Am 30.11.2016 um 21:36 schrieb Mike Horvath:
> I've attached a short movie and the scene file. Compare to this for a
> general idea of what I'm trying to do:
> 
> https://commons.wikimedia.org/wiki/File:HSLSphere.svg
...
> 3. The isosurface is awfully flat at the bottom. This makes me
>    suspicious.

The whole shape makes me suspicious. Unfortunately I'm unfamiliar with
the colour space you're trying to render, so I have no idea whether
you're doing the right thing or not.

The term "CIELCH" is certainly wrong for this shape, as that would
simply be the cylindrical parameterization of the CIELAB or CIELUV
colour space you've already dealt with.

As a matter of fact I'm not aware of any LCH-based colour space that is
commonly represented in a fully spherical interpretation of those
parameters.

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