get KhronosGroup glTF-Sample-Models 2.0 IridescentDishWithOlives working

[coderextreme]

Describe the bug
Get this example using KHR extensions to glTF 2.0 working:

https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/IridescentDishWithOlives

To Reproduce
Check out web site and see example images and animation

Expected behavior
Something that will pass glTF conformance, if any.

Screenshots
See link

Desktop (please complete the following information):

• OS: Kubuntu 20.10
• Browser Chrome, Firefox
• Version (probably WebGL2 support)

Smartphone (please complete the following information):

• Device: iPhone 8 plus
• OS: iOS 14.7
• Browser Chrome, Safari
• Version (recent)
  Additional context
  Add any other context about the problem here.

[create3000]

This feature will be implemented in the next release. I'm going to provide more information on x3d-public when I release this feature, but can already show a preview 😊:

[create3000]

Have added a preview image above.

[coderextreme]

Nice! Now I have to figure out how to produce glTF for my math equation! We’ve already done it in OpenGL ES