Skip to content

VEX Dictionary / sample_cdf

`sample_cdf`

Draws an index and value from a cumulative distribution function array using a uniform random number.

group: samplingpbrbsdfsampling

Available in every context

Usage

int sample_cdf(float cdf[], float uniform_rand)

void sample_cdf(float cdf[], float uniform_rand, int &index, float &x)

void sample_cdf(float cdf[], float uniform_rand, int &index, float &x, float &pdf)

Examples

No worked examples yet.

Signatures (from `vcc -X`)

int sample_cdf(float[], float)all contexts
void sample_cdf(float[], float, int &, float &)all contexts
void sample_cdf(float[], float, int &, float &, float &)all contexts

Related

Full SideFX documentation ↗