func PolygonOffset(factor float32, units float32) {
	C.glowPolygonOffset(gpPolygonOffset, (C.GLfloat)(factor), (C.GLfloat)(units))
}
func PolygonOffset(factor float32, units float32) {
	C.glowPolygonOffset(gpPolygonOffset, (C.GLfloat)(factor), (C.GLfloat)(units))
}
func PolygonOffset ( factor float32 , units float32 ) { C . glowPolygonOffset ( gpPolygonOffset , ( C . GLfloat ) ( factor ) , ( C . GLfloat ) ( units ) ) }
// set the scale and units used to calculate depth values
set the scale and units used to calculate depth values