First of all, I would like to say that the IRIS plugin is a great feature!
I am wondering if you are thinking of developing a similar plugin for Grasshopper. Right now, communication with WebGL is still rather complicated.
Kind regards,
Jouri
You might want to check out this example which uses Rhino.Compute to solve a gh definition and render it on the client with three.js.
NOTE: You’ll need to get a token with your rhino account at https://rhino3d.com/compute/login
There is also a new plugin called Triceratops which adds some GH components to output three.js compatible data.