AMD still has issues with SM6.6 but we can't wait on their fixes much longer.
#jira none
#rb mihnea.balta, lukas.hermanns
#preflight 61eb15ae731e3b40889d249c
[CL 18697016 by christopher waters in ue5-main branch]
- Putting UniformBuffer name array key in a global header
- UniformBuffer name array shouldn't even been compiled in configurations that don't populate it
- Load shader UniformBuffer names in D3D12
- Adding error logging to D3D12 resource binding, uses shader UniformBuffer names. Implementation copied from D3D11.
#jira none
#rb kenzo.terelst
#preflight 61b23198e0430ca438c973de
#ROBOMERGE-AUTHOR: christopher.waters
#ROBOMERGE-SOURCE: CL 18420494 in //UE5/Release-5.0/... via CL 18422574
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v897-18405271)
[CL 18422839 by christopher waters in ue5-release-engine-test branch]
This represents UE4/Main @18073326, Release-5.0 @18081140 and Dev-PerfTest @18045971
[CL 18081471 by aurel cordonnier in ue5-release-engine-test branch]
This represents UE4/Main @17911760, Release-5.0 @17915875 and Dev-PerfTest @17914035
[CL 17918595 by aurel cordonnier in ue5-release-engine-test branch]
- SM6.6 not enabled just yet.
- Adding our own defines of __SHADER_TARGET_MAJOR and __SHADER_TARGET_MINOR to mimic the DXC defines. Since we preprocess, we can't rely on DXC to define them for us.
- Adding support for 64bit atomic operations
- Changing part of Nanite PC atomic permutation selection to be based on DataDrivenPlatformInfo
- Fixing DXC shader debugging. The PDB section was still being stripped from the final DXIL.
#jira none
#rb rune.stubbe
#preflight 61548928f5e4fd0001d7d0b3
#ROBOMERGE-OWNER: christopher.waters
#ROBOMERGE-AUTHOR: christopher.waters
#ROBOMERGE-SOURCE: CL 17665881 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v875-17642767)
#ROBOMERGE-CONFLICT from-shelf
[CL 17665943 by christopher waters in ue5-release-engine-test branch]
- Removed some unnecessary code from D3D shader compilers.
- Removing shader VendorExtensions runtime data from platforms that don't need them.
- Turning FShaderCodeFeatures into a set of flags to reduce its size. Adding a few new flags for future use.
- Moved the common D3D12 shader data and creation code into shared locations to cut down on code duplication.
- Removed the unnecessary copying of header data from all D3D12 shader types.
- Removed FD3D12ShaderBytecode since its values can be inferred from other shader data.
#jira none
#rb rolando.caloca, arciel.rekman
#preflight 6140c2df3aa82d000149f13b
#ROBOMERGE-AUTHOR: christopher.waters
#ROBOMERGE-SOURCE: CL 17509617 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v870-17433530)
[CL 17509631 by christopher waters in ue5-release-engine-test branch]
Also remove further references to Hull and Domain shaders as tessellation is no longer supported in UE5.
#rb Will.Damon, Brian.White, Christopher.Waters, Jeannoe.Morissette
[FYI] Carl.Lloyd, Florin.Pascu, Ryan.Vance, Rolando.Caloca, Mihnea.Balta
#jira none
#rnx
#ROBOMERGE-SOURCE: CL 17408818 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v865-17346139)
[CL 17408845 by lukas hermanns in ue5-release-engine-test branch]
- Splitting symbol generation and shader "debug info" generation into two different cvars. This should now allow us to generate symbols post-packaging without generating different shader variants. This should also enable us to always generate symbols and still have the final deduplicated shader sizes.
- r.Shaders.Symbols is now the primary way to enable shader symbols for debugging.
- r.Shaders.GenerateSymbols can be enabled to always generate symbols without writing them to disk.
- r.Shaders.WriteSymbols can be used to force write symbols if they were previously generated.
- r.Shaders.ExtraData can be used to generate shader names for engine runtime systems to use.
- NotifyShaderCooked replaced with NotifyShaderCompiled, prep for upcoming non-cook symbol writing.
- PC DXC shader compiles should only generate debug info when requested, not all the time.
- PC FXC shader compiles should generate debug info when requested, not just when r.Shaders.Optimize is 0.
#jira none
#rb arciel.rekman, lukas.hermanns
#preflight 611ad9035e737200015992db
#ROBOMERGE-SOURCE: CL 17186155 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v855-17104924)
[CL 17186162 by christopher waters in ue5-release-engine-test branch]
- In a complex material, compiler may not be able to see through the code to discover all unused inputs.
E.g. first pass compilation says that input A is unused, but B and C are used. After we rewrite the code to remove A, the code is simpler and compiler is now able to see that B is also unused.
Since we pass the "used attributes" to the next stage, this creates a mismatch where vertex shader outputs only C, but pixel shader (rewritten based on the first pass results) expects B and C.
- The fixed code will check if the unused inputs changed, and if so, will go back and rewrite the code based on a more complete info.
- This fixes a bug that JonL ran into for which I haven't yet created a JIRA (will do before checkin).
#rb Ben.Ingram, Rolando.Caloca, Jason.Nadro
#review @Lukas.Hermanns, @Rolando.Caloca, @Ben.Ingram, @Jason.Nadro, @Kevin.Ortegren
#jira UE-115083
[CL 16312596 by Arciel Rekman in ue5-main branch]
Example usage in a shader:
PLATFORM_ASSERT4(GroupThread > 4321, 0xDF7DC903, GroupThread, GroupIndex, GroupBase, asuint(123.456f));
Example GPU crash report output:
LogD3D12RHI: Error: [GPUBreadCrumb] Last tracked GPU operations:
LogD3D12RHI: Error: [GPUBreadCrumb] 3D Queue 0 - Begin: Frame 348 - Scene - ReflectionIndirect - RayTracingReflections - RayTracingDeferredReflectionsShade 957x466
LogD3D12RHI: Error: [GPUBreadCrumb] Shader assertion failed! ID: 0xDF7DC903
LogD3D12RHI: Error: [GPUBreadCrumb] Payload [int32]: 416 42 172032 1123477881
LogD3D12RHI: Error: [GPUBreadCrumb] Payload [uint32]: 416 42 172032 1123477881
LogD3D12RHI: Error: [GPUBreadCrumb] Payload [hex]: 0x000001A0 0x0000002A 0x0002A000 0x42F6E979
LogD3D12RHI: Error: [GPUBreadCrumb] Payload [float]: 0.000000 0.000000 0.000000 123.456001
This works through automatic diagnostic buffer binding in D3D12 RHI, which becomes available in *any* shader as a UAV.
Opens the door for arbitrary human-readable message output from any shader in the future.
PLATFORM_ASSERT macro is always enabled and available on supported platforms. It is intended to be a low-level mechanism for a higher-level check() that would be controlled via CVars.
#rb Christopher.Waters
[CL 16167404 by Yuriy ODonnell in ue5-main branch]
