You can design your mountains and valleys in Gaea and export high-resolution heightmaps and masks directly into 3ds Max for shading and scattering. 3. GrowFX (by Exlevel)
Native 3ds Max is not a terrain generator. It is a container. The magic—the erosion, the scatter, the realism—lives exclusively in the 3ds Max landscape plugin ecosystem. Invest in one today, and your backgrounds will stop looking like green carpets and start looking like a window to another world. 3ds max landscape plugin
If you want, I can: