Thomas de Groot schrieb:
> Excellent work, sir! You are entitled to a bonus :-)

I'm still not happy with the whole smash.

Notice the brightness "peak" in the violet range? Doesn't appear natural 
to me.

Right until beta.34, POV-Ray has been using a rather obscure and sketchy 
formula to compute spectral colors, based on data from the 'net that I 
didn't manage to track down. This makes it difficult to determine (a) 
what color space the underlying data was designed for, (b) whether the 
original data was gamma-precorrected or not, and (c) what wavelengths 
the code is normalized to.

I tried to replace the formula with an interpolation table generated 
from physical data normalized to the sRGB color space, but it looked 
even worse.

(I did replace the formula with a table though - using values generated 
directly from the formula for now - as this was needed to address the 
"color drift" that occurred with low dispersion sample count.)

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