OpenGl_View Class Reference

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.
virtual	~OpenGl_View ()
	Default destructor.
virtual void	ReleaseGlResources (const Handle< OpenGl_Context > &theCtx)
	Release OpenGL resources.
virtual void	Remove () override
	Deletes and erases the view.
Standard_Boolean	SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer) override
virtual void	SetWindow (const Handle< Graphic3d_CView > &theParentVIew, const Handle< Aspect_Window > &theWindow, const Aspect_RenderingContext theContext) override
	Creates and maps rendering window to the view.
virtual Handle< Aspect_Window >	Window () const override
	Returns window associated with the view.
virtual Standard_Boolean	IsDefined () const override
	Returns True if the window associated to the view is defined.
virtual void	Resized () override
	Handle changing size of the rendering window.
virtual void	Redraw () override
	Redraw content of the view.
virtual void	RedrawImmediate () override
	Redraw immediate content of the view.
virtual void	Invalidate () override
	Marks BVH tree for given priority list as dirty and marks primitive set for rebuild.
virtual Standard_Boolean	IsInvalidated () override
	Return true if view content cache has been invalidated.
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.
virtual Standard_Boolean	ShadowMapDump (Image_PixMap &theImage, const TCollection_AsciiString &theLightName) override
	Dumps the graphical contents of a shadowmap framebuffer into an image.
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	Marks BVH tree and the set of BVH primitives of correspondent priority list with id theLayerId as outdated.
virtual void	InsertLayerBefore (const Graphic3d_ZLayerId theLayerId, const Graphic3d_ZLayerSettings &theSettings, const Graphic3d_ZLayerId theLayerAfter) override
	Add a layer to the view.
virtual void	InsertLayerAfter (const Graphic3d_ZLayerId theNewLayerId, const Graphic3d_ZLayerSettings &theSettings, const Graphic3d_ZLayerId theLayerBefore) override
	Add a layer to the view.
virtual void	RemoveZLayer (const Graphic3d_ZLayerId theLayerId) override
	Remove a z layer with the given ID.
virtual void	SetZLayerSettings (const Graphic3d_ZLayerId theLayerId, const Graphic3d_ZLayerSettings &theSettings) override
	Sets the settings for a single Z layer of specified view.
virtual Standard_Integer	ZLayerMax () const override
	Returns the maximum Z layer ID. First layer ID is Graphic3d_ZLayerId_Default, last ID is ZLayerMax().
virtual const NCollection_List< Handle< Graphic3d_Layer > > &	Layers () const override
	Returns the list of layers.
virtual Handle< Graphic3d_Layer >	Layer (const Graphic3d_ZLayerId theLayerId) const override
	Returns layer with given ID or NULL if undefined.
virtual Bnd_Box	MinMaxValues (const Standard_Boolean theToIncludeAuxiliary) const override
	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.
virtual Handle< Standard_Transient >	FBO () const override
	Returns pointer to an assigned framebuffer object.
virtual void	SetFBO (const Handle< Standard_Transient > &theFbo) override
	Sets framebuffer object for offscreen rendering.
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.
virtual void	FBORelease (Handle< Standard_Transient > &theFbo) override
	Remove offscreen FBO from the graphic library.
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.
virtual void	FBOChangeViewport (const Handle< Standard_Transient > &theFbo, const Standard_Integer theWidth, const Standard_Integer theHeight) override
	Change offscreen FBO viewport.
const Handle< OpenGl_DepthPeeling > &	DepthPeelingFbos () const
	Returns additional buffers for depth peeling OIT.
virtual Aspect_GradientBackground	GradientBackground () const override
	Returns gradient background fill colors.
virtual void	SetGradientBackground (const Aspect_GradientBackground &theBackground) override
	Sets gradient background fill colors.
virtual void	SetBackgroundImage (const Handle< Graphic3d_TextureMap > &theTextureMap, Standard_Boolean theToUpdatePBREnv=Standard_True) override
	Sets image texture or environment cubemap as background.
virtual void	SetTextureEnv (const Handle< Graphic3d_TextureEnv > &theTextureEnv) override
	Sets environment texture for the view.
virtual Aspect_FillMethod	BackgroundImageStyle () const override
	Returns background image fill style.
virtual void	SetBackgroundImageStyle (const Aspect_FillMethod theFillStyle) override
	Sets background image fill style.
virtual void	SetImageBasedLighting (Standard_Boolean theToEnableIBL) override
	Enables or disables IBL (Image Based Lighting) from background cubemap. Has no effect if PBR is not used.
unsigned int	SpecIBLMapLevels () const
	Returns number of mipmap levels used in specular IBL map. 0 if PBR environment is not created.
const gp_XYZ &	LocalOrigin () const
	Returns local camera origin currently set for rendering, might be modified during rendering.
void	SetLocalOrigin (const gp_XYZ &theOrigin)
	Setup local camera origin currently set for rendering.
virtual const Handle< Graphic3d_LightSet > &	Lights () const override
	Returns list of lights of the view.
virtual void	SetLights (const Handle< Graphic3d_LightSet > &theLights) override
	Sets list of lights for the view.
virtual const Handle< Graphic3d_SequenceOfHClipPlane > &	ClipPlanes () const override
	Returns list of clip planes set for the view.
virtual void	SetClipPlanes (const Handle< Graphic3d_SequenceOfHClipPlane > &thePlanes) override
	Sets list of clip planes for the view.
virtual void	DiagnosticInformation (TColStd_IndexedDataMapOfStringString &theDict, Graphic3d_DiagnosticInfo theFlags) const override
	Fill in the dictionary with diagnostic info. Should be called within rendering thread.
virtual TCollection_AsciiString	StatisticInformation () const override
	Returns string with statistic performance info.
virtual void	StatisticInformation (TColStd_IndexedDataMapOfStringString &theDict) const override
	Fills in the dictionary with statistic performance info.
const Quantity_ColorRGBA &	BackgroundColor () const
	Returns background color.
OpenGl_GraduatedTrihedron &	ChangeGraduatedTrihedron ()
	Change graduated trihedron.
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.
const Handle< OpenGl_Window > &	GlWindow () const
	Returns OpenGL window implementation.
const Handle< OpenGl_TextureSet > &	GlTextureEnv () const
	Returns OpenGL environment map.
const Graphic3d_CullingTool &	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.
bool	HasImmediateStructures () const
	Returns true if there are immediate structures to display.
obsolete Graduated Trihedron functionality
virtual void	GraduatedTrihedronDisplay (const Graphic3d_GraduatedTrihedron &theTrihedronData) override
	Displays Graduated Trihedron.
virtual void	GraduatedTrihedronErase () override
	Erases Graduated Trihedron.
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.
Public Member Functions inherited from Graphic3d_CView
	Graphic3d_CView (const Handle< Graphic3d_StructureManager > &theMgr)
	Constructor.
virtual	~Graphic3d_CView ()
	Destructor.
Standard_Integer	Identification () const
	Returns the identification number of the view.
virtual void	Activate ()
	Activates the view. Maps presentations defined within structure manager onto this view.
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().
Standard_Boolean	IsActive () const
	Returns the activity flag of the view.
Standard_Boolean	IsRemoved () const
	Returns true if the view was removed.
virtual const Handle< Graphic3d_Camera > &	Camera () const override
	Returns camera object of the view.
virtual void	SetCamera (const Handle< Graphic3d_Camera > &theCamera)
	Sets camera used by the view.
Graphic3d_TypeOfShadingModel	ShadingModel () const
	Returns default Shading Model of the view; Graphic3d_TypeOfShadingModel_Phong by default.
void	SetShadingModel (Graphic3d_TypeOfShadingModel theModel)
	Sets default Shading Model of the view. Will throw an exception on attempt to set Graphic3d_TypeOfShadingModel_DEFAULT.
Graphic3d_TypeOfBackfacingModel	BackfacingModel () const
	Return backfacing model used for the view; Graphic3d_TypeOfBackfacingModel_Auto by default, which means that backface culling is defined by each presentation.
void	SetBackfacingModel (const Graphic3d_TypeOfBackfacingModel theModel)
	Sets backfacing model for the view.
Graphic3d_TypeOfVisualization	VisualizationType () const
	Returns visualization type of the view.
void	SetVisualizationType (const Graphic3d_TypeOfVisualization theType)
	Sets visualization type of the view.
Graphic3d_ZLayerId	ZLayerTarget () const
	Returns ZLayerId target.
