# EnvMapCDFGenerator

Precomputes marginal and conditional CDF textures from an equirectangular HDR environment map for luminance importance sampling.

## Constructor

### new EnvMapCDFGenerator()

## Source

[examples/jsm/tsl/display/ImportanceSampledEnvironment.js](https://github.com/mrdoob/three.js/blob/master/examples/jsm/tsl/display/ImportanceSampledEnvironment.js)