Wraps the OpenGL function glDrawArrays(). More...

#include <DrawArrays.hpp>

Inheritance diagram for vl::DrawArrays:

Public Member Functions
	DrawArrays ()
	DrawArrays (EPrimitiveType primitive, int start, int count, int instances=1)
DrawArrays &	operator= (const DrawArrays &other)
virtual ref< DrawCall >	clone () const
	Returns a clone of the draw call.
virtual void	deleteBufferObject ()
	Deletes the index buffer's BufferObject.
virtual void	updateDirtyBufferObject (EBufferObjectUpdateMode)
	Updates the index buffer's BufferObject if marked as dirty.
virtual void	render (bool) const
	Executes the draw call.
void	setStart (int start)
	sets the starting vertex for the rendering.
int	start () const
	returns the starting vertex for the rendering.
void	setCount (int count)
	sets the number of vertices to be rendered.
int	count () const
	returns the number of vertices to be rendered.
void	setInstances (int instances)
	Sets the number of instances for this set of primitives.
int	instances () const
	Returns the number of instances for this set of primitives.
TriangleIterator	triangleIterator () const
	Returns a TriangleIterator used to iterate through the triangles of a DrawCall.
IndexIterator	indexIterator () const
	Returns a IndexIterator used to iterate through the virtual indices of a DrawCall.
Protected Attributes
int	mStart
int	mCount
int	mInstances

Detailed Description

Wraps the OpenGL function glDrawArrays().

See vl::DrawCall for an overview of the different draw call methods.

This class wraps the following OpenGL functions:

glDrawArrays (http://www.opengl.org/sdk/docs/man4/xhtml/glDrawArrays.xml)
glDrawArraysInstanced (http://www.opengl.org/sdk/docs/man4/xhtml/glDrawArraysInstanced.xml)

Supports:

Multi instancing: YES
Base vertex: N/A
Primitive restart: N/A

DrawArrays, DrawElements, MultiDrawElements and DrawRangeElements are used by Geometry to define a set of primitives to be rendered.

See also:: Geometry::drawCalls(), DrawCall, DrawElements, MultiDrawElements, DrawRangeElements, Geometry, Actor

Definition at line 57 of file DrawArrays.hpp.

Constructor & Destructor Documentation

vl::DrawArrays::DrawArrays ( ) [inline]

Definition at line 62 of file DrawArrays.hpp.

References mInstances, vl::DrawCall::mType, vl::PT_TRIANGLES, and VL_DEBUG_SET_OBJECT_NAME.

Referenced by clone().

vl::DrawArrays::DrawArrays	(	EPrimitiveType	primitive,
		int	start,
		int	count,
		int	instances = `1`
	)		`[inline]`

Definition at line 69 of file DrawArrays.hpp.

References instances(), mInstances, vl::DrawCall::mType, and VL_DEBUG_SET_OBJECT_NAME.

Member Function Documentation

DrawArrays& vl::DrawArrays::operator= ( const DrawArrays & other ) [inline]

Definition at line 77 of file DrawArrays.hpp.

References mCount, mInstances, and mStart.

virtual ref<DrawCall> vl::DrawArrays::clone ( ) const [inline, virtual]

Returns a clone of the draw call.

Implements vl::DrawCall.

Definition at line 86 of file DrawArrays.hpp.

References count(), DrawArrays(), instances(), vl::DrawCall::primitiveType(), and start().

virtual void vl::DrawArrays::deleteBufferObject ( ) [inline, virtual]

Deletes the index buffer's BufferObject.

Implements vl::DrawCall.

Definition at line 91 of file DrawArrays.hpp.

virtual void vl::DrawArrays::updateDirtyBufferObject ( EBufferObjectUpdateMode ) [inline, virtual]

Updates the index buffer's BufferObject if marked as dirty.

Implements vl::DrawCall.

Definition at line 92 of file DrawArrays.hpp.

virtual void vl::DrawArrays::render ( bool use_bo ) const [inline, virtual]

Executes the draw call.

Implements vl::DrawCall.

Definition at line 94 of file DrawArrays.hpp.

References vl::DrawCall::applyPatchParameters(), count(), vl::Log::error(), vl::getGLErrorString(), instances(), vl::DrawCall::primitiveType(), start(), VL_TRAP, and vl::Log::warning().

void vl::DrawArrays::setStart ( int start ) [inline]

sets the starting vertex for the rendering.

Definition at line 118 of file DrawArrays.hpp.

References mStart, and start().

int vl::DrawArrays::start ( ) const [inline]

returns the starting vertex for the rendering.

Definition at line 121 of file DrawArrays.hpp.

References mStart.

Referenced by clone(), vl::VLXClassWrapper_DrawCall::exportDrawCall(), render(), and setStart().

void vl::DrawArrays::setCount ( int count ) [inline]

sets the number of vertices to be rendered.

Definition at line 124 of file DrawArrays.hpp.

References count(), and mCount.

int vl::DrawArrays::count ( ) const [inline]

returns the number of vertices to be rendered.

Definition at line 127 of file DrawArrays.hpp.

References mCount.

Referenced by clone(), vl::VLXClassWrapper_DrawCall::exportDrawCall(), render(), and setCount().

void vl::DrawArrays::setInstances ( int instances ) [inline]

Sets the number of instances for this set of primitives.

Definition at line 130 of file DrawArrays.hpp.

References instances(), and mInstances.

int vl::DrawArrays::instances ( ) const [inline, virtual]

Returns the number of instances for this set of primitives.

Reimplemented from vl::DrawCall.

Definition at line 133 of file DrawArrays.hpp.

References mInstances.

Referenced by clone(), DrawArrays(), vl::VLXClassWrapper_DrawCall::exportDrawCall(), render(), and setInstances().

TriangleIterator vl::DrawArrays::triangleIterator ( ) const [inline, virtual]

Returns a TriangleIterator used to iterate through the triangles of a DrawCall.

Basically the iterator tesselates in triangles any DrawCall of type: PT_TRIANGLES, PT_TRIANGLE_STRIP PT_TRIANGLE_FAN, PT_POLYGON, PT_QUADS, PT_QUAD_STRIP.

Implements vl::DrawCall.

Definition at line 135 of file DrawArrays.hpp.

References vl::ref< T >::get(), mCount, mStart, and vl::DrawCall::primitiveType().

IndexIterator vl::DrawArrays::indexIterator ( ) const [inline, virtual]

Returns a IndexIterator used to iterate through the virtual indices of a DrawCall.

This