[Regression] LittleBigPlanet 2 Special Edition [BCUS98372] - Severe Graphical Issues on Vulkan

[alexconsole04]

Quick summary

As of PR 15160 being merged, LBP2 and LBP3 has awful tearing and severe graphical issues that only happens on Vulkan.

Details

On LBP2 and LBP3, when walking, the screen will start to tear on the bottom left corner. When some particle effects are on screen, like the gas on the screenshot, you will see these artifacts. As mentioned, this only occurs on Vulkan. OpenGL does not have this issue. The issue has been known for a while, but no reports were made and the workaround to this was to either enable Force CPU Blit Emulation or use the "Disable MLAA" patch, which both disable certain graphical effects, but also prevents this issue from happening.

Build with regression

v0.0.30-16074-4746ef09

Attach two log files

Working: RPCS3.log.gz

Broken: RPCS3.log.gz

Attach capture files for visual issues

https://www.mediafire.com/file/rquh96l3y1im77f/BCUS98372_20250808204532_capture.rrc.gz/file

System configuration

No response

Other details

While this is reported on Special Edition, this happens on all versions of LBP2 and LBP3.

[alexconsole04]

Just a friendly reminder for those who used Refresher to patch the game for online, the Disable MLAA patch will not work since the PPU hash is modified. If you wish to still use it, you need to either edit the patch to use the patched PPU hash or use cpu blit emulation instead.

[Revenge209]

All because they want to fix Split/Second, this issue happened in LittleBigPlanet 1, 2, 3, Karting, and ModNation Racers.

[alexconsole04]

Showing this off on LBP3, this is still an issue.

RPCS3.log.gz