This class is responsible for managing shader programs. More...

#include <OpenGl_ShaderManager.hxx>

Inheritance diagram for OpenGl_ShaderManager:

Data Structures
struct	OpenGl_ShaderLightParameters
	Packed properties of light source. More...

struct	OpenGl_ShaderLightType
	Packed light source type information. More...

class	OpenGl_ShaderProgramFFP
	Fake OpenGL program for tracking FFP state in the way consistent to programmable pipeline. More...

Public Member Functions
	OpenGl_ShaderManager (OpenGl_Context *theContext)
	Creates new empty shader manager. More...

virtual	~OpenGl_ShaderManager ()
	Releases resources of shader manager. More...

void	clear ()
	Release all resources. More...

const gp_XYZ &	LocalOrigin () const
	Return local camera transformation. More...

void	SetLocalOrigin (const gp_XYZ &theOrigin)
	Setup local camera transformation for compensating float precision issues. More...

Standard_Boolean	Create (const Handle< Graphic3d_ShaderProgram > &theProxy, TCollection_AsciiString &theShareKey, Handle< OpenGl_ShaderProgram > &theProgram)
	Creates new shader program or re-use shared instance. More...

void	Unregister (TCollection_AsciiString &theShareKey, Handle< OpenGl_ShaderProgram > &theProgram)
	Unregisters specified shader program. More...

const OpenGl_ShaderProgramList &	ShaderPrograms () const
	Returns list of registered shader programs. More...

Standard_Boolean	IsEmpty () const
	Returns true if no program objects are registered in the manager. More...

Standard_Boolean	BindFaceProgram (const Handle< OpenGl_TextureSet > &theTextures, const Graphic3d_TypeOfShadingModel theShadingModel, const Graphic3d_AlphaMode theAlphaMode, const Standard_Boolean theHasVertColor, const Standard_Boolean theEnableEnvMap, const Handle< OpenGl_ShaderProgram > &theCustomProgram)
	Bind program for filled primitives rendering. More...

Standard_Boolean	BindLineProgram (const Handle< OpenGl_TextureSet > &theTextures, const Aspect_TypeOfLine theLineType, const Graphic3d_TypeOfShadingModel theShadingModel, const Graphic3d_AlphaMode theAlphaMode, const Standard_Boolean theHasVertColor, const Handle< OpenGl_ShaderProgram > &theCustomProgram)
	Bind program for line rendering. More...

Standard_Boolean	BindMarkerProgram (const Handle< OpenGl_TextureSet > &theTextures, const Graphic3d_TypeOfShadingModel theShadingModel, const Graphic3d_AlphaMode theAlphaMode, const Standard_Boolean theHasVertColor, const Handle< OpenGl_ShaderProgram > &theCustomProgram)
	Bind program for point rendering. More...

Standard_Boolean	BindFontProgram (const Handle< OpenGl_ShaderProgram > &theCustomProgram)
	Bind program for rendering alpha-textured font. More...

Standard_Boolean	BindFboBlitProgram ()
	Bind program for FBO blit operation. More...

Standard_Boolean	BindOitCompositingProgram (const Standard_Boolean theIsMSAAEnabled)
	Bind program for blended order-independent transparency buffers compositing. More...

Standard_Boolean	BindStereoProgram (const Graphic3d_StereoMode theStereoMode)
	Bind program for rendering stereoscopic image. More...

const OpenGl_LightSourceState &	LightSourceState () const
	Returns current state of OCCT light sources. More...

void	UpdateLightSourceStateTo (const Handle< Graphic3d_LightSet > &theLights)
	Updates state of OCCT light sources. More...

void	UpdateLightSourceState ()
	Invalidate state of OCCT light sources. More...

void	PushLightSourceState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of OCCT light sources to specified program. More...

const OpenGl_ProjectionState &	ProjectionState () const
	Returns current state of OCCT projection transform. More...

void	UpdateProjectionStateTo (const OpenGl_Mat4 &theProjectionMatrix)
	Updates state of OCCT projection transform. More...

void	PushProjectionState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of OCCT projection transform to specified program. More...

const OpenGl_ModelWorldState &	ModelWorldState () const
	Returns current state of OCCT model-world transform. More...

