Gary, in your unintended absence, I have met my own 'mind-blowing' experience with https://doc.babylonjs.com.

The effort put into the tutorials is brilliant and the ability to alter and tweak to destruction, brilliant.
A small example: https://playground.babylonjs.com/#7G0IQW.

Meshes can be imported from Blend

I've managed getting some of them to run in a Xara website but I am still experimenting...

Acorn