Shpoike

vkquake's csqc implementation lacks the sound:8 builtin (defined as PF_Fixme in pr_cmds.c), while pointsound exists it lacks channel replacements which makes stuff awkward. additionally localsound:177 is missing (not to be...

negative uints

2

https://github.com/sezero/quakespasm/blob/master/Quake/r_world.c#L324 there are bad bsps out there with only 1 or 2 edges per face (ericw-tools seems to generate them). these degenerate faces can thus return -3 here... R_BatchSurface then...

bad loop

1

https://github.com/sezero/quakespasm/blob/master/Quake/r_world.c#L131 by pre-skipping leaf 0 (as required by pvs), that array reads 1 leaf and 1 pvsbit beyond the end of their respective arrays, which could result in bad reads...