Any optimization tips for static meshes created from BSPs?

The way I went about building a house in my level is by creating all the interior and exterior walls with BSP, then converting them into static meshes.

After building lighting, I get extremely low fps in and around the house. Also the exterior of the house is basically black for some reason.

Can anyone provide some advice on fixing the problems I’m having? I included 2 pictures showing the fps I get looking at one area of my level, and the fps I get looking at the houses in my level.



I would also really like help with this problem

Your going to want to export these to a 3D modeling program to clean things up, in most cases you should be building your pieces out of meshes built in the 3D program in the first place instead of in editor.

BSP mesh are not supposed to be in a final game.