OpenGl_View Class Reference

Implementation of OpenGl view. More...

#include <OpenGl_View.hxx>

Inheritance diagram for OpenGl_View:

Data Structures
class	ShaderSource
	Tool class for management of shader sources. More...
struct	RaytracingParams
	Compile-time ray-tracing parameters. More...
struct	StructState
	Describes state of OpenGL structure. More...

Public Member Functions
	OpenGl_View (const occ::handle< Graphic3d_StructureManager > &theMgr, const occ::handle< OpenGl_GraphicDriver > &theDriver, const occ::handle< OpenGl_Caps > &theCaps, OpenGl_StateCounter *theCounter)
	Constructor.
	~OpenGl_View () override
	Default destructor.
virtual void	ReleaseGlResources (const occ::handle< OpenGl_Context > &theCtx)
	Release OpenGL resources.
void	Remove () override
	Deletes and erases the view.
bool	SetImmediateModeDrawToFront (const bool theDrawToFrontBuffer) override
void	SetWindow (const occ::handle< Graphic3d_CView > &theParentVIew, const occ::handle< Aspect_Window > &theWindow, const Aspect_RenderingContext theContext) override
	Creates and maps rendering window to the view.
occ::handle< Aspect_Window >	Window () const override
	Returns window associated with the view.
bool	IsDefined () const override
	Returns True if the window associated to the view is defined.
void	Resized () override
	Handle changing size of the rendering window.
void	Redraw () override
	Redraw content of the view.
void	RedrawImmediate () override
	Redraw immediate content of the view.
void	Invalidate () override
	Marks BVH tree for given priority list as dirty and marks primitive set for rebuild.
bool	IsInvalidated () override
	Return true if view content cache has been invalidated.
bool	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.
bool	ShadowMapDump (Image_PixMap &theImage, const TCollection_AsciiString &theLightName) override
	Dumps the graphical contents of a shadowmap framebuffer into an image.
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	Marks BVH tree and the set of BVH primitives of correspondent priority list with id theLayerId as outdated.
void	InsertLayerBefore (const Graphic3d_ZLayerId theLayerId, const Graphic3d_ZLayerSettings &theSettings, const Graphic3d_ZLayerId theLayerAfter) override
	Add a layer to the view.
void	InsertLayerAfter (const Graphic3d_ZLayerId theNewLayerId, const Graphic3d_ZLayerSettings &theSettings, const Graphic3d_ZLayerId theLayerBefore) override
	Add a layer to the view.
void	RemoveZLayer (const Graphic3d_ZLayerId theLayerId) override
	Remove a z layer with the given ID.
void	SetZLayerSettings (const Graphic3d_ZLayerId theLayerId, const Graphic3d_ZLayerSettings &theSettings) override
	Sets the settings for a single Z layer of specified view.
int	ZLayerMax () const override
	Returns the maximum Z layer ID. First layer ID is Graphic3d_ZLayerId_Default, last ID is ZLayerMax().
const NCollection_List< occ::handle< Graphic3d_Layer > > &	Layers () const override
	Returns the list of layers.
occ::handle< Graphic3d_Layer >	Layer (const Graphic3d_ZLayerId theLayerId) const override
	Returns layer with given ID or NULL if undefined.
Bnd_Box	MinMaxValues (const bool 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.
void	ZFitAllBounds (Bnd_Box &thePrimaryBox, Bnd_Box &theGraphicBox) const override
	Return primary and graphical bounding boxes used by camera Z fitting.
occ::handle< Standard_Transient >	FBO () const override
	Returns pointer to an assigned framebuffer object.
void	SetFBO (const occ::handle< Standard_Transient > &theFbo) override
	Sets framebuffer object for offscreen rendering.
occ::handle< Standard_Transient >	FBOCreate (const int theWidth, const int theHeight) override
	Generate offscreen FBO in the graphic library. If not supported on hardware returns NULL.
void	FBORelease (occ::handle< Standard_Transient > &theFbo) override
	Remove offscreen FBO from the graphic library.
void	FBOGetDimensions (const occ::handle< Standard_Transient > &theFbo, int &theWidth, int &theHeight, int &theWidthMax, int &theHeightMax) override
	Read offscreen FBO configuration.
void	FBOChangeViewport (const occ::handle< Standard_Transient > &theFbo, const int theWidth, const int theHeight) override
	Change offscreen FBO viewport.
const occ::handle< OpenGl_DepthPeeling > &	DepthPeelingFbos () const
	Returns additional buffers for depth peeling OIT.
Aspect_GradientBackground	GradientBackground () const override
	Returns gradient background fill colors.
void	SetGradientBackground (const Aspect_GradientBackground &theBackground) override
	Sets gradient background fill colors.
void	SetBackgroundImage (const occ::handle< Graphic3d_TextureMap > &theTextureMap, bool theToUpdatePBREnv=true) override
	Sets image texture or environment cubemap as background.
void	SetTextureEnv (const occ::handle< Graphic3d_TextureEnv > &theTextureEnv) override
	Sets environment texture for the view.
Aspect_FillMethod	BackgroundImageStyle () const override
	Returns background image fill style.
void	SetBackgroundImageStyle (const Aspect_FillMethod theFillStyle) override
	Sets background image fill style.
void	SetImageBasedLighting (bool theToEnableIBL) override
	Enables or disables IBL (Image Based Lighting) from background cubemap. Has no effect if PBR is not used.
void	GridDisplay (const Aspect_GridParams &theParams, const gp_Ax3 &thePlane) override
	Display a shader-rendered grid on the given plane.
void	GridErase () override
	Erase the shader-rendered grid.
bool	ShaderGridEcho (const int theX, const int theY, Graphic3d_Vertex &thePoint) const override
	Return snapped point for the shader-rendered grid under the window pixel.
bool	ShaderGridEcho (const int theX, const int theY, Graphic3d_Vertex &thePoint, Graphic3d_Vertex &theDisplayPoint) const override
	Return snapped point and clip-safe display point for the shader-rendered grid echo marker.
bool	ShaderGridSnapPoint (const Graphic3d_Vertex &thePoint, Graphic3d_Vertex &theGridPoint) const override
	Return snapped point for the shader-rendered grid from an arbitrary world point.
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.
const occ::handle< Graphic3d_LightSet > &	Lights () const override
	Returns list of lights of the view.
void	SetLights (const occ::handle< Graphic3d_LightSet > &theLights) override
	Sets list of lights for the view.
const occ::handle< Graphic3d_SequenceOfHClipPlane > &	ClipPlanes () const override
	Returns list of clip planes set for the view.
void	SetClipPlanes (const occ::handle< Graphic3d_SequenceOfHClipPlane > &thePlanes) override
	Sets list of clip planes for the view.
void	DiagnosticInformation (NCollection_IndexedDataMap< TCollection_AsciiString, TCollection_AsciiString > &theDict, Graphic3d_DiagnosticInfo theFlags) const override
	Fill in the dictionary with diagnostic info. Should be called within rendering thread.
TCollection_AsciiString	StatisticInformation () const override
	Returns string with statistic performance info.
void	StatisticInformation (NCollection_IndexedDataMap< TCollection_AsciiString, TCollection_AsciiString > &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 occ::handle< OpenGl_Context > &theCtx, const occ::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 occ::handle< OpenGl_Window > &	GlWindow () const
	Returns OpenGL window implementation.
const occ::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
Displays Graduated Trihedron.
void	GraduatedTrihedronDisplay (const Graphic3d_GraduatedTrihedron &theTrihedronData) override
	Erases Graduated Trihedron.
void	GraduatedTrihedronErase () override
	Erases Graduated Trihedron.
void	GraduatedTrihedronMinMaxValues (const NCollection_Vec3< float > theMin, const NCollection_Vec3< float > theMax) override
	Sets minimum and maximum points of scene bounding box for Graduated Trihedron stored in graphic view object.
bool	ToFlipOutput () const override
	Returns necessity to flip OY in projection matrix.
void	SetToFlipOutput (const bool theFlip) override
	Sets state of flip OY necessity in projection matrix.
Public Member Functions inherited from Graphic3d_CView
	Graphic3d_CView (const occ::handle< Graphic3d_StructureManager > &theMgr)
	Constructor.
	~Graphic3d_CView () override
	Destructor.
int	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().
bool	IsActive () const
	Returns the activity flag of the view.
bool	IsRemoved () const
	Returns true if the view was removed.
const occ::handle< Graphic3d_Camera > &	Camera () const override
	Returns camera object of the view.
virtual void	SetCamera (const occ::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.
bool	ZLayerRedrawMode () const
	Returns ZLayerId redraw mode.
void	SetZLayerRedrawMode (const bool theMode)
	Sets ZLayerId redraw mode.
void	SetComputedMode (const bool theMode)
	Switches computed HLR mode in the view.
bool	ComputedMode () const
	Returns the computed HLR mode state.
void	ReCompute (const occ::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 (NCollection_Map< occ::handle< Graphic3d_Structure > > &theStructures) const
	Returns the set of structures displayed in this view.
virtual int	NumberOfDisplayedStructures () const
	Returns number of displayed structures in the view.
bool	IsComputed (const int theStructId, occ::handle< Graphic3d_Structure > &theComputedStruct) const
	Returns 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 NCollection_Map< occ::handle< Graphic3d_Structure > > &theSet, const bool theToIncludeAuxiliary=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 occ::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.
double	ConsiderZoomPersistenceObjects ()
	Returns zoom-scale factor.
virtual void	CopySettings (const occ::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 occ::handle< Graphic3d_TextureMap > &	BackgroundImage ()
	Returns background image texture map.
const occ::handle< Graphic3d_CubeMap > &	BackgroundCubeMap () const
	Returns cubemap being set last time on background.
const occ::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, bool theToUpdatePBREnv=true)
	Sets skydome aspect.
const occ::handle< Graphic3d_TextureEnv > &	TextureEnv () const
	Returns environment texture set for the view.
double	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 (double theFactor)
	Set unit scale factor.
const occ::handle< Aspect_XRSession > &	XRSession () const
	Return XR session.
void	SetXRSession (const occ::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 occ::handle< Graphic3d_Camera > &	PosedXRCamera () const
	Returns transient XR camera position with tracked head orientation applied.
void	SetPosedXRCamera (const occ::handle< Graphic3d_Camera > &theCamera)
	Sets transient XR camera position with tracked head orientation applied.
const occ::handle< Graphic3d_Camera > &	BaseXRCamera () const
	Returns anchor camera definition (without tracked head orientation).
void	SetBaseXRCamera (const occ::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 ()
	Displays Graduated Trihedron.
void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const override
	Dumps the content of me into the stream.
bool	IsSubview () const
	list of child views
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< occ::handle< Graphic3d_CView > > &	Subviews () const
	Return subview list.
void	AddSubview (const occ::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 NCollection_Vec2< int > &	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 NCollection_Vec2< double > &	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 NCollection_Vec2< double > &theSize)
	Set subview size relative to parent view.
const NCollection_Vec2< double > &	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 NCollection_Vec2< double > &theOffset)
	Set corner offset within parent view.
const NCollection_Vec2< int > &	SubviewMargins () const
	Return subview margins in pixels; (0,0) by default.
void	SetSubviewMargins (const NCollection_Vec2< int > &theMargins)
	Set subview margins in pixels.
void	SubviewResized (const occ::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 ()=default
	Destructor must be virtual.
virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.
bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.
bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.
bool	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.
bool	IsKind (const char *const 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.
int	GetRefCount () const noexcept
	Get the reference counter of this object.
void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.
int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.
virtual void	Delete () const
	Memory deallocator for transient classes.

