Question by ahorne · Apr 27, 2016 at 05:37 PM · camera rendering hdr visual problems green

Green Creep? Any idea what might be causing this visual glitch?

https://www.youtube.com/watch?v=O7i8C5phIbs&feature=youtu.be&t=1m24s

This only seems to be reproducible in a build, rather than in the editor, although one person claimed it happened in the editor once. Its fairly reproducible around this point and with this enemy in particular. Someone suggested it might be a problem with HDR buffers? Does that make sense? How would it be fixed?

The log file contains no useful information so I surmise its not an "error", just something going wrong in a way that the game thinks is acceptable operation but appears wrong. There is a seperate weapon camera and it appears to only be affecting the main one (both have HDR turned on, one is forward, the other deferred). However, the creep appears to be occuring in the world, rather than just on screen as you can sort of run away from it. One time I looked away completely and it stopped happening, but just that once.

This one has been a doozy to track down. If anyone has any insights or ideas or (awesomely) knows exactly what the problem is and how to fix it, I'd greatly appreciate the assist.

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Jessespike · Apr 27, 2016 at 08:16 PM 0

Have you tried without HDR as suggested? It seems to happen after the enemy does an animation, not sure if that has anything to do with it. Does he have trail effects on his arms/weapons? I'd do a test with those disabled. Not sure what could cause this problem, never seen it before. I guess start making builds with features disabled and try to narrow down the problem.

ahorne Jessespike · Apr 27, 2016 at 11:22 PM -1

Jessespike - Good suggestions. If we didn't need HDR for the game, then you are correct that turning off HDR would probably solve it. We need it for the game though... There's too many things and combinations to go through by trial and error. I've tried that a little and a lot of them solve the problem. Unfortunately, like HDR we need those things not disabled. I am looking for a way to fix it and keep all the awesome visual features we have in our current setup.

Jessespike ahorne · Apr 28, 2016 at 05:04 PM 1

Oh I didn't mean permanently remove features from the game. I meant, make a test build with some features disabled to narrow down the problem. If the problem is gone then you can guess that one of the features you disabled is related to problem, and then you can fix it. Seems like you already tried that though. Hmm, well this is tricky, can't fix something if you don't know where the problem lies. Perhaps it's hardware related, have you tested on other machines?

Green Creep? Any idea what might be causing this visual glitch?

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