GLTFLoader: Some glTF models cannot be cloned

Description of the problem

GLTF2 models that are clones do not displayed correctly. This is for a number of reasons

  • the onBeforeRender callback is not copied
  • GLTFShader is not cloned across
  • SkinnedModel skeleton is reinitialised to 0 bones and the source skinnedmodel skeleton is not cloned

Three.js version
  • [X ] Dev
  • r85
  • All of them
  • Chrome
  • Firefox
  • Internet Explorer
  • All of them
  • Windows
  • macOS
  • Linux
  • Android
  • iOS
Hardware Requirements (graphics card, VR Device, …)

Author: Fantashit

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