CCT Conversions

[sobotka]

If you are keen to flesh this out further, looking into more correct and flexible transforms from CCT to various RGB encodings.

See https://www.colour-science.org/api/0.3.1/html/colour.temperature.cct.html

https://github.com/jlampel/bl_extra_lights/blob/0e3375e73e5431d09820e4dff0b94f34d80a97a5/conversions.py#L10

[jlampel]

Oh, nice! Would you recommend using the Ohno 2013 method?

[sobotka]

It depends on the ranges you try; they are all sort of approximations, and as such, they will snap apart in some contexts.

The upside is that in addition to potentially improving the aesthetic output, it is coupled to XYZ so it is possible to implement the XYZ role in Blender via Python and honour the colour primaries of the rendering space.