void	UpdateModelWorldStateTo (const OpenGl_Mat4 &theModelWorldMatrix)
	Updates state of OCCT model-world transform. More...

void	PushModelWorldState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of OCCT model-world transform to specified program. More...

const OpenGl_WorldViewState &	WorldViewState () const
	Returns current state of OCCT world-view transform. More...

void	UpdateWorldViewStateTo (const OpenGl_Mat4 &theWorldViewMatrix)
	Updates state of OCCT world-view transform. More...

void	PushWorldViewState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of OCCT world-view transform to specified program. More...

void	UpdateClippingState ()
	Updates state of OCCT clipping planes. More...

void	RevertClippingState ()
	Reverts state of OCCT clipping planes. More...

void	PushClippingState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of OCCT clipping planes to specified program. More...

const OpenGl_MaterialState &	MaterialState () const
	Returns current state of material. More...

void	UpdateMaterialStateTo (const OpenGl_Material &theFrontMat, const OpenGl_Material &theBackMat, const float theAlphaCutoff, const bool theToDistinguish, const bool theToMapTexture)
	Updates state of material. More...

void	UpdateMaterialState ()
	Updates state of material. More...

void	PushMaterialState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of material to specified program. More...

const OpenGl_OitState &	OitState () const
	Returns state of OIT uniforms. More...

void	SetOitState (const bool theToEnableOitWrite, const float theDepthFactor)
	Set the state of OIT rendering pass. More...

void	PushOitState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes state of OIT uniforms to the specified program. More...

void	PushState (const Handle< OpenGl_ShaderProgram > &theProgram) const
	Pushes current state of OCCT graphics parameters to specified program. More...

void	SetContext (OpenGl_Context *theCtx)
	Overwrites context. More...

bool	IsSameContext (OpenGl_Context *theCtx) const
	Returns true when provided context is the same as used one by shader manager. More...

Graphic3d_TypeOfShadingModel	ChooseFaceShadingModel (Graphic3d_TypeOfShadingModel theCustomModel, bool theHasNodalNormals) const
	Choose Shading Model for filled primitives. Fallbacks to FACET model if there are no normal attributes. More...

Graphic3d_TypeOfShadingModel	ChooseLineShadingModel (Graphic3d_TypeOfShadingModel theCustomModel, bool theHasNodalNormals) const
	Choose Shading Model for line primitives. Fallbacks to UNLIT model if there are no normal attributes. More...

Graphic3d_TypeOfShadingModel	ChooseMarkerShadingModel (Graphic3d_TypeOfShadingModel theCustomModel, bool theHasNodalNormals) const
	Choose Shading Model for Marker primitives. More...

Graphic3d_TypeOfShadingModel	ShadingModel () const
	Returns default Shading Model. More...

void	SetShadingModel (const Graphic3d_TypeOfShadingModel theModel)
	Sets shading model. More...

void	SetLastView (const OpenGl_View *theLastView)
	Sets last view manger used with. Helps to handle matrix states in multi-view configurations. More...

bool	IsSameView (const OpenGl_View *theView) const
	Returns true when provided view is the same as cached one. More...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Protected Member Functions
Standard_Integer	getProgramBits (const Handle< OpenGl_TextureSet > &theTextures, Graphic3d_AlphaMode theAlphaMode, Standard_Boolean theHasVertColor, Standard_Boolean theEnableEnvMap)
	Define program bits. More...

Handle< OpenGl_ShaderProgram > &	getStdProgram (Graphic3d_TypeOfShadingModel theShadingModel, Standard_Integer theBits)
	Prepare standard GLSL program. More...

TCollection_AsciiString	pointSpriteAlphaSrc (const Standard_Integer theBits)
	Prepare standard GLSL program for accessing point sprite alpha. More...

TCollection_AsciiString	pointSpriteShadingSrc (const TCollection_AsciiString theBaseColorSrc, const Standard_Integer theBits)
	Prepare standard GLSL program for computing point sprite shading. More...

Standard_Boolean	prepareStdProgramFont ()
	Prepare standard GLSL program for textured font. More...