void	SetZLayerTarget (const Graphic3d_ZLayerId theTarget)
	Sets ZLayerId target.
Standard_Boolean	ZLayerRedrawMode () const
	Returns ZLayerId redraw mode.
void	SetZLayerRedrawMode (const Standard_Boolean theMode)
	Sets ZLayerId redraw mode.
void	SetComputedMode (const Standard_Boolean theMode)
	Switches computed HLR mode in the view.
Standard_Boolean	ComputedMode () const
	Returns the computed HLR mode state.
void	ReCompute (const Handle< Graphic3d_Structure > &theStructure)
	Computes the new presentation of the structure displayed in this view with the type Graphic3d_TOS_COMPUTED.
void	Update (const Graphic3d_ZLayerId theLayerId=Graphic3d_ZLayerId_UNKNOWN)
	Invalidates bounding box of specified ZLayerId.
void	Compute ()
	Computes the new presentation of the structures displayed in this view with the type Graphic3d_TOS_COMPUTED.
void	DisplayedStructures (Graphic3d_MapOfStructure &theStructures) const
	Returns the set of structures displayed in this view.
virtual Standard_Integer	NumberOfDisplayedStructures () const
	Returns number of displayed structures in the view.
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>.
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.
const Handle< Graphic3d_StructureManager > &	StructureManager () const
	Returns the structure manager handle which manage structures associated with this view.
virtual void	InvalidateZLayerBoundingBox (const Graphic3d_ZLayerId theLayerId)
	Returns the bounding box of all structures displayed in the Z layer.
Standard_Real	ConsiderZoomPersistenceObjects ()
	Returns zoom-scale factor.
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.
const Graphic3d_RenderingParams &	RenderingParams () const
	Returns current rendering parameters and effect settings.
Graphic3d_RenderingParams &	ChangeRenderingParams ()
	Returns reference to current rendering parameters and effect settings.
virtual Aspect_Background	Background () const
	Returns background fill color.
virtual void	SetBackground (const Aspect_Background &theBackground)
	Sets background fill color.
const Handle< Graphic3d_TextureMap > &	BackgroundImage ()
	Returns background image texture map.
const Handle< Graphic3d_CubeMap > &	BackgroundCubeMap () const
	Returns cubemap being set last time on background.
const Handle< Graphic3d_CubeMap > &	IBLCubeMap () const
	Returns cubemap being set last time on background.
Graphic3d_TypeOfBackground	BackgroundType () const
	Returns background type.
void	SetBackgroundType (Graphic3d_TypeOfBackground theType)
	Sets background type.
const Aspect_SkydomeBackground &	BackgroundSkydome () const
	Returns skydome aspect;.
void	SetBackgroundSkydome (const Aspect_SkydomeBackground &theAspect, Standard_Boolean theToUpdatePBREnv=Standard_True)
	Sets skydome aspect.
const Handle< Graphic3d_TextureEnv > &	TextureEnv () const
	Returns environment texture set for the view.
Standard_Real	UnitFactor () const
	Return unit scale factor defined as scale factor for m (meters); 1.0 by default. Normally, view definition is unitless, however some operations like VR input requires proper units mapping.
void	SetUnitFactor (Standard_Real theFactor)
	Set unit scale factor.
const Handle< Aspect_XRSession > &	XRSession () const
	Return XR session.
void	SetXRSession (const Handle< Aspect_XRSession > &theSession)
	Set XR session.
bool	IsActiveXR () const
	Return TRUE if there is active XR session.
virtual bool	InitXR ()
	Initialize XR session.
virtual void	ReleaseXR ()
	Release XR session.
virtual void	ProcessXRInput ()
	Process input.
void	SetupXRPosedCamera ()
	Compute PosedXRCamera() based on current XR head pose and make it active.
void	UnsetXRPosedCamera ()
	Set current camera back to BaseXRCamera() and copy temporary modifications of PosedXRCamera(). Calls SynchronizeXRPosedToBaseCamera() beforehand.
const Handle< Graphic3d_Camera > &	PosedXRCamera () const
	Returns transient XR camera position with tracked head orientation applied.
void	SetPosedXRCamera (const Handle< Graphic3d_Camera > &theCamera)
	Sets transient XR camera position with tracked head orientation applied.
const Handle< Graphic3d_Camera > &	BaseXRCamera () const
	Returns anchor camera definition (without tracked head orientation).
void	SetBaseXRCamera (const Handle< Graphic3d_Camera > &theCamera)
	Sets anchor camera definition.
gp_Trsf	PoseXRToWorld (const gp_Trsf &thePoseXR) const
	Convert XR pose to world space.
gp_Ax1	ViewAxisInWorld (const gp_Trsf &thePoseXR) const
	Returns view direction in the world space based on XR pose.
void	SynchronizeXRBaseToPosedCamera ()
	Recomputes PosedXRCamera() based on BaseXRCamera() and head orientation.
void	SynchronizeXRPosedToBaseCamera ()
	Checks if PosedXRCamera() has been modified since SetupXRPosedCamera() and copies these modifications to BaseXRCamera().
void	ComputeXRPosedCameraFromBase (Graphic3d_Camera &theCam, const gp_Trsf &theXRTrsf) const
	Compute camera position based on XR pose.
void	ComputeXRBaseCameraFromPosed (const Graphic3d_Camera &theCamPosed, const gp_Trsf &thePoseTrsf)
	Update based camera from posed camera by applying reversed transformation.
void	TurnViewXRCamera (const gp_Trsf &theTrsfTurn)
	Turn XR camera direction using current (head) eye position as anchor.
virtual const Graphic3d_GraduatedTrihedron &	GetGraduatedTrihedron ()
	Returns data of a graduated trihedron.
virtual void	DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const override
	Dumps the content of me into the stream.
bool	IsSubview () const
	Return TRUE if this is a subview of another view.
Graphic3d_CView *	ParentView ()
	Return parent View or NULL if this is not a subview.
bool	IsSubviewComposer () const
	Return TRUE if this is view performs rendering of subviews and nothing else; FALSE by default. By default, view with subviews will render main scene and blit subviews on top of it. Rendering of main scene might become redundant in case if subviews cover entire window of parent view. This flag allows to disable rendering of the main scene in such scenarios without creation of a dedicated V3d_Viewer instance just for composing subviews.
void	SetSubviewComposer (bool theIsComposer)
	Set if this view should perform composing of subviews and nothing else.
const NCollection_Sequence< Handle< Graphic3d_CView > > &	Subviews () const
	Return subview list.
void	AddSubview (const Handle< Graphic3d_CView > &theView)
	Add subview to the list.
bool	RemoveSubview (const Graphic3d_CView *theView)
	Remove subview from the list.
Aspect_TypeOfTriedronPosition	SubviewCorner () const
	Return subview position within parent view; Aspect_TOTP_LEFT_UPPER by default.
void	SetSubviewCorner (Aspect_TypeOfTriedronPosition thePos)
	Set subview position within parent view.
const Graphic3d_Vec2i &	SubviewTopLeft () const
	Return subview top-left position relative to parent view in pixels.
bool	IsSubViewRelativeSize () const
	Return TRUE if subview size is set as proportions relative to parent view.
const Graphic3d_Vec2d &	SubviewSize () const
	Return subview dimensions; (1.0, 1.0) by default. Values >= 2 define size in pixels; Values <= 1.0 define size as fraction of parent view.
void	SetSubviewSize (const Graphic3d_Vec2d &theSize)
	Set subview size relative to parent view.
const Graphic3d_Vec2d &	SubviewOffset () const
	Return corner offset within parent view; (0.0,0.0) by default. Values >= 2 define offset in pixels; Values <= 1.0 define offset as fraction of parent view dimensions.
void	SetSubviewOffset (const Graphic3d_Vec2d &theOffset)
	Set corner offset within parent view.
const Graphic3d_Vec2i &	SubviewMargins () const
	Return subview margins in pixels; (0,0) by default.
void	SetSubviewMargins (const Graphic3d_Vec2i &theMargins)
	Set subview margins in pixels.
void	SubviewResized (const Handle< Aspect_NeutralWindow > &theWindow)
	Update subview position and dimensions.
Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.
	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.
Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.
virtual	~Standard_Transient ()
	Destructor must be virtual.
virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.
Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.
Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.
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.
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.
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.
Standard_Integer	GetRefCount () const noexcept
	Get the reference counter of this object.
void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.
Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.
virtual void	Delete () const
	Memory deallocator for transient classes.

Protected Member Functions
Internal methods for managing GL resources
void	initTextureEnv (const Handle< OpenGl_Context > &theContext)
	Initializes OpenGl resource for environment texture.
low-level redrawing sub-routines
virtual bool	prepareFrameBuffers (Graphic3d_Camera::Projection &theProj)
	Prepare frame buffers for rendering.
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.
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.
bool	blitSubviews (const Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theDrawFbo)
	Blit subviews into this view.
bool	blitBuffers (OpenGl_FrameBuffer *theReadFbo, OpenGl_FrameBuffer *theDrawFbo, const Standard_Boolean theToFlip=Standard_False)
	Blit image from/to specified buffers.
void	bindDefaultFbo (OpenGl_FrameBuffer *theCustomFbo=NULL)
	Setup default FBO.
methods related to skydome background
void	updateSkydomeBg (const Handle< OpenGl_Context > &theCtx)
	Generates skydome cubemap.
methods related to PBR
Standard_Boolean	checkPBRAvailability () const
	Checks whether PBR is available.
void	updatePBREnvironment (const Handle< OpenGl_Context > &theCtx)
	Generates IBL maps used in PBR pipeline. If background cubemap is not set clears all IBL maps.
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.
Standard_Boolean	updateRaytraceLightSources (const OpenGl_Mat4 &theInvModelView, const Handle< OpenGl_Context > &theGlContext)
	Updates 3D scene light sources for ray-tracing.
Standard_Boolean	toUpdateStructure (const OpenGl_Structure *theStructure)
	Checks to see if the OpenGL structure is modified.
Standard_Boolean	addRaytraceStructure (const OpenGl_Structure *theStructure, const Handle< OpenGl_Context > &theGlContext)
	Adds OpenGL structure to ray-traced scene geometry.
Standard_Boolean	addRaytraceGroups (const OpenGl_Structure *theStructure, const OpenGl_RaytraceMaterial &theStructMat, const Handle< TopLoc_Datum3D > &theTrsf, const Handle< OpenGl_Context > &theGlContext)
	Adds OpenGL groups to ray-traced scene geometry.
OpenGl_RaytraceMaterial	convertMaterial (const OpenGl_Aspects *theAspect, const Handle< OpenGl_Context > &theGlContext)
	Creates ray-tracing material properties.
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.
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.
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.
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.
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.
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.
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.
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.
Standard_Boolean	uploadRaytraceData (const Handle< OpenGl_Context > &theGlContext)
	Uploads ray-trace data to the GPU.
TCollection_AsciiString	generateShaderPrefix (const Handle< OpenGl_Context > &theGlContext) const
	Generates shader prefix based on current ray-tracing options.
Standard_Boolean	safeFailBack (const TCollection_ExtendedString &theMessage, const Handle< OpenGl_Context > &theGlContext)
	Performs safe exit when shaders initialization fails.
Handle< OpenGl_ShaderObject >	initShader (const GLenum theType, const ShaderSource &theSource, const Handle< OpenGl_Context > &theGlContext)
	Loads and compiles shader object from specified source.
Handle< OpenGl_ShaderProgram >	initProgram (const Handle< OpenGl_Context > &theGlContext, const Handle< OpenGl_ShaderObject > &theVertShader, const Handle< OpenGl_ShaderObject > &theFragShader, const TCollection_AsciiString &theName)
	Creates shader program from the given vertex and fragment shaders.
Standard_Boolean	initRaytraceResources (const Standard_Integer theSizeX, const Standard_Integer theSizeY, const Handle< OpenGl_Context > &theGlContext)
	Initializes OpenGL/GLSL shader programs.
void	releaseRaytraceResources (const Handle< OpenGl_Context > &theGlContext, const Standard_Boolean theToRebuild=Standard_False)
	Releases OpenGL/GLSL shader programs.
Standard_Boolean	updateRaytraceBuffers (const Standard_Integer theSizeX, const Standard_Integer theSizeY, const Handle< OpenGl_Context > &theGlContext)
	Updates auxiliary OpenGL frame buffers.
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)
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).
void	bindRaytraceTextures (const Handle< OpenGl_Context > &theGlContext, int theStereoView)
	Binds ray-trace textures to corresponding texture units.
void	unbindRaytraceTextures (const Handle< OpenGl_Context > &theGlContext)
	Unbinds ray-trace textures from corresponding texture unit.
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.
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.
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.
Standard_Boolean	runPathtrace (const Standard_Integer theSizeX, const Standard_Integer theSizeY, Graphic3d_Camera::Projection theProjection, const Handle< OpenGl_Context > &theGlContext)
	Runs path tracing (global illumination) kernel.
Standard_Boolean	runPathtraceOut (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const Handle< OpenGl_Context > &theGlContext)
	Runs path tracing (global illumination) kernel.
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.
Protected Member Functions inherited from Graphic3d_DataStructureManager
	Graphic3d_DataStructureManager ()
	Initializes the manager <me>.

