jMonkeyEngine / jMonkeyEngine/jmonkeyengine

jme3-plugins loads SimpleSparseAccessor incorrectly

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defect
Dominant language
Java
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Merged PRs (30d)
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Description

I noticed a defect in GltfLoader while developing the MonkeyWrench library.

The test data is SimpleSparseAccessor from Khronos's glTF sample models.

Here's how it looks in CompareLoaders when "SimpleSparseAccessor/glTF/SimpleSparseAccessor.gltf" is loaded using jme3-plugins:

SimpleSparseAccessor

I haven't identified the root cause of this bug. However, since MonkeyWrench passes this same test, it's probably solvable.

Contributor guide

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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 defect with SimpleSparseAccessor/glTF/SimpleSparseAccessor.gltf from the Khronos glTF sample models, using CompareLoaders. Read the GltfLoader path involved in loading sparse accessors and compare jme3-plugins with MonkeyWrench, which passes this test. Done means the sample loads correctly in jme3-plugins.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
computer-graphics, game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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