Attribute Struct Reference

The definition of a vertex attribute, such as a position vector, or a texture coordinate. More...

Public Member Functions
	Attribute ()
	Constructor creating an empty attribute definition. More...
	Attribute (const std::string &name, GLuint size, GLboolean normalized, GLuint type)
	Constructor creating an attribute with the properties. More...
int	getComponentSize () const
	Computes the number of bytes per component. More...

Static Public Member Functions
static int	getComponentSizeStatic (GLuint type)
	Computes the number of bytes per component for a given GL type. More...

Public Attributes
std::string	name
	Name of the attribute, as specified in the shader code. More...
GLuint	size = 0
	Number of components per vertex attribute. More...
GLboolean	normalized = GL_FALSE
	Specifies whether certain types should be normalized before accessed by shaders. More...
GLuint	type = GL_FLOAT
	GL type of each component in the array. More...

Detailed Description

The definition of a vertex attribute, such as a position vector, or a texture coordinate.

Vertex attributes are defined by their name, and the type of data they contain. For example, 2D texture coordinates are float vectors of width two. Attributes are associated with shaders and meshes. They determine how the data in a mesh should be read by the shader.

Constructor & Destructor Documentation

Attribute::Attribute

(

)

Constructor creating an empty attribute definition.

Attribute::Attribute	(	const std::string &	name,
		GLuint	size,
		GLboolean	normalized,
		GLuint	type
	)

Constructor creating an attribute with the properties.

Parameters

name	Name of the attribute
size	Number of components per vertex attribute
normalized	Specifies whether certain types should be normalized before accessed
type	GL type of each component in the array

Member Function Documentation

int Attribute::getComponentSize ( ) const

inline

Computes the number of bytes per component.

Returns

Number of bytes per component

static int Attribute::getComponentSizeStatic ( GLuint  type )

static

Computes the number of bytes per component for a given GL type.

Parameters

type	GL type to get the size of

Returns

Number of bytes per component

Member Data Documentation

std::string Attribute::name

Name of the attribute, as specified in the shader code.

GLboolean Attribute::normalized = GL_FALSE

Specifies whether certain types should be normalized before accessed by shaders.

GLuint Attribute::size = 0

Number of components per vertex attribute.

GLuint Attribute::type = GL_FLOAT

GL type of each component in the array.