[=;198056]
Circular argument. People don’t use BSP because the tools for it are bad.
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No, people don’t use it much because it is a dated method of creating a level. Today it is only really used for blocking out parts of your level, then converted into a static mesh and modeled in a 3d creation tool.
The engine is optimized for static meshes, not editable BSP sections, and the performance difference is massive, with the reason being they are still in an editable state, don’t have UV’s / Lightmaps etc, etc.
Their usefulness is very limited in modern game creation, it was a big deal back in quakes days as levels were basically just a bunch of hallways rooms and right angles everywhere, but is no longer the case when it comes to level design.