Mirror bug effect appears in newer version of gzdoom 1.5.6

[doomexpert]

when i standing afront of a mirror the effect appears when i make more distance between me and the mirror.
in the previous version of gzdoom i did not across that problem.

here are some screenshots..

[NeuralStunner]

This is probably useless without uploading the map in question.

[Graf Zahl]

Precisely. I checked with Daedalus's 'Brig' map and was unable to reproduce it.

[Graf Zahl]

Never mind, I already recognized which level that is and the problem was indeed visible (some interference of drawing the skybox with portal occlusion info.)

fixed

[doomexpert]

the level is satanx.wad. a very good scripted wad. how is the problem possible? in previous versions of gzdoom i never had that problem. now i have the feeling that the old gzdoom is better , except for the mouse navigation in the menu, that was very great leap forward to me!

[Graf Zahl]

The problem happened because I added some maintenance data for portals - and that got overwritten when a skybox and a mirror were in view at the same time.

[doomexpert]

so it's not a wad issue? because in pk3 files like dawn of reality - the effect does not appear

[Graf Zahl]

No, not a WAD issue. Just a small bug that was easily fixed once I knew what was wrong.