I just realized I gave incorrect instructions for increasing the dynamic range of an IBL probe.

To increase the range, decrease the brightness of the Lens Alternate_Diffuse. In my GenIBL page I said decrease the Color_Math to 127. That is wrong. Decrease the PoserSurface:Alternate_DIffuse to 127.

This is the result. The sunny sky area now has a nice gradient. The ground and buildings seem almost black - but that's just because your monitor sux. :) They are not black at all. Do not worry. This is what linear images look like.

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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)