glVertexPointer man page on YellowDog

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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 )

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.	  Sym‐
	       bolic  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	 coor‐
       dinates	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  implemen‐
       tations;	 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 unde‐
       fined.

       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)

							   GLVERTEXPOINTER(3G)
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