Now showing items 1-2 of 2
On Quality Metrics of Bounding Volume Hierarchies
The surface area heuristic (SAH) is widely used as a predictor for ray tracing performance, and as a heuristic to guide the construction of spatial acceleration structures. We investigate how well SAH actually predicts ray ...
Megakernels Considered Harmful: Wavefront Path Tracing on GPUs
When programming for GPUs, simply porting a large CPU program into an equally large GPU kernel is generally not a good approach. Due to SIMT execution model on GPUs, divergence in control flow carries substantial performance ...