with regard to your question regarding skybox support. While skyboxes are not officially supported in HOOPS Communicator, it is possible in perspective projection mode to emulate a skybox by using a textured sphere far away from the origin. See below for a sandbox example:
I mean, the markup we create usually exist in the form of div. I want to convert div into canvas, and the markup can be aggregated.Aggregation means that markup can be merged or expanded by scaling the model.The effect is the same as in the link below
I think you will have to write this functionality largely on your own. In general to convert a div to a canvas element you can use the library below, which is also used in HOOPS Communicator (and the spritemanager class I mentioned in my previous reply) for that purpose:
From what I can tell when looking at the link you provided, the markup is grouped together and styled differently based on the distance of the camera and some other proprietary heuristics. We don’t offer that functionality and you would have to implement this yourself on top of your existing markup logic, which I think should be fairy straightforward.
It is an interesting feature, so its possible this could into the spritemanager class at some point but there are no current plans.