#jira UE-159832
#rb Aaron.mcleran Phil.Popp Dan.Thompson Josh.Adams
#preflight 62d260033c3df323907eaa93
[CL 21153330 by jimmy smith in ue5-main branch]
- RHISupportsMultiviewport made to work on relevant shader platforms.
- RHISetStereoViewport implemented
- Unused outputs removal fixed to always consider viewport index used.
- Renamed confusing terminology (multiview -> multiviewport).
- Added a CVar (vr.MultiViewport) to force disable
- Added a canvas output to know the method in non-Shipping
#jira UE-151349
#review @Robert.Srinivasiah, @Jules.Blok, @JeanNoe.Morissette
#rb Robert.Srinivasiah, Jules.Blok, Chris.Waters
#preflight 62d193c43b057e727491c9d2
[CL 21153050 by Arciel Rekman in ue5-main branch]
* RT shaders are still excluded from SM5 if project is configured to not cook SM5 shaders for D3D12
#rb chris.kulla
#jira UE-158270
#preflight 62d1d478e468fcfd0b97d55a
[CL 21117293 by Yuriy ODonnell in ue5-main branch]
- Refactoring FShaderParameterParser to use more string views since we can rely on OriginalParsedShader not changing.
- Split FShaderParameterParser::ParseAndMoveShaderParametersToRootConstantBuffer into smaller functions
- Moving FShaderParametersMetadata::IterateShaderParameterMembers into the only module it's used in, ShaderParameterParser.cpp
- Adding CFLAG_BindlessResources which will be set when ENABLE_BINDLESS_RESOURCES is set
- Adding CFLAG_BindlessSamplers which will be set when ENABLE_BINDLESS_SAMPLERS is set
- Adding resource/sampler detection and conversion to bindless in FShaderParameterParser
#jira UE-139616
#rb guillaume.abadie, jeannoe.morissette, yuriy.odonnell, laura.hermanns
#preflight 62d180cce468fcfd0b7001a0
[CL 21111994 by christopher waters in ue5-main branch]
* This is necessary because some (pre UE 5.1) projects use this instead of D3D12TargetedShaderFormats, etc.
#rb jason.nadro
#jira UE-158270
#preflight 62c47a332f31b87c6c91fb52
#ROBOMERGE-AUTHOR: yuriy.odonnell
#ROBOMERGE-SOURCE: CL 20947047 via CL 20947122 via CL 20947433
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v971-20777995)
[CL 20950739 by yuriy odonnell in ue5-main branch]
* Add ITargetPlatform::GetRayTracingShaderFormats(), with default implementation that falls back to GetAllTargetedShaderFormats() if HWRT is enabled for a platform
* Override GetRayTracingShaderFormats() for TGenericWindowsTargetPlatform to return only enabled D3D12 and VK shader formats (excluding D3D11)
* Use GetRayTracingShaderFormat() and UsesRayTracing() to configure GRayTracingPlaformMask (the mask contains one bit per shader platform)
Previously all bits of GRayTracingPlaformMask were set if project uses ray tracing, then shader platform bits were disabled for all possible shader formats for platforms that don't support ray tracing.
If SM5 was disabled for D3D12, ray tracing shaders would still get compiled for it because the corresponding bit was still set in GRayTracingPlaformMask.
With this change, SM5 bit will no longer be set in GRayTracingPlaformMask in the editor if it is disabled for D3D12 RHI for the project, so ray tracing shaders won't be compiled.
When running a packaged build, GRayTracingPlaformMask is now set to 0 or 1 based on global project setting (r.RayTracing) and whether the current machine+RHI supports ray tracing.
#rb christopher.waters, jason.nadro
#preflight 62bd0dea3f0d6beee259b636
#ROBOMERGE-AUTHOR: yuriy.odonnell
#ROBOMERGE-SOURCE: CL 20897852 via CL 20898485 via CL 20899239
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v971-20777995)
[CL 20901755 by yuriy odonnell in ue5-main branch]
- Decals materials are evaluated using callable shaders in PathTracingKernel.
- Decals are culled using a 2D grid similar to the existing light grid.
- In order to correctly handle decal blending order, decals are sorted using the same logic as the rasterizer on CPU. The compute shader that builds the decal grid maintains the correct order.
- Decal materials are wrapped in FRayTracingDecalMaterialShader. The instance parameters of each decal are bound using uniform buffers.
#preflight 628f3fed2f2409bc1e7a6414
#rb Yuriy.ODonnell, chris.kulla, Jeremy.Moore
[CL 20377336 by tiago costa in ue5-main branch]
the bad value passed to BlockSize was not actually used so behavior was not actually broken
#preflight 628bb9cc016e5daa1cbc21e5
#rb jon.olick
[CL 20335399 by charles bloom in ue5-main branch]
On Windows, "TargetedRHIs" is now split into "D3D11TargetedShaderFormats", "D3D12TargetedShaderFormats" and "VulkanTargetedShaderFormats". "TargetedRHIs" is still parsed for backwards compatibility.
Using this, projects can now be more easily configured for D3D12-only or even Vulkan-only.
Updated FShaderFormatsPropertyDetails to use FName instead of FString for shader platforms. Also added a filtering method for mixed RHI platforms like Windows.
#jira none
#rb mihnea.balta, josh.adams
#preflight 6287cbf46c7692ac8cc8805f
[CL 20300786 by christopher waters in ue5-main branch]
- Adding support for bindless resources/samplers. The loose resources have to be wrapped in a macro that generates an index and proxy resource when bindless is enabled. Reflection has to parse these differently from other resources since they're parsed as uint parameters. The runtime also has to bind these differently since they end up needing to find their real resource in the binding data and then update a constant buffer.
- To assist in conversions, the shader compiler will detect if a shader is compiled with both bindless and non-bindless resources/samplers and will emit errors if that is the case.
- Adding support for bindless Uniform Buffer resources/samplers. Because Uniform Buffers aren't per-shader, they'll always update their constants with the bindless indices of their resources.
- Adding more flags to FShaderCodePackedResourceCounts required changing all the array initializations to individual parameters since not all the new flags are used everywhere.
- No shaders have been configured to support bindless resources/samplers. Yet.
#jira UE-139616
#rb zach.bethel, arciel.rekman
#preflight 6282b8ec44349a6581a21a39
[CL 20250348 by christopher waters in ue5-main branch]
