Efficient ray traced soft shadows using multi-frusta tracing

@inproceedings{Benthin2009EfficientRT,
  title={Efficient ray traced soft shadows using multi-frusta tracing},
  author={Carsten Benthin and Ingo Wald},
  booktitle={High Performance Graphics},
  year={2009}
}
Ray tracing has long been considered to be superior to rasterization because its ability to trace arbitrary rays, allowing it to simulate virtually any physical light transport effect by just tracing rays. Yet, to look plausible, extraordinary amounts of rays for effects such as soft shadows are typically required. This makes the prospects of real-time performance rather remote. Rasterization, in contrast, has a record of producing such effects in real-time through employing specialized and… CONTINUE READING
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