Protected Attributes
Rendering properties
Standard_Integer	mySRgbState
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).
GLint	myFboColorFormat
	sized format for color attachments
GLint	myFboDepthFormat
	sized format for depth-stencil attachments
OpenGl_ColorFormats	myFboOitColorConfig
	selected color format configuration for OIT color attachments
Handle< OpenGl_FrameBuffer >	myMainSceneFbos [2]
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).
Handle< OpenGl_FrameBuffer >	myMainSceneFbosOit [2]
	Additional buffers for transparent draw of main layer.
Handle< OpenGl_FrameBuffer >	myImmediateSceneFbos [2]
	Additional buffers for immediate layer in stereo mode.
Handle< OpenGl_FrameBuffer >	myImmediateSceneFbosOit [2]
	Additional buffers for transparency draw of immediate layer.
Handle< OpenGl_FrameBuffer >	myXrSceneFbo
	additional FBO (without MSAA) for submitting to XR
Handle< OpenGl_DepthPeeling >	myDepthPeelingFbos
	additional buffers for depth peeling
Handle< OpenGl_ShadowMapArray >	myShadowMaps
	additional FBOs for shadow map rendering
OpenGl_VertexBuffer	myFullScreenQuad
	Vertices for full-screen quad rendering.
OpenGl_VertexBuffer	myFullScreenQuadFlip
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).
Standard_Boolean	myToFlipOutput
	Flag to draw result image upside-down.
unsigned int	myFrameCounter
	redraw counter, for debugging
Standard_Boolean	myHasFboBlit
	disable FBOs on failure
Standard_Boolean	myToDisableOIT
	disable OIT on failure
Standard_Boolean	myToDisableOITMSAA
	disable OIT with MSAA on failure
Standard_Boolean	myToDisableMSAA
	disable MSAA after failure
Standard_Boolean	myTransientDrawToFront
	optimization flag for immediate mode (to render directly to the front buffer)
Standard_Boolean	myBackBufferRestored
	Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).
Standard_Boolean	myIsImmediateDrawn
	flag indicates that immediate mode buffer contains some data
Background parameters
OpenGl_Aspects *	myTextureParams
	Stores texture and its parameters for textured background.
OpenGl_Aspects *	myCubeMapParams
	Stores cubemap and its parameters for cubemap background.
OpenGl_Aspects *	myColoredQuadParams
	Stores parameters for gradient (corner mode) background.
OpenGl_BackgroundArray *	myBackgrounds [Graphic3d_TypeOfBackground_NB]
	Array of primitive arrays of different background types.
Handle< OpenGl_TextureSet >	myTextureEnv
	Stores texture and its parameters for textured background.
Handle< OpenGl_Texture >	mySkydomeTexture
	Stores texture and its parameters for textured background.
Protected Attributes inherited from Graphic3d_CView
Standard_Integer	myId
	list of child views
Graphic3d_RenderingParams	myRenderParams
	list of child views
NCollection_Sequence< Handle< Graphic3d_CView > >	mySubviews
	list of child views
Graphic3d_CView *	myParentView
	back-pointer to the parent view
Standard_Boolean	myIsSubviewComposer
	flag to skip rendering of viewer contents
Aspect_TypeOfTriedronPosition	mySubviewCorner
	position within parent view
Graphic3d_Vec2i	mySubviewTopLeft
	subview top-left position relative to parent view
Graphic3d_Vec2i	mySubviewMargins
	subview margins in pixels
Graphic3d_Vec2d	mySubviewSize
	subview size
Graphic3d_Vec2d	mySubviewOffset
	subview corner offset within parent view
Handle< Graphic3d_StructureManager >	myStructureManager
	list of child views
Handle< Graphic3d_Camera >	myCamera
	list of child views
Graphic3d_SequenceOfStructure	myStructsToCompute
	list of child views
Graphic3d_SequenceOfStructure	myStructsComputed
	list of child views
Graphic3d_MapOfStructure	myStructsDisplayed
	list of child views
Standard_Boolean	myIsInComputedMode
	list of child views
Standard_Boolean	myIsActive
	list of child views
Standard_Boolean	myIsRemoved
	list of child views
Graphic3d_TypeOfBackfacingModel	myBackfacing
	list of child views
Graphic3d_TypeOfVisualization	myVisualization
	list of child views
Graphic3d_ZLayerId	myZLayerTarget
	ZLayerId for redrawing the content of specific zlayers.
Standard_Boolean	myZLayerRedrawMode
	If true redraws single layer, otherwise redraws group of layers.
Quantity_ColorRGBA	myBgColor
	list of child views
Handle< Graphic3d_TextureMap >	myBackgroundImage
	list of child views
Handle< Graphic3d_CubeMap >	myCubeMapBackground
	Cubemap displayed at background.
Handle< Graphic3d_CubeMap >	myCubeMapIBL
	Cubemap used for environment lighting.
Handle< Graphic3d_TextureEnv >	myTextureEnvData
	list of child views
Graphic3d_GraduatedTrihedron	myGTrihedronData
	list of child views
Graphic3d_TypeOfBackground	myBackgroundType
	Current type of background.
Aspect_SkydomeBackground	mySkydomeAspect
	list of child views
Standard_Boolean	myToUpdateSkydome
	list of child views
Handle< Aspect_XRSession >	myXRSession
	list of child views
Handle< Graphic3d_Camera >	myBackXRCamera
	camera projection parameters to restore after closing XR session (FOV, aspect and similar)
Handle< Graphic3d_Camera >	myBaseXRCamera
	neutral camera orientation defining coordinate system in which head tracking is defined
Handle< Graphic3d_Camera >	myPosedXRCamera
	transient XR camera orientation with tracked head orientation applied (based on myBaseXRCamera)
Handle< Graphic3d_Camera >	myPosedXRCameraCopy
	neutral camera orientation copy at the beginning of processing input
Standard_Real	myUnitFactor
	unit scale factor defined as scale factor for m (meters)

