As I said we're now into very subtle differences. The objective of the modulated AO is to avoid producing AO in some places. For example, on either side of the nose, 100% AO produces a noticeable darkening that is overdone. The modulation based on N.y decreases the AO there, because the cheek bone area under the eye and beside the nose actually points up a bit.

To see such small differences, first of all you have to have your monitor calibrated very well. Second, you need to do a flip-test comparison.

If you are using the Internet Explorer (or other tabbed browser) click on both images to load them into a tab by themselves. Then alternately click one tab then the other. With the images in each tab, they should be perfectly lined up on your screen, so that flipping tabs will replace one image with the other. That makes it easy to see which pixels are different.

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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)