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]
* New Blueprint function for creating sky lighting from a blend of two cubemaps - SetCubemapBlend
* Diffuse sky lighting is blended on the CPU, specular is blended per-pixel with an extra cubemap lookup until the blend fraction becomes 0 or 1
* Skylight capture still blocks on the GPU for readback but not the rendering thread. This happens when a new source or destination cubemap is requested with SetCubemapBlend.
[CL 2601116 by Daniel Wright in Main branch]
Also add many explicit calls to CopyToResolveTarget to indicate the transition of a render target to be able to be used as an SRV. Soon to be replaced by a more specific RHI function.
Added r.CheckSRVTransitions for D3D11 on windows to check if any of these transition are missing.
Fixes a bug with RHIThreadFence when using PLATFORM_SUPPORTS_PARALLEL_RHI_EXECUTE
PLATFORM_SUPPORTS_PARALLEL_RHI_EXECUTE on PS4 now supports CMASK and HTILE enabled buffers.
#codereview lee.clark,gil.gribb,rolando.caloca,daniel.wright
[CL 2420986 by Marcus Wassmer in Main branch]
* Still disabled as Metal requires a horrible workaround/hack
* Remove GSupportsGSRenderTargetLayerSwitchingToMips workaround
[CL 2295640 by Rolando Caloca in Main branch]
* Distance field building is now asynchronous and stored in the DDC separately from static mesh data.
* Added OcclusionMaxDistance and Contrast properties to Movable sky light
* Using the GBuffer normal instead of the generated distance field normal, fixes artifacts on two-sided materials and between modular pieces. Also saves about .7ms / 4.5ms
* Points in the distance field are only considered 'inside' the mesh if > 50% of all rays traced hit a backface. Most meshes can have a valid distance field generated with this heuristic. Meshes without a distance field representation can receive occlusion.
* Fortnite two-sided foliage with world position offset animation works fine now
* Using the resulting bent normal for diffuse lighting, improves consistency in occluded corners
* Resulting bent normal is also used to occlude skylight specular using an approximate cone-cone intersection, prevents leaking where SSR is not available
* Fixed stationary skylights not getting lightmap mixing
* Reflection captures now work with the movable skylight, which adds its diffuse contribution to IndirectIrradiance so their lightmap mixing works
* Added new show flag to visualize mesh distance fields, which ray traces through the distance fields and gives a sense of their shape
[CL 2276435 by Daniel Wright in Main branch]
- Removed default shader platform parameter from GetGlobalShaderMap()
- Added an inline overload of GetGlobalShaderMap() that takes a feature level instead, and translates to the correct shader platform
- Cached feature level on FSceneView for faster access
- Cached shader map on FViewInfo for faster access
- Cached featurelevel/shadermap on rendering composition graph execution context, for faster access
Fixed a couple of crashes when switching feature level dynamically
- Needed to allow certain shader permutations to be generated if feature level was ES2, but still on a PC platform. (i.e. hitproxy shaders, and basepass shaders used by editor primitives system)
#codereview Nick.Penwarden
[CL 2275937 by Graeme Thornton in Main branch]