Standard_Boolean	prepareStdProgramFboBlit ()
	Prepare standard GLSL program for FBO blit operation. More...

Standard_Boolean	prepareStdProgramOitCompositing (const Standard_Boolean theMsaa)
	Prepare standard GLSL programs for OIT compositing operation. More...

Standard_Boolean	prepareStdProgramUnlit (Handle< OpenGl_ShaderProgram > &theProgram, const Standard_Integer theBits)
	Prepare standard GLSL program without lighting. More...

Standard_Boolean	prepareStdProgramLight (Handle< OpenGl_ShaderProgram > &theProgram, Graphic3d_TypeOfShadingModel theShadingModel, Standard_Integer theBits)
	Prepare standard GLSL program with lighting. More...

Standard_Boolean	prepareStdProgramGouraud (Handle< OpenGl_ShaderProgram > &theProgram, const Standard_Integer theBits)
	Prepare standard GLSL program with per-vertex lighting. More...

Standard_Boolean	prepareStdProgramPhong (Handle< OpenGl_ShaderProgram > &theProgram, const Standard_Integer theBits, const Standard_Boolean theIsFlatNormal=false)
	Prepare standard GLSL program with per-pixel lighting. More...

TCollection_AsciiString	stdComputeLighting (Standard_Integer &theNbLights, Standard_Boolean theHasVertColor)
	Define computeLighting GLSL function depending on current lights configuration. More...

Standard_Boolean	bindProgramWithState (const Handle< OpenGl_ShaderProgram > &theProgram)
	Bind specified program to current context and apply state. More...

void	switchLightPrograms ()
	Set pointer myLightPrograms to active lighting programs set from myMapOfLightPrograms. More...

Standard_Boolean	prepareStdProgramStereo (Handle< OpenGl_ShaderProgram > &theProgram, const Graphic3d_StereoMode theStereoMode)
	Prepare standard GLSL program for stereoscopic image. More...

Protected Attributes
Handle< OpenGl_ShaderProgramFFP >	myFfpProgram

Graphic3d_TypeOfShadingModel	myShadingModel
	lighting shading model More...

OpenGl_ShaderProgramList	myProgramList
	The list of shader programs. More...

Handle< OpenGl_SetOfShaderPrograms >	myLightPrograms
	pointer to active lighting programs matrix More...

Handle< OpenGl_SetOfShaderPrograms >	myUnlitPrograms
	programs matrix without lighting More...

Handle< OpenGl_ShaderProgram >	myFontProgram
	standard program for textured text More...

Handle< OpenGl_ShaderProgram >	myBlitProgram
	standard program for FBO blit emulation More...

Handle< OpenGl_ShaderProgram >	myOitCompositingProgram [2]
	standard program for OIT compositing (default and MSAA). More...

OpenGl_MapOfShaderPrograms	myMapOfLightPrograms
	map of lighting programs depending on lights configuration More...

Handle< OpenGl_ShaderProgram >	myStereoPrograms [Graphic3d_StereoMode_NB]
	standard stereo programs More...

OpenGl_Context *	myContext
	OpenGL context. More...

OpenGl_ProjectionState	myProjectionState
	State of OCCT projection transformation. More...

OpenGl_ModelWorldState	myModelWorldState
	State of OCCT model-world transformation. More...

OpenGl_WorldViewState	myWorldViewState
	State of OCCT world-view transformation. More...

OpenGl_ClippingState	myClippingState
	State of OCCT clipping planes. More...

OpenGl_LightSourceState	myLightSourceState
	State of OCCT light sources. More...

OpenGl_MaterialState	myMaterialState
	State of Front and Back materials. More...

OpenGl_OitState	myOitState
	State of OIT uniforms. More...

gp_XYZ	myLocalOrigin
	local camera transformation More...

Standard_Boolean	myHasLocalOrigin
	flag indicating that local camera transformation has been set More...

NCollection_Array1< OpenGl_ShaderLightType >	myLightTypeArray

NCollection_Array1< OpenGl_ShaderLightParameters >	myLightParamsArray

NCollection_Array1< OpenGl_Vec4 >	myClipPlaneArray

NCollection_Array1< OpenGl_Vec4d >	myClipPlaneArrayFfp

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

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

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

Detailed Description

This class is responsible for managing shader programs.

