public virtual void printScreen(float x, float y, String txt)
{
RenderFontCommand cmd = new RenderFontCommand(this, x, y, txt, Color4.White);
cmd.execute();
}
public virtual void print3d(float x, float y, float z, String txt)
{
RenderFontCommand cmd = new RenderFontCommand(this, new Vector3(x, y, z), txt, Color4.White);
cmd.execute();
}