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Emulator Issues #12254

Widescreen Heuristic Mega-Issue

Added by JMC4789 4 months ago. Updated 4 months ago.

Status:
Accepted
Priority:
Normal
Assignee:
Billiard26
% 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?

Metal Arms: Glitch in the System
Resident Evil
Wario World
Yugioh Falsebound Kingdom
Need for Speed Most Wanted
Metroid Prime 2

Likely Others to be added.

What's the problem? Describe what went wrong.

While playing these games, either they will get stuck in the wrong aspect ratio when using "auto" or they will jump between aspect ratios erratically.

What steps will reproduce the problem?

I will link the individual issues, but most of them will happen right away while a few others are specific to various actions. For instance, Metroid Prime 2's issues only occur when certain effects are on screen, like dust from a enemy coming out of the ground.

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

The issue is present in 5.0-12581

Is the issue present in the latest stable version?

Some are, some aren't as the heuristic has changed many times since 5.0.

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

We'll probably be moving/attaching fifologs/screenshots as games are added to this issue.

Pokémon XD first room 10 frames.7z (1.08 MB) Pokémon XD first room 10 frames.7z JosJuice, 09/12/2020 10:29 AM

Related issues

Has duplicate Emulator - Emulator Issues #12237: Resident Evil (NTSC-U) stretches image to wide screen in Auto mode.Duplicate

Has duplicate Emulator - Emulator Issues #12202: PR #8584 widescreen heuristic issuesDuplicate

Has duplicate Emulator - Emulator Issues #12057: Metroid Prime Changes screen mode when Wave Beam hits a wallDuplicate

Has duplicate Emulator - Emulator Issues #12090: Metal Arms: Glitch in the System Widescreen Hack Not ApplyingDuplicate

Has duplicate Emulator - Emulator Issues #9842: Dolphin doesn't autodetect the 16:9 aspect ratio in NFS: Most Wanted (USA)Duplicate

History

#1 Updated by JMC4789 4 months ago

  • Has duplicate Emulator Issues #12237: Resident Evil (NTSC-U) stretches image to wide screen in Auto mode. added

#2 Updated by JMC4789 4 months ago

#3 Updated by JMC4789 4 months ago

#4 Updated by JMC4789 4 months ago

#5 Updated by JMC4789 4 months ago

  • Has duplicate Emulator Issues #9842: Dolphin doesn't autodetect the 16:9 aspect ratio in NFS: Most Wanted (USA) added

#6 Updated by JMC4789 4 months ago

  • Assignee set to Billiard26
  • Status changed from New to Accepted

We may need to set per-game "bounds" according to some notes on other issues due to the F-Zero GX/Metal Arms conundrum.

#7 Updated by JosJuice 4 months ago

You can get Dolphin to incorrectly think Pokémon XD is 16:9 by moving around in the first overworld room. I've attached a FIFO log which contains both a segment detected as 16:9 and a segment detected as 4:3. Tested in 5.0-12579.

#8 Updated by ryanebola16 4 months ago

Copying this here in case it's related. Originally posted in #7143:

Super Monkey Ball (GMBE8P) Advanced Stage 10 seems to randomly stretch the screen then quickly return it to the proper size (widescreen mode detection issue?) on 5.0-12369. Dual core only, single core does not have this problem. Let me know if I should file a separate issue for this.

#9 Updated by JMC4789 4 months ago

That one should either be part of this issue or the dualcore issue. Putting it here is fine.

#10 Updated by Billiard26 4 months ago

Copying my comment from #12090:

I believe the widescreen heuristic is not fixable without adding per-game settings.

Metal Arms NON-widescreen aspect ratio is 1.25.
F-Zero's widescreen aspect ratio is 1.244.

Certain games have an unusual idea of what "widescreen" is so we can't fix them all with one magic number.

#11 Updated by teconmoon 4 months ago

Just wanted to drop a quick line that Mario Party 4 is affected by this bug.

#12 Updated by danileon95 4 months ago

Metal Gear Solid: Twin Snakes is affected, it's always detected as 4:3 even when using the 16:9 Gecko code. The code works fine, but you have to force 16:9 in the graphics option, Dolphin autodetects it as 4:3.

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