pvpylot, I'm not sure what you mean by blurring of the figures - they are identical in the sun lit and the stage light lit scene.

David Hall, yes, I took the shape of the terrain into account (see the linked scene file). However, I don't have access to the actual topographic data set, so I did what CG artists usually do - look at the scene and estimate the ground curvature, and create an approximation of it that fits the ligting situation. There are undoubtly errors in the recreated topographic data, but I belive it is still accurate enough to show the point I was trying to make. Actually, the middle point of the terrain should probably be slightly higher, but this was just a quick lighting test and nothing more, so I didn't bother to spend too much time on getting the curvature of the shadows right. Instead, I focused on the length of them.

What I wanted to show was two things:

First, the terrain topography will indeed create different length of the shadows when the sun is used to light the scene. Artificial light is not needed for this. I believe the included scene file is unrefutable proof of this, if Cosmic Dave would bother to actually look at it.

And second, I wanted to show that the sun and only the sun can create the kind of shadows seen in the picture.


<font size=-1>[ This Message was edited by: M_Welander on 2002-06-03 13:00 ]</font>