Sorted Deferred Shading for Production Path Tracing

Eisenacher, C., Nichols, G., Selle, A., Burley, B. Eurographics Symposium on Rendering 2013, Best Paper.


Abstract: Ray-traced global illumination is becoming widespread. However, incoherent ray traversal and shading has traditionally limited ray tracing to scenes that fit in memory. To combat these issues, we introduce a sorting strategy for large, potentially out-of-core ray batches, and we sort and defer shading of ray hits. As a result, we achieve perfectly coherent shading and texture access, removing the need for a shading cache.

sorting-shading.pdf (11.2 MB)

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