Tag
importance-sampling
- Jan 2, 2026 Weight Variance and Effective Sample Size in Importance Sampling Reweighting a proposal sample is exact only in the limit, and the estimator variance is governed by the second moment of the weights, which the effective sample size summarizes. scientific computing
- Jul 25, 2025 Sampling BRDF Lobes and Choosing Between Them How a probability density over outgoing directions turns a reflectance integral into a weighted average, why GGX sampling has a closed form, and how lobe selection probabilities affect variance. computer graphics