glVertexAttribPointer Function

GL_APICALL void GL_APIENTRY glVertexAttribPointer(
     GLuint index,
     GLint size,
     GLenum type,
     GLboolean normalized,
     GLsizei stride,
     const void * ptr
);

	Name	Description
in	index	Vertex attribute index number
in	size	Number of vertex elements
in	type	Vertex data type
in	normalized	Whether to normalize values
in	stride	Number of bytes in the stride
in	ptr	Pointer to vertex data (when vertex buffer object 0 is bound)

No values are returned.

Configures a vertex attribute array.

Set index to a value that is greater than or equal to 0 and at least one less than the value that can be obtained by glGetIntegerv with GL_MAX_VERTEX_ATTRIBS specified.

Set size to the number of components: either 1, 2, 3, or 4.

Set type to the data type: GL_FLOAT, GL_SHORT, GL_BYTE, or GL_UNSIGNED_BYTE. You cannot specify GL_UNSIGNED_SHORT or GL_FIXED from the OpenGL ES 2.0 standard.

You must specify GL_FALSE for the normalized argument.

When vertex buffer objects are not in use, set ptr to a pointer to vertex data. When vertex buffer objects are in use, set ptr to the offset of the region to start using within the vertex data currently bound to GL_ARRAY_BUFFER. You must set ptr to an address or offset value that is aligned to the type specified by type.

Set stride to the byte offset between consecutive vertex data. When 0 is specified, vertex data is handled as if there are no gaps between it.

This function generates the following errors.

GL_INVALID_VALUE	The index or size argument was set to an invalid value.
GL_INVALID_VALUE	The stride argument was set to a negative value.
GL_INVALID_ENUM	The type argument was set to an invalid value.
GL_INVALID_OPERATION	The normalized argument was set to an invalid value.

2010/08/11

Revised description for the normalized argument.

2010/01/07

Initial version.