jMonkeyEngine / jMonkeyEngine/jmonkeyengine

implement the EXT_lights_image_based glTF extension

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enhancement
Dominant language
Java
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Description

Adobe and Microsoft have specified an extension to glTF for cubemap-based lighting.

Currently, attempting to load such assets causes warnings:

Mar 13, 2024 10:59:16 PM com.jme3.scene.plugins.gltf.CustomContentManager readExtension
WARNING: Could not find loader for extension EXT_lights_image_based

Since the extension may be widely used in the future, it would be nice if jme3-plugins fully supported it.

For examples, see EnvironmentTest in the glTF-Sample-Assets repo at GitHub.

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 with the jme3-plugins glTF loading path and the CustomContentManager warning shown in the issue. Read the EXT_lights_image_based specification and inspect the EnvironmentTest glTF-IBL assets; done means those assets load with the extension supported rather than producing an unknown-extension warning.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
computer-graphics, game-dev
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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