Convert RT light color to sRGB

[Jrius]

As described on discord the other day. Realtime light color must be converted to sRGB, otherwise they will be much darker than in Blender and suffer from hue shift/oversaturation.

This is still not perfect. Maybe because Blender does all light calculation in linear space, whereas Plasma likely doesn't - or maybe there's still something else that I have missed. But at least it's much closer now.

Animated light color may still be slightly incorrect if the interpolation is done in the wrong color space. Not much that can be done without adding more keyframes.

Blender:

Plasma with fix (notice the middle row is still not as bright as it should be):

Test file:
LightTest.zip

Ages exported with previous versions of Korman will likely see their realtime lighting be brighter, and manual adjustment will be necessary.

[Hoikas]

This looks good to me. For my reference, could you make an image similar to the one labelled "Plasma with the fix" that shows the current in-game behavior so we can have a good before/after comparison?

[Jrius]

Yep, here it is.
Before.

After.

[Hoikas]

Oh, yeah, that's a huge improvement.