Commit Graph

7 Commits

Author SHA1 Message Date
Nick Darnell
a7a6176be2 Gamma Correction - Changing the way all FColors are converted into FLinearColor by default. Previously all sRGB textures coming into the engine along with all other usage of FColor -> FLinearColor used a lookup table that assumed the final gamma correction would simply be pow(color, 1/DisplayGamma). However, that's not the case, we use the IEC 61966-2-1 standard on most platforms for both the scene renderer, as well as for gamma correction in Slate. In Slate you should now see an image matching Photoshop instead of being slightly darker in the lower ranges. However, because we don't want to invalidate all existing textures that users have authored, all existing UTextures have a UseLegacyGamma flag set to true, all new textures will be set to false. The flag is part of the DDC key calculation, but steps were taken so that when legacy is true, keys match existing keys to prevent universally invalidating all games DDCs just to make this change.
To summarize,

Old Pipeline: sRGB-Pow(2.2) -> Linear -> sRGB-IEC 61966
New Pipeline: sRGB-IEC 61966 -> Linear -> sRGB-IEC 61966

#codereview gil.gribb, nick.penwarden, martin.mittring

[CL 2571070 by Nick Darnell in Main branch]
2015-05-29 16:03:43 -04:00
Steve Robb
88dc05ef9e Native classes mirrored as USTRUCTs in Object.h changed to structs.
Typedefs mirrored as USTRUCTs in Object.h wrapped as structs.
Hack in UStructProperty::GetCPPTypeForwardDeclaration removed which was mapping some of these types for correct forward declarations.

#codereview robert.manuszewski,michael.noland

[CL 2445497 by Steve Robb in Main branch]
2015-02-13 17:06:42 -05:00
Ben Marsh
149375b14b Update copyright notices to 2015.
[CL 2379638 by Ben Marsh in Main branch]
2014-12-07 19:09:38 -05:00
Jaroslaw Palczynski
65ba5d456f TArray documentation and a coupld of methods deprecation.
Changes mostly in Array.h. The changes in other files are only renames for deprecated functions.

[CL 2312616 by Jaroslaw Palczynski in Main branch]
2014-09-29 04:23:44 -04:00
Max Preussner
3aece47882 Docs: Removed file comments and added missing code documentation
Please note that file comments had no purpose in nearly all cases and just added visual clutter. The two files that had meaningful file comments had their comments moved into the corresponding classes. There are still hundreds of file comments left in other files that will be removed over time.

Also cleaned up some random stuff along the way:
- relative paths to public headers within the same module are no longer necessary (automatically discovered by UBT now)
- header guards are deprecated, use #pragma once instead (all compilers support it now)
- space between multiple template brackets is no longer required (all compilers support >> now)
- NULL to nullptr, OVERRIDE to override
- spelling errors, whitespace, line breaks

[CL 2104067 by Max Preussner in Main branch]
2014-06-12 23:22:18 -04:00
Mikolaj Sieluzycki
45c031d576 #ttp 331438 UE4: PlatformMath refactor
#proj core
#branch UE4
#summary Rename Trunc, Round, Floor, Ceil to TruncToInt, RoundToInt, FloorToInt, CeilToInt. Added *ToFloat versions. Repeated for FGenericPlatformMath and all derived classes for all platforms wherever applicable. Corrected comment in Fractional and added Frac() which does HLSL-style fractional (x - floor(x)). Checked for compilation on all projects (with cooking levels wherever applicable). Didn't change Fractional to Frac, this will be done in second commit.
#codereview robert.manuszewski

[CL 2064306 by Mikolaj Sieluzycki in Main branch]
2014-05-06 06:26:25 -04:00
Tim Sweeney
324683ce78 Engine source (Main branch up to CL 2026164) 2014-03-14 14:13:41 -04:00