OpenGL TransformFeedback Object. More...

#include <TransformFeedback.hpp>

Inheritance diagram for TransformFeedback:

Public Member Functions
	TransformFeedback ()=default

	~TransformFeedback ()

virtual void	init () override
	Generates a new TransformFeedback name to manage. More...

virtual void	cleanup () override
	Destroy managed TransformFeedback object. More...

void	bind () const
	Binds the TransformFeedback object. More...

void	bindBuffer (GLuint index, const Buffer &buffer, GLintptr offset=0, GLsizeiptr size=0)
	Binds the specified buffer to index for this TransformFeedback Object. More...

void	draw (Primitive primitiveType) const
	Draw using this transform feedback. More...

void	drawInstanced (Primitive primitiveType, GLuint instanceCount) const
	Draw using this transform feedback. More...

void	drawStream (Primitive primitiveType, GLuint stream) const
	Draw using this transform feedback. More...

void	drawStreamInstanced (Primitive primitiveType, GLuint stream, GLuint instanceCount) const
	Draw using this transform feedback. More...

Public Member Functions inherited from OpenGLObject
	OpenGLObject ()

	OpenGLObject (GLuint handle)
	Constructs a instance managing an existing OpenGL Object. More...

	OpenGLObject (const OpenGLObject &)=default

	OpenGLObject (OpenGLObject &&)=default

OpenGLObject &	operator= (const OpenGLObject &)=default

OpenGLObject &	operator= (OpenGLObject &&)=default

virtual	~OpenGLObject ()

GLuint	getName () const
	Returns OpenGL name of the object. More...

void	setName (GLuint n)
	Sets the OpenGL name of the object managed by this instance /!\ Use with caution ! (assignment operator is probably what you're looking for) More...

virtual bool	isValid () const
	Returns true if the object seems valid. More...

	operator bool () const
	Syntactic sugar for isValid(). More...

Static Public Member Functions
static void	unbind ()
	Unbinds any currently bound TransformFeedback object (back to the default one (0)). More...

static void	begin (Primitive primitiveType=Primitive::Triangles)
	Begins a transform feedback operation, using the currently bound container object (TFO, default (0) is a valid option). More...

static void	end ()
	Ends a transform feedback operation. More...

static void	pause ()
	Pauses a transform feedback operation. More...

static void	resume ()
	Resumes a transform feedback operation. More...

static void	draw (Primitive primitiveType, GLuint transformFeedbackObject)
	Wrapper arround glDrawTransformFeedback. More...

static void	drawInstanced (Primitive primitiveType, GLuint transformFeedbackObject, GLuint instanceCount)
	Wrapper arround glDrawTransformFeedbackInstanced. More...

static void	drawStream (Primitive primitiveType, GLuint transformFeedbackObject, GLuint stream)
	Wrapper arround glDrawTransformFeedbackStream. More...

static void	drawStreamInstanced (Primitive primitiveType, GLuint transformFeedbackObject, GLuint stream, GLuint instanceCount)
	Wrapper arround glDrawTransformFeedbackStreamInstanced. More...

static void	enableRasterization ()
	Enable rasterization (default behavior). More...

static void	disableRasterization ()
	Disable rasterization (useful for TransformFeedback). More...

Additional Inherited Members
Protected Attributes inherited from OpenGLObject
GLuint	_handle
	OpenGL name of the managed object. More...

Detailed Description

OpenGL TransformFeedback Object.

Constructor & Destructor Documentation

TransformFeedback::TransformFeedback ( )

default

TransformFeedback::~TransformFeedback ( )

Member Function Documentation

void TransformFeedback::begin ( Primitive primitiveType = Primitive::Triangles )

inlinestatic

Begins a transform feedback operation, using the currently bound container object (TFO, default (0) is a valid option).

Parameters

primitiveType Type of primitives captured by the transform feedback. Must be Points, Lines or Triangles (default).

See also: end

void TransformFeedback::bind ( ) const

inline

Binds the TransformFeedback object.

See also: unbind()

void TransformFeedback::bindBuffer	(	GLuint	index,
		const Buffer &	buffer,
		GLintptr	offset = `0`,
		GLsizeiptr	size = `0`
	)

Binds the specified buffer to index for this TransformFeedback Object.

Note: This effectively binds the TransformFeedback Object (calls bind()).