fields and types related to PBR
enum	PBREnvironmentState { OpenGl_PBREnvState_NONEXISTENT , OpenGl_PBREnvState_UNAVAILABLE , OpenGl_PBREnvState_CREATED }
	State of PBR environment. More...
Handle< OpenGl_PBREnvironment >	myPBREnvironment
	manager of IBL maps used in PBR pipeline
PBREnvironmentState	myPBREnvState
	state of PBR environment
Standard_Boolean	myPBREnvRequest
	update PBR environment

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_uEnvMapEnabled ,   OpenGl_RT_uEnvMapForBack , OpenGl_RT_uTexSamplersArray , OpenGl_RT_uBlockedRngEnabled , OpenGl_RT_uWinSizeX ,   OpenGl_RT_uWinSizeY , OpenGl_RT_uAccumSamples , OpenGl_RT_uFrameRndSeed , OpenGl_RT_uFsaaOffset ,   OpenGl_RT_uSamples , OpenGl_RT_uRenderImage , OpenGl_RT_uTilesImage , OpenGl_RT_uOffsetImage ,   OpenGl_RT_uTileSize , OpenGl_RT_uVarianceScaleFactor , OpenGl_RT_uMaxRadiance , OpenGl_RT_NbVariables }
	Defines frequently used shader variables. More...
enum	ShaderImageNames { OpenGl_RT_OutputImage = 0 , OpenGl_RT_VisualErrorImage = 1 , OpenGl_RT_TileOffsetsImage = 2 , OpenGl_RT_TileSamplesImage = 3 }
	Defines OpenGL image samplers. More...
static const Standard_Integer	THE_DEFAULT_NB_BOUNCES = 3
	Default ray-tracing depth.
static const Standard_Integer	THE_DEFAULT_STACK_SIZE = 10
	Default size of traversal stack.

Rendering of GL graphics (with prepared drawing buffer).
typedef std::pair< Standard_Size, Standard_Size >	StateInfo
	main list of displayed structure, sorted by layers
OpenGl_GraphicDriver *	myDriver
	main list of displayed structure, sorted by layers
Handle< OpenGl_Window >	myWindow
	main list of displayed structure, sorted by layers
Handle< OpenGl_Workspace >	myWorkspace
	main list of displayed structure, sorted by layers
Handle< OpenGl_Caps >	myCaps
	main list of displayed structure, sorted by layers
Standard_Boolean	myWasRedrawnGL
	main list of displayed structure, sorted by layers
Handle< Graphic3d_SequenceOfHClipPlane >	myClipPlanes
	main list of displayed structure, sorted by layers
gp_XYZ	myLocalOrigin
	main list of displayed structure, sorted by layers
Handle< OpenGl_FrameBuffer >	myFBO
	main list of displayed structure, sorted by layers
Standard_Boolean	myToShowGradTrihedron
	main list of displayed structure, sorted by layers
Graphic3d_GraduatedTrihedron	myGTrihedronData
	main list of displayed structure, sorted by layers
Handle< Graphic3d_LightSet >	myNoShadingLight
	main list of displayed structure, sorted by layers
Handle< Graphic3d_LightSet >	myLights
	main list of displayed structure, sorted by layers
OpenGl_LayerList	myZLayers
	main list of displayed structure, sorted by layers
Graphic3d_WorldViewProjState	myWorldViewProjState
	camera modification state
OpenGl_StateCounter *	myStateCounter
	main list of displayed structure, sorted by layers
Standard_Size	myCurrLightSourceState
	main list of displayed structure, sorted by layers
Standard_Size	myLightsRevision
	main list of displayed structure, sorted by layers
StateInfo	myLastOrientationState
	main list of displayed structure, sorted by layers
StateInfo	myLastViewMappingState
	main list of displayed structure, sorted by layers
StateInfo	myLastLightSourceState
	main list of displayed structure, sorted by layers
Graphic3d_CullingTool	myBVHSelector
	Is needed for selection of overlapping objects and storage of the current view volume.
OpenGl_GraduatedTrihedron	myGraduatedTrihedron
	main list of displayed structure, sorted by layers
OpenGl_FrameStatsPrs	myFrameStatsPrs
	main list of displayed structure, sorted by layers
Handle< OpenGl_FrameBuffer >	myOpenGlFBO
	Framebuffers for OpenGL output.
Handle< OpenGl_FrameBuffer >	myOpenGlFBO2
	main list of displayed structure, sorted by layers
virtual void	renderShadowMap (const Handle< OpenGl_ShadowMap > &theShadowMap)
	Renders the graphical contents of the view into the prepared shadowmap framebuffer.
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 prepared window or framebuffer.
virtual void	renderScene (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, OpenGl_FrameBuffer *theOitAccumFbo, const Standard_Boolean theToDrawImmediate)
	Renders the graphical scene.
virtual void	drawBackground (const Handle< OpenGl_Workspace > &theWorkspace, Graphic3d_Camera::Projection theProjection)
	Draw background (gradient / image / cubemap)
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.
void	renderTrihedron (const Handle< OpenGl_Workspace > &theWorkspace)
	Renders trihedron.
void	renderFrameStats ()
	Renders frame statistics.

