Are most stereo images now for cross-eyed viewing? I thought they were for wall-eyed viewing.
Perhaps a warning would be helpful for people starting out at looking at published stereoviews. If you look at a stereoview constructed for wall-eyed viewing but look at it with crossed eyes, you'll change the handedness of the object. And if you're showing surfaces, they get turned inside-out (or something like it). I usually get a headache soon after mixing modes like this and only know that the surfaces are messed up. Also, in answer to one of Jeorge's questions, the two images in stereoviews differ by a small rotation about a vertical axis. The two images are what each of your eyes would see if looking at a single object. Because your eyes are separated by about 2.25 inches (I'm a stubborn non-metrical American...), the left- and right-eye views differ slightly. The amount also depends on how close your eyes are supposed to be from the object. I think long ago things were worked out so the rotation is 6 degrees and that corresponds to the viewer-object distance being about 30 inches. If you place the left eye view on the left, you need to look at the two images in wall-eyed mode. If you place the left eye view on the right, you need to cross your eyes to generate the stereo image. For those of us who can view stereoimages without the assistance of glasses or computers, life is good. I recommend developing the ability to do that. Ron On Sun, 18 Jan 2015, Jim Fairman wrote:
You can create stereo images for publications in pymol: http://www.pymolwiki.org/index.php/Stereo_ray Adding labels and getting them to "float" at the correct depth within the image can be tricky. As for visualizing the stereo images, you can either practice alot and get good at cross eyed stereo viewing, or you can buy a pair of glasses to assist you in seeing the 3d effect. If you google "cross eyed stereo glasses", you will get many options to purchase. Old chemistry texts used to come with a pair, but I'm not sure that students actually purchase textbooks anymore. On Sat, Jan 17, 2015 at 23:50 PM, jeorgemarley thomas <[email protected]> wrote: Dear all, First of all sorry to put this off topic and silly question on bb. Can anybody suggest me, how to create a stereo image and how it is different from the normal. How can I visualize it, if anybody has answer for this please suggest me its significance in analysis. Thank you very much in advance. Thanks Jeorge -- Sent from MetroMail