Constructor & Destructor Documentation

◆ OpenGl_ShaderManager()

OpenGl_ShaderManager::OpenGl_ShaderManager ( OpenGl_Context * theContext )

Creates new empty shader manager.

◆ ~OpenGl_ShaderManager()

virtual OpenGl_ShaderManager::~OpenGl_ShaderManager ( )

virtual

Releases resources of shader manager.

Member Function Documentation

◆ BindFaceProgram()

Standard_Boolean OpenGl_ShaderManager::BindFaceProgram	(	const Handle< OpenGl_TextureSet > &	theTextures,
		const Graphic3d_TypeOfShadingModel	theShadingModel,
		const Graphic3d_AlphaMode	theAlphaMode,
		const Standard_Boolean	theHasVertColor,
		const Standard_Boolean	theEnableEnvMap,
		const Handle< OpenGl_ShaderProgram > &	theCustomProgram
	)

inline

Bind program for filled primitives rendering.

◆ BindFboBlitProgram()

Standard_Boolean OpenGl_ShaderManager::BindFboBlitProgram ( )

inline

Bind program for FBO blit operation.

◆ BindFontProgram()

Standard_Boolean OpenGl_ShaderManager::BindFontProgram ( const Handle< OpenGl_ShaderProgram > & theCustomProgram )

inline

Bind program for rendering alpha-textured font.

◆ BindLineProgram()

Standard_Boolean OpenGl_ShaderManager::BindLineProgram	(	const Handle< OpenGl_TextureSet > &	theTextures,
		const Aspect_TypeOfLine	theLineType,
		const Graphic3d_TypeOfShadingModel	theShadingModel,
		const Graphic3d_AlphaMode	theAlphaMode,
		const Standard_Boolean	theHasVertColor,
		const Handle< OpenGl_ShaderProgram > &	theCustomProgram
	)

inline

Bind program for line rendering.

◆ BindMarkerProgram()

Standard_Boolean OpenGl_ShaderManager::BindMarkerProgram	(	const Handle< OpenGl_TextureSet > &	theTextures,
		const Graphic3d_TypeOfShadingModel	theShadingModel,
		const Graphic3d_AlphaMode	theAlphaMode,
		const Standard_Boolean	theHasVertColor,
		const Handle< OpenGl_ShaderProgram > &	theCustomProgram
	)

inline

Bind program for point rendering.

◆ BindOitCompositingProgram()

Standard_Boolean OpenGl_ShaderManager::BindOitCompositingProgram ( const Standard_Boolean theIsMSAAEnabled )

inline

Bind program for blended order-independent transparency buffers compositing.

◆ bindProgramWithState()

Standard_Boolean OpenGl_ShaderManager::bindProgramWithState ( const Handle< OpenGl_ShaderProgram > & theProgram )

protected

Bind specified program to current context and apply state.

◆ BindStereoProgram()

Standard_Boolean OpenGl_ShaderManager::BindStereoProgram ( const Graphic3d_StereoMode theStereoMode )

inline

Bind program for rendering stereoscopic image.

◆ ChooseFaceShadingModel()

Graphic3d_TypeOfShadingModel OpenGl_ShaderManager::ChooseFaceShadingModel	(	Graphic3d_TypeOfShadingModel	theCustomModel,
		bool	theHasNodalNormals
	)		const

inline

Choose Shading Model for filled primitives. Fallbacks to FACET model if there are no normal attributes.

◆ ChooseLineShadingModel()

Graphic3d_TypeOfShadingModel OpenGl_ShaderManager::ChooseLineShadingModel	(	Graphic3d_TypeOfShadingModel	theCustomModel,
		bool	theHasNodalNormals
	)		const

inline

Choose Shading Model for line primitives. Fallbacks to UNLIT model if there are no normal attributes.

◆ ChooseMarkerShadingModel()

Graphic3d_TypeOfShadingModel OpenGl_ShaderManager::ChooseMarkerShadingModel	(	Graphic3d_TypeOfShadingModel	theCustomModel,
		bool	theHasNodalNormals
	)		const

inline

Choose Shading Model for Marker primitives.

