I'm just discovering VET and it's seams to be great for objects, but is it efficient to navigate in environment build with software as Image modeler?

Dear Cruci,

I'm not quite sure what you mean by "image modeler" but as far as creating environments in which you can navigate, you might want to check out the beta version of Adobe Atmosphere. Atmosphere incorporates VMP's renderer and allows you to import VET scenes. At the same time, you can navigate through Atmosphere's virtual worlds. ~Chris