Yes, surface normals is the proper name. When we were making the control for version 1 of MA we came up with "shimmer" as being more descriptive to nontechnical people.
Eric and I discussed bump mapping. It won't be a version 1 feature. It might be a feature beyond 1, but no promises for when.
There does appear to be a problem with the mipmapping which shows up with some of the fish's dorsal fins. That is on my list to investigate.
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