Light leaks through brushes and patches
This issue is especially visible with brushes (or patches) directly above a lava brush. The top face of these brushes is brighter than it should be. This is not the only scenario where it happens though.
It looks fine with NetRadiant 1.5.0-20220628:
But this is how it looks with NetRadiant-master and latest NetRadiant-Custom:
In this example, the lava brush has a rectangular shape and intersects with the 2 brushes on the left. The brush with the grate texture is placed 4 units above the lava surface.
This test map was compiled with the "Final: -bounce 8 -dirty (new Xonotic's default)" settings, but the issue also seems to arise with different build settings.
Test map: test.map
Edited by Spike29