Area Sampling Buffer: Tracing Rays with Z‐Buffer Hardware
Kelvin Sung · Computer Graphics Forum · 1992
Abstract An algorithm that allows the use of z‐buffer hardware in assisting area sampling for a ray tracing style renderer is described. The implementation issues involved in discretizing the sampling area and light source area are discussed and solutions are proposed. The effects of the hardware‐assisted ray tracing approach on frame‐buffer systems and image synthesis processes are considered.