HBAO+ is moved to ScreenSpaceAO on my fork (commit ) so it will a) work in forward b) take light and shadows into account when AO is applied, just like UE4 SSAO. There isn’t toggle for so if you want the old behavior (HBAO+ rendered on top of everything), you can just revert the commit that makes change if you’ve cloned the git repo, from commandline and using 4.21-Gameworks the command to revert specific commit would be