#lockdown Nick.Penwarden
#rb none
==========================
MAJOR FEATURES + CHANGES
==========================
Change 3209340 on 2016/11/23 by Ben.Marsh
Convert UE4 codebase to an "include what you use" model - where every header just includes the dependencies it needs, rather than every source file including large monolithic headers like Engine.h and UnrealEd.h.
Measured full rebuild times around 2x faster using XGE on Windows, and improvements of 25% or more for incremental builds and full rebuilds on most other platforms.
* Every header now includes everything it needs to compile.
* There's a CoreMinimal.h header that gets you a set of ubiquitous types from Core (eg. FString, FName, TArray, FVector, etc...). Most headers now include this first.
* There's a CoreTypes.h header that sets up primitive UE4 types and build macros (int32, PLATFORM_WIN64, etc...). All headers in Core include this first, as does CoreMinimal.h.
* Every .cpp file includes its matching .h file first.
* This helps validate that each header is including everything it needs to compile.
* No engine code includes a monolithic header such as Engine.h or UnrealEd.h any more.
* You will get a warning if you try to include one of these from the engine. They still exist for compatibility with game projects and do not produce warnings when included there.
* There have only been minor changes to our internal games down to accommodate these changes. The intent is for this to be as seamless as possible.
* No engine code explicitly includes a precompiled header any more.
* We still use PCHs, but they're force-included on the compiler command line by UnrealBuildTool instead. This lets us tune what they contain without breaking any existing include dependencies.
* PCHs are generated by a tool to get a statistical amount of coverage for the source files using it, and I've seeded the new shared PCHs to contain any header included by > 15% of source files.
Tool used to generate this transform is at Engine\Source\Programs\IncludeTool.
[CL 3209342 by Ben Marsh in Main branch]
#lockdown Nick.Penwarden
#rb none
==========================
MAJOR FEATURES + CHANGES
==========================
Change 3072947 on 2016/08/01 by Uriel.Doyon
Texture GUIDs are now included in cooked builds, as they are required by the texture streamer to link build data to in game texture.
#review-3072934 @marcus.wassmer
#jira UE-34045
Change 3073301 on 2016/08/02 by Ben.Woodhouse
Fix for large spotlight culling precision issues, reported on UDN by Aaron Jacobs at Double Fine. For a full description, see the UDN post
https://udn.unrealengine.com/questions/305440/shadowed-light-flicker-caused-by-floating-point-pr.html
#jira UE-34052
Change 3073689 on 2016/08/02 by Ben.Woodhouse
Improved skin postprocess - support for full resolution, with diffuse/spec lighting combined into single RGBA (sharing chroma)
Full res lighting gives less temporal AA flickering, sharper diffuse and specular lighting in the surface (since this is now at full resolution), faster postprocessing if using a 64-bit rendertarget (on NV 980Ti).
Checkerboard rendering is controlled via the r.sss.checkerboard cvar. - 0 is off/full res, 1 is checkerboard, 2 is automatic based on scenecolor (non-checkerboard requires 64bit or more rendertarget w/separate alpha)
Tested/profiled on PC, PS4
Change 3074666 on 2016/08/02 by Daniel.Wright
Fixed stationary skylight brightness
Change 3074667 on 2016/08/02 by Daniel.Wright
Fixed r.ReflectionEnvironmentLightmapMixing
Change 3074687 on 2016/08/02 by Daniel.Wright
Disallowed DrawMaterialToRenderTarget and Begin/EndDrawCanvasToRenderTarget in construction scripts, since they don't work in game. Blutilities can be used to do blueprint rendering in the editor.
Change 3075241 on 2016/08/03 by Rolando.Caloca
DR - Fix linux compile issue & static analysis warning
Change 3075746 on 2016/08/03 by Daniel.Wright
Removed bOverride_AntiAliasingMethod and outdated ini references to PP AntiAliasingMethod
Change 3075783 on 2016/08/03 by Ryan.Brucks
#code.review Marcus.Wassmer
Added two material nodes that return Atmospheric Light Vector and Light Direction using:
View.AtmosphericFogSunColor
View.AtmosphericFogSunDirection
Nodes are called:
AtmosphericLightVector
AtmosphericLightColor
Also changed SceneRendering.cpp so that values will be grabbed from directional lights without needing an Atmospheric Fog actor in the scene.
Change 3075969 on 2016/08/03 by Uriel.Doyon
Material GUIDs are not updated anymore when parents or textures change.
Lighting now uses a hash built from the list of parents, textures and shader functions.
#review-3072980 @marcus.wassmer @daniel.wright
Change 3076116 on 2016/08/03 by Ryan.Brucks
#code.review marcus.wassmer
Fixed typo in the Caption of new Nodes "Atmospheric Light Vector" and "Atmospheric Light Color"
Change 3076456 on 2016/08/03 by Rolando.Caloca
DR - Fix geometry shader gl_Layer for SPIR-V
Change 3076730 on 2016/08/03 by Uriel.Doyon
Added user warning logic for the texture streaming build. Ran in MapCheck, BeginPlay and PreSave.
#review-3072984 @marcus.wassmer
Change 3077616 on 2016/08/04 by Daniel.Wright
Planar reflection show flags can now be edited
Change 3077621 on 2016/08/04 by Daniel.Wright
Changed default Planar Reflection DistanceFromPlaneFadeoutEnd from 600 to 100, which reduces artifacts and is a more intuitive initial setting
Change 3077792 on 2016/08/04 by Daniel.Wright
Fixed an unnecessary sky capture caused by the sky light component owned by the default ASkyLight
Change 3077799 on 2016/08/04 by Daniel.Wright
Skip RF_ArchetypeObject for reflection captures
Change 3077876 on 2016/08/04 by Marc.Olano
Noise material perf improvements
Change random number generator for Gradient-ALU (1.7x perf boost), improve speed of Voronoi noise quality level 3.
Removes integer BBS random number generators. Fewer instructions, but too slow to use (see 1.7x perf boost above)
Change 3077884 on 2016/08/04 by Daniel.Wright
Lighting channels can now be edited on components with static mobility, since dynamic lights can still affect them
Change 3078994 on 2016/08/05 by Simon.Tovey
Fix for UE-34241
Scene proxy ptr was being cached during a downcast.
Inside a call to CreateDynamicData, CheckMaterialUsage_Concurrent() was causing the scene proxy to be recreated an so the cached ptr was stale.
I've fixed the immediate issue but recreating the scene proxy here doesn't seem great. Maybe CheckMaterailUsage() should be rethought a bit.
Change 3079162 on 2016/08/05 by Ben.Woodhouse
Fix for jittering in Paper2D. Was caused by override being ignored due to a change in intiialization order for AA settings.
#jira UE-34091
Change 3079613 on 2016/08/05 by Daniel.Wright
New blueprint function ClearRenderTarget2D, which is the only way to set a render target alpha directly
New blueprint function CreateRenderTarget2D
Change 3079708 on 2016/08/05 by Uriel.Doyon
Fixed crash when building texture streaming on some levels.
Change 3079795 on 2016/08/05 by Uriel.Doyon
Fixed issue with instanced static meshes when building texture streaming.
Fixed typo with func "GetNumTextureStreamingPrimitives"
Change 3079806 on 2016/08/05 by Uriel.Doyon
Enabled PerTexture MipBias. The per texture mip bias now resets to 0 when the texture gets required at low resolution.
New scalability setting named "r.Streaming.LimitPoolSizeToVRAM" enabling the PoolSize to be limited the available VRAM
(according to GPoolSizeVRAMPercentage)
#review-3074662 @marcus.wassmer
Change 3082698 on 2016/08/09 by Daniel.Wright
Copy - CreateRenderTarget2D uses a world context object as owner, allows use in a construction script
Change 3082699 on 2016/08/09 by Daniel.Wright
Changed display name for 'Two Sided' shading model to 'Two Sided Foliage' to make it clear what it's intended to be used for
Change 3083909 on 2016/08/10 by Olaf.Piesche
#jira UE-34106
#jira UE-32784
#jira UE-31198
Reset vertex factories on mesh emitters if mesh has been reimported (if mesh package is dirty)
Change 3084645 on 2016/08/10 by Olaf.Piesche
#jira UE-30398
Fix offset added to particle collision locations.
