I didn't say that. I said there's no point in converting those images to angular map format, since they are not equirectangular to begin with. They are just ordinary photos.

If you have any kind smear of blue above, and green below, photo or not, it can be used to create the impression that there is blue light from above and green light from below.

What I'm saying is that the fancy, detailed conversion you're trying to do is pointless. I am not saying that using colors from photos is pointless.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)