GLSL source of RT/PT display fragment shader. More...

Handle< OpenGl_ShaderObject >	myRaytraceShader
	OpenGL/GLSL ray-tracing fragment shader. More...

Handle< OpenGl_ShaderObject >	myPostFSAAShader
	OpenGL/GLSL adaptive-AA fragment shader. More...

Handle< OpenGl_ShaderObject >	myOutImageShader
	OpenGL/GLSL ray-tracing display fragment shader. More...

Handle< OpenGl_ShaderProgram >	myRaytraceProgram
	OpenGL/GLSL ray-tracing shader program. More...

Handle< OpenGl_ShaderProgram >	myPostFSAAProgram
	OpenGL/GLSL adaptive-AA shader program. More...

Handle< OpenGl_ShaderProgram >	myOutImageProgram
	OpenGL/GLSL program for displaying texture. More...

Handle< OpenGl_TextureBufferArb >	mySceneNodeInfoTexture
	Texture buffer of data records of bottom-level BVH nodes. More...

Handle< OpenGl_TextureBufferArb >	mySceneMinPointTexture
	Texture buffer of minimum points of bottom-level BVH nodes. More...

Handle< OpenGl_TextureBufferArb >	mySceneMaxPointTexture
	Texture buffer of maximum points of bottom-level BVH nodes. More...

Handle< OpenGl_TextureBufferArb >	mySceneTransformTexture
	Texture buffer of transformations of high-level BVH nodes. More...

Handle< OpenGl_TextureBufferArb >	myGeometryVertexTexture
	Texture buffer of vertex coords. More...

Handle< OpenGl_TextureBufferArb >	myGeometryNormalTexture
	Texture buffer of vertex normals. More...

Handle< OpenGl_TextureBufferArb >	myGeometryTexCrdTexture
	Texture buffer of vertex UV coords. More...

Handle< OpenGl_TextureBufferArb >	myGeometryTriangTexture
	Texture buffer of triangle indices. More...

Handle< OpenGl_TextureBufferArb >	myRaytraceMaterialTexture
	Texture buffer of material properties. More...

Handle< OpenGl_TextureBufferArb >	myRaytraceLightSrcTexture
	Texture buffer of light source properties. More...

Handle< OpenGl_FrameBuffer >	myRaytraceFBO1 [2]
	1st framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling). More...

Handle< OpenGl_FrameBuffer >	myRaytraceFBO2 [2]
	2nd framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling). More...

Handle< OpenGl_Texture >	myRaytraceOutputTexture [2]
	Output textures (2 textures are used in stereo mode). Used if adaptive screen sampling is activated. More...

Handle< OpenGl_Texture >	myRaytraceVisualErrorTexture [2]
	Texture containing per-tile visual error estimation (2 textures are used in stereo mode). Used if adaptive screen sampling is activated. More...

Handle< OpenGl_Texture >	myRaytraceTileOffsetsTexture [2]
	Texture containing offsets of sampled screen tiles (2 textures are used in stereo mode). Used if adaptive screen sampling is activated. More...

OpenGl_VertexBuffer	myRaytraceScreenQuad
	Vertex buffer (VBO) for drawing dummy quad. More...

Standard_Integer	myUniformLocations [2][OpenGl_RT_NbVariables]
	Cached locations of frequently used uniform variables. More...

std::map< const OpenGl_Structure *, StructState >	myStructureStates
	State of OpenGL structures reflected to ray-tracing. More...

std::map< Standard_Size, OpenGl_TriangleSet * >	myArrayToTrianglesMap
	PrimitiveArray to TriangleSet map for scene partial update. More...

std::set< Standard_Integer >	myNonRaytraceStructureIDs
	Set of IDs of non-raytracable elements (to detect updates). More...

Handle< OpenGl_RaytraceFilter >	myRaytraceFilter
	Render filter to filter out all raytracable structures. More...

Standard_Boolean	myToUpdateEnvironmentMap
	Marks if environment map should be updated. More...

Standard_Size	myRaytraceLayerListState
	State of OpenGL layer list. More...

Standard_Integer	myAccumFrames
	Number of accumulated frames (for progressive rendering). More...

OpenGl_Vec3	myPreviousOrigins [3]
	Stored ray origins used for detection of camera movements. More...

math_BullardGenerator	myRNG
	Bullard RNG to produce random sequence. More...

OpenGl_TileSampler	myTileSampler
	Tool object for sampling screen tiles in PT mode. More...

OpenGl_Vec3	myEyeOrig
	Camera position used for projective mode. More...

OpenGl_Vec3	myEyeView
	Camera view direction used for projective mode. More...

OpenGl_Vec3	myEyeVert
	Camera's screen vertical direction used for projective mode. More...

OpenGl_Vec3	myEyeSide
	Camera's screen horizontal direction used for projective mode. More...

OpenGl_Vec2	myEyeSize
	Camera's screen size used for projective mode. More...

float	myPrevCameraApertureRadius
	Aperture radius of camera on previous frame used for depth-of-field (path tracing) More...

float	myPrevCameraFocalPlaneDist
	Focal distance of camera on previous frame used for depth-of-field (path tracing) More...

	DEFINE_STANDARD_RTTIEXT (OpenGl_View, Graphic3d_CView) friend class OpenGl_GraphicDriver
	Result of RT/PT shaders initialization. More...

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object. More...

Static Public Member Functions inherited from Standard_Transient
static const char *	get_type_name ()
	Returns a type descriptor about this object. More...

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class. More...

Detailed Description

Implementation of OpenGl view.

Member Typedef Documentation

◆ StateInfo

typedef std::pair<Standard_Size, Standard_Size> OpenGl_View::StateInfo

protected

main list of displayed structure, sorted by layers

Member Enumeration Documentation

◆ RaytraceInitStatus

enum OpenGl_View::RaytraceInitStatus

protected

Result of OpenGL shaders initialization.

Enumerator
OpenGl_RT_NONE
OpenGl_RT_INIT
OpenGl_RT_FAIL

◆ RaytraceUpdateMode

enum OpenGl_View::RaytraceUpdateMode

protected

Describes update mode (state).

Enumerator
OpenGl_GUM_CHECK	check geometry state
OpenGl_GUM_PREPARE	collect unchanged objects
OpenGl_GUM_REBUILD	rebuild changed and new objects

◆ ShaderImageNames

enum OpenGl_View::ShaderImageNames

protected

Defines OpenGL image samplers.

Enumerator
OpenGl_RT_OutputImageLft
OpenGl_RT_OutputImageRgh
OpenGl_RT_VisualErrorImageLft
OpenGl_RT_VisualErrorImageRgh
OpenGl_RT_TileOffsetsImageLft
OpenGl_RT_TileOffsetsImageRgh

◆ ShaderVariableIndex

enum OpenGl_View::ShaderVariableIndex

protected

Defines frequently used shader variables.

