Next build will have better error message
Glad to read that. In fact, missing error messages about unsupported maps are the show-stopper right now (also see Mantis).
Here´s some progress: changed/replaced all composite maps with Mix, Replaced ForestColor with CoronaMultimap (instance mode), kicked ForestEdge, simplified some materials.
1. Max version
2. Standalone version
3. Most interesting: the boosted difference (8bit screenshot -> difference in Photoshop and exposure+6 on top)
Rendertimes would be half of those of the stamp because both versions rendered on a single machine having 50% cpu available each. The number I like most is the white on black one in the top right corner of #2.
Good Luck!