org.joml.sampling

Class StratifiedSampling

java.lang.Object

org.joml.sampling.StratifiedSampling

public class StratifiedSampling
extends Object

Creates samples on a unit quad using an NxN strata grid.

Author:

Kai Burjack

Constructor Summary

Constructors

Constructor and Description
StratifiedSampling(long seed) Create a new instance of StratifiedSampling and initialize the random number generator with the given seed.

Method Summary

Modifier and Type	Method and Description
void	generateCentered(int n, float centering, Callback2d callback) Generate n * n random sample positions in the unit square of x, y = [-1..+1].
void	generateRandom(int n, Callback2d callback) Generate n * n random sample positions in the unit square of x, y = [-1..+1].

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StratifiedSampling

public StratifiedSampling(long seed)

Create a new instance of StratifiedSampling and initialize the random number generator with the given seed.

Parameters:

seed - the seed to initialize the random number generator with

Method Detail

generateRandom

public void generateRandom(int n,
                           Callback2d callback)

Generate n * n random sample positions in the unit square of x, y = [-1..+1].

Each sample within its stratum is distributed randomly.

Parameters:

n - the number of strata in each dimension

callback - will be called for each generated sample position

generateCentered

public void generateCentered(int n,
                             float centering,
                             Callback2d callback)

Generate n * n random sample positions in the unit square of x, y = [-1..+1].

Each sample within its stratum is confined to be within [-centering/2..1-centering] of its stratum.

Parameters:

n - the number of strata in each dimension

centering - determines how much the random samples in each stratum are confined to be near the center of the stratum. Possible values are [0..1]

callback - will be called for each generated sample position