Project Diva Extend - Graphical issue

[Leopard20]

What happens?
In song *Hello Planet there's a scene near the 2 minute mark where Miku cries and the camera focuses on the ground and there's supposed to be teardrops on the floor but there's nothing!

What should happen?
Watch this video from an actual PSP (it's not mine). Skip to ~2:00. You can see the teardrops.
https://m.youtube.com/watch?v=F1RDRohjGxA

What hardware and operating system are you running PPSSPP on? GPU might matter if it's a graphical issue.
Android 7.0
Snapdragon 821
Vulkan and OpenGL tested.
Block transfer on or off makes no difference either.

[unknownbrackets]

Could you try exporting a GE debugger dump on PC?

To do this, open the game and select Debug -> GE debugger..., then when it's displaying the scene, press Record in the top right. After a second or so, it'll finish and save a trace of the drawing activity.

After that, check the memstick/PSP/SYSTEM/DUMP folder and it'll have created a file named something like "ULES12345_0000.ppdmp". You can zip that and then drag and drop it into a reply here.

-[Unknown]

[zminhquanz]

I'll check this on my PC

[Leopard20]

Here it is:
DUMP.zip
I wasn't sure if backend mattered, so I recorded two files. The first one is on DirectX 11 and the second one OpenGL.

[unknownbrackets]

The tears in that dump are texture 0x088ed860 (can set a breakpoint to get right there.)

Disabling depth testing makes them visible. They are drawn with src >= dst, where src is in the range of ~13000 and dst is in the range of ~15000.

Depth is initially cleared to 0, then goes up to ~10000, and later the real damage is done by Texture L0: 0x088ec7a0 (16x16). It's drawn with verts well outside valid screenspace, which I believe should be dropped.

So, this is a depth-ish issue but it's also a guardband issue.

-[Unknown]

[hrydgard]

Which means it really just is a guardband issue since the depth problem wouldn't be an issue if that polygon wasn't drawn, right? And thus a manifestation of #9527 .

[unknownbrackets]

Well, I think so. But if that's not it, it's a depth issue.

-[Unknown]

[Leopard20]

@hrydgard @unknownbrackets
Thanks. OGL is fixed now.
However, Vulkan still has issues.

But I think you guys knew that already. So the issue shouldn't be closed.

[unknownbrackets]

Hm. The GE debugger dump doesn't look like that for me in the latest build for Vulkan - it looks the same as OpenGL. But I'll reopen.

-[Unknown]

[Leopard20]

@unknownbrackets Could it be because my driver (Adreno) doesn't support depth clamping?

[unknownbrackets]

Hm, perhaps. At least the culling issue is fixed.

-[Unknown]

[Leopard20]

@unknownbrackets Fixed by the latest commit.