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

#include <Graphic3d_ShaderProgram.hxx>

Inheritance diagram for Graphic3d_ShaderProgram:

Public Types
enum	ShaderName { ShaderName_UNKNOWN, ShaderName_Phong }
	The list of built-in GLSL programs. More...

Public Member Functions
	Graphic3d_ShaderProgram ()
	Creates new empty program object. More...

	Graphic3d_ShaderProgram (const Graphic3d_ShaderProgram::ShaderName theName)
	Creates program object from pre-defined shaders. Raises Standard_Failure exception if shader resources are unavailable. More...

virtual	~Graphic3d_ShaderProgram ()
	Releases resources of program object. More...

void	Destroy () const
	Releases resources of program object. More...

virtual Standard_Boolean	IsDone () const
	Checks if the program object is valid or not. More...

const TCollection_AsciiString &	GetId () const
	Returns unique ID used to manage resource in graphic driver. More...

const TCollection_AsciiString &	Header () const
	Returns GLSL header (version code and extensions). More...

void	SetHeader (const TCollection_AsciiString &theHeader)
	Setup GLSL header containing language version code and used extensions. Will be prepended to the very beginning of the source code. Example: More...

Standard_Boolean	AttachShader (const Handle< Graphic3d_ShaderObject > &theShader)
	Attaches shader object to the program object. More...

Standard_Boolean	DetachShader (const Handle< Graphic3d_ShaderObject > &theShader)
	Detaches shader object from the program object. More...

const Graphic3d_ShaderObjectList &	ShaderObjects () const
	Returns list of attached shader objects. More...

const Graphic3d_ShaderVariableList &	Variables () const
	Returns list of custom uniform variables. More...

template<class T >
Standard_Boolean	PushVariable (const TCollection_AsciiString &theName, const T &theValue)
	Pushes custom uniform variable to the program. More...

void	ClearVariables ()
	Removes all custom uniform variables from the program. 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 Handle_Standard_Type &	DynamicType () const
	Returns a type information object about this object. More...

Standard_Boolean	IsInstance (const 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 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...

virtual Handle_Standard_Transient	This () const
	Returns a Handle which references this object. Must never be called to objects created in stack. More...

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

Static Public Member Functions
static const TCollection_AsciiString &	ShadersFolder ()
	The path to GLSL programs determined from CSF_ShadersDirectory or CASROOT environment variables. More...

Detailed Description

This class is responsible for managing shader programs.

Member Enumeration Documentation

enum Graphic3d_ShaderProgram::ShaderName

The list of built-in GLSL programs.

Enumerator
ShaderName_UNKNOWN	undefined program
ShaderName_Phong	per-pixel lighting (Phong shading)

Constructor & Destructor Documentation

Graphic3d_ShaderProgram::Graphic3d_ShaderProgram ( )

Creates new empty program object.

Graphic3d_ShaderProgram::Graphic3d_ShaderProgram ( const Graphic3d_ShaderProgram::ShaderName theName )

Creates program object from pre-defined shaders. Raises Standard_Failure exception if shader resources are unavailable.

virtual Graphic3d_ShaderProgram::~Graphic3d_ShaderProgram ( )

virtual

Releases resources of program object.

Member Function Documentation

Standard_Boolean Graphic3d_ShaderProgram::AttachShader ( const Handle< Graphic3d_ShaderObject > & theShader )

Attaches shader object to the program object.

void Graphic3d_ShaderProgram::ClearVariables ( )

Removes all custom uniform variables from the program.

void Graphic3d_ShaderProgram::Destroy ( ) const

Releases resources of program object.

Standard_Boolean Graphic3d_ShaderProgram::DetachShader ( const Handle< Graphic3d_ShaderObject > & theShader )

Detaches shader object from the program object.

const TCollection_AsciiString& Graphic3d_ShaderProgram::GetId ( ) const

inline

Returns unique ID used to manage resource in graphic driver.

const TCollection_AsciiString& Graphic3d_ShaderProgram::Header ( ) const

inline

Returns GLSL header (version code and extensions).

virtual Standard_Boolean Graphic3d_ShaderProgram::IsDone ( ) const

virtual

Checks if the program object is valid or not.

template<class T >

Standard_Boolean Graphic3d_ShaderProgram::PushVariable	(	const TCollection_AsciiString &	theName,
		const T &	theValue
	)

inline

Pushes custom uniform variable to the program.

void Graphic3d_ShaderProgram::SetHeader ( const TCollection_AsciiString & theHeader )

inline

Setup GLSL header containing language version code and used extensions. Will be prepended to the very beginning of the source code. Example:

#version 300 es

#extension GL_ARB_bindless_texture : require

const Graphic3d_ShaderObjectList& Graphic3d_ShaderProgram::ShaderObjects ( ) const

inline

Returns list of attached shader objects.

static const TCollection_AsciiString& Graphic3d_ShaderProgram::ShadersFolder ( )

static

The path to GLSL programs determined from CSF_ShadersDirectory or CASROOT environment variables.

Returns: the root folder with default GLSL programs.

const Graphic3d_ShaderVariableList& Graphic3d_ShaderProgram::Variables ( ) const

inline

Returns list of custom uniform variables.

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

Graphic3d_ShaderProgram.hxx

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation