[Feature request] Ground Projected Skybox

[mj321]

I'd like to see support for the "ground projected skybox" from three.js in model-viewer

https://threejs.org/examples/webgl_materials_envmaps_groundprojected.html
https://github.com/mrdoob/three.js/blob/master/examples/webgl_materials_envmaps_groundprojected.html

It would open up new use cases.

[elalish]

Agreed, that could be cool. Interested in trying a PR? I'd be happy to review and help with any questions.

[mj321]

Agreed, that could be cool. Interested in trying a PR? I'd be happy to review and help with any questions.

TBH, i wouldn't even know where to start :(

[phreak]

Thinking further: if that ground projection would also be able to show animated graphics (for example seamless WEBPs), that could open a whole. world to the model viewer.

[elalish]

Fixed by #4604