This article describes how the elliptic body parts in Ecstatica are rendered.


In the Ecstatica data files there's a small nifty file called "shademap.dat". Let's have a look inside:
The left figure shows the color-channel of the shademap, the right figure shows the z-channel of the shademap
shademap_color.png shademap_z.png

The greyscale color values shown in the left image are mapped to a appropriately colored palette. The background of the sphere in the left image has color values >= 128 so this is propably used to mask the background.

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