Effect Question

Anyone know how they did that 360 degree rotation effect in the trailer for refraction? It looks like the camera flys around the rider who is frozen in the air. Its towards the end if you haven't seen it.

http://www.wakefilms.com/

umm most likely green screen or some type of CGI. Basicly expensive software, experienced lighting (green screen), and putting in time for the now how.

Travis is wrong, it's done using clay animation.

btw - Travis good meeting you at CIE SR!

I think it was done with 2 or more cameras, a computer, and a bunch of linear algebra.

A point in an image corresponds to a visual ray in the real world. Get the same point on the rider from 2 points of view and know where your cameras are and you now have a point in the world. Do this a bunch of times and you get a 3d model of the scene which you can render from any point of view.

This requires finding corresponding points on the rider in the various images. This could be done manually by clicking in the images, or automatically with some fancy computer vision techniques(SIFT and RANSAC to name a few).

Sorry for the level of technicality.

-Philip

Just a lil tech

FU - how could of i missed that? Clay animation sounds about right. It was also cool meeting you finally, good luck with your project.