void ZeroTwoSequenceSampler::StartPixel(const Point2i &p) {
// Generate 1D and 2D pixel sample components using $(0,2)$-sequence
for (size_t i = 0; i < samples1D.size(); ++i)
VanDerCorput(1, samplesPerPixel, &samples1D[i][0], rng);
for (size_t i = 0; i < samples2D.size(); ++i)
Sobol2D(1, samplesPerPixel, &samples2D[i][0], rng);
// Generate 1D and 2D array samples using $(0,2)$-sequence
for (size_t i = 0; i < samples1DArraySizes.size(); ++i)
VanDerCorput(samples1DArraySizes[i], samplesPerPixel,
&sampleArray1D[i][0], rng);
for (size_t i = 0; i < samples2DArraySizes.size(); ++i)
Sobol2D(samples2DArraySizes[i], samplesPerPixel, &sampleArray2D[i][0],
rng);
PixelSampler::StartPixel(p);
}
// MaxMinDistSampler Method Definitions
void MaxMinDistSampler::StartPixel(const Point2i &p) {
Float invSPP = (Float)1 / samplesPerPixel;
for (int i = 0; i < samplesPerPixel; ++i)
samples2D[0][i] = Point2f(i * invSPP, SampleGeneratorMatrix(CPixel, i));
Shuffle(&samples2D[0][0], samplesPerPixel, 1, rng);
// Generate remaining samples for _MaxMinDistSampler_
for (size_t i = 0; i < samples1D.size(); ++i)
VanDerCorput(1, samplesPerPixel, &samples1D[i][0], rng);
for (size_t i = 1; i < samples2D.size(); ++i)
Sobol2D(1, samplesPerPixel, &samples2D[i][0], rng);
for (size_t i = 0; i < samples1DArraySizes.size(); ++i) {
int count = samples1DArraySizes[i];
VanDerCorput(count, samplesPerPixel, &sampleArray1D[i][0], rng);
}
for (size_t i = 0; i < samples2DArraySizes.size(); ++i) {
int count = samples2DArraySizes[i];
Sobol2D(count, samplesPerPixel, &sampleArray2D[i][0], rng);
}
PixelSampler::StartPixel(p);
}
