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Sampling

Sampling determines how many rays are cast per pixel and how deep the rays are sampled.

Configuration​

There are three independent variables to steer sampling.

targetSamples​

Determines how many samples should be done. Each iteration is visualized.

Commonly set between 100 - 10'000.

samplesPerIteration​

How many samples should be done within each iteration.

samplesPerIteration * (targetSamples + 1) = total samples

Commonly set to 1 - 5.

maxRayDepth​

How many bounces a given ray should do before termination. Commonly set to 3 - 20.

In Code​

warning

Setting samplesPerIteration or maxRayDepth to high values may lead to a GPU crash

strahlConfiguration.js
runPathTracer(target, model, {
  targetSamples: 100,
  samplesPerIteration: 1,
  maxRayDepth: 2,
});