Emulator

Game Name?

Star Fox Adventures

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

GSAE01

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

afb0306454b581e37a62170fdfd1de09

What's the problem? Describe what went wrong.

Something in the 5.0-12078 code change drastically damaged the rendering of Star Fox Adventures' screen-space blur effects if any kind of Anti-Aliasing is enabled at all. It appears that the generated map for determining where a particular kind of screen space blurring effect should occur are either mis-aligned or missing when Anti-Aliasing is enabled. The result is that many cutscenes and all fighting sequences are now blurry or glitched.

What steps will reproduce the problem?

1. Run Star Fox Adventures in version 5.0-12078 or later.
2. View first cutscene or enter a fight with an enemy.

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

It is in the latest version (5.0-12320). I bisected versions until I found the change:

• dolphin-master-5.0-12076-x64 - no bug
• dolphin-master-5.0-12078-x64 - bug (FIRST APPEARANCE)

Here is the relevant PR that probably contains the change that caused this glitch: https://github.com/dolphin-emu/dolphin/pull/8827

Is the issue present in the latest stable version?

Yes

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 https://forums.dolphin-emu.org/Thread-green-notice-development-thread-unofficial-dolphin-bisection-tool-for-finding-broken-builds and anyone who is building Dolphin on their own can use git bisect.)

5.0-12078

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: https://wiki.dolphin-emu.org/index.php?title=FifoPlayer

See attached screenshots.

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

AMD Ryzen 7 3700X 3.59Ghz
32 GB RAM
High Speed NVMe Drive
ASUS GeForce GTX 1080 STRIX 8GB
Windows 10 Pro

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

If you look closely at the pictures, such as 5.0-12076_NoBug, you'll see that at the back tip of the staff, it is blurred. This is correct. The blur effect starts taking place at that distance from the camera in that scene. This shows that the blur effect is active, but not blurring everything out, as it does in some of the image examples of the glitches.

I checked most other settings and was unable to find anything besides Anti-Alias settings that appeared to affect this issue.

Here are the specific things that happen with various settings and backends:

For version 5.0-12078 in both Vulkan and DirectX12:

• No visual glitches if Anti-Alias set to None
• For MSAA 2x and 4x, and SSAA 2x and 4x, visual glitches appear in a series of lines of blur effect, and in the wrong place.
• For MSAA 8x and SSAA 8x, the mask is in the wrong place or missing, but at least it is not broken up into pieces.

For version 5.0-12078 in OpenGL:

• No visual glitches if Anti-Alias set to None
• All other modes of MSAA or SSAA result in the screen-space rain effect disappearing entirely.

For version 5.0-12076, for all backends:

• No visual glitches for any Anti-Alias setting.