◆ clear()

void OpenGl_ShaderManager::clear ( )

Release all resources.

◆ Create()

Standard_Boolean OpenGl_ShaderManager::Create	(	const Handle< Graphic3d_ShaderProgram > &	theProxy,
		TCollection_AsciiString &	theShareKey,
		Handle< OpenGl_ShaderProgram > &	theProgram
	)

Creates new shader program or re-use shared instance.

Parameters

theProxy	[IN] program definition
theShareKey	[OUT] sharing key
theProgram	[OUT] OpenGL program

Returns: true on success

◆ getProgramBits()

Standard_Integer OpenGl_ShaderManager::getProgramBits	(	const Handle< OpenGl_TextureSet > &	theTextures,
		Graphic3d_AlphaMode	theAlphaMode,
		Standard_Boolean	theHasVertColor,
		Standard_Boolean	theEnableEnvMap
	)

inlineprotected

Define program bits.

◆ getStdProgram()

Handle< OpenGl_ShaderProgram >& OpenGl_ShaderManager::getStdProgram	(	Graphic3d_TypeOfShadingModel	theShadingModel,
		Standard_Integer	theBits
	)

inlineprotected

Prepare standard GLSL program.

◆ IsEmpty()

Standard_Boolean OpenGl_ShaderManager::IsEmpty ( ) const

Returns true if no program objects are registered in the manager.

◆ IsSameContext()

bool OpenGl_ShaderManager::IsSameContext ( OpenGl_Context * theCtx ) const

inline

Returns true when provided context is the same as used one by shader manager.

◆ IsSameView()

bool OpenGl_ShaderManager::IsSameView ( const OpenGl_View * theView ) const

inline

Returns true when provided view is the same as cached one.

◆ LightSourceState()

const OpenGl_LightSourceState& OpenGl_ShaderManager::LightSourceState ( ) const

inline

Returns current state of OCCT light sources.

◆ LocalOrigin()

const gp_XYZ& OpenGl_ShaderManager::LocalOrigin ( ) const

inline

Return local camera transformation.

◆ MaterialState()

const OpenGl_MaterialState& OpenGl_ShaderManager::MaterialState ( ) const

inline

Returns current state of material.

◆ ModelWorldState()

const OpenGl_ModelWorldState& OpenGl_ShaderManager::ModelWorldState ( ) const

inline

Returns current state of OCCT model-world transform.

◆ OitState()

const OpenGl_OitState& OpenGl_ShaderManager::OitState ( ) const

inline

Returns state of OIT uniforms.

◆ pointSpriteAlphaSrc()

TCollection_AsciiString OpenGl_ShaderManager::pointSpriteAlphaSrc ( const Standard_Integer theBits )

protected

Prepare standard GLSL program for accessing point sprite alpha.

◆ pointSpriteShadingSrc()

TCollection_AsciiString OpenGl_ShaderManager::pointSpriteShadingSrc	(	const TCollection_AsciiString	theBaseColorSrc,
		const Standard_Integer	theBits
	)

protected

Prepare standard GLSL program for computing point sprite shading.

◆ prepareStdProgramFboBlit()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramFboBlit ( )

protected

Prepare standard GLSL program for FBO blit operation.

◆ prepareStdProgramFont()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramFont ( )

protected

Prepare standard GLSL program for textured font.

◆ prepareStdProgramGouraud()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramGouraud	(	Handle< OpenGl_ShaderProgram > &	theProgram,
		const Standard_Integer	theBits
	)

protected

Prepare standard GLSL program with per-vertex lighting.

◆ prepareStdProgramLight()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramLight	(	Handle< OpenGl_ShaderProgram > &	theProgram,
		Graphic3d_TypeOfShadingModel	theShadingModel,
		Standard_Integer	theBits
	)

inlineprotected

Prepare standard GLSL program with lighting.

◆ prepareStdProgramOitCompositing()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramOitCompositing ( const Standard_Boolean theMsaa )

protected

Prepare standard GLSL programs for OIT compositing operation.

◆ prepareStdProgramPhong()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramPhong	(	Handle< OpenGl_ShaderProgram > &	theProgram,
		const Standard_Integer	theBits,
		const Standard_Boolean	theIsFlatNormal = `false`
	)

protected

Prepare standard GLSL program with per-pixel lighting.

