[Front End] - Add ring for Saturn and Uranus

syt123450 / Three.js-Solar-Exploration

:rocket: Exploration the solar system created by Three.js

http://solar-exploration.com/

MIT License

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Closed zchholmes closed 7 years ago

zchholmes commented 7 years ago

As a developer, I want to add the ring for the Planet Saturn and Uranus.

Definition of done: Create a demo and add it to proper SceneControllers

zchholmes commented 7 years ago

Ring structure is done. The issue left is the default texture loader is loading ring map as plain picture instead of ring-shape picture. Find the alternative way is to include the extended library from: https://github.com/jeromeetienne/threex.planets The function, THREEx.Planets._RingGeometry (https://raw.githubusercontent.com/jeromeetienne/threex.planets/master/threex.planets.js), can solve the issue.

zchholmes commented 7 years ago

A prototype is created with incorrect texture of ring picture.
The case is decided to be frozen for now as it is not clear with the explanation from different versions of Three.js library. There is limited resources to resolve the correct texture for now.
- The critical issue is it's too hard to generate a proper uv map
  - Invalid to use the existed open codes from old version
  - Hard to alternate the three.js source code, as it covers more topics.