glVertexPointer man page on DigitalUNIX

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glVertexPointer(3G)					   glVertexPointer(3G)

       glVertexPointer - define an array of vertex data

       void glVertexPointer(
	       GLint size,
	       GLenum type,
	       GLsizei stride,
	       const GLvoid *pointer );

       Specifies the number of coordinates per vertex; must be 2, 3, or 4. The
       initial value is 4.  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.	  Specifies  the  byte	offset
       between	consecutive  vertexes. If stride is 0, the vertexes are under‐
       stood to be tightly packed in the array. The initial value is 0.	 Spec‐
       ifies  a	 pointer  to  the  first coordinate of the first vertex in the
       array. The initial value is 0.

       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 vertexes
       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 pointer 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 vertexes and	vertex
       attributes   and glDrawElements() to construct a sequence of primitives
       by indexing vertexes and vertex attributes.

       glVertexPointer() is available  only  if	 the  GL  version  is  1.1  or

       The  vertex  array  is initially disabled and isn't accessed when glAr‐
       rayElement(), 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

       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 glPushClien‐
       tAttrib() and glPopClientAttrib() instead.

       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.

       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

       glArrayElement(3),   glColorPointer(3),	 glDrawArrays(3),   glDrawEle‐
       ments(3),  glDrawRangeElements(3),  glEdgeFlagPointer(3),  glEnable(3),
       glGetPointerv(3),  glIndexPointer(3), glInterleavedArrays(3), glNormal‐
       Pointer(3),  glPopClientAttrib(3),  glPushClientAttrib(3),  glTexCoord‐


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