Regression - Grandia jpn & Grandia Eng patch - texture flickering - Single RAM

[JaeOfMordor]

since core revision Saturn_unstable_20240417, grandia displays a reproducible flicker to many different textured surfaces.

tested and confirmed on two different Single RAM MiSTer's, one with a 2.9 ram, one with a 3.0.

[JaeOfMordor]

https://github.com/MiSTer-devel/Saturn_MiSTer/assets/114522512/3bc88e24-45d9-404f-a641-95ff39c14037

this is how it appears on all cores from Saturn_unstable_20240417 & onward

the games frame-rate is also lower since this graphical issue started

[JaeOfMordor]

and compared with the core prior to the issue starting,

https://github.com/MiSTer-devel/Saturn_MiSTer/assets/114522512/ffbf970c-9cdc-44c6-8a0c-d7e63c103147

Saturn_unstable_20240409

[JaeOfMordor]

the flickering can be seen from the 1st scene after the opening cutscene finishes playing,

https://github.com/MiSTer-devel/Saturn_MiSTer/assets/114522512/17d9bdc4-02b0-4aab-9ab0-34468b1793cb

Saturn_unstable_20240417 & onward

[Kuba-J]

I just wanted to add , that this flickering does not occur for every user.

[srg320]

73793038788__6D335A65-6618-46E5-8CF6-F1F5A022B6A4.MOV this is how it appears on all cores from Saturn_unstable_20240417 & onward

the games frame-rate is also lower since this graphical issue started

How to get to that place in the game quickly?

[JaeOfMordor]

73793038788__6D335A65-6618-46E5-8CF6-F1F5A022B6A4.MOV this is how it appears on all cores from Saturn_unstable_20240417 & onward the games frame-rate is also lower since this graphical issue started

How to get to that place in the game quickly?

the flickering can be seen by selecting New Game and waiting for the opening cutscene to finish.

traveling around the town also causes the town to Stutter as the camera moves

[JaeOfMordor]

getting into the building you can see in the first video I recorded, requires you to find the three treasures, pass all the cut scenes and then you can access that part of the town with the building; if you would like a save with quick access to that point i’ll try send it to you.

[JaeOfMordor]

UPDATE: this looks to be an issue that can fix itself by selecting reset settings from within the core menu.

i will confirm when i get back from work in about 3 hours.

thank you for your time @srg320

[srg320]

The flickering issue in the opening cutscene has been fixed from 17.04.24.

The flickering issue in the town I can't reproduce for now. How do I get to that location you have in the first video?

[JaeOfMordor]

it is here over the bridge from the start of the game,

you need to play until the game opens up the other half of the town

[JaeOfMordor]

the issue appears in any building you can go into

[JaeOfMordor]

an example https://github.com/MiSTer-devel/Saturn_MiSTer/assets/114522512/77cc3b49-89c6-4614-8c44-c40491e36740

[Zet-sensei]

I tried multiple times today and I can't seem to be able to reproduce that issue.

Tests were done with a 2.9 Dual RAM system, with core version 20240520.

I can leave a save game file for the translated version (after the 3 treasures recovery) and you need to go the to museum. As you can wander around the town too.

Grandia (Japan) (4M) patched.zip

[L0velime]

I am also experiencing the exact same flickering in Grandia opening scene, with english patch (v 1.1.1) as a CHD file using the HiSaturn v1.02 bios on the last couple of unstable core builds I have tested, which I did not experience before with previous builds. I have also tested with the latest unstable mister main (240520), which did not fix it.

Latest stable saturn core build seems to work as intended with no glitches in the realtime rendered opening scene though.

3.0 RAM single module (seems stable at 145 MHz (60+ minutes). 5V, 4A, 20W power supply.

using Mister v240520, OS v231108, Saturn unstable 240417, 240504 and 240520 all experience flickering for me.

edit: I tried the above sugestion of reseting the settings in the core, but that did nothing for me. edit2: It is also appearing inside of buildnings.

[L0velime]

The issue still persist, the RAM rework did not fix the issue.