Originally posted by NitroLiq
This doesn't solve your problem but if you're just using Terragen for a background matte, why not just composite it later? Just output it as an image file and map to a plane or something for a background while you're modeling. Then you can build forefront geometry in Maya and match the lighting of the Terragen render.
I thought about that. Also, I could import a greyscale hightfield from Terragen (as a TGA or something) and apply it as a displacement map to a flat surface. It's just frustrating that what should be the simple solution doesn't work.
That'll do donkey... that'll do...