Continuing on from my last post.  Here we are going to walk through a couple of demos that use D3 style selections in THREE.js.  If you didn't read the first part of this series, I'm trying out the selection data structure for rending in WebGL with THREE.js.  We're using a ~600 line library I put together from the original D3 selection code that let's you test drive the idea.  It allows you to "select" into the scene graph the same way you would in the DOM and use the same syntax.