For best results switch off the automatic resolution before recording the animation. Contouring Press 'C' to turn contouring on and off. The contour lines will appear 'broken' unless the program is running at high resolution. Refer to the resolution section. Lighting Press 'S' to switch specular lighting on and off.
Specular lighting makes the surface appear shiny.
Press 'D' to switch directional lighting on and off. You can measure the distance and height difference between two points by using the middle mouse button. Press the middle mouse button on the model to select the first point. Press it again to select the second point. On selecting the second point the distance, height difference and gradient is calculated and displayed on the screen.