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WebGLShaderPrecisionFormat - Web API | MDN

WebGLShaderPrecisionFormat

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WebGLShaderPrecisionFormat å¯¹è±¡éè¿WebGLRenderingContext.getShaderPrecisionFormat() æ¹æ³æ¥è¿åã

var canvas = document.getElementById("canvas");
var gl = canvas.getContext("webgl");
gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT);
// WebGLShaderPrecisionFormat { rangeMin: 127, rangeMax: 127, precision: 23 }

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