3D Stereoscopics

Here is an interesting article(I cannot remember how I found it, maybe on those forums). It has a paragraph on 3D too.

http://magazine.creativecow.net/article/the-joy-of-filmmaking

Oh very nice. That really illustrates a lot of the artistic platform that is 3D. it adds a level of complexity that requires composing as you go. It's not complicated, it's just a new way of thinking about film making.

Here is an example of setting convergence in post using After Effects. Convergence is set at the wooden wall. As the image slowly zooms, the convergence adjusts slightly.Civil War Cannon

Are these 2 still images converted to 3D stereoscopic clip?
I imported preview clip into AE, checked with active shutter glasses on 3D monitor and can't find any movement in the clip (even smallest tree branch did not move at all). Also: 2 wheels and central part of the cannon have stereoscopic window violation when you set convergence on the wooden wall. It looked very strange when half of the wheels appeared somewhere before the screen.
Zygis

View the chain on the side of the cannon. You should see some movement. Well, on second thought, the proof that pond5 makes might be too small to see that. I welcome any and all comments on my work. I can't get better if I assume my stuff is great. Yes you are correct about the window violation. Maybe that explains why the curator set the price so low. It is what it is. Please, feel free to look at my other works and tell me where they fail so that I can know what to improve?

Perhaps this is a better example of setting the convergience in post. Lincoln Birthplace I'd love to get some feedback on this one.

The same problem as was with the cannon: the bottom and top parts of the tree in the front of this clip have 3d stereoscopic window violations.
I have few questions:
- what camera(s) you use when making stereoscopic video clips?
- what software you use to compile final clip?
- what viewer / glasses you use to check the problems?
The best viewer I found is the http://www.3dtv.at/Products/Player/Index_en.aspx. With that player you can watch clip / movie in any possible 3D stereoscopic format.
In Lincoln Birthplace clip even without glasses (but viewing Anaglyph Red/Cyan format) it is possible to see the blue colored parts on left side of the tree what means that tree is on front of the window.
Few advices to check 3D stereoscopic window violations:
- maximize a screen
- move the mouse pointer around the screen - the moving mouse pointer IS the 3D stereoscopic window screen
- wear your glasses and moving mouse pointer you'll notice where that pointer goes behind or in front of any object in the window.
Zygis

But, just how important are the window violations? When I compose I try to imitate what I have seen on the big screen. Window violations seem to be less important on the top and bottom of the screen and a little more important on the left and right of the screen. I have and use AE. The camera's are listed in each individual clip. I have Sony DSC HX9V and a couple Canon G5 for time lapse. Thanks for the tip on the player.

In my opinion there can't be any single point around the screen where 3D stereoscopic window is violated - person viewing that clip will have a headache in such case. To extend some part (e.g. cannon tube) in the front of the screen is OK - and this is shown on the most 3D Demo screens. Also, if object is isolated (shooting on green screen) then it can 'fly' very far in front of the screen, for example such clip:
.
Zygis

Probably good to be mindful of it. I'll certainly be more aware of it. But, to hold it as an absolute? It seems to be a rule that professional cinematographers don’t mind breaking. And they are the ones most likely to be in litigation if it causes a problem. A good ‘for instance’ would be the (movie) John Carters shots over the shoulder. They set convergence on the face while the back of the person in the foreground is in window violation. And, in my theatre there is an introductory cinematic icon in which a desert plain extends from the horizon through the screen and is trimmed via window violation at the bottom of the screen. These are just a few examples. So I’m unclear as to how much importance to place on it right now.