The read-only WebGLShaderPrecisionFormat.rangeMax
property returns the base 2 log of the absolute value of the maximum value that can be represented.
var canvas = document.getElementById('canvas'); var gl = canvas.getContext('webgl'); gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT).rangeMax; // 127 gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.LOW_INT).rangeMax; // 24
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'WebGLShaderPrecisionFormat.rangeMax' in that specification. | Recommendation | Initial definition. |
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Servo |
---|---|---|---|---|---|---|---|
Basic Support | 9 | 12 | 11.0 | 11 | 12 | 5.1 | No support |
Feature | Android | Chrome for Android | Edge Mobile | Firefox for Android | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic Support | (Yes) | 25 | No support | (Yes) | 11 | 12 | 8.1 |
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https://developer.mozilla.org/en-US/docs/Web/API/WebGLShaderPrecisionFormat/rangeMax