jeannoe morissette 890702676c Spec compliant 64bit image atomics in Vulkan: ...

- use STORAGE_IMAGE to read from R64 formats when sampling isn't supported.
- leave high level code and HLSL untouched (RDG will continue to consider them read only access), patch SPIRV instead
- create a codepath for hzb that uses UlongType
- update shader guid for Vulkan to force rebuild

Fixes all validation issues with 64bit atomics and allows the use of RADV driver (AMD+Linux) for Nanite/Lumen.

#jira UE-138513
#preflight 61dc4c98af44b4362836a61f
#rb mihnea.balta
[FYI] Lukas.Hermanns

#ROBOMERGE-AUTHOR: jeannoe.morissette
#ROBOMERGE-SOURCE: CL 18563012 in //UE5/Release-5.0/... via CL 18563033
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)

[CL 18563055 by jeannoe morissette in ue5-release-engine-test branch]

2022-01-10 13:56:47 -05:00

..

Private

Spec compliant 64bit image atomics in Vulkan:

2022-01-10 13:56:47 -05:00

VulkanShaderFormat.Build.cs

UE5 - Remove some hlslcc vestiges from Vulkan

2021-08-31 12:04:32 -04:00