A HAIR MOTION COMPOSITOR SYSTEM AND OPTIMIZATION TECHNIQUES FOR USE IN A HAIR/FUR GRAPHICS PIPELINE

摘要

A view-dependent screen-space optimization techniques implemented by the optimization module 1567 of the hair/fur pipeline 1500 may be implemented by utilizing continuous metrics measured in screen-space that give both fine-grain control over the setting of hair parameters - such as hair density and hair width parameters at render time. Further, the behavior of optimization parameters may be customized by user-defined function curves. In one embodiment, surface definition module 1550 may be used to define a surface and optimization module 1567 may be used to determine whether a hair is to be rendered upon the surface. In particular optimization module 1567 may be used to: determine a size metric for the hair; apply a first density curve to the size metric determined for the hair to generate a density multiplier value; and based upon the density multiplier value, determine whether the hair should be rendered.