Very interesting use for VidBlaster
These effects will be done in post production, but as we need to place the actor relative to the scene, we use VidBlaster to do a studio rough mix. This way the director can see the effect real-time before we shoot to tape.
VidBlaster provides us with a very quick way of actually playing the scene into the shot from tape over firewire, have the actor on camera also over firewire and then line everything up nicely.
If you are in video production and have not looked at VidBlaster (http://www.vidblaster.com ) you have to give it a try.
