- Refactord 'Finalized Access' feature into a more flexible 'External' vs. 'Internal' access mode per resource toggle.
- Resources can transition between modes multiple times within the graph.
- Supports async compute pipeline.
- Supports queueing of requests to avoid back-to-back helper passes.
- This feature is needed to support conversion of GPU scene buffers.
- Deprecated the ReadOnly and ForceTracking resource flags and added a 'SkipTracking' flag instead.
- Previous semantics were confusing and error prone.
- New model requires a manual flag to tell RDG never to transition a resource.
- This flag is used for read-only dummy resources as an optimization.
- Renamed some of the auxiliary 'FinalizedResource' utilities since the name no longer matches the semantics.
#preflight 6266cc6d0634d0904ce4ba46
[CL 19904734 by zach bethel in ue5-main branch]
- Added resource pool counters and events.
- Added AllocatePooledBuffer method and refactored pool to no longer take a command list.
- Refactored swap chain barrier logic to be a bit cleaner.
- Added helper methods to cast between views.
- Added power of two alignment option to buffer pool.
- Added GetTypeHash implementations for RDG SRV | UAV descriptors.
#preflight 62631046006fa20b683d130f
[CL 19873407 by zach bethel in ue5-main branch]
- New RHI command list SetTrackedAccess method for the user to supply a current whole-resource state.
- New RHI command context GetTrackedAccess method for querying the tracked access in RHIBeginTransitions / RHIEndTransitions on the RHI thread.
- Hooked RHICmdList.Transition and FRHICommandListExecutor::Transition to assign tracked state automatically.
- Refactored RDG and resource pools to use new RHI tracking.
- FRDGPooledBuffer / FRDGPooledTexture no longer contain tracked state. RDG temp-allocates state through the graph allocator instead.
- All prologue transitions are 'Unknown', and all epilogue transitions coalesce into a whole resource state.
- Implemented platform support for patching the 'before' state with the tracked state.
- Implemented various RHI validation checks:
- Asserts that the user assigned tracked state matches RHI validation tracked state, for all subresources.
- Asserts that tracked state is not assigned or queried from a parallel translation context.
- Added FRHIViewableResource and FRHIView base classes to RHI. FRHIView contains a pointer to an FRHIViewableResource. This is currently a raw pointer, but should be extended to a full reference in a later CL.
NOTE on RHI thread constraint:
Transition evaluation is now restricted to the RHI thread (i.e. no parallel translation contexts). Transitions aren't performed in parallel translate contexts anyway, so this is not a problem. If, however, we decide to refactor parallel translation to be more general, this implementation could be extended to track the state per context and update from the 'dispatch' thread.
#preflight 6233b4396666d7e753a16aaf
#rb kenzo.terelst
[CL 19513316 by zach bethel in ue5-main branch]
- Deprecated legacy members from FPooledRenderTargetDesc.
- Deprecated ETextureRenderTarget and removed from RDG.
- TargetableTexture always equals ShaderResourceTexture.
- Simplified render target pool FindFreeElement.
- Create pooled buffers and textures with a known state.
#rb graham.wihlidal
#preflight 61f8488568795b2f45852274
#ROBOMERGE-AUTHOR: zach.bethel
#ROBOMERGE-SOURCE: CL 18796880 in //UE5/Release-5.0/... via CL 18797840 via CL 18799070
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v908-18788545)
[CL 18799188 by zach bethel in ue5-main branch]
Note: the existing versions have not been deprecated since they are more straightforward (they clear only a single mip/slice).
#rb zach.bethel
#preflight 61ef0a62ca3de856bcd670de
#ROBOMERGE-OWNER: jonathan.bard
#ROBOMERGE-AUTHOR: jonathan.bard
#ROBOMERGE-SOURCE: CL 18724174 via CL 18724195 via CL 18724225 via CL 18725569 via CL 18725818
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v903-18687472)
[CL 18725830 by jonathan bard in ue5-main branch]
* Added single-callback version of CreateStructuredBuffer to automatically infer element size, total size, element count and data pointer (e.g. CreateStructuredBuffer(GraphBuilder, TEXT("MyBuffer"), [&]() -> auto& { return BufferSource; });, where BufferSource is a TArray)
* Added support for uint2 shader parameters
* Added ForceTracking flag to ERDGBufferFlags/ERDGTextureFlags : force the RDG to track a resource even if it can be considered as readonly (no UAV, no RTV, etc.) This allows the graph to copy from and to external textures, and handling the corresponding transitions, for example.
