public void LookAt(Vector3 pos, Vector3 at, Vector3 up)
{
Check(Rpr.CameraLookAt(_handle, pos.X, pos.Y, pos.Z, at.X, at.Y, at.Z, up.X, up.Y, up.Z));
}
public void LookAt(float posx, float posy, float posz, float atx, float aty, float atz, float upx, float upy, float upz)
{
Check(Rpr.CameraLookAt(_handle, posx, posy, posz, atx, aty, atz, upx, upy, upz));
}