func VertexBindingDivisor(bindingindex uint32, divisor uint32) {
	syscall.Syscall(gpVertexBindingDivisor, 2, uintptr(bindingindex), uintptr(divisor), 0)
}
func VertexBindingDivisor(bindingindex uint32, divisor uint32) {
	syscall.Syscall(gpVertexBindingDivisor, 2, uintptr(bindingindex), uintptr(divisor), 0)
}
// modify the rate at which generic vertex attributes     advance