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Re: UE5 PBR Lightning
The sun 'is' 120k lux before clouds/atmosphere get involved iirc - don't quote me but i think the 75k that the sun position plugin provided by Unreal uses is probably in the right ballpark for actual light hitting earth (i will immediately concede to anyone who has done actual research into this - im doing the sums in my… -
Re: UE5 PBR Lightning
Yeah the skylight/HDRI strength needs to be relative to the skylight strength, I've heard a ~4:1 ratio is normally suggested, but probably depends a lot on the particular HDRI being used. Using real world values can sometimes cause artifacts with other features like Lumen having black spots or a grid artifact, I think this…
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