Parameters

theIsFlatNormal when TRUE, the Vertex normals will be ignored and Face normal will be computed instead

◆ prepareStdProgramStereo()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramStereo	(	Handle< OpenGl_ShaderProgram > &	theProgram,
		const Graphic3d_StereoMode	theStereoMode
	)

protected

Prepare standard GLSL program for stereoscopic image.

◆ prepareStdProgramUnlit()

Standard_Boolean OpenGl_ShaderManager::prepareStdProgramUnlit	(	Handle< OpenGl_ShaderProgram > &	theProgram,
		const Standard_Integer	theBits
	)

protected

Prepare standard GLSL program without lighting.

◆ ProjectionState()

const OpenGl_ProjectionState& OpenGl_ShaderManager::ProjectionState ( ) const

inline

Returns current state of OCCT projection transform.

◆ PushClippingState()

void OpenGl_ShaderManager::PushClippingState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of OCCT clipping planes to specified program.

◆ PushLightSourceState()

void OpenGl_ShaderManager::PushLightSourceState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of OCCT light sources to specified program.

◆ PushMaterialState()

void OpenGl_ShaderManager::PushMaterialState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of material to specified program.

◆ PushModelWorldState()

void OpenGl_ShaderManager::PushModelWorldState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of OCCT model-world transform to specified program.

◆ PushOitState()

void OpenGl_ShaderManager::PushOitState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes state of OIT uniforms to the specified program.

◆ PushProjectionState()

void OpenGl_ShaderManager::PushProjectionState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of OCCT projection transform to specified program.

◆ PushState()

void OpenGl_ShaderManager::PushState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of OCCT graphics parameters to specified program.

◆ PushWorldViewState()

void OpenGl_ShaderManager::PushWorldViewState ( const Handle< OpenGl_ShaderProgram > & theProgram ) const

Pushes current state of OCCT world-view transform to specified program.

◆ RevertClippingState()

void OpenGl_ShaderManager::RevertClippingState ( )

Reverts state of OCCT clipping planes.

◆ SetContext()

void OpenGl_ShaderManager::SetContext ( OpenGl_Context * theCtx )

inline

Overwrites context.

◆ SetLastView()

void OpenGl_ShaderManager::SetLastView ( const OpenGl_View * theLastView )

inline

Sets last view manger used with. Helps to handle matrix states in multi-view configurations.

◆ SetLocalOrigin()

void OpenGl_ShaderManager::SetLocalOrigin ( const gp_XYZ & theOrigin )

inline

Setup local camera transformation for compensating float precision issues.

◆ SetOitState()

void OpenGl_ShaderManager::SetOitState	(	const bool	theToEnableOitWrite,
		const float	theDepthFactor
	)

inline

Set the state of OIT rendering pass.

Parameters

theToEnableOitWrite	[in] flag indicating whether the special output should be written for OIT algorithm.
theDepthFactor	[in] the scalar factor of depth influence to the fragment's coverage.

◆ SetShadingModel()

void OpenGl_ShaderManager::SetShadingModel ( const Graphic3d_TypeOfShadingModel theModel )

Sets shading model.

◆ ShaderPrograms()

const OpenGl_ShaderProgramList& OpenGl_ShaderManager::ShaderPrograms ( ) const

Returns list of registered shader programs.

◆ ShadingModel()

Graphic3d_TypeOfShadingModel OpenGl_ShaderManager::ShadingModel ( ) const

inline

Returns default Shading Model.

◆ stdComputeLighting()

TCollection_AsciiString OpenGl_ShaderManager::stdComputeLighting	(	Standard_Integer &	theNbLights,
		Standard_Boolean	theHasVertColor
	)

protected

Define computeLighting GLSL function depending on current lights configuration.

Parameters

theNbLights	[out] number of defined light sources
theHasVertColor	[in] flag to use getVertColor() instead of Ambient and Diffuse components of active material

◆ switchLightPrograms()

void OpenGl_ShaderManager::switchLightPrograms ( )

protected

Set pointer myLightPrograms to active lighting programs set from myMapOfLightPrograms.

