Requirements: A digital camera with 3D function, Photoshop CC, 3D glasses to watch in 3D
The photos to be used should be taken the photo with a camera with 3D function. It can also be done with a camera without this feature, and then you would have to take pictures from measured lengths. The length between the camera positions should be exactly 2.5 inches. With the 3D function on the camera it is easy as taking a panorama picture. I used Nikon Coolpix S6500 camera for doing this. The 3D function can be enabled from Scene selection in Settings. If you don't find 3D in there, your camera may not be supporting 3D. They say that these images can be viewed in 3D with a 3D TV. Who would buy a television to watch a couple of photos? We will watch it on our computer itself: IN 3Dimension! Carefully take the picture with the 3D scene setting. Transfer the photo to your computer. The file is in .MPO format. This file cannot be normally opened in Windows. The old versions of the Photoshop also don’t support this file format. Even Photoshop CS5 doesn't support MPO files. That's why I said we need Photoshop CC. Open the file in Photoshop. Now you'll see that the image has loaded and you can see to instances of the photo you took. Actually it is not a second instance, as you know stereoscopic 3D is made of two images. The two images are in two layers. Now you have placed one over the other. Now you only see one image instead of two. If one image is blocking the view of the other, you are doing it right! Now double click on the upper layer and turn off the green and blue channels. Now the stereoscopic image is complete. You can test it using 3D glasses. After that, crop the picture and save it as an image format you like.
That is how you make anaglyph pictures with Photoshop. With these pictures, you can also create 3D models too. But you can't do that in Photoshop. First you have to split these photos into two individual images and save them on your computer. Then download Photosculpt Textures 2. Now open both the photos in Photosculpt Textures. Then click on sculpt. Yes it is simple as that. Now Photosculpt Textures will render the model from the two images. You can also save these files as .obj for using in 3D animation software.
I hope I have explained all the steps so that everyone would understand. If you have any difficulty, feel free to ask in comments.