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A “stereogram” is a picture where you normally see only a pattern, but when you squint or look at it from a distance, you will see another image appear in 3 Dimensions. Bigle 3D is a stereogram generator or SIS (Single Image Stereogram) to create your own stereograms. The wizard interface guides you through choosing a background and the grayed image that will appear in 3D. You can save your stereograms as one of the main image formats (bmp, png, jpg, tiff) and open even more types of images to create them.

The Persistence of Vision Raytracer (POV-Ray) is a high-quality, totally free tool for creating stunning three-dimensional graphics. POV-Ray creates three-dimensional, photo-realistic images using a rendering technique called ray-tracing. It reads in a text file containing information describing the objects and lighting in a scene and generates an image of that scene from the view point of a camera also described in the text file. Ray-tracing is not a fast process by any means, but it produces very high quality images with realistic reflections, shading, perspective and other effects. Visit the POV-Ray Community to see some of the incredible images this program has been used to create. It is available in official versions for Windows, Mac OS/Mac OS X and i86 Linux. The source code is available for those wanting to do their own ports.