Protected Member Functions
Internal methods for managing GL resources
Initializes OpenGl resource for environment texture.
void	initTextureEnv (const occ::handle< OpenGl_Context > &theContext)
low-level redrawing sub-routines
Prepare frame buffers for rendering.
virtual bool	prepareFrameBuffers (Graphic3d_Camera::Projection &theProj)
	Redraws view for the given monographic camera projection, or left/right eye.
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 bool theIsPartialUpdate=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 bool theToFlip=false)
	Blit image from/to specified buffers.
void	bindDefaultFbo (OpenGl_FrameBuffer *theCustomFbo=nullptr)
	Setup default FBO.
methods related to skydome background
Generates skydome cubemap.
void	updateSkydomeBg (const occ::handle< OpenGl_Context > &theCtx)
methods related to PBR
Checks whether PBR is available.
bool	checkPBRAvailability () const
	Generates IBL maps used in PBR pipeline. If background cubemap is not set clears all IBL maps.
void	updatePBREnvironment (const occ::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
Updates 3D scene geometry for ray-tracing.
bool	updateRaytraceGeometry (const RaytraceUpdateMode theMode, const int theViewId, const occ::handle< OpenGl_Context > &theGlContext)
	Updates 3D scene light sources for ray-tracing.
bool	updateRaytraceLightSources (const NCollection_Mat4< float > &theInvModelView, const occ::handle< OpenGl_Context > &theGlContext)
	Updates 3D scene light sources for ray-tracing.
bool	toUpdateStructure (const OpenGl_Structure *theStructure)
	Checks to see if the OpenGL structure is modified.
bool	addRaytraceStructure (const OpenGl_Structure *theStructure, const occ::handle< OpenGl_Context > &theGlContext)
	Adds OpenGL structure to ray-traced scene geometry.
bool	addRaytraceGroups (const OpenGl_Structure *theStructure, const OpenGl_RaytraceMaterial &theStructMat, const occ::handle< TopLoc_Datum3D > &theTrsf, const occ::handle< OpenGl_Context > &theGlContext)
	Adds OpenGL groups to ray-traced scene geometry.
OpenGl_RaytraceMaterial	convertMaterial (const OpenGl_Aspects *theAspect, const occ::handle< OpenGl_Context > &theGlContext)
	Creates ray-tracing material properties.
occ::handle< OpenGl_TriangleSet >	addRaytracePrimitiveArray (const OpenGl_PrimitiveArray *theArray, const int theMatID, const NCollection_Mat4< float > *theTrans)
	Adds OpenGL primitive array to ray-traced scene geometry.
bool	addRaytraceVertexIndices (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const OpenGl_PrimitiveArray &theArray)
	Adds vertex indices from OpenGL primitive array to ray-traced scene geometry.
bool	addRaytraceTriangleArray (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL triangle array to ray-traced scene geometry.
bool	addRaytraceTriangleFanArray (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL triangle fan array to ray-traced scene geometry.
bool	addRaytraceTriangleStripArray (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL triangle strip array to ray-traced scene geometry.
bool	addRaytraceQuadrangleArray (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL quadrangle array to ray-traced scene geometry.
bool	addRaytraceQuadrangleStripArray (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL quadrangle strip array to ray-traced scene geometry.
bool	addRaytracePolygonArray (OpenGl_TriangleSet &theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > &theIndices)
	Adds OpenGL polygon array to ray-traced scene geometry.
bool	uploadRaytraceData (const occ::handle< OpenGl_Context > &theGlContext)
	Uploads ray-trace data to the GPU.
TCollection_AsciiString	generateShaderPrefix (const occ::handle< OpenGl_Context > &theGlContext) const
	Generates shader prefix based on current ray-tracing options.
bool	safeFailBack (const TCollection_ExtendedString &theMessage, const occ::handle< OpenGl_Context > &theGlContext)
	Performs safe exit when shaders initialization fails.
occ::handle< OpenGl_ShaderObject >	initShader (const GLenum theType, const ShaderSource &theSource, const occ::handle< OpenGl_Context > &theGlContext)
	Loads and compiles shader object from specified source.
occ::handle< OpenGl_ShaderProgram >	initProgram (const occ::handle< OpenGl_Context > &theGlContext, const occ::handle< OpenGl_ShaderObject > &theVertShader, const occ::handle< OpenGl_ShaderObject > &theFragShader, const TCollection_AsciiString &theName)
	Creates shader program from the given vertex and fragment shaders.
bool	initRaytraceResources (const int theSizeX, const int theSizeY, const occ::handle< OpenGl_Context > &theGlContext)
	Initializes OpenGL/GLSL shader programs.
void	releaseRaytraceResources (const occ::handle< OpenGl_Context > &theGlContext, const bool theToRebuild=false)
	Releases OpenGL/GLSL shader programs.
bool	updateRaytraceBuffers (const int theSizeX, const int theSizeY, const occ::handle< OpenGl_Context > &theGlContext)
	Updates auxiliary OpenGL frame buffers.
void	updateCamera (const NCollection_Mat4< float > &theOrientation, const NCollection_Mat4< float > &theViewMapping, NCollection_Vec3< float > *theOrigins, NCollection_Vec3< float > *theDirects, NCollection_Mat4< float > &theView, NCollection_Mat4< float > &theUnView)
	Generates viewing rays for corners of screen quad. (ray tracing; path tracing for orthographic camera).
void	updatePerspCameraPT (const NCollection_Mat4< float > &theOrientation, const NCollection_Mat4< float > &theViewMapping, Graphic3d_Camera::Projection theProjection, NCollection_Mat4< float > &theViewPr, NCollection_Mat4< float > &theUnview, const int theWinSizeX, const int theWinSizeY)
	Generate viewing rays (path tracing, perspective camera).
void	bindRaytraceTextures (const occ::handle< OpenGl_Context > &theGlContext, int theStereoView)
	Binds ray-trace textures to corresponding texture units.