Change 3084709 on 2016/08/10 by Daniel.Wright
Copy - Scene capture alpha is now inverted to match DrawMaterialToRenderTarget, and to allow compositing with existing render target contents
Added CompositeMode to SceneCapture2D, which can be used to addively accumulate or composite instead of the default overwrite behavior
Added bCaptureOnMovement to SceneCapture, which can be disabled so the only source of scene capturing is a manual capture by calling CaptureScene()
Change 3084783 on 2016/08/10 by Rolando.Caloca
DR - Use the first targeted rhi shader platform as the initial RHI to load on Windows
#jira UE-34510
Change 3084958 on 2016/08/10 by Daniel.Wright
Copy - Reverted cl 2938543 "Lightmass now respects owner bHidden, and bCastHiddenShadow" because it did not have backwards compatibility so breaks content using hidden light cards
Change 3086023 on 2016/08/11 by Marcus.Wassmer
Merging //UE4/Dev-Main@3085468 to Dev-Rendering (//UE4/Dev-Rendering)
#test none
Change 3086778 on 2016/08/11 by Ben.Woodhouse
Workaround for fortnite character rendering issue. Enable checkerboard rendering by default until we can fix properly
#jira UE-34561
Change 3087404 on 2016/08/12 by Rolando.Caloca
DR - Upgrade glslang to 1.0.21.1
- Added some more debug output
Change 3087524 on 2016/08/12 by Rolando.Caloca
DR - vk - Fixed StencilRef, fixed size of RHIReadSurfaceFloatData (but still returns dummy data)
Change 3087663 on 2016/08/12 by Rolando.Caloca
DR - vk - Fix for SRGB; support for mip texture views
Change 3087735 on 2016/08/12 by Daniel.Wright
TextureRenderTarget2D's can now be up to 8192^2. Anything over 2048 pops up an 'are you sure' dialog.
Change 3087750 on 2016/08/12 by Rolando.Caloca
DR - vk - Minor renaming in prep for merge
Change 3087813 on 2016/08/12 by Rolando.Caloca
DR - vk - More minor cleanup
Change 3087819 on 2016/08/12 by Chris.Bunner
Check material function input types directly, no need to traverse connected graph.
#jira UE-32134
Change 3087901 on 2016/08/12 by Rolando.Caloca
DR - vk - Fix RT view to use 1 mip
Fix depth buffer component swizzle
Change 3088193 on 2016/08/12 by Daniel.Wright
DFAO and RTDF shadows are enabled in High and Epic scalability settings by default
Change 3088988 on 2016/08/15 by Rolando.Caloca
DR - Add Accessors
Change 3089104 on 2016/08/15 by Olaf.Piesche
#jira UE-34241
Sceneproxy can be nullptr in FDynamicMeshEmitterData::Init if the proxy is being recreated
Change 3089208 on 2016/08/15 by Daniel.Wright
Downsampled separate translucency uses a separate view uniform buffer with correct buffer sizes
* Fixes WorldPosition in downsampled translucency
* View uniform buffer parameters are now cached on the view, to allow recreating the uniform buffer without having to rebuild the entire struct. Currently used by global distance field, downsampled separate translucency.
* Fixed the downsampled translucency depth buffer being full res used together with a smaller color target, now they are both the downsampled res
Change 3089209 on 2016/08/15 by Daniel.Wright
Fixed atmospheric fog on translucency
Change 3089457 on 2016/08/15 by Daniel.Wright
Fixed lighting build failure from UMaterialInstanceDynamic assigned to a mesh that's being exported to Lightmass. The Swarm cache entry is created using the parent's guid, causing multiple MID's with the same parent to acquire a file handle multiple times which fails after the first.
Change 3089549 on 2016/08/15 by Daniel.Wright
UMaterialInterface initializes LightingGuid to something valid - causes UMaterialInstanceDynamic to have a valid LightingGuid so they can be used in lighting builds
Change 3089703 on 2016/08/15 by Daniel.Wright
Custom expression fixup for View.RenderTargetSize
Change 3090546 on 2016/08/16 by Daniel.Wright
Hopeful fix for recycled snapshot view crash
Change 3091202 on 2016/08/16 by Daniel.Wright
Manually clear FViewInfo::CachedViewUniformShaderParameters on creating a snapshot, since memcpy is used to create the snapshot view
[CL 3091931 by Gil Gribb in Main branch]
I did the first part, lock some showflags to be 0 or 1 in SHIPPING
If this causes problems for some applications (e.g. using showflag as scalability which they shouldn't) the user needs to update the code.
or we remove the lock from that showflag.
For editor or non shipping features it's fine to use the SetSHOWFLAGNAME() calls, they become NOPS in SHIPPING.
This is a performance optimization (when used in inner loop) and prepares for removing more
[CL 2673126 by Martin Mittring in Main branch]
'Lighting Components' -> 'Ambient Occlusion' affects both DFAO and SSAO now
Added 'Screen Space Ambient Occlusion' show flag under 'Lighting Features'
[CL 2557658 by Daniel Wright in Main branch]
The display name, filter string, and tooltips for the property editor (and associated detail customizations) are now stored as FText rather than FString. This allows us to remove SLATE_TEXT_ARGUMENT from the detail customization widgets.
[CL 2372595 by Jamie Dale in Main branch]
