Yp Ombre

YP Ombre is the french version of YP Shadow. Learn how a shadow is formed! YP Shadow simulates a light source projecting the shadow of an opaque body on a screen. Using the mouse, it is easy to change the position and size of the light source, position and size of the opaque body, and position of the screen. YP Shadow draws the rays of light used to mark the boundaries of the umbra and the penumbra, and it displays the shadow as it appears on the screen. Yves Pelletier pelletier@kagi.com http://www.kagi.com/pelletier