Shading is an important part of computer imagery, but shaders have been based on fixed
models to which all surfaces must conform. As computer imagery becomes more …

This paper describes an implementation of Cook's" shade trees" in which shaders are
described as networks of modules, building blocks, whose connections can be defined …

While traditional graphics techniques provide for the realistic display of three-dimensional
objects, these methods often lack the flexibility to emulate expressive effects found in the …

A shading language provides a means to extend the shading and lighting formulae used by
a rendering system. This paper discusses the design of a new shading language based on …

To accurately render a scene, global illumination information that affects the intensity of each
pixel of the image must be known at the time the intensity is calculated. In a simplified form …

A procedure for computing shaded pictures of curved surfaces is presented. The surface is
approximated by small polygons in order to solve easily the hidden-parts problem, but the …

The degree of realism of the shaded image of a tree-dimensional scene depends on the
successful simulation of shading effects. The shading model has two main ingredients …

Existing shape-from-shading algorithms assume constant reflectance across the shaded
surface. Multi-colored surfaces are excluded because both shading and reflectance affect …

To accurately render a two-dimensional image of a three-dimensional scene, global
illumination information that affects the intensity of each pixel of the image must be known at …

Over the years, there have been two main branches of computer graphics image-synthesis
research; one focused on interactivity, the other on image quality. Procedural shading is a …