Guys, I just found out about this. Have you ever hear about Three.js?
Acording to their site, "the aim of the project is to create a lightweight 3D engine with a very low level of complexity � in other words, for dummies. The engine can render using <canvas>, <svg> and WebGL."
I know Construct is not aimed to 3D development, but this site shows some interesting features, expecially for third party devs.
Hope you enjoy it =]