Z-buffer	Ray tracer

The two renders above show one scene. gman's z-buffer shades each surface from its lights alone and never asks what stands between them, so nothing casts a shadow.

Shadows, mirrors and glass all come from one move: fire a ray and see what it hits.

One ray …

A little c++ shader toy that I wrote for rendering a light model. Twenty Spheres This program is based on a classic computer graphics problem.

Yes...15 spheres are shown here!