void	unbindRaytraceTextures (const occ::handle< OpenGl_Context > &theGlContext)
	Unbinds ray-trace textures from corresponding texture unit.
bool	setUniformState (const int theProgramId, const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, const occ::handle< OpenGl_Context > &theGlContext)
	Sets uniform state for the given ray-tracing shader program.
bool	runRaytraceShaders (const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const occ::handle< OpenGl_Context > &theGlContext)
	Runs ray-tracing shader programs.
bool	runRaytrace (const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const occ::handle< OpenGl_Context > &theGlContext)
	Runs classical (Whitted-style) ray-tracing kernel.
bool	runPathtrace (const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, const occ::handle< OpenGl_Context > &theGlContext)
	Runs path tracing (global illumination) kernel.
bool	runPathtraceOut (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const occ::handle< OpenGl_Context > &theGlContext)
	Runs path tracing (global illumination) kernel.
bool	raytrace (const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, const occ::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
Two framebuffers (left and right views) store cached main presentation of the view (without presentation of immediate layers).
int	mySRgbState
	track sRGB state
GLint	myFboColorFormat
	sized format for color attachments
GLint	myFboDepthFormat
	sized format for depth-stencil attachments
NCollection_DynamicArray< int >	myFboOitColorConfig
	selected color format configuration for OIT color attachments
occ::handle< OpenGl_FrameBuffer >	myMainSceneFbos [2]
	track sRGB state
occ::handle< OpenGl_FrameBuffer >	myMainSceneFbosOit [2]
	Additional buffers for transparent draw of main layer.
occ::handle< OpenGl_FrameBuffer >	myImmediateSceneFbos [2]
	Additional buffers for immediate layer in stereo mode.
occ::handle< OpenGl_FrameBuffer >	myImmediateSceneFbosOit [2]
	Additional buffers for transparency draw of immediate layer.
occ::handle< OpenGl_FrameBuffer >	myXrSceneFbo
	additional FBO (without MSAA) for submitting to XR
occ::handle< OpenGl_DepthPeeling >	myDepthPeelingFbos
	additional buffers for depth peeling
occ::handle< OpenGl_ShadowMapArray >	myShadowMaps
	additional FBOs for shadow map rendering
OpenGl_VertexBuffer	myFullScreenQuad
	Vertices for full-screen quad rendering.
OpenGl_VertexBuffer	myFullScreenQuadFlip
	track sRGB state
bool	myToFlipOutput
	Flag to draw result image upside-down.
unsigned int	myFrameCounter
	redraw counter, for debugging
bool	myHasFboBlit
	disable FBOs on failure
bool	myToDisableOIT
	disable OIT on failure
bool	myToDisableOITMSAA
	disable OIT with MSAA on failure
bool	myToDisableMSAA
	disable MSAA after failure
bool	myTransientDrawToFront
	optimization flag for immediate mode (to render directly to the front buffer)
bool	myBackBufferRestored
	track sRGB state
bool	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_ShaderGrid	myShaderGrid
	shader grid state and geometry model
unsigned int	myGridVao
	dedicated VAO for textureless grid draw
OpenGl_BackgroundArray *	myBackgrounds [Graphic3d_TypeOfBackground_NB]
	Array of primitive arrays of different background types.
occ::handle< OpenGl_TextureSet >	myTextureEnv
	Stores texture and its parameters for textured background.
occ::handle< OpenGl_Texture >	mySkydomeTexture
	Stores texture and its parameters for textured background.
int	myId
	list of child views
Graphic3d_RenderingParams	myRenderParams
	list of child views
NCollection_Sequence< occ::handle< Graphic3d_CView > >	mySubviews
	list of child views
Graphic3d_CView *	myParentView
	back-pointer to the parent view
bool	myIsSubviewComposer
	flag to skip rendering of viewer contents
Aspect_TypeOfTriedronPosition	mySubviewCorner
	position within parent view
NCollection_Vec2< int >	mySubviewTopLeft
	subview top-left position relative to parent view
NCollection_Vec2< int >	mySubviewMargins
	subview margins in pixels
NCollection_Vec2< double >	mySubviewSize
	subview size
NCollection_Vec2< double >	mySubviewOffset
	subview corner offset within parent view
occ::handle< Graphic3d_StructureManager >	myStructureManager
	list of child views
occ::handle< Graphic3d_Camera >	myCamera
	list of child views
NCollection_Sequence< occ::handle< Graphic3d_Structure > >	myStructsToCompute
	list of child views
NCollection_Sequence< occ::handle< Graphic3d_Structure > >	myStructsComputed
	list of child views
NCollection_Map< occ::handle< Graphic3d_Structure > >	myStructsDisplayed
	list of child views
bool	myIsInComputedMode
	list of child views
bool	myIsActive
	list of child views
bool	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.
bool	myZLayerRedrawMode
	If true redraws single layer, otherwise redraws group of layers.
Quantity_ColorRGBA	myBgColor
	list of child views
occ::handle< Graphic3d_TextureMap >	myBackgroundImage
	list of child views
occ::handle< Graphic3d_CubeMap >	myCubeMapBackground
	Cubemap displayed at background.
occ::handle< Graphic3d_CubeMap >	myCubeMapIBL
	Cubemap used for environment lighting.
occ::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
bool	myToUpdateSkydome
	list of child views
occ::handle< Aspect_XRSession >	myXRSession
	list of child views
occ::handle< Graphic3d_Camera >	myBackXRCamera
	camera projection parameters to restore after closing XR session (FOV, aspect and similar)
occ::handle< Graphic3d_Camera >	myBaseXRCamera
	neutral camera orientation defining coordinate system in which head tracking is defined
occ::handle< Graphic3d_Camera >	myPosedXRCamera
	transient XR camera orientation with tracked head orientation applied (based on myBaseXRCamera)
occ::handle< Graphic3d_Camera >	myPosedXRCameraCopy
	neutral camera orientation copy at the beginning of processing input
double	myUnitFactor
	unit scale factor defined as scale factor for m (meters)

