The read-only WebGLShaderPrecisionFormat.precision property returns the number of bits of precision that can be represented.

For integer formats this value is always 0.


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

gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT).precision; // 23
gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.LOW_INT).precision; // 0


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

Browser compatibility

BCD tables only load in the browser

See also