libretro / libretro/ps2

[Bug] ICO rendering issues with parallel-gs at PAL60

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#71 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
Stars
85
Forks
26
Avg merge
6h 43m
Merged PRs (30d)
6

Description

If you're playing ICO (PAL version), there's an option at the start to choose between 50Hz or 60Hz refresh rate. If you choose the latter, parallel-gs can't properly render the game, leaving a duplicate section of the window on the bottom the screen. The issue does not| happen with a different renderer, like vulkan, for example.

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce ICO in the PAL version by selecting 60Hz and using parallel-gs, then compare the result with the Vulkan renderer. Inspect the parallel-gs rendering path for the duplicated section at the bottom of the window; done means the game renders correctly at PAL60 without that duplicate section.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics, game-dev
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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