nrandom VEX function

The nrandom() functions are non-deterministic random number generators for VEX.

1. float nrandom()

2. vector nrandom()

3. vector4 nrandom()

4. float nrandom(float )

The nrandom() functions are non-deterministic random number generators for VEX. Numbers generated will be between 0 and 1. These random generators will generate the same sequence of random numbers if called in precisely the same order. However, there is no seed involved so it is not possible to reproduce the same random number or sequence multiple times.

You can optionally specify a string argument to choose the random number generation method. The string may be one of:

• default: Efficient random number generation. This method is backward compatible with previous releases of Houdini.

• mersenne or twister: Uses the Mersenne Twister which has some very nice properties. This code is based of the work of: Copyright (C) 1997

  • 2002, Makoto Matsumoto and Takuji Nishimura, All rights reserved.

• qstrat: Uses a quasi-stratified random number generator. This tends to distribute the random numbers evenly, reducing clumping and spacing.