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Suikoden 3 - Top half of screen has garbo

Open RedDevilus opened this issue 5 years ago • 10 comments

Source: https://forums.pcsx2.net/Thread-Bug-Report-1-6-0-Suikoden-3

image

Needs research for the reason of this problem.

Savestates with 1.7 build: https://mega.nz/file/FoZ0AJCC#PxH7OP0CZrqqfq38bEbmq5hBhfMxVqTcw3gX9Tan7cU

RedDevilus avatar Oct 18 '20 17:10 RedDevilus

Still needs research from me but basic idea is there is no TS, instead post-process is done on the EE and done it two halves. a 16 bit depth buffer is repurposed as a scratch buffer to upload to the EE (this is the last thing done, so they don't care if they destroy it).

Bottom halve is classic cache issue, game increments the base pointer to do the bottom and the cache can't deal with it.

tadanokojin avatar Oct 18 '20 17:10 tadanokojin

Still an issue in 1.7.2731 even in software it seems to break.

image

JordanTheToaster avatar May 10 '22 11:05 JordanTheToaster

hows this on latest nightly ?

Mrlinkwii avatar Oct 02 '23 14:10 Mrlinkwii

user confirmed on the forum that it's still bugged. https://forums.pcsx2.net/Thread-Bug-Report-1-6-0-Suikoden-3?pid=638419#pid638419

There is weird stuff going on in this game though.

refractionpcsx2 avatar Dec 16 '23 02:12 refractionpcsx2

I tested it a few weeks ago and it wasn't quite as bad as before (no stripes, just grayscale on the top half and color on the bottom).

Suikoden III_SLUS-20387_20231201213511

CatGreen90 avatar Dec 16 '23 23:12 CatGreen90

yeah, it's doing the shuffle in two halves, so the top half works, then the bottom half misses and doesn't happen.

at least in this scenario

We could use some GS dumps if people want this fixed :P

refractionpcsx2 avatar Dec 16 '23 23:12 refractionpcsx2

yeah, it's doing the shuffle in two halves, so the top half works, then the bottom half misses and doesn't happen.

at least in this scenario

We could use some GS dumps if people want this fixed :P

There are two gsdumps with the latest build here https://forums.pcsx2.net/Thread-Bug-Report-1-6-0-Suikoden-3?pid=638419#pid638419

last post

bigol83 avatar Dec 17 '23 00:12 bigol83

ah thanks, I hadn't rechecked the forum post :)

refractionpcsx2 avatar Dec 17 '23 00:12 refractionpcsx2

Flashback scene is supposed to be black and white, i checked a Ps2 playthrough. Software now shows flashbacks correctly, Hardware renderers have color that isn't supposed to be there. That graphic corruption happening in software too is alot less now, but it's still there.

bigol83 avatar Dec 17 '23 01:12 bigol83

still an issue , its much better than it was , using v2.1.182 image

issue_3849.zip

im gonna post the gs dump provided on the forum , in case it gets lost

Mrlinkwii avatar Oct 03 '24 21:10 Mrlinkwii