Nick Darnell d287c6143f More Gamma Correction - Didn't catch this on the previous pass, apparently there was an implicit constructor allowing FLinearColor to FColor that was doing pow(2.2) gamma conversion inversion. Rather than leave the implicit constructor, I'm making it private and making people use ToFColor(true). Which is slightly more expensive, but performs the proper sRGB conversion. While fixing this, I found several terrible uses of the implicit constructor, when Hashing FLinearColors we were converting them to FColors first, when clearing FCanvas we were manually gamma correcting but leaving it as an FLinearColor, then implicitly converting to FColor, double gamma corrrecting. Neither of which should even be required as the RHI Clear command expects an FLinearColor. Additionally fixing a myriad of Slate widgets that were all doing FColor conversions needlessly only to convert back to FLinearColor when queuing slate draw commands. ...

#codereview nick.penwarden, martin.mittring, andrew.brown, gareth.martin

[CL 2593605 by Nick Darnell in Main branch]

2015-06-19 11:17:11 -04:00

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