A development environment for RenderMan shaders has been implemented , allowing the SL programmer to observe the bahaviour of variables in both time and space. By allowing both novices and experts to visualise the execution of their code, the creation of shaders is much simplified without restricting the flexability of the SL language.
Film grain is an essential part of real images. The artifacts it introduces add character to images, which can otherwise appear too perfect. This paper considers the synthesis of film grain based upon its noise-power spectrum, producing grain fields which approximate real film over a range of enlargements and densities. We also identify limitations of the… (More)