obsproject / obsproject/obs-studio

[macOS] macOS Screen Capture + Color Correction Effect Filter causes unintended color changes

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Dominant language
C
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Description

Operating System Info

macOS 13

Other OS

No response

OBS Studio Version

30.1.0

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/BYUEWAOWECPmLYvU

OBS Studio Crash Log URL

No response

Expected Behavior

Nothing will happen if you apply color correction filter with no value changes.

Current Behavior

Some regions turn black(darker).

These are two frames in a single video record of my desktop.
The first one is without any effect filters and the second one is with color collection filter but no value changes.

DesktopRecord_Without_ColorCollectionFilter

DesktopRecord_With_ColorCollectionFilter

These things don't happen in deprecated Display Capture or in deprecated Window Capture.

Steps to Reproduce
  1. Capture the desktop by using macOS Screen Capture with the method Display Capture.
  2. Apply the color correction filter with no value changes.
Anything else we should know?

Same things happen in the other methods of macOS Screen Capture.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the OBS Studio log at https://obsproject.com/logs/BYUEWAOWECPmLYvU and reproducing the issue with macOS Screen Capture using each listed capture method. Compare recordings with and without the unchanged Color Correction filter; done means applying that filter without changing values no longer causes regions to become darker or black.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, macos
Domain
computer-graphics, desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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