fields related to ray-tracing
RaytraceInitStatus	myRaytraceInitStatus
	Result of RT/PT shaders initialization.
Standard_Boolean	myIsRaytraceDataValid
	Is ray-tracing geometry data valid?
Standard_Boolean	myIsRaytraceWarnTextures
	True if warning about missing extension GL_ARB_bindless_texture has been displayed.
OpenGl_RaytraceGeometry	myRaytraceGeometry
	3D scene geometry data for ray-tracing.
opencascade::handle< BVH_Builder< Standard_ShortReal, 3 > >	myRaytraceBVHBuilder
	Builder for triangle set.
RaytracingParams	myRaytraceParameters
	Compile-time ray-tracing parameters.
Standard_ShortReal	myRaytraceSceneRadius
	Radius of bounding sphere of the scene.
Standard_ShortReal	myRaytraceSceneEpsilon
	Scene epsilon to prevent self-intersections.
ShaderSource	myRaytraceShaderSource
	OpenGL/GLSL source of ray-tracing fragment shader.
ShaderSource	myPostFSAAShaderSource
	OpenGL/GLSL source of adaptive-AA fragment shader.
ShaderSource	myOutImageShaderSource
	OpenGL/GLSL source of RT/PT display fragment shader.
Handle< OpenGl_ShaderObject >	myRaytraceShader
	OpenGL/GLSL ray-tracing fragment shader.
Handle< OpenGl_ShaderObject >	myPostFSAAShader
	OpenGL/GLSL adaptive-AA fragment shader.
Handle< OpenGl_ShaderObject >	myOutImageShader
	OpenGL/GLSL ray-tracing display fragment shader.
Handle< OpenGl_ShaderProgram >	myRaytraceProgram
	OpenGL/GLSL ray-tracing shader program.
Handle< OpenGl_ShaderProgram >	myPostFSAAProgram
	OpenGL/GLSL adaptive-AA shader program.
Handle< OpenGl_ShaderProgram >	myOutImageProgram
	OpenGL/GLSL program for displaying texture.
Handle< OpenGl_TextureBuffer >	mySceneNodeInfoTexture
	Texture buffer of data records of bottom-level BVH nodes.
Handle< OpenGl_TextureBuffer >	mySceneMinPointTexture
	Texture buffer of minimum points of bottom-level BVH nodes.
Handle< OpenGl_TextureBuffer >	mySceneMaxPointTexture
	Texture buffer of maximum points of bottom-level BVH nodes.
Handle< OpenGl_TextureBuffer >	mySceneTransformTexture
	Texture buffer of transformations of high-level BVH nodes.
Handle< OpenGl_TextureBuffer >	myGeometryVertexTexture
	Texture buffer of vertex coords.
Handle< OpenGl_TextureBuffer >	myGeometryNormalTexture
	Texture buffer of vertex normals.
Handle< OpenGl_TextureBuffer >	myGeometryTexCrdTexture
	Texture buffer of vertex UV coords.
Handle< OpenGl_TextureBuffer >	myGeometryTriangTexture
	Texture buffer of triangle indices.
Handle< OpenGl_TextureBuffer >	myRaytraceMaterialTexture
	Texture buffer of material properties.
Handle< OpenGl_TextureBuffer >	myRaytraceLightSrcTexture
	Texture buffer of light source properties.
Handle< OpenGl_FrameBuffer >	myRaytraceFBO1 [2]
	1st framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling).
Handle< OpenGl_FrameBuffer >	myRaytraceFBO2 [2]
	2nd framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling).
Handle< OpenGl_Texture >	myRaytraceOutputTexture [2]
	Output textures (2 textures are used in stereo mode). Used if adaptive screen sampling is activated.
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.
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.
Handle< OpenGl_Texture >	myRaytraceTileSamplesTexture [2]
	Texture containing amount of extra per-tile samples (2 textures are used in stereo mode). Used if adaptive screen sampling is activated.
OpenGl_VertexBuffer	myRaytraceScreenQuad
	Vertex buffer (VBO) for drawing dummy quad.
Standard_Integer	myUniformLocations [2][OpenGl_RT_NbVariables]
	Cached locations of frequently used uniform variables.
std::map< const OpenGl_Structure *, StructState >	myStructureStates
	State of OpenGL structures reflected to ray-tracing.
std::map< Standard_Size, OpenGl_TriangleSet * >	myArrayToTrianglesMap
	PrimitiveArray to TriangleSet map for scene partial update.
std::set< Standard_Integer >	myNonRaytraceStructureIDs
	Set of IDs of non-raytracable elements (to detect updates).
Standard_Boolean	myToUpdateEnvironmentMap
	Marks if environment map should be updated.
Standard_Size	myRaytraceLayerListState
	State of OpenGL layer list.
Standard_Integer	myAccumFrames
	Number of accumulated frames (for progressive rendering).
OpenGl_Vec3	myPreviousOrigins [3]
	Stored ray origins used for detection of camera movements.
math_BullardGenerator	myRNG
	Bullard RNG to produce random sequence.
OpenGl_TileSampler	myTileSampler
	Tool object for sampling screen tiles in PT mode.
OpenGl_Vec3	myEyeOrig
	Camera position used for projective mode.
OpenGl_Vec3	myEyeView
	Camera view direction used for projective mode.
OpenGl_Vec3	myEyeVert
	Camera's screen vertical direction used for projective mode.
OpenGl_Vec3	myEyeSide
	Camera's screen horizontal direction used for projective mode.
OpenGl_Vec2	myEyeSize
	Camera's screen size used for projective mode.
float	myPrevCameraApertureRadius
	Aperture radius of camera on previous frame used for depth-of-field (path tracing)
float	myPrevCameraFocalPlaneDist
	Focal distance of camera on previous frame used for depth-of-field (path tracing)

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.
Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.
static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Detailed Description

Implementation of OpenGl view.

Member Typedef Documentation

StateInfo

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

protected

main list of displayed structure, sorted by layers

Member Enumeration Documentation

PBREnvironmentState

enum OpenGl_View::PBREnvironmentState

protected

State of PBR environment.

Enumerator
OpenGl_PBREnvState_NONEXISTENT
OpenGl_PBREnvState_UNAVAILABLE
OpenGl_PBREnvState_CREATED

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_OutputImage
OpenGl_RT_VisualErrorImage
OpenGl_RT_TileOffsetsImage
OpenGl_RT_TileSamplesImage

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_uEnvMapEnabled
OpenGl_RT_uEnvMapForBack
OpenGl_RT_uTexSamplersArray
OpenGl_RT_uBlockedRngEnabled
OpenGl_RT_uWinSizeX
OpenGl_RT_uWinSizeY
OpenGl_RT_uAccumSamples
OpenGl_RT_uFrameRndSeed
OpenGl_RT_uFsaaOffset
OpenGl_RT_uSamples
OpenGl_RT_uRenderImage
OpenGl_RT_uTilesImage
OpenGl_RT_uOffsetImage
OpenGl_RT_uTileSize
OpenGl_RT_uVarianceScaleFactor
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< TopLoc_Datum3D > & 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.

BackgroundColor()

const Quantity_ColorRGBA & OpenGl_View::BackgroundColor ( ) const

inline

Returns background color.

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, int theStereoView )

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.

blitSubviews()

bool OpenGl_View::blitSubviews ( const Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer * theDrawFbo )

protected

Blit subviews into this view.

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 Graphic3d_CullingTool & 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.

ChangeGraduatedTrihedron()

OpenGl_GraduatedTrihedron & OpenGl_View::ChangeGraduatedTrihedron ( )

inline

Change graduated trihedron.

checkPBRAvailability()

Standard_Boolean OpenGl_View::checkPBRAvailability ( ) const

protected

Checks whether PBR is available.

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_Aspects * theAspect, const Handle< OpenGl_Context > & theGlContext )

protected

Creates ray-tracing material properties.

DepthPeelingFbos()

const Handle< OpenGl_DepthPeeling > & OpenGl_View::DepthPeelingFbos ( ) const

inline

Returns additional buffers for depth peeling OIT.

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.

Reimplemented in D3DHost_View.

drawBackground()

virtual void OpenGl_View::drawBackground ( const Handle< OpenGl_Workspace > & theWorkspace, Graphic3d_Camera::Projection theProjection )

protectedvirtual

Draw background (gradient / image / cubemap)

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.

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.

Reimplemented from Graphic3d_CView.

GraduatedTrihedronErase()

virtual void OpenGl_View::GraduatedTrihedronErase ( )

overridevirtual

Erases Graduated Trihedron.

Reimplemented from 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.

Reimplemented from 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, const TCollection_AsciiString & theName )

protected

Creates shader program from the given vertex and fragment shaders.

initRaytraceResources()

Standard_Boolean OpenGl_View::initRaytraceResources ( const Standard_Integer theSizeX, const Standard_Integer theSizeY, 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.

InsertLayerAfter()

virtual void OpenGl_View::InsertLayerAfter ( const Graphic3d_ZLayerId theNewLayerId, const Graphic3d_ZLayerSettings & theSettings, const Graphic3d_ZLayerId theLayerBefore )

overridevirtual

Add a layer to the view.

Parameters

theNewLayerId	[in] id of new layer, should be > 0 (negative values are reserved for default layers).
theSettings	[in] new layer settings
theLayerBefore	[in] id of layer to append new layer after

Implements Graphic3d_CView.

InsertLayerBefore()

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

overridevirtual

Add a layer to the view.

Parameters

theNewLayerId	[in] id of new layer, should be > 0 (negative values are reserved for default layers).
theSettings	[in] new layer settings
theLayerAfter	[in] id of layer to append new layer before

Implements Graphic3d_CView.

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.

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.

Layer()

virtual Handle< Graphic3d_Layer > OpenGl_View::Layer ( const Graphic3d_ZLayerId theLayerId ) const

overridevirtual

Returns layer with given ID or NULL if undefined.

Implements Graphic3d_CView.

LayerList()

const OpenGl_LayerList & OpenGl_View::LayerList ( ) const

inline

Returns list of OpenGL Z-layers.

Layers()

virtual const NCollection_List< Handle< Graphic3d_Layer > > & OpenGl_View::Layers ( ) const

overridevirtual

Returns the list of layers.

Implements Graphic3d_CView.

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.

MinMaxValues()

virtual Bnd_Box OpenGl_View::MinMaxValues ( const Standard_Boolean theToIncludeAuxiliary ) const

overridevirtual

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.

Parameters

theToIncludeAuxiliary

consider also auxiliary presentations (with infinite flag or with trihedron transformation persistence)

Returns

computed bounding box

Reimplemented from Graphic3d_CView.

prepareFrameBuffers()

virtual bool OpenGl_View::prepareFrameBuffers ( Graphic3d_Camera::Projection & theProj )

protectedvirtual

Prepare frame buffers for 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.

Reimplemented in D3DHost_View.

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.

Reimplemented in D3DHost_View.

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()

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

virtual

Release OpenGL resources.

Reimplemented in D3DHost_View.

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 prepared 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.

renderShadowMap()

virtual void OpenGl_View::renderShadowMap ( const Handle< OpenGl_ShadowMap > & theShadowMap )

protectedvirtual

Renders the graphical contents of the view into the prepared shadowmap framebuffer.

Parameters

theShadowMap

[in] the framebuffer for rendering shadowmap.

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.

Reimplemented in D3DHost_View.

runPathtrace()

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

protected

Runs path tracing (global illumination) kernel.

runPathtraceOut()

Standard_Boolean OpenGl_View::runPathtraceOut ( 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.

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 Handle< Graphic3d_TextureMap > & theTextureMap, Standard_Boolean theToUpdatePBREnv = Standard_True )

overridevirtual

Sets image texture or environment cubemap as background.

Parameters

theTextureMap	[in] source to set a background; should be either Graphic3d_Texture2D or Graphic3d_CubeMap
theToUpdatePBREnv	[in] defines whether IBL maps will be generated or not (see GeneratePBREnvironment())

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

)

SetClipPlanes()

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

inlineoverridevirtual

Sets list of clip planes for the view.

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.

SetImageBasedLighting()

virtual void OpenGl_View::SetImageBasedLighting ( Standard_Boolean theToEnableIBL )

overridevirtual

Enables or disables IBL (Image Based Lighting) from background cubemap. Has no effect if PBR is not used.

Parameters

[in]	theToEnableIBL	enable or disable IBL from background cubemap
[in]	theToUpdate	redraw the view

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< Graphic3d_CView > & theParentVIew, const Handle< Aspect_Window > & theWindow, const Aspect_RenderingContext theContext )

overridevirtual

Creates and maps rendering window to the view.

Implements Graphic3d_CView.

Reimplemented in D3DHost_View.

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.

ShadowMapDump()

virtual Standard_Boolean OpenGl_View::ShadowMapDump ( Image_PixMap & theImage, const TCollection_AsciiString & theLightName )

overridevirtual

Dumps the graphical contents of a shadowmap framebuffer into an image.

Parameters

theImage	the image to store the shadow map.
theLightName	[in] name of the light used to generate the shadow map.

Implements Graphic3d_CView.

SpecIBLMapLevels()

unsigned int OpenGl_View::SpecIBLMapLevels

(

)

const

Returns number of mipmap levels used in specular IBL map. 0 if PBR environment is not created.

StatisticInformation() [1/2]

virtual TCollection_AsciiString OpenGl_View::StatisticInformation ( ) const

overridevirtual

Returns string with statistic performance info.

Implements Graphic3d_CView.

StatisticInformation() [2/2]

virtual void OpenGl_View::StatisticInformation ( TColStd_IndexedDataMapOfStringString & theDict ) const

overridevirtual

Fills in the dictionary with statistic performance info.

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)

updatePBREnvironment()

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

protected

Generates IBL maps used in PBR pipeline. If background cubemap is not set clears all IBL maps.

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.

updateSkydomeBg()

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

protected

Generates skydome cubemap.

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

overridevirtual

Returns window associated with the view.

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).

track sRGB state

myBackgrounds

OpenGl_BackgroundArray* OpenGl_View::myBackgrounds[Graphic3d_TypeOfBackground_NB]

protected

Array of primitive arrays of different background types.

myBVHSelector

Graphic3d_CullingTool OpenGl_View::myBVHSelector

protected

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

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

myColoredQuadParams

OpenGl_Aspects* OpenGl_View::myColoredQuadParams

protected

Stores parameters for gradient (corner mode) background.

myCubeMapParams

OpenGl_Aspects* OpenGl_View::myCubeMapParams

protected

Stores cubemap and its parameters for cubemap background.

myCurrLightSourceState

Standard_Size OpenGl_View::myCurrLightSourceState

protected

main list of displayed structure, sorted by layers

myDepthPeelingFbos

Handle< OpenGl_DepthPeeling > OpenGl_View::myDepthPeelingFbos

protected

additional buffers for depth peeling

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

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).

track sRGB state

myGeometryNormalTexture

Handle< OpenGl_TextureBuffer > OpenGl_View::myGeometryNormalTexture

protected

Texture buffer of vertex normals.

myGeometryTexCrdTexture

Handle< OpenGl_TextureBuffer > OpenGl_View::myGeometryTexCrdTexture

protected

Texture buffer of vertex UV coords.

myGeometryTriangTexture

Handle< OpenGl_TextureBuffer > OpenGl_View::myGeometryTriangTexture

protected

Texture buffer of triangle indices.

myGeometryVertexTexture

Handle< OpenGl_TextureBuffer > 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).

track sRGB state

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.

myPBREnvironment

Handle< OpenGl_PBREnvironment > OpenGl_View::myPBREnvironment

protected

manager of IBL maps used in PBR pipeline

myPBREnvRequest

Standard_Boolean OpenGl_View::myPBREnvRequest

protected

update PBR environment

myPBREnvState

PBREnvironmentState OpenGl_View::myPBREnvState

protected

state of PBR environment

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).

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_TextureBuffer > OpenGl_View::myRaytraceLightSrcTexture

protected

Texture buffer of light source properties.

myRaytraceMaterialTexture

Handle< OpenGl_TextureBuffer > 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.

myRaytraceTileSamplesTexture

Handle< OpenGl_Texture > OpenGl_View::myRaytraceTileSamplesTexture[2]

protected

Texture containing amount of extra per-tile samples (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_TextureBuffer > OpenGl_View::mySceneMaxPointTexture

protected

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

mySceneMinPointTexture

Handle< OpenGl_TextureBuffer > OpenGl_View::mySceneMinPointTexture

protected

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

mySceneNodeInfoTexture

Handle< OpenGl_TextureBuffer > OpenGl_View::mySceneNodeInfoTexture

protected

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

mySceneTransformTexture

Handle< OpenGl_TextureBuffer > OpenGl_View::mySceneTransformTexture

protected

Texture buffer of transformations of high-level BVH nodes.

myShadowMaps

Handle< OpenGl_ShadowMapArray > OpenGl_View::myShadowMaps

protected

additional FBOs for shadow map rendering

mySkydomeTexture

Handle< OpenGl_Texture > OpenGl_View::mySkydomeTexture

protected

Stores texture and its parameters for textured background.

mySRgbState

Standard_Integer OpenGl_View::mySRgbState

protected

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

track sRGB state

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

Stores texture and its parameters for textured background.

myTextureParams

OpenGl_Aspects* 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

myXrSceneFbo

Handle< OpenGl_FrameBuffer > OpenGl_View::myXrSceneFbo

protected

additional FBO (without MSAA) for submitting to XR

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.

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

• OpenGl_View.hxx