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

data types related to ray-tracing
Result of OpenGL shaders initialization.
enum	RaytraceInitStatus { OpenGl_RT_NONE , OpenGl_RT_INIT , OpenGl_RT_FAIL }
	Describes update mode (state). 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 constexpr int	THE_DEFAULT_NB_BOUNCES = 3
	Default ray-tracing depth.
static constexpr int	THE_DEFAULT_STACK_SIZE = 10
	Default size of traversal stack.

Rendering of GL graphics (with prepared drawing buffer).
Renders the graphical contents of the view into the prepared shadowmap framebuffer. Parameters [in] theShadowMap the framebuffer for rendering shadowmap.
typedef std::pair< size_t, size_t >	StateInfo
	main list of displayed structure, sorted by layers
OpenGl_GraphicDriver *	myDriver
	main list of displayed structure, sorted by layers
occ::handle< OpenGl_Window >	myWindow
	main list of displayed structure, sorted by layers
occ::handle< OpenGl_Workspace >	myWorkspace
	main list of displayed structure, sorted by layers
occ::handle< OpenGl_Caps >	myCaps
	main list of displayed structure, sorted by layers
bool	myWasRedrawnGL
	main list of displayed structure, sorted by layers
occ::handle< Graphic3d_SequenceOfHClipPlane >	myClipPlanes
	main list of displayed structure, sorted by layers
gp_XYZ	myLocalOrigin
	main list of displayed structure, sorted by layers
occ::handle< OpenGl_FrameBuffer >	myFBO
	main list of displayed structure, sorted by layers
bool	myToShowGradTrihedron
	main list of displayed structure, sorted by layers
Graphic3d_GraduatedTrihedron	myGTrihedronData
	main list of displayed structure, sorted by layers
occ::handle< Graphic3d_LightSet >	myNoShadingLight
	main list of displayed structure, sorted by layers
occ::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
size_t	myCurrLightSourceState
	main list of displayed structure, sorted by layers
size_t	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
occ::handle< OpenGl_FrameBuffer >	myOpenGlFBO
	Framebuffers for OpenGL output.
occ::handle< OpenGl_FrameBuffer >	myOpenGlFBO2
	main list of displayed structure, sorted by layers
virtual void	renderShadowMap (const occ::handle< OpenGl_ShadowMap > &theShadowMap)
	main list of displayed structure, sorted by layers
virtual void	render (Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer *theReadDrawFbo, OpenGl_FrameBuffer *theOitAccumFbo, const bool 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 bool theToDrawImmediate)
	Renders the graphical scene.
virtual void	drawBackground (const occ::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 bool theToDrawImmediate)
	Render set of structures presented in the view.
void	renderTrihedron (const occ::handle< OpenGl_Workspace > &theWorkspace)
	Renders trihedron.
void	renderFrameStats ()
	Renders frame statistics.
void	renderGrid ()
	Render the shader-based grid. No-op unless GridDisplay() has been called and the GAPI supports the grid shader.

fields related to ray-tracing
Result of RT/PT shaders initialization.
RaytraceInitStatus	myRaytraceInitStatus
	Is ray-tracing geometry data valid?
bool	myIsRaytraceDataValid
	Is ray-tracing geometry data valid?
bool	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< float, 3 > >	myRaytraceBVHBuilder
	Builder for triangle set.
RaytracingParams	myRaytraceParameters
	Compile-time ray-tracing parameters.
float	myRaytraceSceneRadius
	Radius of bounding sphere of the scene.
float	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.
occ::handle< OpenGl_ShaderObject >	myRaytraceShader
	OpenGL/GLSL ray-tracing fragment shader.
occ::handle< OpenGl_ShaderObject >	myPostFSAAShader
	OpenGL/GLSL adaptive-AA fragment shader.
occ::handle< OpenGl_ShaderObject >	myOutImageShader
	OpenGL/GLSL ray-tracing display fragment shader.
occ::handle< OpenGl_ShaderProgram >	myRaytraceProgram
	OpenGL/GLSL ray-tracing shader program.
occ::handle< OpenGl_ShaderProgram >	myPostFSAAProgram
	OpenGL/GLSL adaptive-AA shader program.
occ::handle< OpenGl_ShaderProgram >	myOutImageProgram
	OpenGL/GLSL program for displaying texture.
occ::handle< OpenGl_TextureBuffer >	mySceneNodeInfoTexture
	Texture buffer of data records of bottom-level BVH nodes.
occ::handle< OpenGl_TextureBuffer >	mySceneMinPointTexture
	Texture buffer of minimum points of bottom-level BVH nodes.
occ::handle< OpenGl_TextureBuffer >	mySceneMaxPointTexture
	Texture buffer of maximum points of bottom-level BVH nodes.
occ::handle< OpenGl_TextureBuffer >	mySceneTransformTexture
	Texture buffer of transformations of high-level BVH nodes.
occ::handle< OpenGl_TextureBuffer >	myGeometryVertexTexture
	Texture buffer of vertex coords.
occ::handle< OpenGl_TextureBuffer >	myGeometryNormalTexture
	Texture buffer of vertex normals.
occ::handle< OpenGl_TextureBuffer >	myGeometryTexCrdTexture
	Texture buffer of vertex UV coords.
occ::handle< OpenGl_TextureBuffer >	myGeometryTriangTexture
	Texture buffer of triangle indices.
occ::handle< OpenGl_TextureBuffer >	myRaytraceMaterialTexture
	Texture buffer of material properties.
occ::handle< OpenGl_TextureBuffer >	myRaytraceLightSrcTexture
	Texture buffer of light source properties.
occ::handle< OpenGl_FrameBuffer >	myRaytraceFBO1 [2]
	1st framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling).
occ::handle< OpenGl_FrameBuffer >	myRaytraceFBO2 [2]
	2nd framebuffer (FBO) to perform adaptive FSAA. Used in compatibility mode (no adaptive sampling).
occ::handle< OpenGl_Texture >	myRaytraceOutputTexture [2]
	Output textures (2 textures are used in stereo mode). Used if adaptive screen sampling is activated.
occ::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.
occ::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.
occ::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.
int	myUniformLocations [2][OpenGl_RT_NbVariables]
	Cached locations of frequently used uniform variables.
NCollection_DataMap< const OpenGl_Structure *, StructState >	myStructureStates
	State of OpenGL structures reflected to ray-tracing.
NCollection_DataMap< size_t, OpenGl_TriangleSet * >	myArrayToTrianglesMap
	PrimitiveArray to TriangleSet map for scene partial update.
NCollection_Map< int >	myNonRaytraceStructureIDs
	Set of IDs of non-raytracable elements (to detect updates).
bool	myToUpdateEnvironmentMap
	Marks if environment map should be updated.
size_t	myRaytraceLayerListState
	State of OpenGL layer list.
int	myAccumFrames
	Number of accumulated frames (for progressive rendering).
NCollection_Vec3< float >	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.
NCollection_Vec3< float >	myEyeOrig
	Camera position used for projective mode.
NCollection_Vec3< float >	myEyeView
	Camera view direction used for projective mode.
NCollection_Vec3< float >	myEyeVert
	Camera's screen vertical direction used for projective mode.
NCollection_Vec3< float >	myEyeSide
	Camera's screen horizontal direction used for projective mode.
NCollection_Vec2< float >	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
typedef void	base_type
	Returns a type descriptor about this object.
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

