Source Engine BSP Compiler Incremental Rebuild Limitation After Texture Changes
Texture Scale Modifications Require Full BSP Recompile The Source engine's standard compile pipeline (VBSP, VVIS, VV) processes entire map geometry and lighting models during each build. When a single texture's scale or material parameter is modified, the compiler does not recognize this as an isolated change and instead rebuilds all lighting data from scrat
sourceengine