Enumerator
OpenGl_RT_aPosition
OpenGl_RT_uOriginLT
OpenGl_RT_uOriginLB
OpenGl_RT_uOriginRT
OpenGl_RT_uOriginRB
OpenGl_RT_uDirectLT
OpenGl_RT_uDirectLB
OpenGl_RT_uDirectRT
OpenGl_RT_uDirectRB
OpenGl_RT_uViewPrMat
OpenGl_RT_uUnviewMat
OpenGl_RT_uSceneRad
OpenGl_RT_uSceneEps
OpenGl_RT_uLightAmbnt
OpenGl_RT_uLightCount
OpenGl_RT_uBackColorTop
OpenGl_RT_uBackColorBot
OpenGl_RT_uShadowsEnabled
OpenGl_RT_uReflectEnabled
OpenGl_RT_uSphereMapEnabled
OpenGl_RT_uSphereMapForBack
OpenGl_RT_uTexSamplersArray
OpenGl_RT_uBlockedRngEnabled
OpenGl_RT_uWinSizeX
OpenGl_RT_uWinSizeY
OpenGl_RT_uAccumSamples
OpenGl_RT_uFrameRndSeed
OpenGl_RT_uOffsetX
OpenGl_RT_uOffsetY
OpenGl_RT_uSamples
OpenGl_RT_uRenderImage
OpenGl_RT_uOffsetImage
OpenGl_RT_uMaxRadiance
OpenGl_RT_NbVariables

Constructor & Destructor Documentation

◆ OpenGl_View()

OpenGl_View::OpenGl_View	(	const Handle< Graphic3d_StructureManager > &	theMgr,
		const Handle< OpenGl_GraphicDriver > &	theDriver,
		const Handle< OpenGl_Caps > &	theCaps,
		OpenGl_StateCounter *	theCounter
	)

Constructor.

◆ ~OpenGl_View()

virtual OpenGl_View::~OpenGl_View ( )

virtual

Default destructor.

Member Function Documentation

◆ addRaytraceGroups()

Standard_Boolean OpenGl_View::addRaytraceGroups	(	const OpenGl_Structure *	theStructure,
		const OpenGl_RaytraceMaterial &	theStructMat,
		const Handle< Geom_Transformation > &	theTrsf,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Adds OpenGL groups to ray-traced scene geometry.

◆ addRaytracePolygonArray()

Standard_Boolean OpenGl_View::addRaytracePolygonArray	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const Handle< Graphic3d_IndexBuffer > &	theIndices
	)

protected

Adds OpenGL polygon array to ray-traced scene geometry.

◆ addRaytracePrimitiveArray()

Handle< OpenGl_TriangleSet > OpenGl_View::addRaytracePrimitiveArray	(	const OpenGl_PrimitiveArray *	theArray,
		const Standard_Integer	theMatID,
		const OpenGl_Mat4 *	theTrans
	)

protected

Adds OpenGL primitive array to ray-traced scene geometry.

◆ addRaytraceQuadrangleArray()

Standard_Boolean OpenGl_View::addRaytraceQuadrangleArray	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const Handle< Graphic3d_IndexBuffer > &	theIndices
	)

protected

Adds OpenGL quadrangle array to ray-traced scene geometry.

◆ addRaytraceQuadrangleStripArray()

Standard_Boolean OpenGl_View::addRaytraceQuadrangleStripArray	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const Handle< Graphic3d_IndexBuffer > &	theIndices
	)

protected

Adds OpenGL quadrangle strip array to ray-traced scene geometry.

◆ addRaytraceStructure()

Standard_Boolean OpenGl_View::addRaytraceStructure	(	const OpenGl_Structure *	theStructure,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Adds OpenGL structure to ray-traced scene geometry.

◆ addRaytraceTriangleArray()

Standard_Boolean OpenGl_View::addRaytraceTriangleArray	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const Handle< Graphic3d_IndexBuffer > &	theIndices
	)

protected

Adds OpenGL triangle array to ray-traced scene geometry.

◆ addRaytraceTriangleFanArray()

Standard_Boolean OpenGl_View::addRaytraceTriangleFanArray	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const Handle< Graphic3d_IndexBuffer > &	theIndices
	)

protected

Adds OpenGL triangle fan array to ray-traced scene geometry.

◆ addRaytraceTriangleStripArray()

Standard_Boolean OpenGl_View::addRaytraceTriangleStripArray	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const Handle< Graphic3d_IndexBuffer > &	theIndices
	)

protected

Adds OpenGL triangle strip array to ray-traced scene geometry.

◆ addRaytraceVertexIndices()

Standard_Boolean OpenGl_View::addRaytraceVertexIndices	(	OpenGl_TriangleSet &	theSet,
		const Standard_Integer	theMatID,
		const Standard_Integer	theCount,
		const Standard_Integer	theOffset,
		const OpenGl_PrimitiveArray &	theArray
	)

protected

Adds vertex indices from OpenGL primitive array to ray-traced scene geometry.

◆ AddZLayer()

virtual void OpenGl_View::AddZLayer ( const Graphic3d_ZLayerId theLayerId )

overridevirtual

Insert a new top-level z layer with the given ID.

Implements Graphic3d_CView.

◆ BackfacingModel()

virtual Graphic3d_TypeOfBackfacingModel OpenGl_View::BackfacingModel ( ) const

inlineoverridevirtual

Return backfacing model used for the view.

Implements Graphic3d_CView.

◆ Background()

virtual Aspect_Background OpenGl_View::Background ( ) const

overridevirtual

Returns background fill color.

Implements Graphic3d_CView.

◆ BackgroundColor()

const Quantity_ColorRGBA& OpenGl_View::BackgroundColor ( ) const

inline

Returns background color.

◆ BackgroundImage()

virtual TCollection_AsciiString OpenGl_View::BackgroundImage ( )

inlineoverridevirtual

Returns background image texture file path.

Implements Graphic3d_CView.

◆ BackgroundImageStyle()

virtual Aspect_FillMethod OpenGl_View::BackgroundImageStyle ( ) const

overridevirtual

Returns background image fill style.

Implements Graphic3d_CView.

◆ bindDefaultFbo()

void OpenGl_View::bindDefaultFbo ( OpenGl_FrameBuffer * theCustomFbo = NULL )

protected

Setup default FBO.

◆ bindRaytraceTextures()

void OpenGl_View::bindRaytraceTextures ( const Handle< OpenGl_Context > & theGlContext )

protected

Binds ray-trace textures to corresponding texture units.

◆ blitBuffers()

bool OpenGl_View::blitBuffers	(	OpenGl_FrameBuffer *	theReadFbo,
		OpenGl_FrameBuffer *	theDrawFbo,
		const Standard_Boolean	theToFlip = `Standard_False`
	)

protected

Blit image from/to specified buffers.

◆ BufferDump()

virtual Standard_Boolean OpenGl_View::BufferDump	(	Image_PixMap &	theImage,
		const Graphic3d_BufferType &	theBufferType
	)

overridevirtual

Dump active rendering buffer into specified memory buffer. In Ray-Tracing allow to get a raw HDR buffer using Graphic3d_BT_RGB_RayTraceHdrLeft buffer type, only Left view will be dumped ignoring stereoscopic parameter.

Implements Graphic3d_CView.