◆ Unregister()

void OpenGl_ShaderManager::Unregister	(	TCollection_AsciiString &	theShareKey,
		Handle< OpenGl_ShaderProgram > &	theProgram
	)

Unregisters specified shader program.

◆ UpdateClippingState()

void OpenGl_ShaderManager::UpdateClippingState ( )

Updates state of OCCT clipping planes.

◆ UpdateLightSourceState()

void OpenGl_ShaderManager::UpdateLightSourceState ( )

Invalidate state of OCCT light sources.

◆ UpdateLightSourceStateTo()

void OpenGl_ShaderManager::UpdateLightSourceStateTo ( const Handle< Graphic3d_LightSet > & theLights )

Updates state of OCCT light sources.

◆ UpdateMaterialState()

void OpenGl_ShaderManager::UpdateMaterialState ( )

inline

Updates state of material.

◆ UpdateMaterialStateTo()

void OpenGl_ShaderManager::UpdateMaterialStateTo	(	const OpenGl_Material &	theFrontMat,
		const OpenGl_Material &	theBackMat,
		const float	theAlphaCutoff,
		const bool	theToDistinguish,
		const bool	theToMapTexture
	)

inline

Updates state of material.

◆ UpdateModelWorldStateTo()

void OpenGl_ShaderManager::UpdateModelWorldStateTo ( const OpenGl_Mat4 & theModelWorldMatrix )

Updates state of OCCT model-world transform.

◆ UpdateProjectionStateTo()

void OpenGl_ShaderManager::UpdateProjectionStateTo ( const OpenGl_Mat4 & theProjectionMatrix )

Updates state of OCCT projection transform.

◆ UpdateWorldViewStateTo()

void OpenGl_ShaderManager::UpdateWorldViewStateTo ( const OpenGl_Mat4 & theWorldViewMatrix )

Updates state of OCCT world-view transform.

◆ WorldViewState()

const OpenGl_WorldViewState& OpenGl_ShaderManager::WorldViewState ( ) const

inline

Returns current state of OCCT world-view transform.

Field Documentation

◆ myBlitProgram

Handle< OpenGl_ShaderProgram > OpenGl_ShaderManager::myBlitProgram

protected

standard program for FBO blit emulation

◆ myClippingState

OpenGl_ClippingState OpenGl_ShaderManager::myClippingState

protected

State of OCCT clipping planes.

◆ myClipPlaneArray

NCollection_Array1<OpenGl_Vec4> OpenGl_ShaderManager::myClipPlaneArray

mutableprotected

◆ myClipPlaneArrayFfp

NCollection_Array1<OpenGl_Vec4d> OpenGl_ShaderManager::myClipPlaneArrayFfp

mutableprotected

◆ myContext

OpenGl_Context* OpenGl_ShaderManager::myContext

protected

OpenGL context.

◆ myFfpProgram

Handle< OpenGl_ShaderProgramFFP > OpenGl_ShaderManager::myFfpProgram

protected

◆ myFontProgram

Handle< OpenGl_ShaderProgram > OpenGl_ShaderManager::myFontProgram

protected

standard program for textured text

◆ myHasLocalOrigin

Standard_Boolean OpenGl_ShaderManager::myHasLocalOrigin

protected

flag indicating that local camera transformation has been set

◆ myLightParamsArray

NCollection_Array1<OpenGl_ShaderLightParameters> OpenGl_ShaderManager::myLightParamsArray

mutableprotected

◆ myLightPrograms

Handle< OpenGl_SetOfShaderPrograms > OpenGl_ShaderManager::myLightPrograms

protected

pointer to active lighting programs matrix

◆ myLightSourceState

OpenGl_LightSourceState OpenGl_ShaderManager::myLightSourceState

protected

State of OCCT light sources.

◆ myLightTypeArray

NCollection_Array1<OpenGl_ShaderLightType> OpenGl_ShaderManager::myLightTypeArray

mutableprotected

◆ myLocalOrigin

gp_XYZ OpenGl_ShaderManager::myLocalOrigin

protected

local camera transformation

◆ myMapOfLightPrograms

OpenGl_MapOfShaderPrograms OpenGl_ShaderManager::myMapOfLightPrograms

protected

map of lighting programs depending on lights configuration

◆ myMaterialState

OpenGl_MaterialState OpenGl_ShaderManager::myMaterialState

protected

State of Front and Back materials.

