Sackboy: A Big Adventure (PPSA01289)

[billythemenace2]

Existing thread

• I searched this category for the title ID and no thread exists for this title on any platform.

Title

Sackboy™: A Big Adventure (PPSA01289)

Content version tested

01.024.000

AnyPS5 commit

main aff725bf6 plus #6236 (PlayGo unlisted-chunk setting, merged 17 October), plus the mesh-path fallback from #6528, now on billythemenace2/AnyPS5@feat/agc-mesh-compute-fallback.

System tested

Windows 11 (10.0.26200), AMD Radeon RX 5700 XT (driver 32.0.21045.5002), WinLibs GCC 15.2.0 r7 (x86_64-ucrt-posix-seh)

Furthest point

Logos or loading screen

What is shown

A black screen with the spinning Sackboy loading icon in the bottom-right corner, at about 54-60 FPS (from the window title). It stays there for at least 5 minutes, with no crash. Audio and input were not checked yet.

Current blocker

1. No mesh shaders on the RX 5700 XT (RDNA1). The title's NGG programs take AnyPS5's mesh path, which needs VK_EXT_mesh_shader. On current main the first such draw stops with a mesh shader error; fix(agc): refuse mesh-path draws on a device without mesh shaders before validating them #6523 makes that refusal clear. AGC: run mesh-path draws on devices without mesh shaders through a compute pass and an indexed draw #6528 proposes running those draws through a compute pass and an ordinary draw instead. With my local prototype of it, the title gets past those draws, including a layered full-screen pass it repeats 32 times per frame, and reaches the loading screen above. Devices with mesh shaders are not affected by this blocker.
2. Loading screen. Not investigated yet. It is not known whether it waits on something the emulator is missing, or whether the prototype renders the layered pass wrongly.

What the title still needs

• APS5_PLAYGO_UNLISTED_CHUNKS=absent, from fix(libScePlayGo): let users answer unlisted chunks #6236 (merged). The dump has no PlayGo files; with installed, Unreal runs out of memory at startup allocating 5,565,054,976 bytes (details on fix(libScePlayGo): let users answer unlisted chunks #6236).
• On a GPU without mesh shaders, the fallback from AGC: run mesh-path draws on devices without mesh shaders through a compute pass and an indexed draw #6528.

How it was run

eboot.bin converted to eboot.elf with SelfUtil, modules kept where the title has them (sce_module/), then:

relinker --windows --windows-diagnostics --registry eboot.elf app.exe

Environment: APS5_PLAYGO_UNLISTED_CHUNKS=absent.

I used Claude to investigate this and write the report.