◆ BVHTreeSelector()

const OpenGl_BVHTreeSelector& OpenGl_View::BVHTreeSelector ( ) const

inline

Returns selector for BVH tree, providing a possibility to store information about current view volume and to detect which objects are overlapping it.

◆ Camera()

virtual const Handle< Graphic3d_Camera >& OpenGl_View::Camera ( ) const

inlineoverridevirtual

Returns camera object of the view.

Implements Graphic3d_CView.

◆ ChangeGraduatedTrihedron()

OpenGl_GraduatedTrihedron& OpenGl_View::ChangeGraduatedTrihedron ( )

inline

Change graduated trihedron.

◆ ClipPlanes()

virtual const Handle< Graphic3d_SequenceOfHClipPlane >& OpenGl_View::ClipPlanes ( ) const

inlineoverridevirtual

Returns list of clip planes set for the view.

Implements Graphic3d_CView.

◆ convertMaterial()

OpenGl_RaytraceMaterial OpenGl_View::convertMaterial	(	const OpenGl_AspectFace *	theAspect,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Creates ray-tracing material properties.

◆ DEFINE_STANDARD_RTTIEXT()

OpenGl_View::DEFINE_STANDARD_RTTIEXT	(	OpenGl_View	,
		Graphic3d_CView
	)

Result of RT/PT shaders initialization.

◆ DiagnosticInformation()

virtual void OpenGl_View::DiagnosticInformation	(	TColStd_IndexedDataMapOfStringString &	theDict,
		Graphic3d_DiagnosticInfo	theFlags
	)		const

overridevirtual

Fill in the dictionary with diagnostic info. Should be called within rendering thread.

This API should be used only for user output or for creating automated reports. The format of returned information (e.g. key-value layout) is NOT part of this API and can be changed at any time. Thus application should not parse returned information to weed out specific parameters.

Implements Graphic3d_CView.

◆ drawBackground()

virtual void OpenGl_View::drawBackground ( const Handle< OpenGl_Workspace > & theWorkspace )

protectedvirtual

Draw background (gradient / image)

◆ Export()

virtual Standard_Boolean OpenGl_View::Export	(	const Standard_CString	theFileName,
		const Graphic3d_ExportFormat	theFormat,
		const Graphic3d_SortType	theSortType = `Graphic3d_ST_BSP_Tree`
	)

overridevirtual

Export scene into the one of the Vector graphics formats (SVG, PS, PDF...). In contrast to Bitmaps, Vector graphics is scalable (so you may got quality benefits on printing to laser printer). Notice however that results may differ a lot and do not contain some elements.

Implements Graphic3d_CView.

◆ FBO()

virtual Handle< Standard_Transient > OpenGl_View::FBO ( ) const

overridevirtual

Returns pointer to an assigned framebuffer object.

Implements Graphic3d_CView.

◆ FBOChangeViewport()

virtual void OpenGl_View::FBOChangeViewport	(	const Handle< Standard_Transient > &	theFbo,
		const Standard_Integer	theWidth,
		const Standard_Integer	theHeight
	)

overridevirtual

Change offscreen FBO viewport.

Implements Graphic3d_CView.

◆ FBOCreate()

virtual Handle< Standard_Transient > OpenGl_View::FBOCreate	(	const Standard_Integer	theWidth,
		const Standard_Integer	theHeight
	)

overridevirtual

Generate offscreen FBO in the graphic library. If not supported on hardware returns NULL.

Implements Graphic3d_CView.

◆ FBOGetDimensions()

virtual void OpenGl_View::FBOGetDimensions	(	const Handle< Standard_Transient > &	theFbo,
		Standard_Integer &	theWidth,
		Standard_Integer &	theHeight,
		Standard_Integer &	theWidthMax,
		Standard_Integer &	theHeightMax
	)

overridevirtual

Read offscreen FBO configuration.

Implements Graphic3d_CView.

◆ FBORelease()

virtual void OpenGl_View::FBORelease ( Handle< Standard_Transient > & theFbo )

overridevirtual

Remove offscreen FBO from the graphic library.

Implements Graphic3d_CView.

◆ generateShaderPrefix()

TCollection_AsciiString OpenGl_View::generateShaderPrefix ( const Handle< OpenGl_Context > & theGlContext ) const

protected

Generates shader prefix based on current ray-tracing options.

◆ GetGraduatedTrihedron()

const Graphic3d_GraduatedTrihedron& OpenGl_View::GetGraduatedTrihedron ( )

inlineoverridevirtual

Returns data of a graduated trihedron.

Implements Graphic3d_CView.

◆ GlTextureEnv()

const Handle< OpenGl_TextureSet >& OpenGl_View::GlTextureEnv ( ) const

inline

Returns OpenGL environment map.

◆ GlWindow()

const Handle< OpenGl_Window > OpenGl_View::GlWindow ( ) const

inline

Returns OpenGL window implementation.

◆ GradientBackground()

virtual Aspect_GradientBackground OpenGl_View::GradientBackground ( ) const

overridevirtual

Returns gradient background fill colors.

Implements Graphic3d_CView.

◆ GraduatedTrihedronDisplay()

virtual void OpenGl_View::GraduatedTrihedronDisplay ( const Graphic3d_GraduatedTrihedron & theTrihedronData )

overridevirtual

Displays Graduated Trihedron.

Implements Graphic3d_CView.

◆ GraduatedTrihedronErase()

virtual void OpenGl_View::GraduatedTrihedronErase ( )

overridevirtual

Erases Graduated Trihedron.

Implements Graphic3d_CView.

◆ GraduatedTrihedronMinMaxValues()

virtual void OpenGl_View::GraduatedTrihedronMinMaxValues	(	const Graphic3d_Vec3	theMin,
		const Graphic3d_Vec3	theMax
	)

overridevirtual

Sets minimum and maximum points of scene bounding box for Graduated Trihedron stored in graphic view object.

Parameters

theMin	[in] the minimum point of scene.
theMax	[in] the maximum point of scene.

Implements Graphic3d_CView.

◆ HasImmediateStructures()

bool OpenGl_View::HasImmediateStructures ( ) const

inline

Returns true if there are immediate structures to display.

◆ initProgram()

Handle< OpenGl_ShaderProgram > OpenGl_View::initProgram	(	const Handle< OpenGl_Context > &	theGlContext,
		const Handle< OpenGl_ShaderObject > &	theVertShader,
		const Handle< OpenGl_ShaderObject > &	theFragShader
	)

protected

Creates shader program from the given vertex and fragment shaders.

◆ initRaytraceResources()

Standard_Boolean OpenGl_View::initRaytraceResources ( const Handle< OpenGl_Context > & theGlContext )

protected

Initializes OpenGL/GLSL shader programs.

◆ initShader()

Handle< OpenGl_ShaderObject > OpenGl_View::initShader	(	const GLenum	theType,
		const ShaderSource &	theSource,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Loads and compiles shader object from specified source.

◆ initTextureEnv()

void OpenGl_View::initTextureEnv ( const Handle< OpenGl_Context > & theContext )

protected

Initializes OpenGl resource for environment texture.

◆ Invalidate()

virtual void OpenGl_View::Invalidate ( )

overridevirtual

Marks BVH tree for given priority list as dirty and marks primitive set for rebuild.

