libretro / libretro/ps2

Broken Heat Wave Effect in Crash Nitro Kart when using Parallel-GS

Open
#146 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

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

Description

Found this broken screen space effect in Crash Nitro Kart while using Parallel-GS. Supposed to create a warping heat wave effect around the torches, which wiggles around. In Parallel is just occludes through world geometry and shows the skybox instead. Works correctly with vulkan and software renderer:

Broken - Parallel-GS:
Image

Proper:

Image

Contributor guide

No contributing guide indexed for this repository

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 reproducing the heat wave effect in Crash Nitro Kart with Parallel-GS, then compare it with the working Vulkan and software-renderer results. Trace the Parallel-GS screen-space effect behavior around the torches; done means the effect warps correctly without occluding through world geometry or showing the skybox.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.