Towards Neural Path Tracing in SRAM
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We present an experimental neural path tracer designed to exploit the large on-chip memory of Graphcore intelligence-processing-units (IPUs). This open source renderer demonstrates how to map path tracing to the novel software and hardware architecture and is a useful tool for analysing in-cache neural-rendering scenarios. Such scenarios will be increasingly important if rasterisation is replaced by combinations of ray/path tracing, neural-radiance caching, and AI denoising/up-scaling, for which small neural networks are already routinely employed. A detailed description of the implementation also serves as a self-contained resource for more general software design on IPU.
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