Toggle Vertex Colors is a 3ds Max macro that builds a toggle button you can place in a menu or toolbar, switching on or off whether vertex colors are rendered. It makes changes only at render time, so the scene itself is left untouched.
The macro addresses a scenario in some game development settings, where exporters can't handle a max renderer implementation of vertex color maps. For marketing renders, all scene materials would otherwise have to be changed manually so vertex colors show up. This script replaces that manual process with one that is transparent to the user and doesn't alter the scene permanently.
It currently supports all native max materials and most plugin materials, including RenderWare, and is easily extended to accommodate other plugin material types. Toggle Vertex Colors was written by Jon Seagull, a consultant and technical director whose work spans custom tool creation and scripting for clients' 3D pipelines.