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Question by chernobyyl · Jan 04, 2021 at 12:08 PM · post processingbloom

Edgy Bloom Effect with URP

Post processing bloom looks very strange. it looks normal if I remove the Lightweight RP or if I turn the bloom down. Is there a fix for this? Thanks alt text

btw, this is a screenshot not a phone image

bild-2021-01-04-130802.png (110.3 kB)
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Answer by andrew-lukasik · Jan 04, 2021 at 01:04 PM

This issue is usually referred to as color banding. It exists because computers use integers to represent (compress) floating-point numbers. Here it's 32bit color space so 4 integers of 0-255 (byte) value range each per pixel color.


When it happens in textures - you need to adjust their color range, compression settings, maybe reduce color palette etc.

When it happens because of shaders or post processesing - you may want to enable HDR or try working around it by tweaking their code and settings until it's no longer as apparent.

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avatar image chernobyyl · Jan 04, 2021 at 01:23 PM 1
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Thank you very much. I had to enable HDR in the renderer settings. that worked!

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