ABSTRACT
There is more involved in making an image than simply portraying objects. Part of making an image appear photorealistic is having it look like a photo. Just as a photographer adjusts their final result, we may also wish to modify, say, the color balance. Adding film grain, vignetting, and other subtle changes to the rendered image can make a rendering look more convincing. Alternately, more dramatic effects such as lens flares and bloom can convey a sense of drama. Portraying depth of field and motion blur can increase realism and be used for artistic effect.
