sampledisk

void  sampledisk(float &x, float &y, float sx, float sy)

This function warps uniform sample values so that they are equally distributed on a disk. The transformation attempts to preserve stratification properties from the original samples.

x, y

The function overwrites these variables with uniform distributed points within the unit disk.

sx, sy

Uniform random values in the range [0,1], such as generated by nextsample.