Implements Graphic3d_CView.

◆ InvalidateBVHData()

virtual void OpenGl_View::InvalidateBVHData ( const Graphic3d_ZLayerId theLayerId )

overridevirtual

Marks BVH tree and the set of BVH primitives of correspondent priority list with id theLayerId as outdated.

Implements Graphic3d_CView.

◆ InvalidateZLayerBoundingBox()

virtual void OpenGl_View::InvalidateZLayerBoundingBox ( const Graphic3d_ZLayerId theLayerId ) const

overridevirtual

Returns the bounding box of all structures displayed in the Z layer. Never fails. If Z layer does not exist nothing happens.

Implements Graphic3d_CView.

◆ IsCullingEnabled()

virtual Standard_Boolean OpenGl_View::IsCullingEnabled ( ) const

inlineoverridevirtual

Returns the state of frustum culling optimization.

Implements Graphic3d_CView.

◆ IsDefined()

virtual Standard_Boolean OpenGl_View::IsDefined ( ) const

inlineoverridevirtual

Returns True if the window associated to the view is defined.

Implements Graphic3d_CView.

◆ IsInvalidated()

virtual Standard_Boolean OpenGl_View::IsInvalidated ( )

inlineoverridevirtual

Return true if view content cache has been invalidated.

Implements Graphic3d_CView.

◆ LayerList()

const OpenGl_LayerList& OpenGl_View::LayerList ( ) const

inline

Returns list of OpenGL Z-layers.

◆ Lights()

virtual const Handle< Graphic3d_LightSet >& OpenGl_View::Lights ( ) const

inlineoverridevirtual

Returns list of lights of the view.

Implements Graphic3d_CView.

◆ LocalOrigin()

const gp_XYZ& OpenGl_View::LocalOrigin ( ) const

inline

Returns local camera origin currently set for rendering, might be modified during rendering.

◆ raytrace()

Standard_Boolean OpenGl_View::raytrace	(	const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Redraws the window using OpenGL/GLSL ray-tracing or path tracing.

◆ Redraw()

virtual void OpenGl_View::Redraw ( )

overridevirtual

Redraw content of the view.

Implements Graphic3d_CView.

◆ redraw()

virtual void OpenGl_View::redraw	(	const Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		OpenGl_FrameBuffer *	theOitAccumFbo
	)

protectedvirtual

Redraws view for the given monographic camera projection, or left/right eye.

◆ RedrawImmediate()

virtual void OpenGl_View::RedrawImmediate ( )

overridevirtual

Redraw immediate content of the view.

Implements Graphic3d_CView.

◆ redrawImmediate()

virtual bool OpenGl_View::redrawImmediate	(	const Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadFbo,
		OpenGl_FrameBuffer *	theDrawFbo,
		OpenGl_FrameBuffer *	theOitAccumFbo,
		const Standard_Boolean	theIsPartialUpdate = `Standard_False`
	)

protectedvirtual

Redraws view for the given monographic camera projection, or left/right eye.

Method will blit snapshot containing main scene (myMainSceneFbos or BackBuffer) into presentation buffer (myMainSceneFbos -> offscreen FBO or myMainSceneFbos -> BackBuffer or BackBuffer -> FrontBuffer), and redraw immediate structures on top.

When scene caching is disabled (myTransientDrawToFront, no double buffer in window, etc.), the first step (blitting) will be skipped.

Returns: false if immediate structures has been rendered directly into FrontBuffer and Buffer Swap should not be called.

◆ ReleaseGlResources()

void OpenGl_View::ReleaseGlResources ( const Handle< OpenGl_Context > & theCtx )

◆ releaseRaytraceResources()

void OpenGl_View::releaseRaytraceResources	(	const Handle< OpenGl_Context > &	theGlContext,
		const Standard_Boolean	theToRebuild = `Standard_False`
	)

protected

Releases OpenGL/GLSL shader programs.

◆ Remove()

virtual void OpenGl_View::Remove ( )

overridevirtual

Deletes and erases the view.

Reimplemented from Graphic3d_CView.

◆ RemoveZLayer()

virtual void OpenGl_View::RemoveZLayer ( const Graphic3d_ZLayerId theLayerId )

overridevirtual

Remove a z layer with the given ID.

Implements Graphic3d_CView.

◆ render()

virtual void OpenGl_View::render	(	Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		OpenGl_FrameBuffer *	theOitAccumFbo,
		const Standard_Boolean	theToDrawImmediate
	)

protectedvirtual

Renders the graphical contents of the view into the preprepared window or framebuffer.

Parameters

theProjection	[in] the projection that should be used for rendering.
theReadDrawFbo	[in] the framebuffer for rendering graphics.
theOitAccumFbo	[in] the framebuffer for accumulating color and coverage for OIT process.
theToDrawImmediate	[in] the flag indicates whether the rendering performs in immediate mode.

◆ renderFrameStats()

void OpenGl_View::renderFrameStats ( )

protected

Renders frame statistics.

◆ renderScene()

virtual void OpenGl_View::renderScene	(	Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		OpenGl_FrameBuffer *	theOitAccumFbo,
		const Standard_Boolean	theToDrawImmediate
	)

protectedvirtual

Renders the graphical scene.

Parameters

theProjection	[in] the projection that is used for rendering.
theReadDrawFbo	[in] the framebuffer for rendering graphics.
theOitAccumFbo	[in] the framebuffer for accumulating color and coverage for OIT process.
theToDrawImmediate	[in] the flag indicates whether the rendering performs in immediate mode.

◆ renderStructs()

virtual void OpenGl_View::renderStructs	(	Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		OpenGl_FrameBuffer *	theOitAccumFbo,
		const Standard_Boolean	theToDrawImmediate
	)

protectedvirtual

Render set of structures presented in the view.

Parameters

theProjection	[in] the projection that is used for rendering.
theReadDrawFbo	[in] the framebuffer for rendering graphics.
theOitAccumFbo	[in] the framebuffer for accumulating color and coverage for OIT process.
theToDrawImmediate	[in] the flag indicates whether the rendering performs in immediate mode.

◆ renderTrihedron()

void OpenGl_View::renderTrihedron ( const Handle< OpenGl_Workspace > & theWorkspace )

protected

Renders trihedron.

◆ Resized()

virtual void OpenGl_View::Resized ( )

overridevirtual

Handle changing size of the rendering window.

Implements Graphic3d_CView.

◆ runPathtrace()

Standard_Boolean OpenGl_View::runPathtrace	(	const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Runs path tracing (global illumination) kernel.

◆ runRaytrace()

Standard_Boolean OpenGl_View::runRaytrace	(	const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Runs classical (Whitted-style) ray-tracing kernel.

◆ runRaytraceShaders()

Standard_Boolean OpenGl_View::runRaytraceShaders	(	const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		Graphic3d_Camera::Projection	theProjection,
		OpenGl_FrameBuffer *	theReadDrawFbo,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Runs ray-tracing shader programs.

◆ safeFailBack()

Standard_Boolean OpenGl_View::safeFailBack	(	const TCollection_ExtendedString &	theMessage,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Performs safe exit when shaders initialization fails.

