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Simulating realistic lighting and rendering complex scenes are usually considered separate problems with incompatible solutions. Accurate lighting calculations are typically performed using ray tracing algorithms, which require that the entire scene database reside in memory to perform well. Conversely, most systems capable of rendering complex scenes use scan-conversion algorithms that access memory coherently, but are unable to incorporate sophisticated illumination. We have developeddoi:10.1145/258734.258791 dblp:conf/siggraph/PharrKGH97 fatcat:zl6rc4pbqjbjrj4x7v442ddzxa