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Developer struggling to make area lights
Was trying to use an IES light profile and change source radius and length, but it didn't seem to scale in a way that made sense
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Not sure if these features are meant to work together
Tried some IES light profiles that are supposed to work with long lights from this site, but still don't seem to work well with source radius and length:
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-16836 in the post.