◆ SetBackfacingModel()

virtual void OpenGl_View::SetBackfacingModel ( const Graphic3d_TypeOfBackfacingModel theModel )

inlineoverridevirtual

Sets backfacing model for the view.

Implements Graphic3d_CView.

◆ SetBackground()

virtual void OpenGl_View::SetBackground ( const Aspect_Background & theBackground )

overridevirtual

Sets background fill color.

Implements Graphic3d_CView.

◆ SetBackgroundGradient()

void OpenGl_View::SetBackgroundGradient	(	const Quantity_Color &	AColor1,
		const Quantity_Color &	AColor2,
		const Aspect_GradientFillMethod	AType
	)

◆ SetBackgroundGradientType()

void OpenGl_View::SetBackgroundGradientType ( const Aspect_GradientFillMethod AType )

◆ SetBackgroundImage()

virtual void OpenGl_View::SetBackgroundImage ( const TCollection_AsciiString & theFilePath )

overridevirtual

Sets background image texture file path.

Implements Graphic3d_CView.

◆ SetBackgroundImageStyle()

virtual void OpenGl_View::SetBackgroundImageStyle ( const Aspect_FillMethod theFillStyle )

overridevirtual

Sets background image fill style.

Implements Graphic3d_CView.

◆ SetBackgroundTextureStyle()

void OpenGl_View::SetBackgroundTextureStyle ( const Aspect_FillMethod FillStyle )

◆ SetCamera()

virtual void OpenGl_View::SetCamera ( const Handle< Graphic3d_Camera > & theCamera )

overridevirtual

Sets camera used by the view.

Implements Graphic3d_CView.

◆ SetClipPlanes()

virtual void OpenGl_View::SetClipPlanes ( const Handle< Graphic3d_SequenceOfHClipPlane > & thePlanes )

inlineoverridevirtual

Sets list of clip planes for the view.

Implements Graphic3d_CView.

◆ SetCullingEnabled()

virtual void OpenGl_View::SetCullingEnabled ( const Standard_Boolean theIsEnabled )

inlineoverridevirtual

Enables or disables frustum culling optimization.

Implements Graphic3d_CView.

◆ SetFBO()

virtual void OpenGl_View::SetFBO ( const Handle< Standard_Transient > & theFbo )

overridevirtual

Sets framebuffer object for offscreen rendering.

Implements Graphic3d_CView.

◆ SetGradientBackground()

virtual void OpenGl_View::SetGradientBackground ( const Aspect_GradientBackground & theBackground )

overridevirtual

Sets gradient background fill colors.

Implements Graphic3d_CView.

◆ SetImmediateModeDrawToFront()

Standard_Boolean OpenGl_View::SetImmediateModeDrawToFront ( const Standard_Boolean theDrawToFrontBuffer )

overridevirtual

Parameters

theDrawToFrontBuffer

Advanced option to modify rendering mode:

TRUE. Drawing immediate mode structures directly to the front buffer over the scene image. Fast, so preferred for interactive work (used by default). However these extra drawings will be missed in image dump since it is performed from back buffer. Notice that since no pre-buffering used the V-Sync will be ignored and rendering could be seen in run-time (in case of slow hardware) and/or tearing may appear. So this is strongly recommended to draw only simple (fast) structures.
FALSE. Drawing immediate mode structures to the back buffer. The complete scene is redrawn first, so this mode is slower if scene contains complex data and/or V-Sync is turned on. But it works in any case and is especially useful for view dump because the dump image is read from the back buffer.

Returns: previous mode.

Implements Graphic3d_CView.

◆ SetLights()

virtual void OpenGl_View::SetLights ( const Handle< Graphic3d_LightSet > & theLights )

inlineoverridevirtual

Sets list of lights for the view.

Implements Graphic3d_CView.

◆ SetLocalOrigin()

void OpenGl_View::SetLocalOrigin ( const gp_XYZ & theOrigin )

Setup local camera origin currently set for rendering.

◆ SetTextureEnv() [1/2]

virtual void OpenGl_View::SetTextureEnv ( const Handle< Graphic3d_TextureEnv > & theTextureEnv )

overridevirtual

Sets environment texture for the view.

Implements Graphic3d_CView.

◆ SetTextureEnv() [2/2]

void OpenGl_View::SetTextureEnv	(	const Handle< OpenGl_Context > &	theCtx,
		const Handle< Graphic3d_TextureEnv > &	theTexture
	)

◆ setUniformState()

Standard_Boolean OpenGl_View::setUniformState	(	const Standard_Integer	theProgramId,
		const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		Graphic3d_Camera::Projection	theProjection,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Sets uniform state for the given ray-tracing shader program.

◆ SetWindow()

virtual void OpenGl_View::SetWindow	(	const Handle< Aspect_Window > &	theWindow,
		const Aspect_RenderingContext	theContext
	)

overridevirtual

Creates and maps rendering window to the view.

Parameters

theWindow	[in] the window.
theContext	[in] the rendering context. If NULL the context will be created internally.

Implements Graphic3d_CView.

◆ SetZLayerSettings()

virtual void OpenGl_View::SetZLayerSettings	(	const Graphic3d_ZLayerId	theLayerId,
		const Graphic3d_ZLayerSettings &	theSettings
	)

overridevirtual

Sets the settings for a single Z layer of specified view.

Implements Graphic3d_CView.

◆ TextureEnv()

virtual Handle< Graphic3d_TextureEnv > OpenGl_View::TextureEnv ( ) const

inlineoverridevirtual

Returns environment texture set for the view.

Implements Graphic3d_CView.

◆ toUpdateStructure()

Standard_Boolean OpenGl_View::toUpdateStructure ( const OpenGl_Structure * theStructure )

protected

Checks to see if the OpenGL structure is modified.

◆ unbindRaytraceTextures()

void OpenGl_View::unbindRaytraceTextures ( const Handle< OpenGl_Context > & theGlContext )

protected

Unbinds ray-trace textures from corresponding texture unit.

◆ updateCamera()

void OpenGl_View::updateCamera	(	const OpenGl_Mat4 &	theOrientation,
		const OpenGl_Mat4 &	theViewMapping,
		OpenGl_Vec3 *	theOrigins,
		OpenGl_Vec3 *	theDirects,
		OpenGl_Mat4 &	theView,
		OpenGl_Mat4 &	theUnView
	)

protected

Generates viewing rays for corners of screen quad. (ray tracing; path tracing for orthographic camera)

◆ updatePerspCameraPT()

void OpenGl_View::updatePerspCameraPT	(	const OpenGl_Mat4 &	theOrientation,
		const OpenGl_Mat4 &	theViewMapping,
		Graphic3d_Camera::Projection	theProjection,
		OpenGl_Mat4 &	theViewPr,
		OpenGl_Mat4 &	theUnview,
		const int	theWinSizeX,
		const int	theWinSizeY
	)

protected

Generate viewing rays (path tracing, perspective camera).

◆ updateRaytraceBuffers()

Standard_Boolean OpenGl_View::updateRaytraceBuffers	(	const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Updates auxiliary OpenGL frame buffers.

