VP3.0
Imagine and Turbo Silver use a very similar IFF-like file format, so Imagine
loads TS objects just fine. Imagine objects have a few extra hunks that
contain extra info that TS can't use. Turbo Silver 2.0 is a different beast
altogether – if you need to take TS 2.0 objects (say, from Impulse's old
"Terrain" program) to Imagine, you can use a translator program like
InterChange Plus.