- Implemented common transient page allocator in RHICore.
- Implemented XBox specific GPU page table mapping allocator.
- Extended RDG insights to support viewing heap visualization or page pool visualization.
#preflight 61d356682e0e436c725818bf
#ushell-cherrypick of 18504626 by zach.bethel
#ROBOMERGE-AUTHOR: zach.bethel
#ROBOMERGE-SOURCE: CL 18565702 in //UE5/Release-5.0/... via CL 18565762
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18565807 by zach bethel in ue5-release-engine-test branch]
Having only one Append overload with a single argument makes for clearer error messages. Otherwise, a failure to match Append(CharRangeType) leads to an error that ArgType cannot be converted to CharType.
#rb Zousar.Shaker
#preflight 61d72f3f6511bc498e54c250
#ROBOMERGE-OWNER: devin.doucette
#ROBOMERGE-AUTHOR: devin.doucette
#ROBOMERGE-SOURCE: CL 18533638 in //UE5/Release-5.0/... via CL 18534325
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18534364 by devin doucette in ue5-release-engine-test branch]
- Produces an image in Saved/Profiling with the preloaded and created shaders, helping to understand preloading / creation patterns.
- Only works on desktop platforms in Development. Disabled by default (set r.ShaderCodeLibrary.VisualizeShaderUsage=1 in ini to enable).
#rb Ben.Ingram
[REVIEW] [at]Ben.Ingram
#ROBOMERGE-AUTHOR: arciel.rekman
#ROBOMERGE-SOURCE: CL 18528155 via CL 18528185 via CL 18528187 via CL 18528288 via CL 18528302
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18528308 by arciel rekman in ue5-release-engine-test branch]
- Whenever looking up the running platform, just use the CVar's value directly instead of parsing ini values
#jira UE-138392
#rb arciel.rekman
#p4v-preflight-copy 18520954
#preflight 61d5f3c6d17842e547bbd280
#ROBOMERGE-OWNER: josh.adams
#ROBOMERGE-AUTHOR: josh.adams
#ROBOMERGE-SOURCE: CL 18524243 via CL 18524264 via CL 18524271 via CL 18524273 via CL 18524712 via CL 18524733
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18524741 by josh adams in ue5-release-engine-test branch]
- allow for FConsoleVariableRefs to have other platforms
- dpreload now clears out cached cvar values and also expanded cvars inside the deviceprofiles
#jira UE-137816, UE-138032
#preflight 61d3bcf2c73b7e46b258511f
#rb francis.hurteau
#p4v-cherrypick 18514921
#p4v-cherrypick 18515238
#ROBOMERGE-OWNER: josh.adams
#ROBOMERGE-AUTHOR: josh.adams
#ROBOMERGE-SOURCE: CL 18515847 via CL 18515849 via CL 18516128 via CL 18516130
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18516132 by josh adams in ue5-release-engine-test branch]
RHIs interface update.
Not implemented on Switch, Mac and OpenGL yet.
Tested with Strata on pc dx11/dx12, xb1 base, ps4 and ps5.
Tested wihtout Strata on pc and ps4.
ShooterGame test on PC
Mac preflight https://horde.devtools.epicgames.com/job/61b268709947f1ef980c602e
#preflight test https://horde.devtools.epicgames.com/job/61b26827b13fefb344312f11
#rb RHI, Console
#ROBOMERGE-AUTHOR: sebastien.hillaire
#ROBOMERGE-SOURCE: CL 18508188 in //UE5/Release-5.0/... via CL 18508208
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18508217 by sebastien hillaire in ue5-release-engine-test branch]
- Provides about 8% runtime memory savings (in local tests).
- Also, adds more compression types for shaders.
- Impact on the shader compilation (in SCWs) seems to be negligible in local tests.
