Mahjong Artifacts missing part of the game play area

[benderscruffy]

Game or games this happens in

Mahjong Artifacts NPUZ00062

What area of the game / PPSSPP

missing part of the game play area

here is a GE Dump
NPUZ00062.zip

What should happen

this is what it is supposed to look like

Logs

No response

Platform

Windows

Mobile phone model or graphics card

AMD RX 580

PPSSPP version affected

PPSSPP v1.13.1-249

Last working version

No response

Graphics backend (3D API)

Vulkan

Checklist

• Test in the latest git build in case it's already fixed.
• Search for other reports of the same issue.
• Try resetting settings or older versions and include if the issue is related.
• Try without any cheats and without loading any save states.
• Include logs or screenshots of issue.

[unknownbrackets]

I'm pretty sure this is depth related - the dump unfortunately doesn't include the board, which must've been rendered in a previous frame. A frame dump while using the software renderer would be helpful.

That said, the minz and maxz are both set to exactly 0, and I think some accuracy issue is causing the top left (which does use zero depth values) not render.

-[Unknown]

[sum2012]

Last bad v1.13.1-289-ga35d26190
First good v1.13.1-291-g8d0c84bf0
That mean #15845
It is simple workaround for fix for another game.
Not sure can close

[hrydgard]

That should be fixed once #15858 is in, since the feature that #15845 fixes goes away and is replaced with a different method to achieve the same thing.

[unknownbrackets]

Is this still working now in the latest git?

-[Unknown]

[sum2012]

v1.13.1-381-g5046cbd01 still working

[unknownbrackets]

Thanks for confirming - I'll close this then.

-[Unknown]

[sum2012]

2 nd try no problem

[hrydgard]

Thanks, will look into it.

[sum2012]

@benderscruffy Can you try v1.13.1-381-g5046cbd01 ?

[sum2012]

@benderscruffy How about v1.13.1-291-g8d0c84bf0 ?

[unknownbrackets]

Strangely, even the software renderer frame dumps have black sections (the texture is black.) I suspect this game renders the board either on CPU or to a temporary buffer, and then just textures from that. Somehow, some parts of that are coming out black.

It could be a misdetected framebuffer suboffset. That said, I don't see why software would have black textures...

-[Unknown]

[hrydgard]

Hm, got a similar report through e-mail that looks a little bit different:

[hrydgard]

Like the others, this is not likely to be specific to your old pc, so I'm reopening.

[sum2012]

v1.16.6-372-gc3f881b7a
I am using integrated AMD gpu of cpu (AMD Ryzen 7900)

[hrydgard]

@sum2012 could you try this again on AMD? I suspect a recent fix might have taken care of that.

[sum2012]

v1.17.1-1268 not solved
edit: Nvidia GT 710 also same issuee

[sum2012]

soft gpu get assort

[hrydgard]

Hm, ok, different problem then. Also, thanks for reporting the softgpu one, I'll fix it shortly!

[hrydgard]

two more things, sorry @sum2012 :

Could you get a GE frame dump? I can't find one in the previous posts.

Also, I can't figure out how that can happen, looking at the code :/

What GPU do you have? Do you enable frameskipping or something?

[hrydgard]

Never mind, I think I figured out the assert. #19532

The rendering bug in this game is still a mystery though, will at least need a framedump. But fortunately playing with the software renderer should be fine in a game like this.

[sum2012]

v1.17.1-1275 the softgpu is fixed.
framedump is in the first post