glInterleavedArrays
- simultaneously specify and enable several interleaved arrays
C SPECIFICATION
void glInterleavedArrays(
GLenum format,
GLsizei stride,
const GLvoid *pointer )
PARAMETERS
format
Specifies the type of array to enable. Symbolic constants
GL_V2F,
GL_V3F,
GL_C4UB_V2F,
GL_C4UB_V3F,
GL_C3F_V3F,
GL_N3F_V3F,
GL_C4F_N3F_V3F,
GL_T2F_V3F,
GL_T4F_V4F,
GL_T2F_C4UB_V3F,
GL_T2F_C3F_V3F,
GL_T2F_N3F_V3F,
GL_T2F_C4F_N3F_V3F,
and
GL_T4F_C4F_N3F_V4F
are accepted.
stride
Specifies the offset in bytes between each aggregate array element.
DESCRIPTION
glInterleavedArrays lets you specify and enable individual color,
normal,
texture and vertex
arrays whose elements are part of a larger aggregate array element.
For some implementations, this is more efficient than specifying the arrays
separately.
If stride is 0, the aggregate elements are stored consecutively.
Otherwise, stride bytes occur between the beginning of one
aggregate array element and the beginning of the next aggregate array
element.
format serves as a ``key''
describing the extraction of individual arrays from the aggregate array.
If format contains a T, then texture coordinates are
extracted from the interleaved array. If C is present, color values
are extracted. If N is present, normal coordinates are extracted.
Vertex coordinates are always extracted.
The digits 2, 3, and 4 denote how many values are extracted.
F indicates that values are extracted as floating-point values.
Colors may also be extracted as 4 unsigned bytes if 4UB follows the
C. If a color is extracted as 4 unsigned bytes, the vertex
array element which follows is located at the first possible
floating-point aligned address.
NOTES
glInterleavedArrays is available only if the GL version is 1.1 or greater.
If glInterleavedArrays is called while compiling a display list, it is not
compiled into the list, and it is executed immediately.
Execution of glInterleavedArrays is not allowed between the execution of
glBegin and the corresponding execution of glEnd,
but an error may or may not be generated. If no error is generated,
the operation is undefined.
glInterleavedArrays is typically implemented on the client side.
Vertex array parameters are client-side state and are therefore not
saved or restored by glPushAttrib and glPopAttrib.
Use glPushClientAttrib and glPopClientAttrib instead.
When the GL_ARB_multitexture extension is supported, glInterleavedArrays
only updates the texture coordinate array for the active active texture
unit. The texture coordinate state for other client texture units is not
update, regardless if they are enabled or not.
ERRORS
GL_INVALID_ENUM is generated if format is not an accepted value.
GL_INVALID_VALUE is generated if stride is negative.
