https://example.com/ Worklogs on GPU performance, path tracing, and ML kernels. en https://example.com/writing/multiple-importance-sampling/ https://example.com/writing/multiple-importance-sampling/ Sun, 09 Aug 2026 00:00:00 +0000 Why my glossy spheres were noisy at grazing angles — and what a 2.3× variance reduction actually costs per sample.