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Need for Speed Carbon OTC (USA) - graphics glitch when "overspeed" effect shows up #17522

Closed
4 of 5 tasks
DavidSilvadeSa opened this issue May 27, 2023 · 5 comments
Closed
4 of 5 tasks

Need for Speed Carbon OTC (USA) - graphics glitch when "overspeed" effect shows up #17522

DavidSilvadeSa opened this issue May 27, 2023 · 5 comments
Labels
GE emulation Backend-independent GPU issues
Milestone
v1.16.0

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@DavidSilvadeSa
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Game or games this happens in

ULUS-10114

What area of the game

I remember a period when this problem was actually happening.

and I remember that ❤️Henrik Rydgård❤️ identified this problem and soon after the problem was solved.

I downloaded the latest update v1.15.4-83-gc533187e2 and I noticed that there is a regression in NEED FOR SPEED CARBON OTC.

YouCut_20230527_191749039.mp4

What happens

the moment the car is too fast the game's graphics start to break.

when using NITRO the graphic problem gets better.

What should happen

So far the only problem I've encountered is the graphics crashing when the car is too fast.

GE frame capture

No response

Platform

Android

Mobile phone model or graphics card

POCO X3 PRO 8GB RAM

PPSSPP version affected

v1.15.4-83-gc533187e2

Last working version

No response

Graphics backend (3D API)

Vulkan

Checklist

  • Test in the latest git build in case it's already fixed.
  • Search for other reports of the same issue.
  • Try resetting settings or older versions and include if the issue is related.
  • Try changing graphics settings to determine if one causes the glitch (especially speed hacks or enhancements/replacements.)
  • Include logs or screenshots of issue.
@hrydgard hrydgard added this to the v1.16.0 milestone May 28, 2023
@hrydgard hrydgard added the GE emulation Backend-independent GPU issues label May 28, 2023
@hrydgard
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#15940 is the old issue, though a bit of a different visual glitch.

That already contains a nice couple of .ppdmp that we can use to debug. However, none of those reproduce this new bug, at least on PC. Could you grab another framedump? https://github.com/hrydgard/ppsspp/wiki/How-to-create-a-frame-dump

@hrydgard hrydgard changed the title GRAPHICS PROBLEM NEED FOR SPEED CARBON OTC (USA) Need for Speed Carbon OTC (USA) - graphics glitch when "overspeed" effect shows up May 29, 2023
@DavidSilvadeSa
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ULUS10114.zip

@BiZkViT96
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BiZkViT96 commented Jun 9, 2023 •
edited
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Not exclusive to Android and Carbon, on Windows Vulkan backend another NFS games has the same bug. Here is dump from Need for Speed Underground Rivals on Windows, Vulkan API, Intel UHD 770, driver v4382. OpenGL doesn't have this bug.

ULUS10007_00000
ULUS10007_0001.zip

Dump was captured on 1x. I raised resolution for the screenshot.

ppsspp-v1.15.4-133-g733b7b0de-windows-amd64

hrydgard added a commit that referenced this issue Jun 15, 2023
@hrydgard
Update the uvscale uniform a bit more conservatively on framebuffer c…
def09bf 
…hanges

Plus fixes a few minor oversights

Fixes #17581 and possibly #17522
@hrydgard hrydgard mentioned this issue Jun 15, 2023
Merged
@hrydgard
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I think this will have been fixed with #17582, please test when the builds with it are out.

@BiZkViT96
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Tested on dumps, it looks like the bug has been fixed.

ULUS10007_00000
ULUS10114_00000

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GE emulation Backend-independent GPU issues
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@hrydgard @DavidSilvadeSa @BiZkViT96