Shader variable access

Classes
class	oglplus::FragDataSlot
	Type for the fragment data output slot (implementation-dependent limited) number. More...
class	oglplus::ProgVarGetSetOps< OpsTag, tag::Uniform, T >
	Encapsulates uniform value setting functionality. More...
class	oglplus::UniformSubroutines
	Encapsulates the uniform subroutine setting operations. More...
class	oglplus::ProgVarGetSetOps< OpsTag, tag::VertexAttrib, T >
	Encapsulates vertex attribute value set functionality. More...
class	oglplus::VertexAttribSlot
	Type for the vertex attribute slot (implementation-dependent limited) number. More...

Typedefs
typedef ProgVar < tag::ImplicitSel, tag::FragData, tag::NoTypecheck, void >	oglplus::FragData
	Encapsulates frag data operations. More...
typedef ProgVar < tag::ImplicitSel, tag::UniformBlock, tag::NoTypecheck, void >	oglplus::UniformBlock
	Encapsulates uniform block operations. More...

Functions
	oglplus::OGLPLUS_DECLARE_PROG_VAR (VertexAttrib, tag::ImplicitSel, tag::VertexAttrib, tag::NoTypecheck) class VertexArrayAttrib
	Encapsulates vertex array attribute functionality. More...

Detailed Description

Classes in this group are used for access to the format and values of shading language program variables, like uniforms and vertex attributes or vertex attribute arrays.

Typedef Documentation

typedef ProgVar< tag::ImplicitSel, tag::FragData, tag::NoTypecheck, void> oglplus::FragData

Encapsulates frag data operations.

See Also

FragData

typedef ProgVar< tag::ImplicitSel, tag::UniformBlock, tag::NoTypecheck, void> oglplus::UniformBlock

Encapsulates uniform block operations.

See Also

Uniform

Requires OpenGL 3.1 or the GL_ARB_uniform_buffer_object extension.

Function Documentation

oglplus::OGLPLUS_DECLARE_PROG_VAR	(	VertexAttrib	,
		tag::ImplicitSel	,
		tag::VertexAttrib	,
		tag::NoTypecheck
	)

Encapsulates vertex array attribute functionality.

References the vertex attribute array at location

Related OpenGL symbols:

glGetAttribLocation

References the vertex attribute array at location

Related OpenGL symbols:

glGetAttribLocation

References the vertex attrib array identifier of the program

Related OpenGL symbols:

glGetAttribLocation

Setup the properties of this vertex attribute array

Equivalent to

Pointer(valuer_per_vertex, data_type, false, 0, NULL)

if data_type is DataType::Float or to

LPointer(valuer_per_vertex, data_type, 0, NULL)

if data_type is DataType::Double or to

IPointer(valuer_per_vertex, data_type, 0, NULL)

otherwise.

Note

Consider using the templated version of Setup(), because it is more portable. For example instead of:

attr.Setup(3, DataType::Float);

use

attr.Setup<Vec3f>();

or

attr.Setup<GLfloat>(3);

See Also

Pointer

IPointer

LPointer

Related OpenGL symbols:

glVertexAttribPointer

Setup the properties of this vertex attribute array

See Also

Pointer

IPointer

LPointer

Related OpenGL symbols:

glVertexAttribPointer

Setup the properties of this vertex attribute array

Related OpenGL symbols:

glVertexAttribPointer

Setup the properties of this vertex attribute array

Related OpenGL symbols:

glVertexAttribPointer

Setup the properties of this vertex attribute array

Related OpenGL symbols:

glVertexAttribPointer

Setup the format of this vertex attribute array

Related OpenGL symbols:

glVertexAttribFormat

Setup the format of this vertex attribute array

Related OpenGL symbols:

glVertexAttribIFormat

Setup the format of this vertex attribute array

Related OpenGL symbols:

glVertexAttribLFormat

Enables this vertex attribute array

Related OpenGL symbols:

glEnableVertexArrayAttrib

Disables this vertex attribute array

Related OpenGL symbols:

glDisableVertexArrayAttrib

References oglplus::Double, and oglplus::Float.