English: Anti-aliasing is a process to convert pixel-noise in an image so that it looks more natural. In this example I rendered a wireframe horse in a CGI software with a low anti-aliasing and a high anti-aliasing (left) mode. The rendering time increases with anti-aliasing quality, in this case from less than a second to half a minute. The soft shadows are a specifically hard to render topic because the anti-aliasing algorithms have to find the soft edges and treat them as soft.