Dragon’s First Flight
March 3, 2012 3 Comments
This is the first relatively successful track I’ve managed to create with the new motion tracking features in Blender 2.62. I wasn’t really concentrating on the animation too much, I just gave the little dragon guy a bit of life to see how well he would sit among some live footage. I’m still trying to get the hang of it, I haven’t done much 3d motion tracking in the past (plenty of 2d though). This footage I just shot on my iPhone at my desk, so the compression and motion blur on clip isn’t overly conducive to tracking but with a bit of fiddling and tweaking by hand I eventually got a decent timeline. I had downloaded various clips from the internet, if you do a search for ‘free tracking clips’ you’ll find a few places to download them from, but I was having trying to find sensor sizes and focal length for these particular clips. I then decided to shoot some footage with my phone since I already knew these details and finally got this result. It’s far from perfect but it’s a good start with a Blender feature which I can see fast becoming a powerful tool in my arsenal of vfx tools.
About Alan Perry
Alan, that was class! … Would love to see more of that.
What focal length and lens width did you use? I’ve tried many of the socalled measurements for the i4 and get very inaccurate results even with a .2 solve.
I found this post over at BlenderArtists.org where they’d started collecting this info,
http://blenderartists.org/forum/showthread.php?254496-Tracking-Camera-Data-info-for-iPhone-iPad-devices
I used those settings for the IRover in the Garden track too ( http://iluvpixels.wordpress.com/2012/09/07/irover-in-the-garden/ ) which turned out great. Hope that helps. Let me know how you get on.