Parameters

index	Binding Point
buffer	Buffer to bind
offset	Starting offset in basic machine unit (optional, default: 0)
size	Amount of data in machine unit to bind (optional, default: 0, means the entire buffer)

See also: bind()

void TransformFeedback::cleanup ( )

overridevirtual

Destroy managed TransformFeedback object.

Implements OpenGLObject.

void TransformFeedback::disableRasterization ( )

inlinestatic

Disable rasterization (useful for TransformFeedback).

Todo:

Move this elsewhere ? (If we have a context class one day...)

See also: GL_RASTERIZER_DISCARD

void TransformFeedback::draw ( Primitive primitiveType ) const

inline

Draw using this transform feedback.

Parameters

primitiveType Type of primitives to draw.

void TransformFeedback::draw	(	Primitive	primitiveType,
		GLuint	transformFeedbackObject
	)

inlinestatic

Wrapper arround glDrawTransformFeedback.

Parameters

primitiveType	Type of primitives to draw.
transformFeedbackObject	Name of a TransformFeedback Object from which to retrieve a primitive count (0 for the default one is a valid value).

void TransformFeedback::drawInstanced	(	Primitive	primitiveType,
		GLuint	instanceCount
	)		const

inline

Draw using this transform feedback.

Parameters

primitiveType	Type of primitives to draw.
instanceCount	Number of instances to draw.

void TransformFeedback::drawInstanced	(	Primitive	primitiveType,
		GLuint	transformFeedbackObject,
		GLuint	instanceCount
	)

inlinestatic

Wrapper arround glDrawTransformFeedbackInstanced.

Parameters

primitiveType	Type of primitives to draw.
transformFeedbackObject	Name of a TransformFeedback Object from which to retrieve a primitive count (0 for the default one is a valid value).
instanceCount	Number of instances to draw.

void TransformFeedback::drawStream	(	Primitive	primitiveType,
		GLuint	stream
	)		const

inline

Draw using this transform feedback.

Parameters

primitiveType	Type of primitives to draw.
stream	Stream transform buffer from which to retrieve a primitive count.

void TransformFeedback::drawStream	(	Primitive	primitiveType,
		GLuint	transformFeedbackObject,
		GLuint	stream
	)

inlinestatic

Wrapper arround glDrawTransformFeedbackStream.

Parameters

primitiveType	Type of primitives to draw.
transformFeedbackObject	Name of a TransformFeedback Object from which to retrieve a primitive count (0 for the default one is a valid value).
stream	Stream transform buffer from which to retrieve a primitive count.

Todo:: add overload for Buffer (instead of raw stream).

void TransformFeedback::drawStreamInstanced	(	Primitive	primitiveType,
		GLuint	stream,
		GLuint	instanceCount
	)		const

inline

Draw using this transform feedback.

Parameters

primitiveType	Type of primitives to draw.
stream	Stream transform buffer from which to retrieve a primitive count.
instanceCount	Number of instances to draw.

void TransformFeedback::drawStreamInstanced	(	Primitive	primitiveType,
		GLuint	transformFeedbackObject,
		GLuint	stream,
		GLuint	instanceCount
	)

inlinestatic

Wrapper arround glDrawTransformFeedbackStreamInstanced.

Parameters

primitiveType	Type of primitives to draw.
transformFeedbackObject	Name of a TransformFeedback Object from which to retrieve a primitive count (0 for the default one is a valid value).
stream	Stream transform buffer from which to retrieve a primitive count.
instanceCount	Number of instances to draw.

Todo:: add overload for Buffer (instead of raw stream).

void TransformFeedback::enableRasterization ( )

inlinestatic

Enable rasterization (default behavior).

Todo:

Move this elsewhere ? (If we have a context class one day...)

See also: GL_RASTERIZER_DISCARD

void TransformFeedback::end ( )

inlinestatic

Ends a transform feedback operation.

See also: begin

void TransformFeedback::init ( )

overridevirtual

Generates a new TransformFeedback name to manage.

Implements OpenGLObject.

void TransformFeedback::pause ( )

inlinestatic

Pauses a transform feedback operation.

void TransformFeedback::resume ( )

inlinestatic

Resumes a transform feedback operation.

void TransformFeedback::unbind ( )

inlinestatic

Unbinds any currently bound TransformFeedback object (back to the default one (0)).

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

include/TransformFeedback.hpp
src/TransformFeedback.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation