[BUG]: Superman Returns : Rendering anomalies once ingame.

[ghost]

Describe the Bug

When going in game in the game "Superman Returns", there are 2 main issues (if we put hardware rendering aside) which are subtle, but noticeable if you know where to look at these.

None of those problems can be fixed with a gamefix or any settings.

1 - Minor SPS at some specific areas in the open world.

For some reasons, the game is producing various SPS when ran into PCSX2 which are not present on original hardware. Yes, there is a gamefix to eliminate most of those, but there are still a couple of those artifacts from time to time in a couple of specific areas.

There is a savestate bundled with the blockdump, in the slot 0, which lead to one of those areas (you have to move back and forth to see the problem).

2 - Missing geometry at the lower-left corner of the screen.

That's the most weird problem of the bunch, for some very odd reasons, the game is not rendering some geometry at the lower-left corner of the screen. This does not happen on original hardware where none of the geometry shown on screen disapear in such a fachion.

As with the first problem, a savestate, in slot 1, will lead you to an area where the issue is very obvious (you will need to turn the camera, left or right, to see the problem)

Reproduction Steps

Load the blockdump and select/load one of the 2 savestates bundled with the blockdump and observe the issues mentioned in the first section of the report.

Expected Behavior

The game should not produce weird SPS in any areas, and should display visible geometry all the time if on-screen.

PCSX2 Revision

pcsx2-v1.7.2656-windows-x86

Operating System

Windows 11

If Linux - Specify Distro

No response

CPU

Intel core I9 9900K

GPU

Nvidia Gefore RTX 3070

GS Settings

The software render is required, the game uses the "VIS Clear".

Emulation Settings

No response

GS Window Screenshots

This is the first bug mentioned in the topic, minor SPS in some specific areas, this is how you should test the game to trigger the SPS issues:

https://user-images.githubusercontent.com/104388474/165183484-1bfb6099-e27a-49c9-bd83-747784126a0d.mp4

And this is the second problem, disappearing geometry at the lower-left portion of the screen:

First, a comparison between PCSX2 and real hardware:

This is PCSX2 (pay attention to the red circle):

And real hardware, see the difference:

Now the bug in motion:

https://user-images.githubusercontent.com/104388474/165183841-42a572d8-fa49-4f12-8659-d4af895fa4a5.mp4

Logs & Dumps

This is the Blockdump + savestates package for testing:

https://drive.google.com/file/d/1RynxtAWa4jG-0KxQ2oTUOWYMe5f-HBMx/view?usp=sharing

MD5 of the iso file: 8c502adc891b80affe269115b9237370 (matches the redump entry so the iso file is correct - http://redump.org/disc/26391/).

[Mrlinkwii]

can this be check on latest nightly :)

[Technostrophe]

Still an issue as of v1.7.4075

[Technostrophe]

A year later, remains an issue as of 1.7.5590

[LoStraniero91]

The diseapparing geometry is actually a side-effect of using the VU Overflow Hack, but that's needed to fix the major SPS issues.

[refractionpcsx2]

yeah the overflow hack doesn't really fix much, we can't magically use overflows properly, but yeah it's enough to stop the game exploding.