Browsing Volume 17 (1998) by Title

Now showing items 88-89 of 89

Using Wavefront Tracing for the Visualization and Optimization of Progressive Lenses

Loos, J.; Slusallek, Ph.; Seidel, H.-P. (Blackwell Publishers Ltd and the Eurographics Association, 1998)

Progressive addition lenses are a relatively new approach to compensate for defects of the human visual system. While traditional spectacles use rotationally symmetric lenses, progressive lenses require the specification ...
A Vector Approach for Global Illumination in Ray Tracing

Zaninetti, Jacques; Serpaggi, Xavier; Peroche, Bernard (Blackwell Publishers Ltd and the Eurographics Association, 1998)

This paper presents a method taking global illumination into account in a ray tracing environment. A vector approach is introduced, which allows to deal with all the types of light paths and the directional properties of ...