Kevin Caccamo has created a new tool to make modding Wing Commander Prophecy & Secret Ops easier. Big projects like Standoff with experienced modding teams might be what come to mind when you think of Vision Engine editing, but there are many smaller groups and individuals poking around at the code. Look no further than Lt.Overload's Missions, danr's Standoff mods or WC Collateral Damage for some recent examples. Kevin's program takes .OBJ files and turns them into Pascal code which can be used by WCPPascal. Try it out here!
I've released a new tool for you aspiring modders out there... It's a converter that reads OBJ files and writes WCPPascal source code, which can then be compiled into an IFF using WCPPascal. The program is written in Java and the source code is included in the download.
It's still a beta version, so it may not work for some models. If you have any problems, post a description of the problem and a screenshot if necessary.
The converter is currently limited to 4096 polygons and 4096 vertices.