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. |
No compatibility data found. Please contribute data for "api.WebGLShaderPrecisionFormat.rangeMin" (depth: 1) to the MDN compatibility data repository.
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https://developer.mozilla.org/en-US/docs/Web/API/WebGLShaderPrecisionFormat/rangeMin