Color space of MERL BRDF database? I know that by now it might be considered as a kind of sad recurrent joke, but by chance, does anyone here has the least information about the colorspace of RGB values in the MERL BRDF measurement database ?
Was interested in this myself and did some digging, I was wondering if they where spectral, but it appears not (although some interesting work on spectral BRDF is here http://web.cs.wpi.edu/~emmanuel/courses/cs563/write_ups/cliffl/cliffl_spectral_brdf.html )

This chat seems to indicate they are camera native linear, probably with sRGB primaries.

https://groups.google.com/forum/#!msg/pbrt/p9zMvZlaodA/4RD7-We8h4gJ