#rb Devin.Doucette, Charles.Bloom
[REVIEW] [at]Devin.Doucette, [at]Charles.Bloom, [at]Jason.Nadro
#jira UE-136845
#ROBOMERGE-AUTHOR: arciel.rekman
#ROBOMERGE-SOURCE: CL 18502862 via CL 18503105 via CL 18503112 via CL 18505939 via CL 18505950
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18505961 by arciel rekman in ue5-release-engine-test branch]
- Added console command syntax for viewing the value from the editor (<CVarName>[at]<PlatformName>)
- Converted FShaderPlatformCachedIniValue to use the new system (which will give a better possible value on the target platform). Eventually, this can be replaced with direct calls to GetPlatformValueVariable(ShaderPlatformToPlatformName(SHaderPlatform))
#p4v-preflight-copy 18268687
#preflight 61ba5a7aed09cd864b35372b
#rb arciel.rekman
#ROBOMERGE-OWNER: josh.adams
#ROBOMERGE-AUTHOR: josh.adams
#ROBOMERGE-SOURCE: CL 18476914 via CL 18479791 via CL 18482819 via CL 18482821 via CL 18483214 via CL 18483227
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18483239 by josh adams in ue5-release-engine-test branch]
Start or stop trace GPU channel could lead to mismatched scope begin/end.
[FYI] zach.bethel
#preflight 61bc0e61b12f441ed9e0e118
#ROBOMERGE-AUTHOR: jeremy.moore
#ROBOMERGE-SOURCE: CL 18483144 in //UE5/Release-5.0/... via CL 18483148
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18483149 by jeremy moore in ue5-release-engine-test branch]
Start or stop trace RDG channel could lead to mismatched scope begin/end.
#preflight 61bb55cfbd7d5fe54ec56d29
#rb guillaume.abadie
[FYI] zach.bethel
#ROBOMERGE-AUTHOR: jeremy.moore
#ROBOMERGE-SOURCE: CL 18475949 in //UE5/Release-5.0/... via CL 18481328
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18481434 by jeremy moore in ue5-release-engine-test branch]
There remain significant visual artifacts in the Virtual Production City map. Lumen has serious issues with multiple views in both single and multi-GPU modes -- I think Lumen data needs to be split per view family to solve this. There is some corrupt geometry in the second view, which may be Nanite or instance rendering related (or something else entirely). To narrow down these issues, I think I'm going to need to extend the DumpGPU feature to be able to do more effective MGPU graphical debugging, since none of PIX, RenderDoc, or NSight work. But at least it doesn't crash now...
Full list of changes:
* CVAR (DC.MultiGPUMode) to override multi-GPU mode for Display Cluster, debug feature copied over from 4.27.
* Barrier and synchronization fixes for RHITransferTextures copied over 4.27. Future work will make RDG handle multi-GPU transitions more seamlessly...
* CVAR (DC.ForceCrossGPUCopy) to force expensive full synchronization and copy of resources cross GPU at the end of each view family render (for debugging). RHITransferTextures upgraded to support copying things besides 2D textures, including other texture resources and buffers.
* AFR temporal fixes from a previous CL (which I moved from my single GPU to multi GPU PC), now improved to avoid some validation asserts in Debug builds (pass inputs not declared, GetParent()->GetRHI() not working because parent not declared to pass).
* Ray tracing (hang): acceleration buffers are branched per GPU, as GPU virtual addresses for resources internally referenced by these buffers may vary per GPU. Needed to add infrastructure to support buffers that duplicate memory per GPU, rather than using driver aliasing of the underlying resource.
* Ray tracing (hang): some buffer bindings weren't using a proper GPU index.
* Nanite (hang): Force initial clear of Nanite.MainAndPostNodesAndClusterBatchesBuffer to run on all GPUs. Solves GPU hang in shadow rendering the first frame (due to shadow rendering running across all GPUs), and later random hangs in view rendering.
* Distance field streaming (assert): GPU readback staging buffers need to be branched per GPU, as the underlying class is single device. GPU readback buffers and textures properly take into account the GPU they were last written on when locking and unlocking. Includes handling an edge case where a write can be queued when a lock is active, due to the deferred way commands are played back in the render graph.
* Distance field streaming (assert): UAV clear wasn't taking into account GPU index.
* GPU scene update needs to run across all GPUs.
* Fix for "DumpGPU" command to avoid assert with MGPU -- arbitrarily pick a GPU (last index) when the GPU mask contains multiple bits. Hope to improve this in the future, but it works.
#rnx
#rb mihnea.balta juan.canada tiago.costa kenzo.terelst
#jira none
#preflight 61ba7edbdc58e54b3318fdf5
#ROBOMERGE-AUTHOR: jason.hoerner
#ROBOMERGE-SOURCE: CL 18472819 in //UE5/Release-5.0/... via CL 18473380
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18473412 by jason hoerner in ue5-release-engine-test branch]