◆ myModelWorldState

OpenGl_ModelWorldState OpenGl_ShaderManager::myModelWorldState

protected

State of OCCT model-world transformation.

◆ myOitCompositingProgram

Handle< OpenGl_ShaderProgram > OpenGl_ShaderManager::myOitCompositingProgram[2]

protected

standard program for OIT compositing (default and MSAA).

◆ myOitState

OpenGl_OitState OpenGl_ShaderManager::myOitState

protected

State of OIT uniforms.

◆ myProgramList

OpenGl_ShaderProgramList OpenGl_ShaderManager::myProgramList

protected

The list of shader programs.

◆ myProjectionState

OpenGl_ProjectionState OpenGl_ShaderManager::myProjectionState

protected

State of OCCT projection transformation.

◆ myShadingModel

Graphic3d_TypeOfShadingModel OpenGl_ShaderManager::myShadingModel

protected

lighting shading model

◆ myStereoPrograms

Handle< OpenGl_ShaderProgram > OpenGl_ShaderManager::myStereoPrograms[Graphic3d_StereoMode_NB]

protected

standard stereo programs

◆ myUnlitPrograms

Handle< OpenGl_SetOfShaderPrograms > OpenGl_ShaderManager::myUnlitPrograms

protected

programs matrix without lighting

◆ myWorldViewState

OpenGl_WorldViewState OpenGl_ShaderManager::myWorldViewState

protected

State of OCCT world-view transformation.

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

OpenGl_ShaderManager.hxx

Data Structures

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ OpenGl_ShaderManager()

◆ ~OpenGl_ShaderManager()

Member Function Documentation

◆ BindFaceProgram()

◆ BindFboBlitProgram()

◆ BindFontProgram()

◆ BindLineProgram()

◆ BindMarkerProgram()

◆ BindOitCompositingProgram()

◆ bindProgramWithState()

◆ BindStereoProgram()

◆ ChooseFaceShadingModel()

◆ ChooseLineShadingModel()

◆ ChooseMarkerShadingModel()

◆ clear()

◆ Create()

◆ getProgramBits()

◆ getStdProgram()

◆ IsEmpty()

◆ IsSameContext()

◆ IsSameView()

◆ LightSourceState()

◆ LocalOrigin()

◆ MaterialState()

◆ ModelWorldState()

◆ OitState()

◆ pointSpriteAlphaSrc()

◆ pointSpriteShadingSrc()

◆ prepareStdProgramFboBlit()

◆ prepareStdProgramFont()

◆ prepareStdProgramGouraud()

◆ prepareStdProgramLight()

◆ prepareStdProgramOitCompositing()

◆ prepareStdProgramPhong()

◆ prepareStdProgramStereo()

◆ prepareStdProgramUnlit()

◆ ProjectionState()

◆ PushClippingState()

◆ PushLightSourceState()

◆ PushMaterialState()

◆ PushModelWorldState()

◆ PushOitState()

◆ PushProjectionState()

◆ PushState()

◆ PushWorldViewState()

◆ RevertClippingState()

◆ SetContext()

◆ SetLastView()

◆ SetLocalOrigin()

◆ SetOitState()

◆ SetShadingModel()

◆ ShaderPrograms()

◆ ShadingModel()

◆ stdComputeLighting()

◆ switchLightPrograms()

◆ Unregister()

◆ UpdateClippingState()

◆ UpdateLightSourceState()

◆ UpdateLightSourceStateTo()

◆ UpdateMaterialState()

◆ UpdateMaterialStateTo()

◆ UpdateModelWorldStateTo()

◆ UpdateProjectionStateTo()

◆ UpdateWorldViewStateTo()

◆ WorldViewState()

Field Documentation

◆ myBlitProgram

◆ myClippingState

◆ myClipPlaneArray

◆ myClipPlaneArrayFfp

◆ myContext

◆ myFfpProgram

◆ myFontProgram