Thanks O_b! What do you mean about the mountains?
The AA settings were indeed high, but not at 12 or 13....Actually, the rendersettings were detail 1, GI 2/2 and AA 18!
The model is from Xfrog, Europe 1 collection and it is a Crack Willow.
The scene contains 3 grass populations at VHQ settings, 1 VHQ flower population, 6 VHQ tree populations and the model on the foreground with an Ivy attached to it in 3DSMax.
I've spent well over a month on designing and testing this scene. Lots and lots of testing for water settings, population densities and placement, terrain displacement and lighting.
Made about 50 incremental tgd-versions and probably well over 100 test-renders.
The final image is rendered at 1500x1000px and took about 50 hours on my quadcore machine. Took many split renders to manage this RAM-demanding-scene
A lot of the masking of the populations is done by using combinations of positioned cameras connected to distance shaders which then act as blendshader for the density fractals of the populations. This gave me quite good control where I exactly wanted the populations (not) to be. Unfortunately at that moment I wasn't aware of Nikita's camera-mask technique which probably would have saved some time, but not that much.
I can show some more of the techniques involved in this image, but that will be a bit later...I'm a bit short on time.
Everybody just feel free to ask.
Martin