PS5PCEM

OXIDE Room 104 — DirectX 12 progress in PS5PCEM A series of early startup blockers is now fixed on main: • HTILE utility draws and checked compute shader loops. • Sampled textures and gathers in compute, including selected mip views. • Uniform DCC handling for sampled/storage textures, including 3D volumes. • RGB10A2 sampling, R8 render targets, and correct handling of inactive MRT slots. Tested with PPSA07653 v01.000.000 on an RTX 3070 Ti. All 51 D3D12 unit tests and the complete native GPU probe suite pass, including memory-preservation and rejection checks. The standard game-run.exe has been rebuilt. DirectX startup is not complete yet: the latest run passes these stops, then reaches an unsupported blended draw into a DCC-enabled RGBA16_FLOAT render target. The only presented frame is black; menu, gameplay and FPS remain unverified. Unsupported work is not skipped, and there is no Vulkan fallback. Existing Vulkan compatibility results are unchanged. Code: https://github.com/iStark/PS5PCEM/commit/fcbbadc44c1d2e99b529cd2629f5369b374ff399 Detailed report: https://github.com/iStark/PS5PCEM/blob/main/docs/development/oxide-room-104-d3d12-startup-2026-11-07.md