I rendered a few of my models and textures in C4 and I like it more and more.

Here is a machine of mine:




and another one:




And here is a test of one of my textures with different rendering modes:


normal-mapping:




parallax-mapping:




horizon-mapping:




Last one is impressive. It is better than parallax. It casts even shadows from materials on materials (self-shadowing) only from height map.

I will do some more experimenting with it. But up to now I am really impressed by the amount of lighting options, the optimized OpenGL shaders and the scene-management.
A quality demo with huge amount of details per zone should be possible there.