glVertexPointer man page on OpenBSD

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GLVERTEXPOINTER(3G)					   GLVERTEXPOINTER(3G)

NAME
       glVertexPointer - define an array of vertex data

C SPECIFICATION
       void glVertexPointer( GLint size,
	    GLenum type,
	    GLsizei stride,
	    const GLvoid *ptr )

       delim $$

PARAMETERS
       size   Specifies the number of coordinates per vertex; must be 2, 3, or
	      4. The initial value is 4.

       type   Specifies the data type of each coordinate in the array.
	      Symbolic constants GL_SHORT, GL_INT, GL_FLOAT, and GL_DOUBLE are
	      accepted. The initial value is GL_FLOAT.

       stride Specifies the byte offset between consecutive vertices. If
	      stride is 0, the vertices are understood to be tightly packed in
	      the array. The initial value is 0.

       ptr    Specifies a pointer to the first coordinate of the first vertex
	      in the array. The initial value is 0.

DESCRIPTION
       glVertexPointer specifies the location and data	of an array of vertex
       coordinates to use when rendering.  size specifies the number of
       coordinates per vertex and type the data type of the coordinates.
       stride specifies the byte stride from one vertex to the next allowing
       vertices and attributes to be packed into a single array or stored in
       separate arrays.	 (Single-array storage may be more efficient on some
       implementations; see glInterleavedArrays.)  When a vertex array is
       specified, size, type, stride, and ptr are saved as client-side state.

       To enable and disable the vertex array, call glEnableClientState and
       glDisableClientState with the argument GL_VERTEX_ARRAY. If enabled, the
       vertex array is used when glDrawArrays, glDrawElements, or
       glArrayElement is called.

       Use glDrawArrays to construct a sequence of primitives (all of the same
       type) from prespecified vertex and vertex attribute arrays.  Use
       glArrayElement to specify primitives by indexing vertices and vertex
       attributes  and glDrawElements to construct a sequence of primitives by
       indexing vertices and vertex attributes.

NOTES
       glVertexPointer is available only if the GL version is 1.1 or greater.

       The vertex array is initially disabled and isn't accessed when
       glArrayElement, glDrawElements or glDrawArrays is called.

       Execution of glVertexPointer 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.

       glVertexPointer 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.

ERRORS
       GL_INVALID_VALUE is generated if size is not 2, 3, or 4.

       GL_INVALID_ENUM is generated if type is is not an accepted value.

       GL_INVALID_VALUE is generated if stride is negative.

ASSOCIATED GETS
       glIsEnabled with argument GL_VERTEX_ARRAY
       glGet with argument GL_VERTEX_ARRAY_SIZE
       glGet with argument GL_VERTEX_ARRAY_TYPE
       glGet with argument GL_VERTEX_ARRAY_STRIDE
       glGetPointerv with argument GL_VERTEX_ARRAY_POINTER

SEE ALSO
       glArrayElement(3G), glColorPointer(3G), glDrawArrays(3G),
       glDrawElements(3G), glDrawRangeElements(3G), glEdgeFlagPointer(3G),
       glEnable(3G), glGetPointerv(3G), glIndexPointer(3G),
       glInterleavedArrays(3G), glNormalPointer(3G), glPopClientAttrib(3G),
       glPushClientAttrib(3G), glTexCoordPointer(3G)

								 March 1, 2011
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