◆ updateRaytraceGeometry()

Standard_Boolean OpenGl_View::updateRaytraceGeometry	(	const RaytraceUpdateMode	theMode,
		const Standard_Integer	theViewId,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Updates 3D scene geometry for ray-tracing.

◆ updateRaytraceLightSources()

Standard_Boolean OpenGl_View::updateRaytraceLightSources	(	const OpenGl_Mat4 &	theInvModelView,
		const Handle< OpenGl_Context > &	theGlContext
	)

protected

Updates 3D scene light sources for ray-tracing.

◆ uploadRaytraceData()

Standard_Boolean OpenGl_View::uploadRaytraceData ( const Handle< OpenGl_Context > & theGlContext )

protected

Uploads ray-trace data to the GPU.

◆ Window()

virtual Handle< Aspect_Window > OpenGl_View::Window ( ) const

inlineoverridevirtual

Returns window associated with the view.

Implements Graphic3d_CView.

◆ ZLayerBoundingBox()

virtual Bnd_Box OpenGl_View::ZLayerBoundingBox	(	const Graphic3d_ZLayerId	theLayerId,
		const Handle< Graphic3d_Camera > &	theCamera,
		const Standard_Integer	theWindowWidth,
		const Standard_Integer	theWindowHeight,
		const Standard_Boolean	theToIncludeAuxiliary
	)		const

overridevirtual

Returns the bounding box of all structures displayed in the Z layer. If Z layer does not exist the empty box is returned.

Parameters

theLayerId	layer identifier
theCamera	camera definition
theWindowWidth	viewport width (for applying transformation-persistence)
theWindowHeight	viewport height (for applying transformation-persistence)
theToIncludeAuxiliary	consider also auxiliary presentations (with infinite flag or with trihedron transformation persistence)

Returns: computed bounding box

Implements Graphic3d_CView.

◆ ZLayerMax()

virtual Standard_Integer OpenGl_View::ZLayerMax ( ) const

overridevirtual

Returns the maximum Z layer ID. First layer ID is Graphic3d_ZLayerId_Default, last ID is ZLayerMax().

Implements Graphic3d_CView.

Field Documentation

◆ myAccumFrames

Standard_Integer OpenGl_View::myAccumFrames

protected

Number of accumulated frames (for progressive rendering).

◆ myArrayToTrianglesMap

std::map<Standard_Size, OpenGl_TriangleSet*> OpenGl_View::myArrayToTrianglesMap

protected

PrimitiveArray to TriangleSet map for scene partial update.

◆ myBackBufferRestored

Standard_Boolean OpenGl_View::myBackBufferRestored

protected

Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).

sized format for color attachments

◆ myBackfacing

Graphic3d_TypeOfBackfacingModel OpenGl_View::myBackfacing

protected

main list of displayed structure, sorted by layers

◆ myBackgroundImagePath

TCollection_AsciiString OpenGl_View::myBackgroundImagePath

protected

main list of displayed structure, sorted by layers

◆ myBgColor

Quantity_ColorRGBA OpenGl_View::myBgColor

protected

main list of displayed structure, sorted by layers

◆ myBgGradientArray

OpenGl_BackgroundArray* OpenGl_View::myBgGradientArray

protected

Primitive array for gradient background.

◆ myBgTextureArray

OpenGl_BackgroundArray* OpenGl_View::myBgTextureArray

protected

Primitive array for texture background.

◆ myBVHSelector

OpenGl_BVHTreeSelector OpenGl_View::myBVHSelector

protected

Is needed for selection of overlapping objects and storage of the current view volume.

◆ myCamera

Handle< Graphic3d_Camera > OpenGl_View::myCamera

protected

main list of displayed structure, sorted by layers

◆ myCaps

Handle< OpenGl_Caps > OpenGl_View::myCaps

protected

main list of displayed structure, sorted by layers

◆ myClipPlanes

Handle< Graphic3d_SequenceOfHClipPlane > OpenGl_View::myClipPlanes

protected

main list of displayed structure, sorted by layers

◆ myCulling

Standard_Boolean OpenGl_View::myCulling

protected

main list of displayed structure, sorted by layers

◆ myCurrLightSourceState

Standard_Size OpenGl_View::myCurrLightSourceState

protected

main list of displayed structure, sorted by layers

◆ myDriver

OpenGl_GraphicDriver* OpenGl_View::myDriver

protected

main list of displayed structure, sorted by layers

◆ myEyeOrig

OpenGl_Vec3 OpenGl_View::myEyeOrig

protected

Camera position used for projective mode.

◆ myEyeSide

OpenGl_Vec3 OpenGl_View::myEyeSide

protected

Camera's screen horizontal direction used for projective mode.

◆ myEyeSize

OpenGl_Vec2 OpenGl_View::myEyeSize

protected

Camera's screen size used for projective mode.

◆ myEyeVert

OpenGl_Vec3 OpenGl_View::myEyeVert

protected

Camera's screen vertical direction used for projective mode.

◆ myEyeView

OpenGl_Vec3 OpenGl_View::myEyeView

protected

Camera view direction used for projective mode.

◆ myFBO

Handle< OpenGl_FrameBuffer > OpenGl_View::myFBO

protected

main list of displayed structure, sorted by layers

◆ myFboColorFormat

GLint OpenGl_View::myFboColorFormat

protected

Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).

sized format for color attachments

◆ myFboDepthFormat

GLint OpenGl_View::myFboDepthFormat

protected

sized format for depth-stencil attachments

◆ myFboOitColorConfig

OpenGl_ColorFormats OpenGl_View::myFboOitColorConfig

protected

selected color format configuration for OIT color attachments

◆ myFrameCounter

unsigned int OpenGl_View::myFrameCounter

protected

redraw counter, for debugging

◆ myFrameStatsPrs

OpenGl_FrameStatsPrs OpenGl_View::myFrameStatsPrs

protected

main list of displayed structure, sorted by layers

◆ myFullScreenQuad

OpenGl_VertexBuffer OpenGl_View::myFullScreenQuad

protected

Vertices for full-screen quad rendering.

◆ myFullScreenQuadFlip

OpenGl_VertexBuffer OpenGl_View::myFullScreenQuadFlip

protected

Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).

sized format for color attachments

◆ myGeometryNormalTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::myGeometryNormalTexture

protected

Texture buffer of vertex normals.

◆ myGeometryTexCrdTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::myGeometryTexCrdTexture

protected

Texture buffer of vertex UV coords.

◆ myGeometryTriangTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::myGeometryTriangTexture

protected

Texture buffer of triangle indices.

◆ myGeometryVertexTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::myGeometryVertexTexture

protected

Texture buffer of vertex coords.

◆ myGraduatedTrihedron

OpenGl_GraduatedTrihedron OpenGl_View::myGraduatedTrihedron

protected

main list of displayed structure, sorted by layers

◆ myGTrihedronData

Graphic3d_GraduatedTrihedron OpenGl_View::myGTrihedronData

protected

main list of displayed structure, sorted by layers

◆ myHasFboBlit

Standard_Boolean OpenGl_View::myHasFboBlit

protected

disable FBOs on failure

◆ myImmediateSceneFbos

Handle< OpenGl_FrameBuffer > OpenGl_View::myImmediateSceneFbos[2]

protected

Additional buffers for immediate layer in stereo mode.

