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5D 3D

PRE-PRODUCTION TESTING

The big hurdle that we needed to get over for these MNet commercials was to establish what the parameters were that would make for successful 3D.

The CG foreground elements were to be provided by animation experts BlackGinger and Director Ree Treweek (Shy the Sun). VFX Supervisor Hilton Trevis (BlackGinger) and Director Jannes Hendrickz (Shy the Sun) supervised the 3D stereo shoot of the backgrounds, and we allocated a full week of testing before shooting commenced.

The two parameters that we had to focus most carefully on were interocular distance and convergence. We had to determine where we wanted the pieces to appear, whether in front of the zero plane using negative parallax, or if we wanted them to go behind the screen.

This was more complicated than usual, because we were working on 14:1 scale sets. So, traditional thinking is that about 65mm is normal interocular distance, the distance between adult eyes. Divide that by 14, and it comes to about 4.5 mm IOD for the shoot. In the end, we were shooting IODs in the 2 to 3 mm range, because at 4 to 4.5, the stereoscopic effect was actually a little bit too much.

We had a number of people and all the gear in the studio to check this out as we ran the tests. We were able to play the footage after each set of shots, and see what everybody thought. As their brains tried to resolve it, some people found it uncomfortable. Some couldn't even watch.

I think that it is important to understand that it takes care to create 3D that works well.

You've got to be conservative, because 3D can be really good, but get it wrong and it can be very bad. The test phase was invaluable. We had to change the variables to get the correct interocular distances and peak convergences for each shot. We experimented until we knew the parameters to run for the shoot, and then we started laying down the actual footage.




Comments

Re: 5D 3D
by lony anderson
Amazing. I love hearing about how you guys tackled the various issues.

I work at Head Gear Animation in Toronto. We did a stereo stop motion spot back in April. There were just two of us running the show on a Moco Cooper using a Windows '95 box and a Nikon D300. Needless to say we had to improvise a TON.

I can really relate to a lot of what you guys talked about, and the final product is fantastic. Congratulations!

Here's a link to the spot we did (in anaglyph):
http://www.headgearanimation.com/work/milk_dots_3d

Ivan
Re: 5D 3D
by Luis Cosme
wow! Amazing work! Thanks for the great article.
Re: 5D 3D
by Peter Constan-Tatos
Thank you all for your positive feedback. Marc, the clips have been uploaded to Creative COW's showreel section, but they are also on Youtube - just search for reflexmotioncontrol.
Re: 5D 3D
by Chris Rush
AhhHaaHaa.. the 5d on the end of that humongous robot arm - talk about standing on the shoulders of giants. I want my Goliath robot arm! NOW!

Re: 5D 3D
by Marc Lougee
Great article!
After many years animating stop-motion anthropomorphic products, I'd thought I'd seen enough of motion control to sate my appetite. But lo and behold, the work described here so brilliantly got my interest in mo-con fired up, once again- and in stereoscopic 3D, no less. Love the approach, and thanks for the breakdown of the process. Looking forward to seeing clips of this! Cheers, M.
Re: 5D 3D
by Tim Wilson
Even though I'm the Editor-in-Chief, as I learned more about the story, my jaw kept dropping. This team of folks did an amazing job.

I'd love to see this in 3D, too! But even in 2D, remarkable, remarkable stuff.

Tim Wilson
Associate Publisher, Editor-in-Chief
Creative COW Magazine

My Blog: "Is this thing on? Oh it's on!"

Don't forget to rate your favorite posts!
+1
Re: 5D 3D
by Jackolina Horjus
It was great. Especially as the DOP was my Son. Proud Mother
Re: 5D 3D
by Campbell Stuart-Watson
Really interesting. Probably the first stop motion, motion control shoot since the Plascon dolls commercial. The 3D elements open up a whole new set of complexities. Thanks for the informative article
Re: 5D 3D
by Mark Keeler
What an awesome article; while I work in photography and integrate with AE, I find little interest in the usual "how to make glass shatter" tutorials...reading about the cinematography and the bigger picture and the thinking that goes into a production gives me a much broader educational experience.

Excellent read ;)
+1


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