Visual bug in PrBoom+?

[Pechudin]

    So, I am editing my first map and having a blast, when upon testing my map in PrBoom+ I happen upon the following visual glitch. I don't know what is causing it, as I first though there might be some midtexture fuckery going on, but it does not seem to be the case. The 'void' seems to follow the player and is only drawn on the CEIL5_3 sector (the metal overhangs).

 

    Testing in GZDooM it looks fine (Hardware rendered, Vulkan). I also attach the top-down picture in case there might be a problem there.

 

    Oh, and the format is BooM: DooM (DooM format).

[Jayextee]

This looks like a variant on the 'slime trail' bug: https://doomwiki.org/wiki/Slime_trail

Unsure of a definitive fix, perhaps a different nodebuilder will do the trick.

[Pechudin]

4 minutes ago, Jayextee said:

This looks like a variant on the 'slime trail' bug: https://doomwiki.org/wiki/Slime_trail

Unsure of a definitive fix, perhaps a different nodebuilder will do the trick.

Hmm... would putting vertices at gridpoints fix it then? I might try it just to see what happens.

 

EDIT: It did fix it! I just sligtly nudged two vertices onto the 8px grid, and the bug was fixed. I thought, since the bug had something to do with roundoff errors, that'd fix it.