> Anyone could do the old reflection blur patch,
> but it isn't needed

Agree.

> A patch could implement the average texture method

I've tried both the 'averaging' method and the 'microfacet' method, and I
clearly prefer the microfacets. So again, a patch is not needed. But it's
possible that even the microfacets could be speed up, by evaluating the rest
of the texture only once. To avoid confusion let me note, what I mean by
microfacets: One normal, scaled very small, but evaluated many times due to
HQ anti-alias.

Regards,
Hugo

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