SRT Files
SRT Files are the mesh files for displaying SpeedTree items such as trees or grass.
SpeedTree was developed by IDVInc. N3V Games are licensed by IDVInc to use the SpeedTree format in TS2009 onwards.
The SRT file contains all of the geometric and texture mapping data needed to render a tree object as well as data for wind movement animation. A plugin dll is supplied by IDVInc for Trainz to display SpeedTree assets.
SpeedTree assets must be built using a fully licensed version of SpeedTree.
N3V Games provides no editing or manipulation programs for SpeedTree files. The game has adjustments for the wind movement effect in the environment section of Surveyor.
Reverse engineered files from the UDK version of SpeedTree are prohibited for Trainz use under the terms of the IDVInc license.