Why does my picture look all jaggedy when I convert it to PostScript?
The first thing you have to realize is that there is a fundamental difference between a raster image (which is what Raster3D produces) and a PostScript file. The PostScript language is designed to describe characters, lines, and shapes in terms of coordinates on a page of a certain physical size. A raster image knows nothing about characters, lines, shapes, or pages of any size; it’s just a bunch of colored dots (pixels). It is possible to describe a pixel dump in PostScript, but unless you are extremely careful the image quality may degrade substantially.
