space-wizards
Fixes luminance underflow in FromHCY
was working on OD was confused by the blue gradient then realized that the blue value was negative and this fixes that
What input values reproduce this behavior?
Should be any value between pure red and pure green ( like the picture ablve)
After a bunch of digging I've come to the conclusion the "HCY" color space is ill-defined and mathematically incorrect, so I'd rather just remove it from RT entirely. I'll close this PR and commit a deprecation for them.
For OpenDream's use case, I recommend you implement your own copy of the functions instead. For what it's worth, it seems like this fix isn't correct, and instead there's some scaling factor missing. Check this I guess: https://chilliant.blogspot.com/2012/08/rgbhcy-in-hlsl.html