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

protected

main list of displayed structure, sorted by layers

Member Enumeration Documentation

PBREnvironmentState

enum OpenGl_View::PBREnvironmentState

protected

manager of IBL maps used in PBR pipeline

Enumerator
OpenGl_PBREnvState_NONEXISTENT
OpenGl_PBREnvState_UNAVAILABLE
OpenGl_PBREnvState_CREATED

RaytraceInitStatus

enum OpenGl_View::RaytraceInitStatus

protected

Describes update mode (state).

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 occ::handle< Graphic3d_StructureManager > &	theMgr,
		const occ::handle< OpenGl_GraphicDriver > &	theDriver,
		const occ::handle< OpenGl_Caps > &	theCaps,
		OpenGl_StateCounter *	theCounter )

Constructor.

~OpenGl_View()

OpenGl_View::~OpenGl_View ( )

override

Default destructor.

Member Function Documentation

addRaytraceGroups()

bool OpenGl_View::addRaytraceGroups ( const OpenGl_Structure * theStructure, const OpenGl_RaytraceMaterial & theStructMat, const occ::handle< TopLoc_Datum3D > & theTrsf, const occ::handle< OpenGl_Context > & theGlContext )

protected

Adds OpenGL groups to ray-traced scene geometry.

addRaytracePolygonArray()

bool OpenGl_View::addRaytracePolygonArray ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > & theIndices )

protected

Adds OpenGL polygon array to ray-traced scene geometry.

addRaytracePrimitiveArray()

occ::handle< OpenGl_TriangleSet > OpenGl_View::addRaytracePrimitiveArray ( const OpenGl_PrimitiveArray * theArray, const int theMatID, const NCollection_Mat4< float > * theTrans )

protected

Adds OpenGL primitive array to ray-traced scene geometry.

addRaytraceQuadrangleArray()

bool OpenGl_View::addRaytraceQuadrangleArray ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > & theIndices )

protected

Adds OpenGL quadrangle array to ray-traced scene geometry.

addRaytraceQuadrangleStripArray()

bool OpenGl_View::addRaytraceQuadrangleStripArray ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > & theIndices )

protected

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

addRaytraceStructure()

bool OpenGl_View::addRaytraceStructure ( const OpenGl_Structure * theStructure, const occ::handle< OpenGl_Context > & theGlContext )

protected

Adds OpenGL structure to ray-traced scene geometry.

addRaytraceTriangleArray()

bool OpenGl_View::addRaytraceTriangleArray ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > & theIndices )

protected

Adds OpenGL triangle array to ray-traced scene geometry.

addRaytraceTriangleFanArray()

bool OpenGl_View::addRaytraceTriangleFanArray ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > & theIndices )

protected

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

addRaytraceTriangleStripArray()

bool OpenGl_View::addRaytraceTriangleStripArray ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int theOffset, const occ::handle< Graphic3d_IndexBuffer > & theIndices )

protected

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

addRaytraceVertexIndices()

bool OpenGl_View::addRaytraceVertexIndices ( OpenGl_TriangleSet & theSet, const int theMatID, const int theCount, const int 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()

Aspect_FillMethod OpenGl_View::BackgroundImageStyle ( ) const

overridevirtual

Returns background image fill style.

Implements Graphic3d_CView.

bindDefaultFbo()

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

protected

Setup default FBO.

bindRaytraceTextures()

void OpenGl_View::bindRaytraceTextures ( const occ::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 bool theToFlip = 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()

bool 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()

bool OpenGl_View::checkPBRAvailability ( ) const

protected

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

ClipPlanes()

const occ::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 occ::handle< OpenGl_Context > & theGlContext )

protected

Creates ray-tracing material properties.

DepthPeelingFbos()

const occ::handle< OpenGl_DepthPeeling > & OpenGl_View::DepthPeelingFbos ( ) const

inline

Returns additional buffers for depth peeling OIT.

DiagnosticInformation()

void OpenGl_View::DiagnosticInformation ( NCollection_IndexedDataMap< TCollection_AsciiString, TCollection_AsciiString > & theDict, Graphic3d_DiagnosticInfo theFlags ) const

overridevirtual

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

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

Implements Graphic3d_CView.

drawBackground()

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

protectedvirtual

Draw background (gradient / image / cubemap).

FBO()

occ::handle< Standard_Transient > OpenGl_View::FBO ( ) const

overridevirtual

Returns pointer to an assigned framebuffer object.

Implements Graphic3d_CView.

FBOChangeViewport()

void OpenGl_View::FBOChangeViewport ( const occ::handle< Standard_Transient > & theFbo, const int theWidth, const int theHeight )

overridevirtual

Change offscreen FBO viewport.

Implements Graphic3d_CView.

FBOCreate()

occ::handle< Standard_Transient > OpenGl_View::FBOCreate ( const int theWidth, const int theHeight )

overridevirtual

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

Implements Graphic3d_CView.

FBOGetDimensions()

void OpenGl_View::FBOGetDimensions ( const occ::handle< Standard_Transient > & theFbo, int & theWidth, int & theHeight, int & theWidthMax, int & theHeightMax )

overridevirtual

Read offscreen FBO configuration.

Implements Graphic3d_CView.

FBORelease()

void OpenGl_View::FBORelease ( occ::handle< Standard_Transient > & theFbo )

overridevirtual

Remove offscreen FBO from the graphic library.

