Photon map**, an extension of ray tracing, makes it possible to efficiently simulate global
illumination in complex scenes. Photon map** can simulate caustics (focused light, like …

We present a solution to the aliasing problem for shadow algorithms that use depth maps.
The solution is based on a new filtering technique called percentage closer filtering. In …

We present a method for rendering scenes with fine detail via an object called a texel, a
rendering primitive inspired by volume densities mixed with anisotropic lighting models. This …

The various types of shadows are characterized. Most existing shadow algorithms are
described, and their complexities, advantages, and shortcomings are discussed. Hard …

This paper presents a technique for estimating the spatially-varying reflectance properties of
a surface based on its appearance during a single pass of a linear light source. By using a …

The effect of shadows and interreflection created by room obstructions is an important factor
in the continuous tone representation of interiors. For indirect illumination, in most cases a …

Studio spotlights produce dazzling shafts of light, while light scattered from fog illuminated
by automobile headlights renders driving difficult. This is because the particles in the …

This paper describes an object-space shadow generation algorithm for static polygonal
environments illuminated by movable point light sources. The algorithm can be easily …

A major problem challenging opera designers is the inability to co-ordinate lighting,
projection systems, and set designs in the preliminary planning phase. New computer …

PCT patent application number PCT/US2011/051403 further claims the benefit of the earlier
filing date of US Provisional Application 61/384,284 entitled “System and Method of …