if (VertCoord_attr > 0) {
/* We want the VertCoord attrib to have position zero so that
* the call to glVertexAttrib(0, xyz) triggers vertex processing.
* Otherwise, if TexCoord0 or TexCoord1 gets position 0 we'd have
* to set that attribute last (which is a PITA to manage).
*/
if (VertCoord_attr > 0) {
/* We want the VertCoord attrib to have position zero so that
* the call to glVertexAttrib(0, xyz) triggers vertex processing.
* Otherwise, if TexCoord0 or TexCoord1 gets position 0 we'd have
* to set that attribute last (which is a PITA to manage).
*/