private void ExportsceneTo3DSToolStripMenuItem_Click(object sender, EventArgs e)
{
SaveFileDialog d = new SaveFileDialog();
d.Filter = "*.3ds|*.3ds";
if (d.ShowDialog() == DialogResult.OK)
{
timer1.Enabled = false;
SceneMan.Exportscene3DS(d.FileName);
timer1.Enabled = true;
MessageBox.Show("Done.");
}
}