When loading a level in TresEd, make sure you set all options to maximum.
Other issues probably have to do with lighting and similar parameters. Take a look at the t-scripts from existing dinosaurs and copy those for your mesh before importing it...
_________________
Visit
The Carnivores Saga - a forum devoted to modding Action Forms'
Carnivores,
Carnivores 2 and
Carnivores: Ice Age games
Tres WIP: updated
T-Script Reference and
File Formats documents
Sound name listings for the
Demo (build 117),
Retail (build 116),
Beta 103,
Beta 99,
Beta 97,
Beta 96,
Build 55,
PC Gamer Alpha (build 32) and
E3 1998 Alpha (build 22) TPA files