CGI rendering is the first and very illustrative case of real Golem usage. Rather than using costly cloud-based services or waiting ages for one's own machine to complete the task, CGI artists can now rent compute resources from other users to render an image quickly. The payment from a requestor (in this case, a CGI artist) is sent directly to providers who made their resources available. In addition, when the artist's machine is idle, it can itself accept tasks from other users.