The read-only WebGLShaderPrecisionFormat.rangeMin property returns the base 2 log of the absolute value of the minimum value that can be represented.


var canvas = document.getElementById("canvas"); 
var gl = canvas.getContext("webgl");

gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT).rangeMin; // 127
gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.LOW_INT).rangeMin; // 24


Specification Status Comment
WebGL 1.0
The definition of 'WebGLShaderPrecisionFormat.rangeMin' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9 11.0 (11.0) 11 12 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) 25 11.0 (11.0) (Yes) 12 8.1

See also

Document Tags and Contributors

 Contributors to this page: fscholz
 Last updated by: fscholz,