Defining and Refining Frameless Rendering
Ellen J S Zagier · 1996
Frameless Rendering (FR) is a rendering paradigm which performs stochastic temporal filtering by updating pixels in a random order, based on most recent available input data, and displaying them to the screen immediately [3]. It has inherent in its design, visual artifacts that come across as “spatialscatter”. Due to the asynchronicity of pixel updates, a noisy or “scattered ” image is perceived if the update rate is not fast enough. We describe the factors that influence the perceptualquality when Frameless Rendering is implemented such as object and viewpoint velocities, pattern and object size, and pattern and object separation. The factors are formalized mathematically with respect to their impact on spatial scatter. Spatial scatter is defined formally as a combination of velocity, density and gradient. We also attempt to define Frameless Rendering in terms of a new