Emulator Issues #13339


[Android] Sonic Unleashed broken graphics on Mali GPU

Added by MrMrMANGOMILK 10 months ago. Updated 3 months ago.

% Done:


Operating system:
Issue type:
Relates to usability:
Relates to performance:
Relates to maintainability:
Regression start:
Fixed in:


Game Name?

Sonic Unleashed

Game ID? (right click the game in the game list, Properties, Info tab)


MD5 Hash? (right click the game in the game list, Properties, Verify tab, Verify Integrity button)

This option is unavailable in the Android app, but I have the same file on my PC:

What's the problem? Describe what went wrong.

Lots of general visual bugs. Sonic is translucent, lots of billboarded sprites have incorrect transparency and layering, the skybox also has layering problems, etc.

What steps will reproduce the problem?

This happens when trying to boot the game normally. I have done a lot of troubleshooting to try and fix the issue but none of the toggles help (which is a good thing, because this particular device needs lots of hacks to get games running)

Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.

Yes: 5.0-19978

Is the issue present in the latest stable version?

Dolphin 5.0 is unavailable on Android. I know the issue is present in versions older than the latest beta version (which is 5.0-19870) - I recently updated from 5.0-19791, which also has the issue

If the issue isn't present in the latest stable version, which is the first broken version? (You can find the first broken version by bisecting. Windows users can use the tool and anyone who is building Dolphin on their own can use git bisect.)

Testing for this sort of thing is unfortunately rather difficult since I am using Android. Every Dolphin version I have tried since I got the device in question is broken in the same way. I got the device in May 2023.

If your issue is a graphical issue, please attach screenshots and record a three frame fifolog of the issue if possible. Screenshots showing what it is supposed to look like from either console or older builds of Dolphin will help too. For more information on how to use the fifoplayer, please check here:

Fifologs seem to be unavailable on Android.

What are your PC specifications? (CPU, GPU, Operating System, more)

Retroid Pocket 3 Plus
Unisoc T618 (2 + 6)
Mali G52 MC2@850MHz
Ram: 4GB LPDDR4x@1866MHz
Android 11

Is there anything else that can help developers narrow down the issue? (e.g. logs, screenshots,
configuration files, savefiles, savestates)

I am using the Vulkan backend. This game is known to have an unrelated issue where OpenGL shows no visuals at all, at least on Android, so switching backends doesn't help.

Unlisted Youtube video: (apologies for the camera quality, i don't think a screen recorder would have played very well with this device)


RSVE8P_2023-08-22_12-03-49.png (316 KB) RSVE8P_2023-08-22_12-03-49.png RP3+ world map MrMrMANGOMILK, 08/22/2023 04:12 PM
RSVE8P_2023-08-22_12-07-07.png (450 KB) RSVE8P_2023-08-22_12-07-07.png Normal world map (taken on my PC) MrMrMANGOMILK, 08/22/2023 04:12 PM
RSVE8P_2023-08-22_12-04-20.png (1.12 MB) RSVE8P_2023-08-22_12-04-20.png RP3+ Windmill Isle 1 (invisible Sonic, broken skybox) MrMrMANGOMILK, 08/22/2023 04:12 PM
RSVE8P_2023-08-22_12-07-30.png (532 KB) RSVE8P_2023-08-22_12-07-30.png Normal Windmill Isle 1 MrMrMANGOMILK, 08/22/2023 04:12 PM
RSVE8P_2023-08-22_12-07-54.png (542 KB) RSVE8P_2023-08-22_12-07-54.png Normal Windmill Isle 2 MrMrMANGOMILK, 08/22/2023 04:13 PM
RSVE8P_2023-08-22_12-04-57.png (1.1 MB) RSVE8P_2023-08-22_12-04-57.png RP3+ Windmill Isle 2 MrMrMANGOMILK, 08/22/2023 04:13 PM
RSVE8P_2023-08-22_12-05-01.png (1.08 MB) RSVE8P_2023-08-22_12-05-01.png RP3+ - Here you can see the issue with transparency. The texture for the dust Sonic kicks up is much less transparent than it should be. MrMrMANGOMILK, 08/22/2023 04:14 PM
RSVE8P_2023-08-22_12-08-02.png (507 KB) RSVE8P_2023-08-22_12-08-02.png Normal dust clouds MrMrMANGOMILK, 08/22/2023 04:14 PM
RSVE8P_2023-08-22_12-08-15.png (472 KB) RSVE8P_2023-08-22_12-08-15.png Normal skybox/leaves MrMrMANGOMILK, 08/22/2023 04:15 PM
RSVE8P_2023-08-22_12-05-16.png (1.04 MB) RSVE8P_2023-08-22_12-05-16.png RP3+ - A bit further into the level, you can see the skybox slightly better here. I also tried to show the leaves blowing past, which have their transparency replaced with white, but it is difficult to see in this screenshot. MrMrMANGOMILK, 08/22/2023 04:15 PM
Actions #1

Updated by MrMrMANGOMILK 10 months ago

I just realized I forgot to enable the option to take internal-resolution screenshots on the RP3 side - both games are running at a 1x resolution

Actions #2

Updated by MrMrMANGOMILK 3 months ago

Once again I am discovering much later that an issue with Sonic Unleashed on Android is related to Vulkan. -_- Back on the RP3 in that version of Dolphin, OpenGL showed no 2D graphics for this game at all (and potentially no 3D ones? I forget). I now own a Retroid Pocket 4 Pro instead, which has a Mali G77 GPU. The same issues are present with the Vulkan backend, but the game actually runs completely perfectly on OpenGL for some reason. I'm now on Dolphin 5.0-21088

Actions #3

Updated by Billiard26 3 months ago

  • Operating system Android added
  • Operating system deleted (N/A)

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