The other day I was comparing notes with Scott Brown, from The Beck Group and a Top 10 Speaker at BILT-NA 2017, about a lighting problem we both experienced in recent rendering efforts. This is one of those things where I knew the answer, but had forgotten. Once I found the answer, I was like "I knew that!".

Problem:
A continuous light source, as shown in the image below, does not emit light properly when rendered, as evident in the second image. Often, this is not noticed unless you have a light near a wall or ceiling were the hot spot is clearly not correct.



Solution:
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