clipka <ano### [at] anonymousorg> wrote:
> (Quick sanity check: Which result looks more realistic to you - the
> formula from my Highlight Voodoo post, or the albedo implementation?)

It's hard to say with the limited dynamic range of the medium.

I reran the scene using the HDR formats and image-mapped the outputs at a lower
brightness.  Given the high roughness value, I'd say the albedo implementation
looks more realistic.  But it's always hard to gauge the accuracy of anything
that appears on a computer monitor.

I used a high roughness value above because the difference isn't obvious with
small values.  I just tried it with a roughness of 0.001.  To do a proper
comparison, I had to dim the scene so much that the brighter of the highlights
(the Highlight Voodoo) seemed out-of-place.

Attached are the roughness 0.001 runs.  From left to right, the images are
Highlight Voodoo, the albedo implementation, and the formula you just gave.

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Download 'tight_albedo-hdr.png' (32 KB)

Preview of image 'tight_albedo-hdr.png'