◆ myImmediateSceneFbosOit

Handle< OpenGl_FrameBuffer > OpenGl_View::myImmediateSceneFbosOit[2]

protected

Additional buffers for transparency draw of immediate layer.

◆ myIsImmediateDrawn

Standard_Boolean OpenGl_View::myIsImmediateDrawn

protected

flag indicates that immediate mode buffer contains some data

◆ myIsRaytraceDataValid

Standard_Boolean OpenGl_View::myIsRaytraceDataValid

protected

Is ray-tracing geometry data valid?

◆ myIsRaytraceWarnTextures

Standard_Boolean OpenGl_View::myIsRaytraceWarnTextures

protected

True if warning about missing extension GL_ARB_bindless_texture has been displayed.

◆ myLastLightSourceState

StateInfo OpenGl_View::myLastLightSourceState

protected

main list of displayed structure, sorted by layers

◆ myLastOrientationState

StateInfo OpenGl_View::myLastOrientationState

protected

main list of displayed structure, sorted by layers

◆ myLastViewMappingState

StateInfo OpenGl_View::myLastViewMappingState

protected

main list of displayed structure, sorted by layers

◆ myLights

Handle< Graphic3d_LightSet > OpenGl_View::myLights

protected

main list of displayed structure, sorted by layers

◆ myLightsRevision

Standard_Size OpenGl_View::myLightsRevision

protected

main list of displayed structure, sorted by layers

◆ myLocalOrigin

gp_XYZ OpenGl_View::myLocalOrigin

protected

main list of displayed structure, sorted by layers

◆ myMainSceneFbos

Handle< OpenGl_FrameBuffer > OpenGl_View::myMainSceneFbos[2]

protected

Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).

sized format for color attachments

◆ myMainSceneFbosOit

Handle< OpenGl_FrameBuffer > OpenGl_View::myMainSceneFbosOit[2]

protected

Additional buffers for transparent draw of main layer.

◆ myNonRaytraceStructureIDs

std::set<Standard_Integer> OpenGl_View::myNonRaytraceStructureIDs

protected

Set of IDs of non-raytracable elements (to detect updates).

◆ myNoShadingLight

Handle< Graphic3d_LightSet > OpenGl_View::myNoShadingLight

protected

main list of displayed structure, sorted by layers

◆ myOpenGlFBO

Handle< OpenGl_FrameBuffer > OpenGl_View::myOpenGlFBO

protected

Framebuffers for OpenGL output.

◆ myOpenGlFBO2

Handle< OpenGl_FrameBuffer > OpenGl_View::myOpenGlFBO2

protected

main list of displayed structure, sorted by layers

◆ myOutImageProgram

Handle< OpenGl_ShaderProgram > OpenGl_View::myOutImageProgram

protected

OpenGL/GLSL program for displaying texture.

◆ myOutImageShader

Handle< OpenGl_ShaderObject > OpenGl_View::myOutImageShader

protected

OpenGL/GLSL ray-tracing display fragment shader.

◆ myOutImageShaderSource

ShaderSource OpenGl_View::myOutImageShaderSource

protected

OpenGL/GLSL source of RT/PT display fragment shader.

◆ myPostFSAAProgram

Handle< OpenGl_ShaderProgram > OpenGl_View::myPostFSAAProgram

protected

OpenGL/GLSL adaptive-AA shader program.

◆ myPostFSAAShader

Handle< OpenGl_ShaderObject > OpenGl_View::myPostFSAAShader

protected

OpenGL/GLSL adaptive-AA fragment shader.

◆ myPostFSAAShaderSource

ShaderSource OpenGl_View::myPostFSAAShaderSource

protected

OpenGL/GLSL source of adaptive-AA fragment shader.

◆ myPrevCameraApertureRadius

float OpenGl_View::myPrevCameraApertureRadius

protected

Aperture radius of camera on previous frame used for depth-of-field (path tracing)

◆ myPrevCameraFocalPlaneDist

float OpenGl_View::myPrevCameraFocalPlaneDist

protected

Focal distance of camera on previous frame used for depth-of-field (path tracing)

◆ myPreviousOrigins

OpenGl_Vec3 OpenGl_View::myPreviousOrigins[3]

protected

Stored ray origins used for detection of camera movements.

◆ myRaytraceBVHBuilder

opencascade::handle<BVH_Builder<Standard_ShortReal, 3> > OpenGl_View::myRaytraceBVHBuilder

protected

Builder for triangle set.

◆ myRaytraceFBO1

Handle< OpenGl_FrameBuffer > OpenGl_View::myRaytraceFBO1[2]

protected

1st framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling).

◆ myRaytraceFBO2

Handle< OpenGl_FrameBuffer > OpenGl_View::myRaytraceFBO2[2]

protected

2nd framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling).

◆ myRaytraceFilter

Handle< OpenGl_RaytraceFilter > OpenGl_View::myRaytraceFilter

protected

Render filter to filter out all raytracable structures.

◆ myRaytraceGeometry

OpenGl_RaytraceGeometry OpenGl_View::myRaytraceGeometry

protected

3D scene geometry data for ray-tracing.

◆ myRaytraceInitStatus

RaytraceInitStatus OpenGl_View::myRaytraceInitStatus

protected

Result of RT/PT shaders initialization.

◆ myRaytraceLayerListState

Standard_Size OpenGl_View::myRaytraceLayerListState

protected

State of OpenGL layer list.

◆ myRaytraceLightSrcTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::myRaytraceLightSrcTexture

protected

Texture buffer of light source properties.

◆ myRaytraceMaterialTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::myRaytraceMaterialTexture

protected

Texture buffer of material properties.

◆ myRaytraceOutputTexture

Handle< OpenGl_Texture > OpenGl_View::myRaytraceOutputTexture[2]

protected

Output textures (2 textures are used in stereo mode). Used if adaptive screen sampling is activated.

◆ myRaytraceParameters

RaytracingParams OpenGl_View::myRaytraceParameters

protected

Compile-time ray-tracing parameters.

◆ myRaytraceProgram

Handle< OpenGl_ShaderProgram > OpenGl_View::myRaytraceProgram

protected

OpenGL/GLSL ray-tracing shader program.

◆ myRaytraceSceneEpsilon

Standard_ShortReal OpenGl_View::myRaytraceSceneEpsilon

protected

Scene epsilon to prevent self-intersections.

◆ myRaytraceSceneRadius

Standard_ShortReal OpenGl_View::myRaytraceSceneRadius

protected

Radius of bounding sphere of the scene.

◆ myRaytraceScreenQuad

OpenGl_VertexBuffer OpenGl_View::myRaytraceScreenQuad

protected

Vertex buffer (VBO) for drawing dummy quad.

◆ myRaytraceShader

Handle< OpenGl_ShaderObject > OpenGl_View::myRaytraceShader

protected

OpenGL/GLSL ray-tracing fragment shader.

◆ myRaytraceShaderSource

ShaderSource OpenGl_View::myRaytraceShaderSource

protected

OpenGL/GLSL source of ray-tracing fragment shader.

