PBR materials, lighting/reflections cut off

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Expand view Topic review: PBR materials, lighting/reflections cut off

Re: PBR materials, lighting/reflections cut off

by dpJudas » Wed Oct 17, 2018 1:10 am

This should be fixed now.

Re: PBR materials, lighting/reflections cut off

by dpJudas » Thu Apr 26, 2018 6:11 pm

This has to do with the fact that reflection can be seen a lot further away than the usual light radius. I'm not sure exactly what the best way to deal with it as enlarging light radius used for culling will be expensive performance wise.

Re: PBR materials, lighting/reflections cut off

by Xane123 » Thu Apr 26, 2018 5:40 pm

This reminds me of a bug I've noticed in my game; It seems the BSP tree or whatever it is is cutting off the reflections, but it only does it after a certain distance, as shown here by these two lights; They have a similar amount of space in front of them before they get cut off.
cutoff-lights.jpg

PBR materials, lighting/reflections cut off

by mty » Thu Apr 19, 2018 3:26 am

I noticed this in my map. Lights and reflections on pbr materials are sometimes cut off. So I built a small map to reproduce the issue. Well it's funnier than I had thought. But check out this video, which demonstrates the problem better than I coould describe.



And the demo map:
http://www.matyy.de/doom/pbr-light-bug.pk3

This happens with the current git and also with 3.3.2

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