Thursday, January 19, 2012
After Effects The Foundry Camera Tracker Motion Tracking VideoCoPilot Footage into Scene Test
A quick before and after comparsion of inserting some stock footage (in this case flames from the Action Essentials 2 DVD from VideoCoPilot.net) into a shot recorded on a Canon T2i using The Foundry's 3D Camera Tracker in Adobe After Effects.
This is not the most ground-beaking or exciting video test I've ever made but I wanted to focus on making visual effects blend into a scene without intrusion. I wanted the FX to be subtle.
This is the type of shot most people wouldn't even notice and consdier that someone added effects to....its not a burning building or an attack by a giant monster! But it's stuff like this - the little tweaks and changes to a scene - that make me feel that anything is possible. A basic crappy shot taken in a kitchen can be altered to suit wathever needs i see fit. This time it's just a couple of flames dancing about on a hob...but the next time it could be literally anything!
HOW IT WAS DONE:
I tracked the scene using the Camera Tracker and then created a Null from on of the created 3D trackers.
I then created a plane, made it a 3D object and parented it to the Null. I adjusted the plane to be positioned correctly in the scen in 3D space.
I added a light which I set up to effect the lighting of the plane. I added a wiggle expression to make a flickering light effect on the plane.
Next I added some fire elements from the Action Essentials 2 DVD, made them 3D objects and parented them to the same Null in 3D space. I set the fire elements to always face the camera.
After this I added adjustements with curves and various blending modes to make the fire seem like a typical gas hob.
The flames cause a flickering light effect on the scene.....which may not be particularly obvious from the clip but it is a subtle effect that makes the stock element 'sit' in the scene better.
Stuff used: Adobe After Effects CS5, Action Essentials 2, Canon T2i, The Foundry Camera Tracker.