Implements Graphic3d_CView.

generateShaderPrefix()

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

protected

Generates shader prefix based on current ray-tracing options.

GlTextureEnv()

const occ::handle< OpenGl_TextureSet > & OpenGl_View::GlTextureEnv ( ) const

inline

Returns OpenGL environment map.

GlWindow()

const occ::handle< OpenGl_Window > & OpenGl_View::GlWindow ( ) const

inline

Returns OpenGL window implementation.

GradientBackground()

Aspect_GradientBackground OpenGl_View::GradientBackground ( ) const

overridevirtual

Returns gradient background fill colors.

Implements Graphic3d_CView.

GraduatedTrihedronDisplay()

void OpenGl_View::GraduatedTrihedronDisplay ( const Graphic3d_GraduatedTrihedron & theTrihedronData )

overridevirtual

Erases Graduated Trihedron.

Reimplemented from Graphic3d_CView.

GraduatedTrihedronErase()

void OpenGl_View::GraduatedTrihedronErase ( )

overridevirtual

Erases Graduated Trihedron.

Reimplemented from Graphic3d_CView.

GraduatedTrihedronMinMaxValues()

void OpenGl_View::GraduatedTrihedronMinMaxValues ( const NCollection_Vec3< float > theMin, const NCollection_Vec3< float > theMax )

overridevirtual

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

Parameters

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

Reimplemented from Graphic3d_CView.

GridDisplay()

void OpenGl_View::GridDisplay ( const Aspect_GridParams & theParams, const gp_Ax3 & thePlane )

overridevirtual

Display a shader-rendered grid on the given plane.

Reimplemented from Graphic3d_CView.

GridErase()

void OpenGl_View::GridErase ( )

overridevirtual

Erase the shader-rendered grid.

Reimplemented from Graphic3d_CView.

HasImmediateStructures()

bool OpenGl_View::HasImmediateStructures ( ) const

inline

Returns true if there are immediate structures to display.

initProgram()

occ::handle< OpenGl_ShaderProgram > OpenGl_View::initProgram ( const occ::handle< OpenGl_Context > & theGlContext, const occ::handle< OpenGl_ShaderObject > & theVertShader, const occ::handle< OpenGl_ShaderObject > & theFragShader, const TCollection_AsciiString & theName )

protected

Creates shader program from the given vertex and fragment shaders.

initRaytraceResources()

bool OpenGl_View::initRaytraceResources ( const int theSizeX, const int theSizeY, const occ::handle< OpenGl_Context > & theGlContext )

protected

Initializes OpenGL/GLSL shader programs.

initShader()

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

protected

Loads and compiles shader object from specified source.

initTextureEnv()

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

protected

InsertLayerAfter()

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

overridevirtual

Add a layer to the view.

Parameters

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

Implements Graphic3d_CView.

InsertLayerBefore()

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

overridevirtual

Add a layer to the view.

Parameters

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

Implements Graphic3d_CView.

Invalidate()

void OpenGl_View::Invalidate ( )

overridevirtual

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

Implements Graphic3d_CView.

InvalidateBVHData()

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()

bool OpenGl_View::IsDefined ( ) const

inlineoverridevirtual

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

Implements Graphic3d_CView.

IsInvalidated()

bool OpenGl_View::IsInvalidated ( )

inlineoverridevirtual

Return true if view content cache has been invalidated.

Implements Graphic3d_CView.

Layer()

occ::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()

const NCollection_List< occ::handle< Graphic3d_Layer > > & OpenGl_View::Layers ( ) const

overridevirtual

Returns the list of layers.

Implements Graphic3d_CView.

Lights()

const occ::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()

Bnd_Box OpenGl_View::MinMaxValues ( const bool 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

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

raytrace()

bool OpenGl_View::raytrace ( const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer * theReadDrawFbo, const occ::handle< OpenGl_Context > & theGlContext )

protected

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

Redraw()

void OpenGl_View::Redraw ( )

overridevirtual

Redraw content of the view.

Implements Graphic3d_CView.

redraw()

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

protectedvirtual

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

RedrawImmediate()

void OpenGl_View::RedrawImmediate ( )

overridevirtual

Redraw immediate content of the view.

Implements Graphic3d_CView.

redrawImmediate()

virtual bool OpenGl_View::redrawImmediate ( const Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer * theReadFbo, OpenGl_FrameBuffer * theDrawFbo, OpenGl_FrameBuffer * theOitAccumFbo, const bool theIsPartialUpdate = 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 occ::handle< OpenGl_Context > & theCtx )

virtual

Release OpenGL resources.

Reimplemented in D3DHost_View.

releaseRaytraceResources()

void OpenGl_View::releaseRaytraceResources ( const occ::handle< OpenGl_Context > & theGlContext, const bool theToRebuild = false )

protected

Releases OpenGL/GLSL shader programs.

Remove()

void OpenGl_View::Remove ( )

overridevirtual

Deletes and erases the view.

Reimplemented from Graphic3d_CView.

RemoveZLayer()

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 bool theToDrawImmediate )

protectedvirtual

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

Parameters

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

renderFrameStats()

void OpenGl_View::renderFrameStats ( )

protected

Renders frame statistics.

renderGrid()

void OpenGl_View::renderGrid ( )

protected

Render the shader-based grid. No-op unless GridDisplay() has been called and the GAPI supports the grid shader.

renderScene()

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

protectedvirtual

Renders the graphical scene.

Parameters

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

renderShadowMap()

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

protectedvirtual

main list of displayed structure, sorted by layers

renderStructs()

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

protectedvirtual

Render set of structures presented in the view.

Parameters

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

renderTrihedron()

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

protected

Renders trihedron.

Resized()

void OpenGl_View::Resized ( )

overridevirtual

Handle changing size of the rendering window.

Implements Graphic3d_CView.

runPathtrace()

bool OpenGl_View::runPathtrace ( const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, const occ::handle< OpenGl_Context > & theGlContext )

protected

Runs path tracing (global illumination) kernel.

runPathtraceOut()

bool OpenGl_View::runPathtraceOut ( Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer * theReadDrawFbo, const occ::handle< OpenGl_Context > & theGlContext )

protected

Runs path tracing (global illumination) kernel.

runRaytrace()

bool OpenGl_View::runRaytrace ( const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer * theReadDrawFbo, const occ::handle< OpenGl_Context > & theGlContext )

protected

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

runRaytraceShaders()

bool OpenGl_View::runRaytraceShaders ( const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, OpenGl_FrameBuffer * theReadDrawFbo, const occ::handle< OpenGl_Context > & theGlContext )

protected

Runs ray-tracing shader programs.

safeFailBack()

bool OpenGl_View::safeFailBack ( const TCollection_ExtendedString & theMessage, const occ::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()

void OpenGl_View::SetBackgroundImage ( const occ::handle< Graphic3d_TextureMap > & theTextureMap, bool theToUpdatePBREnv = true )

overridevirtual

Sets image texture or environment cubemap as background.

Parameters

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

Implements Graphic3d_CView.

SetBackgroundImageStyle()

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()

void OpenGl_View::SetClipPlanes ( const occ::handle< Graphic3d_SequenceOfHClipPlane > & thePlanes )

inlineoverridevirtual

Sets list of clip planes for the view.

