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Emulator Issues #10582

open

Graphic artifacts in Star Fox: Assault

Added by ryanebola16 about 7 years ago. Updated about 2 years ago.

Status:
Questionable
Priority:
Normal
Assignee:
-
% Done:

0%

Operating system:
N/A
Issue type:
Bug
Milestone:
Regression:
No
Relates to usability:
No
Relates to performance:
No
Easy:
No
Relates to maintainability:
No
Regression start:
Fixed in:

Description

Game Name?

Star Fox: Assault

Game ID? (right click the game in the game list, properties, info tab)

GF7E01

MD5 Hash? (right click the game in the game list, properties, info tab, MD5 Hash: Compute)

383bfb280420240d11f7ba993fa0b061

What's the problem? Describe what went wrong.

Graphic artifacts in Star Fox: Assault can be seen on the attached FIFO log. There should not be thin lines next to the green loading screen text.

What steps will reproduce the problem?

Run Star Fox: Assault and view the loading screens before the start screen.

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

5.0-5667

Is the issue present in the latest stable version?

Yes 5.0

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

Win 10 Pro x64
Intel Core i7-4702MQ CPU @2.20GHz
GeForce GT 750M
GeForce Game Ready Driver 387.92


Files

SFA visual.dff (1.61 MB) SFA visual.dff ryanebola16, 10/16/2017 07:10 AM
CaptureFDS.PNG (227 KB) CaptureFDS.PNG ryanebola16, 10/16/2017 07:10 AM
SFA visual 2.dff (1.55 MB) SFA visual 2.dff ryanebola16, 10/17/2017 07:22 AM
SFA 2.PNG (454 KB) SFA 2.PNG ryanebola16, 10/17/2017 07:22 AM
sfa_hardware_font_demo.png (866 KB) sfa_hardware_font_demo.png Anonymous, 04/09/2021 03:11 PM
SFA visual HW 1x.png (39.3 KB) SFA visual HW 1x.png pokechu22, 10/29/2022 07:04 AM
SFA visual HW 4x.png (379 KB) SFA visual HW 4x.png pokechu22, 10/29/2022 07:04 AM
SFA visual 2 HW 1x.png (77.8 KB) SFA visual 2 HW 1x.png pokechu22, 10/29/2022 07:04 AM
SFA visual 2 HW 4x.png (539 KB) SFA visual 2 HW 4x.png pokechu22, 10/29/2022 07:04 AM
Actions #1

Updated by JosJuice about 7 years ago

The issue goes away if you use native IR and no AA, so I'm not sure if there's much we can do...

Actions #2

Updated by JMC4789 about 7 years ago

  • Status changed from New to Questionable

The Vertex Rounding Hack didn't fix it so I'm 99% sure there's nothing we can do.

Actions #3

Updated by ryanebola16 about 7 years ago

Alright, perhaps this issue should remain open in case a future modification fixes the problem?

I also tested with:
1XIR + 2XMSAA - did not reproduce
1XIR + 2XSSAA - reproduced
2XIR + NO AA - reproduced
2xIR + 2XMSAA - reproduced
2XIR + 2XSSAA - reproduced

Can the title be updated to:
Graphic artifacts in Star Fox: Assault with non-native IR or SSAA

Actions #4

Updated by JosJuice about 7 years ago

  • Subject changed from Graphic artifacts in Star Fox: Assault to Graphic artifacts in Star Fox: Assault with non-native IR and/or anti-aliasing

Okay, but I changed the title a little from what you suggested, because I could reproduce it with 1x IR and 8x MSAA.

Actions #5

Updated by ryanebola16 about 7 years ago

Fine with me, thanks!

Actions #6

Updated by iwubcode about 7 years ago

I may be wrong, but I believe this is related to Issue #10401 which plagues a number of games (that I mention in that defect). This is an issue that even occurs at 1x (if you look really closely at 1x no AA / other filtering you can see green lines next to the text) and I believe it is due to some bug with our texture coordinates.

Updated by ryanebola16 about 7 years ago

I think iwubcode is right. I recorded a different FIFO log that has obvious artifacts near the words "High Score" with 1X IR, no AA, no AF. Can we update the title again?

Actions #8

Updated by JosJuice about 7 years ago

  • Subject changed from Graphic artifacts in Star Fox: Assault with non-native IR and/or anti-aliasing to Graphic artifacts in Star Fox: Assault
Actions #9

Updated by JMC4789 over 6 years ago

Turns out some games actually have artifacts at 1x IR when investigating this more closely... it's just hard to see. Unfortunately it got even more annoying when console had these same artifacts in some cases...

Actions #10

Updated by ryanebola16 over 6 years ago

In Star Fox:Assault I haven't noticed any graphic artifacts on console with my standard definition TV.

Actions #11

Updated by JMC4789 almost 6 years ago

  • Status changed from Questionable to Accepted

Yeah, Dolphin has some pixel accuracy issues, I guess this can be called accepted until there's further testing done.

Actions #12

Updated by ZephyrSurfer almost 4 years ago

The problem starts with native resolution here. The problem exists before this commit if a higher internal resolution is used though. There are a few issues where the same commits affect the various issues. Maybe this would be a case to open a new issue and have the various instances of this bug all duplicates of it?

Issue starts in 4.0-1474 for 1 x IR -> https://dolphin-emu.org/download/dev/25f5598e31d5ce5dca8d1b03888a9205b616280e/

Actions #13

Updated by Anonymous over 3 years ago

ryanebola16 wrote:

I think iwubcode is right. I recorded a different FIFO log that has obvious artifacts near the words "High Score" with 1X IR, no AA, no AF. Can we update the title again?

I suspect that the artifacts in that file select screen (e.g. "High Score" in the screenshot SFA 2.PNG) are due to Dolphin using different fonts from those in the actual GameCube BIOS (See --> https://wiki.dolphin-emu.org/index.php?title=Star_Fox:_Assault#Improper_GameCube_Font).

I've attached a screenshot from a YouTube longplay (https://www.youtube.com/watch?v=uuH-zUZVMec) that was recorded off original hardware, showing the font differences. The IPL font is a bit thicker and more spaced out than the Dolphin one. Issue #8362 suggests that the width differences between the two fonts can cause graphical issues, which could explain why 1xIR still causes problems in that menu.

The loading screen fonts in both Dolphin and hardware capture are seemingly indistinguishable. That one definitely seems like a texture coordinate issue. It is consistently reproducible on my end with 5.0-13963 when anti-aliasing is enabled and/or a non-native IR is used. If someone can verify using a dumped GameCube BIOS that 1 x IR doesn't leave text artifacts on that file select screen then perhaps the Subject text should be reverted to clarify.

Updated by pokechu22 about 2 years ago

Using the hardware fifoplayer on a real wii, I get similar lines when I zoom in (but not at native resolution).

Actions #15

Updated by JMC4789 about 2 years ago

I can see the lines on the 1x HW fifoplayer images. It looks like this is a working as intended to me.

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