I am a recent crossover from Bryce and am still learning much about C2. And I was never very good at terrain modeling anyhow but I have a few observations. C2 doesn't have the sky and terrain controls that Bryce does but it has enough for the basics and I think you can learn to improvise from there. For instance, terrains and their material maps can be exported from Bryce for use in C2, so design away in the DTE and export it. Panoramic mapping for 360 sky maps is easy in C2 also. Slope and altitude are variables in C2's shaders. There aren't any real preset shaders though, you'd have to create your own. The difference in rendering speeds, IMHO, more than makes up for any lack of features. Ed