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Stereo Picture, 3D-View: Open Water Logo _X

Work In Progress (none) posted on Apr 27, 2007
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Description


I did some of these "stereo-pictures" in former times with two identical digital cameras, mounted together at a distance of 10 inches and released simultaneously. To experience the full three dimensional view, look at the pictures "crosseyed". Which means, you have to look at the left picture with your right eye, and at the right picture with your left eye. As a result, a third clear and sharp picture establishes in between the two, in which you see the scenery in full depth. The two outside left and right pictures remain blurred, don't worry and simply ignore and don't look at them; concentrate on the one in the middle; don't bank your head, or else you will drop out of the picture immediately; don't be afraid to try crosseyed view, it's quite natural. The eye position is the same as if you focus a very close object, so it's really fairly natural and nothing dangerous for your eyes. Why CROSSEYED? Well, there exists another technique where you look at the pictures in a PARALLEL view. But for most people the parallel technique seems to be more difficult to learn, and it has some restrictions on width. As you cannot view to the outside (look left with left eye and right with right eye), the parallel (infinite) focus is the maximum available. Thus, the width of the two pictures cannot be wider than the distance between your left and right eye (about 3 inches, or so). These restrictions are not valid for the CROSSEYED view, because you CAN look to the left with your right eye and to the right with your left eye, at least with some training. It's the same movement for your eyes, when you try to focus on your nose tip... Here's how to do stereo pictures yourself: Open your favourite scene and adjust the picture dimensions for rendering. I prefer 1024 height and 640 width for my 1280x1024 screen. Render the image and name it something with _L in it, to indicate that it is the rendering of the LEFT eye. Now shift your camera slightly to the right, about 10 inches or so. IMPORTANT: don't change anything else in the scene or camera! Especially do not move the camera forward or backward and don't lift or lower its height! Only the little shift to the right. Render again and name the picture something with an _R in it, to indicate it is the view of the right eye. Now open your favourite picture editor program, I use Paintshop 9 Pro, mostly any other will do as well. I create a new (empty) image of the size 1280x1024, then load the two renderings as seperate layers. Adjust the rendering named _R on the left side, and the rendering _L on the right side, tightly together, with no gap between them (see my picture above). That was it. Simple, isn't it? I suggest to name this final composed picture something with an _X in it, to indicate that it's for "crossview", and to serve as search expression, so people could search for stereo-pix directly via "_X" in the filename. Some more hints: Postwork has to be done simultaneously on both pictures... Best is to adjust them side by side in their final position first. Then work on both picture sides, and crossview them from time to time, to check if there is any incongruency. Try long accessories like a sword, laser beam, gun or arrow pointing directly towards or away from the viewer, fantastic effects will occur. I hope you enjoy trying it out on your own. I'd be glad to hear about it or discuss via site mail. Or if there are any questions or suggestions, please tell me, in german, french or english! MaG

Comments (1)


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delbeke

12:45PM | Fri, 27 April 2007

Spiffy and creative!


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