secondlife / secondlife/viewer

Broken lighting under Midday environment

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bug stale
Dominant language
C++
Stars
299
Forks
146
Avg merge
1d 9h
Merged PRs (30d)
88

Description

Repro:

  1. Go to: http://maps.secondlife.com/secondlife/Fenfarg/4/124/36

  2. Wait for things to fully rezz around you

  3. Rotate camera around your avatar, to make sure everything around you is rezzed

  4. Change environment setting to Midday (the new PBR version)

  5. Stand around, and rotate the camera around for 30s or so.

  6. Things will go weird black and white, (See Attached Image)

  7. Change to any other environment setting like Midday Legacy

  8. Change back to Midday

  9. After 30s or so, everything will go dark again.

Issue seems to be limited to this specific area. But I have seen similar things happen once in a while in other places around SL, this one however seems to be 100% reproducible.

Reproduced on both Official viewer and Latest Firestorm.

https://secondlife.canny.io/admin/board/bug-reports/p/broken-lighting-under-midday-environment

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 reproducing the issue at the Fenfarg location using the Midday environment, following the listed camera rotation and environment-switch steps. Compare the official viewer's behavior with Midday Legacy and determine which rendering or environment path causes the scene to become black and white or dark; done means the reproducible lighting failure no longer occurs.

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
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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