Environmental light error

[dabmasterars]

I wanted to make an optimized version of pl_barnblitz, but after compiling, every displacement and brush went black despite the props still lighted by light_env. Everything looks fine if you enable "3D Lighting preview" in Hammer.

Please help me fix this. Below is a screenshot of the map.

 

[Fiddleford]

Barnblitz uses a prop in its 3d skybox(skybox_trees_snowpine_bb001) which causes these ugly shadows when the map is compiled with fast lighting settings. To fix this you can either disable shadows from the prop or compile with the map with final lighting(for more information look here https://nodraw.net/2010/12/lighting-compile-options/)