Emulator

Does this happen when Graphics -> Advanced -> Manual Texture Sampling is enabled?

yoshi200213 wrote:

Game Name?

[Mario Power Tennis]

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

[GOMP01]

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

[0f09da2b8e32bcb352bfb727fb1ea725]

What's the problem? Describe what went wrong.

[In the video game Mario Power Tennis Yoshi's tummy texture has green lines that do not happen in real Gamecube]

What steps will reproduce the problem?

[1. start the game. 2. Skip the intro. 3. Select tournament mode. 4. see the problem]

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

[5.0-19980]

Is the issue present in the latest stable version?

[No]

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.)

[5.0-19980]

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

[Attach any fifologs if possible, write a description of fifologs and screenshots here to assist people unfamiliar with the game.]

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

[PC specs here]

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

[Anything else here]

Using freelook it seems like the problem is still present at higher resolutions, but does seem to be a bit more hidden.

The relevant part of yoshi's tummy is the center, object 67 in the attached fifolog, which has a unique texture (different from the rest of yoshi's body and from the outside of yoshi's tummy, which also both have their own textures). That texture has a pattern to it, and that pattern is used on the back, but would also apply to the front, except the UV coordinates in the model leave it inside of the white region. I guess it's right at the border.

I'll test on the hardware fifoplayer to see what it looks like on real hardware when I have time. My guess is that this happens on real hardware though.