Cooked cooker is a relatively new platform in Unreal that allows producing a cooked editor build and using it to cook new assets (e.g. DLC for the base game). Such cooked cooker build is faster to load than the original editor build that would cook from the source assets, and it can also be more easily deployed to cloud environments.
The problem this fix is solving is as follows:
1) Spline mesh needs collision data from the static mesh it deforms. This collision data is usually derived from its render data.
2) Cooked cooker target platform (see TCookedCookerTargetPlatform) is basically a server build, assets cooked for this platform do not store render data.
3) If a new (uncooked) spline mesh is referencing a static mesh from the base build, it fails to get its collision data because the render data was stripped when producing the cooked version of the base build.
The solution is
- to introduce a new target platform feature that allows to distinguish cooked cooker target platform from other platforms that strip audio-visual data.
- when cooking static meshes for a "cooked cooker" target get a separate copy of the asset's collision data and save it inline in the cooked asset.
- inside the cooked cooker, use this copy as static mesh's collision data instead of trying to derive it from (non-existent at that point) static mesh's render data.
- James Singer reviewed the fixed change.
#rb Brian.Marshall1, Francis.Hurteau, Benn.Gallagher, James.Singer
[CL 30858619 by arciel rekman in 5.4 branch]
[FYI] Arciel.Rekman
Original CL Desc
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Fix inability to cook spline meshes by a cooked cooker.
Cooked cooker is a relatively new platform in Unreal that allows producing a cooked editor build and using it to cook new assets (e.g. DLC for the base game). Such cooked cooker build is faster to load than the original editor build that would cook from the source assets, and it can also be more easily deployed to cloud environments.
The problem this fix is solving is as follows:
1) Spline mesh needs collision data from the static mesh it deforms. This collision data is usually derived from its render data.
2) Cooked cooker target platform (see TCookedCookerTargetPlatform) is basically a server build, assets cooked for this platform do not store render data.
3) If a new (uncooked) spline mesh is referencing a static mesh from the base build, it fails to get its collision data because the render data was stripped when producing the cooked version of the base build.
The solution is
- to introduce a new target platform feature that allows to distinguish cooked cooker target platform from other platforms that strip audio-visual data.
- when cooking static meshes for a "cooked cooker" target get a separate copy of the asset's collision data and save it inline in the cooked asset.
- inside the cooked cooker, use this copy as static mesh's collision data instead of trying to derive it from (non-existent at that point) static mesh's render data.
#rb Brian.Marshall1, Francis.Hurteau, Benn.Gallagher
[CL 30847941 by sean boocock in ue5-main branch]
Cooked cooker is a relatively new platform in Unreal that allows producing a cooked editor build and using it to cook new assets (e.g. DLC for the base game). Such cooked cooker build is faster to load than the original editor build that would cook from the source assets, and it can also be more easily deployed to cloud environments.
The problem this fix is solving is as follows:
1) Spline mesh needs collision data from the static mesh it deforms. This collision data is usually derived from its render data.
2) Cooked cooker target platform (see TCookedCookerTargetPlatform) is basically a server build, assets cooked for this platform do not store render data.
3) If a new (uncooked) spline mesh is referencing a static mesh from the base build, it fails to get its collision data because the render data was stripped when producing the cooked version of the base build.
The solution is
- to introduce a new target platform feature that allows to distinguish cooked cooker target platform from other platforms that strip audio-visual data.
- when cooking static meshes for a "cooked cooker" target get a separate copy of the asset's collision data and save it inline in the cooked asset.
- inside the cooked cooker, use this copy as static mesh's collision data instead of trying to derive it from (non-existent at that point) static mesh's render data.
#rb Brian.Marshall1, Francis.Hurteau, Benn.Gallagher
[CL 30812215 by arciel rekman in ue5-main branch]
The engine uses GRayTracingPlaformMask to compute ShouldCompilePermutation() for shaders. This is filled based on platform settings and capabilities when running the editor. When running a standalone game, the mask is filled purely based on whether ray tracing is enabled for the project (r.RayTracing) and the current runtime environment supports it (GRHISupportsRayTracing).
The new CVar is meant to be consistent between the cook time and run time. This is achieved by setting GRHISupportsRayTracing=false when running on SM5 if r.RayTracing.RequireSM6 is 1.
#rb christopher.waters
#preflight 631f8c8680642a7fa783ca18
#jira UE-163012
[CL 21971785 by Yuriy ODonnell in ue5-main branch]
#jira UE-159832
#rb Aaron.mcleran Phil.Popp Dan.Thompson Josh.Adams
#preflight 62d260033c3df323907eaa93
[CL 21153330 by jimmy smith 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]
* 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]
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]
