Hey all,
I’m doing a comp where I’m tracking towers into a moving BG plate. Tracked it in fusion’s Camera Tracker.
I’ve included pics below, but essentially the original was hazy and the sky was a complete white-out. I’m replacing the sky, but to make it work, I need a shadow on the mountains in the distance (It’s a WIP, I know I need to adjust the other mountains too).
So if I just duplicate the BG plate and mask out everything but the top of the mountains and apply a colour correction it doesn’t work because the footage moves while the mask stays put - dancing shadows! Not the desired result!
Okay, so I create an adjustment layer and use the duplicate I made earlier as a track matte. This way the alpha from the background cuts the adjustment layer should cut the adjustment layer and cause it to affect only the plate, not the sky. Then I can parent the adjustment layer (but not it’s track matte) to a null derived from one of the tracks from camera tracker. Then all I have to do is create a mask and it should be sweet!
Here’s the thing;
If the adjustment layer is set up as a 2D layer, sure, it doesn’t affect the sky, but it won’t track with the motion either. I guess a 2D layer can’t track a 3D point. Fair enough.
So I turn it into a 3D layer. Great! so now it tracks with the motion perfectly, but now the track matte doesn’t work!
Here’s some pretty pictures that illustrate what I’m on about. Thanks for any help guys!