Implements Graphic3d_CView.

SetFBO()

void OpenGl_View::SetFBO ( const occ::handle< Standard_Transient > & theFbo )

overridevirtual

Sets framebuffer object for offscreen rendering.

Implements Graphic3d_CView.

SetGradientBackground()

void OpenGl_View::SetGradientBackground ( const Aspect_GradientBackground & theBackground )

overridevirtual

Sets gradient background fill colors.

Implements Graphic3d_CView.

SetImageBasedLighting()

void OpenGl_View::SetImageBasedLighting ( bool 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

Implements Graphic3d_CView.

SetImmediateModeDrawToFront()

bool OpenGl_View::SetImmediateModeDrawToFront ( const bool 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()

void OpenGl_View::SetLights ( const occ::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]

void OpenGl_View::SetTextureEnv ( const occ::handle< Graphic3d_TextureEnv > & theTextureEnv )

overridevirtual

Sets environment texture for the view.

Implements Graphic3d_CView.

SetTextureEnv() [2/2]

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

SetToFlipOutput()

void OpenGl_View::SetToFlipOutput ( const bool theFlip )

inlineoverridevirtual

Sets state of flip OY necessity in projection matrix.

Reimplemented from Graphic3d_CView.

setUniformState()

bool OpenGl_View::setUniformState ( const int theProgramId, const int theSizeX, const int theSizeY, Graphic3d_Camera::Projection theProjection, const occ::handle< OpenGl_Context > & theGlContext )

protected

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

SetWindow()

void OpenGl_View::SetWindow ( const occ::handle< Graphic3d_CView > & theParentVIew, const occ::handle< Aspect_Window > & theWindow, const Aspect_RenderingContext theContext )

overridevirtual

Creates and maps rendering window to the view.

Implements Graphic3d_CView.

SetZLayerSettings()

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.

ShaderGridEcho() [1/2]

bool OpenGl_View::ShaderGridEcho ( const int theX, const int theY, Graphic3d_Vertex & thePoint ) const

overridevirtual

Return snapped point for the shader-rendered grid under the window pixel.

Reimplemented from Graphic3d_CView.

ShaderGridEcho() [2/2]

bool OpenGl_View::ShaderGridEcho ( const int theX, const int theY, Graphic3d_Vertex & thePoint, Graphic3d_Vertex & theDisplayPoint ) const

overridevirtual

Return snapped point and clip-safe display point for the shader-rendered grid echo marker.

Reimplemented from Graphic3d_CView.

ShaderGridSnapPoint()

bool OpenGl_View::ShaderGridSnapPoint ( const Graphic3d_Vertex & thePoint, Graphic3d_Vertex & theGridPoint ) const

overridevirtual

Return snapped point for the shader-rendered grid from an arbitrary world point.

Reimplemented from Graphic3d_CView.

ShadowMapDump()

bool 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.
[in]	theLightName	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]

TCollection_AsciiString OpenGl_View::StatisticInformation ( ) const

overridevirtual

Returns string with statistic performance info.

Implements Graphic3d_CView.

StatisticInformation() [2/2]

void OpenGl_View::StatisticInformation ( NCollection_IndexedDataMap< TCollection_AsciiString, TCollection_AsciiString > & theDict ) const

overridevirtual

Fills in the dictionary with statistic performance info.

Implements Graphic3d_CView.

ToFlipOutput()

bool OpenGl_View::ToFlipOutput ( ) const

inlineoverridevirtual

Returns necessity to flip OY in projection matrix.

Reimplemented from Graphic3d_CView.

toUpdateStructure()

bool OpenGl_View::toUpdateStructure ( const OpenGl_Structure * theStructure )

protected

Checks to see if the OpenGL structure is modified.

unbindRaytraceTextures()

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

protected

Unbinds ray-trace textures from corresponding texture unit.

updateCamera()

void OpenGl_View::updateCamera ( const NCollection_Mat4< float > & theOrientation, const NCollection_Mat4< float > & theViewMapping, NCollection_Vec3< float > * theOrigins, NCollection_Vec3< float > * theDirects, NCollection_Mat4< float > & theView, NCollection_Mat4< float > & theUnView )

protected

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

updatePBREnvironment()

void OpenGl_View::updatePBREnvironment ( const occ::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 NCollection_Mat4< float > & theOrientation, const NCollection_Mat4< float > & theViewMapping, Graphic3d_Camera::Projection theProjection, NCollection_Mat4< float > & theViewPr, NCollection_Mat4< float > & theUnview, const int theWinSizeX, const int theWinSizeY )

protected

Generate viewing rays (path tracing, perspective camera).

updateRaytraceBuffers()

bool OpenGl_View::updateRaytraceBuffers ( const int theSizeX, const int theSizeY, const occ::handle< OpenGl_Context > & theGlContext )

protected

Updates auxiliary OpenGL frame buffers.

updateRaytraceGeometry()

bool OpenGl_View::updateRaytraceGeometry ( const RaytraceUpdateMode theMode, const int theViewId, const occ::handle< OpenGl_Context > & theGlContext )

protected

Updates 3D scene light sources for ray-tracing.

updateRaytraceLightSources()

bool OpenGl_View::updateRaytraceLightSources ( const NCollection_Mat4< float > & theInvModelView, const occ::handle< OpenGl_Context > & theGlContext )

protected

Updates 3D scene light sources for ray-tracing.

updateSkydomeBg()

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

protected

uploadRaytraceData()

bool OpenGl_View::uploadRaytraceData ( const occ::handle< OpenGl_Context > & theGlContext )

protected

Uploads ray-trace data to the GPU.

Window()

occ::handle< Aspect_Window > OpenGl_View::Window ( ) const

overridevirtual

Returns window associated with the view.

Implements Graphic3d_CView.

ZFitAllBounds()

void OpenGl_View::ZFitAllBounds ( Bnd_Box & thePrimaryBox, Bnd_Box & theGraphicBox ) const

overridevirtual

Return primary and graphical bounding boxes used by camera Z fitting.

Reimplemented from Graphic3d_CView.

ZLayerMax()

int 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

int OpenGl_View::myAccumFrames

protected

Number of accumulated frames (for progressive rendering).

myArrayToTrianglesMap

NCollection_DataMap<size_t, OpenGl_TriangleSet*> OpenGl_View::myArrayToTrianglesMap

protected

PrimitiveArray to TriangleSet map for scene partial update.

myBackBufferRestored

bool OpenGl_View::myBackBufferRestored

protected

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

occ::handle<OpenGl_Caps> OpenGl_View::myCaps

protected

main list of displayed structure, sorted by layers

myClipPlanes

occ::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

size_t OpenGl_View::myCurrLightSourceState

protected

main list of displayed structure, sorted by layers

myDepthPeelingFbos

occ::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

NCollection_Vec3<float> OpenGl_View::myEyeOrig

protected

Camera position used for projective mode.

myEyeSide

NCollection_Vec3<float> OpenGl_View::myEyeSide

protected

Camera's screen horizontal direction used for projective mode.

myEyeSize

NCollection_Vec2<float> OpenGl_View::myEyeSize

protected

Camera's screen size used for projective mode.

myEyeVert

NCollection_Vec3<float> OpenGl_View::myEyeVert

protected

Camera's screen vertical direction used for projective mode.