#rb zach.bethel, sebastien.lussier
#tests editor
#preflight 61d8bc681f62d3ad4d728095
#ROBOMERGE-OWNER: jonathan.bard
#ROBOMERGE-AUTHOR: jonathan.bard
#ROBOMERGE-SOURCE: CL 18595021 via CL 18595031 via CL 18595035 via CL 18595668 via CL 18595682 via CL 18595700
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Test -> Main) (v899-18417669)
[CL 18596726 by jonathan bard in ue5-main branch]
- Strata render targets follow base pass load action.
- There is now an option to never clear the non first uint target
- On console, fast clear is leveraged
- SSData is cleared during the categorisation pass if the pixel is non SSS only
- This shaved 1.3ms on one platofrms and 0.3ms on another
#rb charles.derousiers
#ROBOMERGE-AUTHOR: sebastien.hillaire
#ROBOMERGE-SOURCE: CL 18381680 in //UE5/Release-5.0/... via CL 18381698
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18381712 by sebastien hillaire in ue5-release-engine-test branch]
- Factor out the batching setup & merging from the deferred instance culling
- Refactor the instance culling load balancer to be able to share types between different allocators
- Make batching logic use scene rendering allocator
- Rename RenderVirtualShadowMapsHw to RenderVirtualShadowMapsNonNanite (and similar names)
- Refactor view setup logic for Nanite & Non into common functions
#rb andrew.lauritzen
#ROBOMERGE-AUTHOR: ola.olsson
#ROBOMERGE-SOURCE: CL 18293379 via CL 18373760 via CL 18373855
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18373879 by ola olsson in ue5-release-engine-test branch]
This ensure that the clearing happen only through the dedicated UAV pass.
This fixes classification issue for tile at the horizon.
#rb none
#jira none
[FYI] sebastien.hillaire
#ROBOMERGE-AUTHOR: charles.derousiers
#ROBOMERGE-SOURCE: CL 18313006 in //UE5/Release-5.0/... via CL 18313327
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18313568 by charles derousiers in ue5-release-engine-test branch]
- preparational step to enable HZB culling of invalidations in an uniform way.
- also add FComputeShaderUtils helper to set up an indirect dispatch.
#rb andrew.lauritzen
#preflight 6130818017a8610001b0cfc7
#ROBOMERGE-SOURCE: CL 17400532 via CL 17400838
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v865-17346139)
[CL 17400862 by ola olsson in ue5-release-engine-test branch]
- Added ERDGBuilderFlags::AllowParallelExecute to tag specific builders to attempt parallel execution. This avoids cases where small graphs fork tasks and end up causing contention. Only the main scene render graphs are tagged.
- Moved RHI transition creation to an async task.
- Moved parallel execute setup and dispatch to an async task.
- Fixed RDG draining asserts using a short-term workaround by tagging relevant scene textures as non-transient.
- Deprecated RDG AddPass utilities without names and fixed up last remnants.
- Enabled parallel RDG execution by default.
[FYI] christopher.waters
#ROBOMERGE-SOURCE: CL 16925941 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v836-16769935)
[CL 16925957 by zach bethel in ue5-release-engine-test branch]
- Makes the assumption (checked) that dimensions are at least 128 in both X and Y.
#rb Krzysztof.Narkowicz,Sebastien.Hillaire,Rune.Stubbe
#preflight 60d059002ab2180001122cef
#ROBOMERGE-SOURCE: CL 16725805 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v835-16672529)
[CL 16725819 by ola olsson in ue5-release-engine-test branch]
