func DrawTransformFeedbackStreamInstanced(mode uint32, id uint32, stream uint32, instancecount int32) {
	syscall.Syscall6(gpDrawTransformFeedbackStreamInstanced, 4, uintptr(mode), uintptr(id), uintptr(stream), uintptr(instancecount), 0, 0)
}
func DrawTransformFeedbackStreamInstanced(mode uint32, id uint32, stream uint32, instancecount int32) {
	syscall.Syscall6(gpDrawTransformFeedbackStreamInstanced, 4, uintptr(mode), uintptr(id), uintptr(stream), uintptr(instancecount), 0, 0)
}
// render multiple instances of primitives using a count derived from a specifed stream of a transform feedback object