myEyeView

NCollection_Vec3<float> OpenGl_View::myEyeView

protected

Camera view direction used for projective mode.

myFBO

occ::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

NCollection_DynamicArray<int> 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

track sRGB state

myGeometryNormalTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::myGeometryNormalTexture

protected

Texture buffer of vertex normals.

myGeometryTexCrdTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::myGeometryTexCrdTexture

protected

Texture buffer of vertex UV coords.

myGeometryTriangTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::myGeometryTriangTexture

protected

Texture buffer of triangle indices.

myGeometryVertexTexture

occ::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

myGridVao

unsigned int OpenGl_View::myGridVao

protected

dedicated VAO for textureless grid draw

myGTrihedronData

Graphic3d_GraduatedTrihedron OpenGl_View::myGTrihedronData

protected

main list of displayed structure, sorted by layers

myHasFboBlit

bool OpenGl_View::myHasFboBlit

protected

disable FBOs on failure

myImmediateSceneFbos

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myImmediateSceneFbos[2]

protected

Additional buffers for immediate layer in stereo mode.

myImmediateSceneFbosOit

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myImmediateSceneFbosOit[2]

protected

Additional buffers for transparency draw of immediate layer.

myIsImmediateDrawn

bool OpenGl_View::myIsImmediateDrawn

protected

flag indicates that immediate mode buffer contains some data

myIsRaytraceDataValid

bool OpenGl_View::myIsRaytraceDataValid

protected

Is ray-tracing geometry data valid?

myIsRaytraceWarnTextures

bool 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

occ::handle<Graphic3d_LightSet> OpenGl_View::myLights

protected

main list of displayed structure, sorted by layers

myLightsRevision

size_t 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

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myMainSceneFbos[2]

protected

track sRGB state

myMainSceneFbosOit

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myMainSceneFbosOit[2]

protected

Additional buffers for transparent draw of main layer.

myNonRaytraceStructureIDs

NCollection_Map<int> OpenGl_View::myNonRaytraceStructureIDs

protected

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

myNoShadingLight

occ::handle<Graphic3d_LightSet> OpenGl_View::myNoShadingLight

protected

main list of displayed structure, sorted by layers

myOpenGlFBO

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myOpenGlFBO

protected

Framebuffers for OpenGL output.

myOpenGlFBO2

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myOpenGlFBO2

protected

main list of displayed structure, sorted by layers

myOutImageProgram

occ::handle<OpenGl_ShaderProgram> OpenGl_View::myOutImageProgram

protected

OpenGL/GLSL program for displaying texture.

myOutImageShader

occ::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

occ::handle<OpenGl_PBREnvironment> OpenGl_View::myPBREnvironment

protected

manager of IBL maps used in PBR pipeline

myPBREnvRequest

bool OpenGl_View::myPBREnvRequest

protected

update PBR environment

myPBREnvState

PBREnvironmentState OpenGl_View::myPBREnvState

protected

state of PBR environment

myPostFSAAProgram

occ::handle<OpenGl_ShaderProgram> OpenGl_View::myPostFSAAProgram

protected

OpenGL/GLSL adaptive-AA shader program.

myPostFSAAShader

occ::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

NCollection_Vec3<float> OpenGl_View::myPreviousOrigins[3]

protected

Stored ray origins used for detection of camera movements.

myRaytraceBVHBuilder

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

protected

Builder for triangle set.

myRaytraceFBO1

occ::handle<OpenGl_FrameBuffer> OpenGl_View::myRaytraceFBO1[2]

protected

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

myRaytraceFBO2

occ::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

Is ray-tracing geometry data valid?

myRaytraceLayerListState

size_t OpenGl_View::myRaytraceLayerListState

protected

State of OpenGL layer list.

myRaytraceLightSrcTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::myRaytraceLightSrcTexture

protected

Texture buffer of light source properties.

myRaytraceMaterialTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::myRaytraceMaterialTexture

protected

Texture buffer of material properties.

myRaytraceOutputTexture

occ::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

occ::handle<OpenGl_ShaderProgram> OpenGl_View::myRaytraceProgram

protected

OpenGL/GLSL ray-tracing shader program.

myRaytraceSceneEpsilon

float OpenGl_View::myRaytraceSceneEpsilon

protected

Scene epsilon to prevent self-intersections.

myRaytraceSceneRadius

float 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

occ::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

occ::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

occ::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

occ::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

occ::handle<OpenGl_TextureBuffer> OpenGl_View::mySceneMaxPointTexture

protected

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

mySceneMinPointTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::mySceneMinPointTexture

protected

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

mySceneNodeInfoTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::mySceneNodeInfoTexture

protected

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

mySceneTransformTexture

occ::handle<OpenGl_TextureBuffer> OpenGl_View::mySceneTransformTexture

protected

Texture buffer of transformations of high-level BVH nodes.

myShaderGrid

OpenGl_ShaderGrid OpenGl_View::myShaderGrid

protected

shader grid state and geometry model

myShadowMaps

occ::handle<OpenGl_ShadowMapArray> OpenGl_View::myShadowMaps

protected

additional FBOs for shadow map rendering

mySkydomeTexture

occ::handle<OpenGl_Texture> OpenGl_View::mySkydomeTexture

protected

Stores texture and its parameters for textured background.

mySRgbState

int OpenGl_View::mySRgbState

protected

track sRGB state

myStateCounter

OpenGl_StateCounter* OpenGl_View::myStateCounter

protected

main list of displayed structure, sorted by layers

myStructureStates

NCollection_DataMap<const OpenGl_Structure*, StructState> OpenGl_View::myStructureStates

protected

State of OpenGL structures reflected to ray-tracing.

myTextureEnv

occ::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

bool OpenGl_View::myToDisableMSAA

protected

disable MSAA after failure

myToDisableOIT

bool OpenGl_View::myToDisableOIT

protected

disable OIT on failure

myToDisableOITMSAA

bool OpenGl_View::myToDisableOITMSAA

protected

disable OIT with MSAA on failure

myToFlipOutput

bool OpenGl_View::myToFlipOutput

protected

Flag to draw result image upside-down.

myToShowGradTrihedron

bool OpenGl_View::myToShowGradTrihedron

protected

main list of displayed structure, sorted by layers

myToUpdateEnvironmentMap

bool OpenGl_View::myToUpdateEnvironmentMap

protected

Marks if environment map should be updated.

myTransientDrawToFront

bool OpenGl_View::myTransientDrawToFront

protected

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

myUniformLocations

int OpenGl_View::myUniformLocations[2][OpenGl_RT_NbVariables]

protected

Cached locations of frequently used uniform variables.

myWasRedrawnGL

bool OpenGl_View::myWasRedrawnGL

protected

main list of displayed structure, sorted by layers

myWindow

occ::handle<OpenGl_Window> OpenGl_View::myWindow

protected

main list of displayed structure, sorted by layers

myWorkspace

occ::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

occ::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

int OpenGl_View::THE_DEFAULT_NB_BOUNCES = 3

staticconstexprprotected

Default ray-tracing depth.

THE_DEFAULT_STACK_SIZE

int OpenGl_View::THE_DEFAULT_STACK_SIZE = 10

staticconstexprprotected

Default size of traversal stack.

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

• OpenGl_View.hxx