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View Full Version : Some info on compositing

pizovic
05-10-2007, 06:59 PM
Hello guys I am doing a promo for wary respectable music video company, what I want to achieve is their logo which I will model in 3d and have it placed in the live shoot of a bathroom basically logo will raise up from the bathroom floor and levitate in mid air and changing colors camera will not move at all maybe wary small move with a tripod, now do I have to prepare the bathroom for tracking do I need to place tracking points on the wall or the floor, I have full aces to Softimage xsi which I am good at boujou matchmover pro nuke and after effects. I am only good with xsi. This is what I am trying to achieve
http://www.english-pockett.com/ as you can se in the video. Any info will help me guys I will not have camera panning or going behind objects it will be just one shoot. when it comes to light do i have to shoot hdr i am going for that real look where object one with its sourandings.

thanks guys
AlexLD
05-11-2007, 07:44 AM
If you're not moving the camera then no need for tracking markers. The BG isn't moving so there's nothing to track. Even slight pan/tilt can later just be hand matched or tracked in 2D during the final comp.

You need to take note of the camera settings so you can recreate the same field-of-view matching the perspective you shoot for the live action. Take measurements of how high your camera is off the ground and maybe things like distance from camera to wall etc. That way you can rough this out with some basic polygons in 3D to confirm you have the perspective match. Then create your logo, float it inside this imaginary scene and the model/animation part is done.

Now lighting you can either recreate with area lights etc, or take a HDRI sphere shot of the bathroom using a reflective sphere. Google HDRI and you'll find heaps of articles on how people do it (some even using christmas balls).

You can then use that to light your scene in one hit.

Then just comp it.
pizovic
05-12-2007, 12:13 AM
thanks man
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