func BindSampler(unit uint32, sampler uint32) {
	C.glowBindSampler(gpBindSampler, (C.GLuint)(unit), (C.GLuint)(sampler))
}
func BindSampler(unit uint32, sampler uint32) {
	C.glowBindSampler(gpBindSampler, (C.GLuint)(unit), (C.GLuint)(sampler))
}
// bind a named sampler to a texturing target