Hi again!

My goal was to increase the realism of height_field rocks by separately 
texturing the edges, the sides, and the inside edges of the formation.

To meet this goal I employed an edge-finding pigment to determine the 
outside and inside edges of the rocks, and then used it as a patterned 
texture_map. To save time on the final render, I used Rune's illusion 
include library to project the edge data onto the rocks at render time.

The scene was rendered with low radiosity settings. Slight noise and a 
black border were added with the Gimp. I gave it a final pass with a 
POV-based, luminous color bleeding effect.

I still have farther to take this technique. Is it looking promising so 
far? Questions, comments, appreciated as always~

~Sam

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