//poruszanie obiektem
private void Window_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Up)
{
ModelGrid.RotateX(-moveit);
e.Handled = true;
}
else if (e.Key == Key.Down)
{
ModelGrid.RotateX(moveit);
e.Handled = true;
}
else if (e.Key == Key.Right)
{
ModelGrid.RotateY(moveit);
e.Handled = true;
}
else if (e.Key == Key.Left)
{
ModelGrid.RotateY(-moveit);
e.Handled = true;
}
}