This is an advanced hack that can only be required by other hacks.
This hack allows other hacks to add custom vertex shaders.
Command Line Arguments
This hack is affected by certain Command Line Arguments for the Mod Launcher.
Fixed an issue where UVs were wrong on Old Primitive Groups that had a colour list when using the "spheremap" PDDI shader provided by the Sphere Maps hack and the "refract" PDDI shader provided by the Refraction Shader Shader support hack.
Added this hack.