If you're worried about XHRs causing pauses in the scene/editor rendering, consider moving all your XHRs to Web Workers and just postMessage the JSON back. Wouldn't be more than a few lines of code to shove all the necessary XHRs to a Worker to add some smooth lazy loading.
If you're worried about XHRs causing pauses in the scene/editor rendering, consider moving all your XHRs to Web Workers and just
postMessage
the JSON back. Wouldn't be more than a few lines of code to shove all the necessary XHRs to a Worker to add some smooth lazy loading.(Filed because of #313.)