func DepthRange(n float64, f float64) {
	C.glowDepthRange(gpDepthRange, (C.GLdouble)(n), (C.GLdouble)(f))
}
func DepthRange(n float64, f float64) {
	C.glowDepthRange(gpDepthRange, (C.GLdouble)(n), (C.GLdouble)(f))
}
func DepthRange ( n float64 , f float64 ) { C . glowDepthRange ( gpDepthRange , ( C . GLdouble ) ( n ) , ( C . GLdouble ) ( f ) ) }
// specify mapping of depth values from normalized device coordinates to window coordinates
specify mapping of depth values from normalized device coordinates to window coordinates