Is it possible to export bsp brushes to Blender?
- Use brush in level.
- Select brush actor(s) in World Outliner. If you are using multiple brushes to create the shape (additive and subtractive), make sure to select all the brushes.
- In Details > Brush Settings, press Create Static Mesh.
- Find the mesh in the content browser.
- Right click on newly created static mesh, Asset Actions > Export.
- Open FBX in blender.
you should also be able to just select the bsp in the level, then go to file, then export selected. that should export it as a fbx for you. I used a similar method to export a entire blocked our scene (export all).