Contours

Example: Rheinfallregion in Switzerland.
Model of the built from this information Contour lines=Curves of given height.
Photo, texture and height map Contours

The height map was produced in a 3000x3000 pixel format using gimp from a 1:25'000 map. The textures were hand painted using an areal photograph and compairing it with the 1:25'0000 map. For this scene, we used rough (100 times smaller) textures and rendered the animations in Povray. Below is an areal photo of the region.

Math21a, O.Knill, 9/29/2001