◆ myRaytraceTileOffsetsTexture

Handle< OpenGl_Texture > OpenGl_View::myRaytraceTileOffsetsTexture[2]

protected

Texture containing offsets of sampled screen tiles (2 textures are used in stereo mode). Used if adaptive screen sampling is activated.

◆ myRaytraceVisualErrorTexture

Handle< OpenGl_Texture > OpenGl_View::myRaytraceVisualErrorTexture[2]

protected

Texture containing per-tile visual error estimation (2 textures are used in stereo mode). Used if adaptive screen sampling is activated.

◆ myRNG

math_BullardGenerator OpenGl_View::myRNG

protected

Bullard RNG to produce random sequence.

◆ mySceneMaxPointTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::mySceneMaxPointTexture

protected

Texture buffer of maximum points of bottom-level BVH nodes.

◆ mySceneMinPointTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::mySceneMinPointTexture

protected

Texture buffer of minimum points of bottom-level BVH nodes.

◆ mySceneNodeInfoTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::mySceneNodeInfoTexture

protected

Texture buffer of data records of bottom-level BVH nodes.

◆ mySceneTransformTexture

Handle< OpenGl_TextureBufferArb > OpenGl_View::mySceneTransformTexture

protected

Texture buffer of transformations of high-level BVH nodes.

◆ myStateCounter

OpenGl_StateCounter* OpenGl_View::myStateCounter

protected

main list of displayed structure, sorted by layers

◆ myStructureStates

std::map<const OpenGl_Structure*, StructState> OpenGl_View::myStructureStates

protected

State of OpenGL structures reflected to ray-tracing.

◆ myTextureEnv

Handle< OpenGl_TextureSet > OpenGl_View::myTextureEnv

protected

main list of displayed structure, sorted by layers

◆ myTextureEnvData

Handle< Graphic3d_TextureEnv > OpenGl_View::myTextureEnvData

protected

main list of displayed structure, sorted by layers

◆ myTextureParams

OpenGl_AspectFace* OpenGl_View::myTextureParams

protected

Stores texture and its parameters for textured background.

◆ myTileSampler

OpenGl_TileSampler OpenGl_View::myTileSampler

protected

Tool object for sampling screen tiles in PT mode.

◆ myToDisableMSAA

Standard_Boolean OpenGl_View::myToDisableMSAA

protected

disable MSAA after failure

◆ myToDisableOIT

Standard_Boolean OpenGl_View::myToDisableOIT

protected

disable OIT on failure

◆ myToDisableOITMSAA

Standard_Boolean OpenGl_View::myToDisableOITMSAA

protected

disable OIT with MSAA on failure

◆ myToFlipOutput

Standard_Boolean OpenGl_View::myToFlipOutput

protected

Flag to draw result image upside-down.

◆ myToShowGradTrihedron

Standard_Boolean OpenGl_View::myToShowGradTrihedron

protected

main list of displayed structure, sorted by layers

◆ myToUpdateEnvironmentMap

Standard_Boolean OpenGl_View::myToUpdateEnvironmentMap

protected

Marks if environment map should be updated.

◆ myTransientDrawToFront

Standard_Boolean OpenGl_View::myTransientDrawToFront

protected

optimization flag for immediate mode (to render directly to the front buffer)

◆ myUniformLocations

Standard_Integer OpenGl_View::myUniformLocations[2][OpenGl_RT_NbVariables]

protected

Cached locations of frequently used uniform variables.

◆ myWasRedrawnGL

Standard_Boolean OpenGl_View::myWasRedrawnGL

protected

main list of displayed structure, sorted by layers

◆ myWindow

Handle< OpenGl_Window > OpenGl_View::myWindow

protected

main list of displayed structure, sorted by layers

◆ myWorkspace

Handle< OpenGl_Workspace > OpenGl_View::myWorkspace

protected

main list of displayed structure, sorted by layers

◆ myWorldViewProjState

Graphic3d_WorldViewProjState OpenGl_View::myWorldViewProjState

protected

camera modification state

◆ myZLayers

OpenGl_LayerList OpenGl_View::myZLayers

protected

main list of displayed structure, sorted by layers

◆ THE_DEFAULT_NB_BOUNCES

const Standard_Integer OpenGl_View::THE_DEFAULT_NB_BOUNCES = 3

staticprotected

Default ray-tracing depth.

◆ THE_DEFAULT_STACK_SIZE

const Standard_Integer OpenGl_View::THE_DEFAULT_STACK_SIZE = 10

staticprotected

Default size of traversal stack.

The documentation for this class was generated from the following file:

OpenGl_View.hxx

OpenGl_View Class Reference

Data Structures

Public Member Functions

Protected Member Functions

Protected Attributes

Rendering of GL graphics (with prepared drawing buffer).

data types related to ray-tracing

fields related to ray-tracing

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ StateInfo

Member Enumeration Documentation

◆ RaytraceInitStatus

◆ RaytraceUpdateMode

◆ ShaderImageNames

◆ ShaderVariableIndex

Constructor & Destructor Documentation

◆ OpenGl_View()

◆ ~OpenGl_View()

Member Function Documentation

◆ addRaytraceGroups()

◆ addRaytracePolygonArray()

◆ addRaytracePrimitiveArray()

◆ addRaytraceQuadrangleArray()

◆ addRaytraceQuadrangleStripArray()

◆ addRaytraceStructure()

◆ addRaytraceTriangleArray()

◆ addRaytraceTriangleFanArray()

◆ addRaytraceTriangleStripArray()

◆ addRaytraceVertexIndices()

◆ AddZLayer()

◆ BackfacingModel()

◆ Background()

◆ BackgroundColor()

◆ BackgroundImage()

◆ BackgroundImageStyle()

◆ bindDefaultFbo()

◆ bindRaytraceTextures()

◆ blitBuffers()

◆ BufferDump()

◆ BVHTreeSelector()

◆ Camera()

◆ ChangeGraduatedTrihedron()

◆ ClipPlanes()

◆ convertMaterial()

◆ DEFINE_STANDARD_RTTIEXT()

◆ DiagnosticInformation()

◆ drawBackground()

◆ Export()

◆ FBO()

◆ FBOChangeViewport()

◆ FBOCreate()

◆ FBOGetDimensions()

◆ FBORelease()

◆ generateShaderPrefix()

◆ GetGraduatedTrihedron()

◆ GlTextureEnv()

◆ GlWindow()

◆ GradientBackground()

◆ GraduatedTrihedronDisplay()

◆ GraduatedTrihedronErase()

◆ GraduatedTrihedronMinMaxValues()

◆ HasImmediateStructures()

◆ initProgram()

◆ initRaytraceResources()

◆ initShader()

◆ initTextureEnv()

◆ Invalidate()

◆ InvalidateBVHData()

◆ InvalidateZLayerBoundingBox()

◆ IsCullingEnabled()

◆ IsDefined()

◆ IsInvalidated()

◆ LayerList()

◆ Lights()

◆ LocalOrigin()

◆ raytrace()

◆ Redraw()

◆ redraw()