Well, dynamic population cannot perform wonders (we probably have to wait for VUE 9 or 10 for those...). All dynamic population does, is restricting the ecosystem population to what the camera can see. An infinite plane is pretty much the worst case scenario. Vue has to populate very far out and with a dense ecosystem this results in an enormous memory requirement.

I find that two approaches help in this situation:

• you can insert a low hilly terrain at the horizon (can be hidden by haze/fog) to cut off population at a reasonable distance

• you can switch to a spherical scene. If you use an earth scale radius (6400km), you wont notice the curvature, but it will help to reduce the scene population because the horizon will "curve down".

I have have used both of those tricks with good results.

Ciao
TD