Revert changes from 19848183. A genuine fix was applied in 20181447 so that we don't need to apply a minimum texture size as a workaround for the original bug.
#preflight 627e74b85d0fe3ffef44f61c
[CL 20181952 by Jeremy Moore in ue5-main branch]
- 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]
Apply minimum width to page table to avoid bug on one platform.
Further RHI investigation needed to find issue with small page table texture.
#rnx
#preflight 626157a9731f07cd5ccd11c5
[CL 19848183 by Jeremy Moore 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]
Integrate virutal texture allocator improvements from main.
[FYI] ben.ingram
#lockdown kevin.ortegren
#ROBOMERGE-SOURCE: CL 15922154 in //UE5/Release-5.0-EarlyAccess/...
#ROBOMERGE-BOT: STARSHIP (Release-5.0-EarlyAccess -> Main) (v786-15839533)
[CL 15922638 by jeremy moore in ue5-main branch]
- Check partially allocated block for fit, don't need to start with a completely free block for allocations
- Try to use the lowest possible vAddress for new allocations, this reduces the texture area covered by allocations
- Page table is no longer required to be square power-2 texture, instead allow it to grow organically as allocated area increases
- Allocator starts with maximum-sized block and tracks allocated area, no longer needs special logic to 'grow'
- Rectangular allocated VTs now mip based on min-size rather than max-size, relaxes alignment requirements and allows better packing
#rb jeremy.moore
#jira none
[CL 15825578 by Ben Ingram in ue5-main branch]
