The DoF isn't working out for me, 'cause there's some weird black shading on the edges of the barrel. Doesn't look natural at all.
Other than that, rock on. It looks awesome; can't wait to see it textured.
I'm still confused.
I've never gotten any javascript errors or warnings, and I haven't noticed anything funny with my machine.
What, exactly, does this script do? Is it actually malicious, or does it just create bugs?