Module rs_pbrt::core::sampling

Draw random samples from a chosen probability distribution.

Structs

• Distribution1D
• Distribution2D

Functions

• concentric_sample_disk
  Uniformly distribute samples over a unit disk.
• cosine_hemisphere_pdf
  Returns a weight of cos_theta / PI.
• cosine_sample_hemisphere
  Cosine-weighted hemisphere sampling using Malley’s method.
• latin_hypercube
• power_heuristic
  Reducing the variance according to Veach’s heuristic.
• shuffle
  Randomly permute an array of count sample values, each of which has n_dimensions dimensions.
• stratified_sample_1d
• stratified_sample_2d
• uniform_cone_pdf
  Uniformly sample rays in a cone of directions. Probability density function (PDF).
• uniform_hemisphere_pdf
  Uniformly sample rays in a hemisphere. Probability density function (PDF).
• uniform_sample_cone
  Samples in a cone of directions about the (0, 0, 1) axis.
• uniform_sample_hemisphere
  Uniformly sample rays in a hemisphere. Choose a direction.
• uniform_sample_sphere
  Uniformly sample rays in a full sphere. Choose a direction.
• uniform_sphere_pdf
  Probability density function (PDF) of a sphere.