How to use the gl-matrix-mat3.invert function in gl-matrix-mat3
To help you get started, we’ve selected a few gl-matrix-mat3 examples, based on popular ways it is used in public projects.
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tmpvar / ctx-get-transform / demo.js View on Github 
var ctx = require('fc')(function() {
ctx.fillStyle = "red";
ctx.clear();
ctx.save();
ctx.translate(window.innerWidth/2, window.innerHeight/2);
ctx.scale(scale, scale);
// compute where the mouse is in the scene
var mat = ctx.getTransform();
mat3.invert(m3scratch, mat)
vec2.transformMat3(v2scratch, mouse, m3scratch);
// draw the mouse!
ctx.fillRect(v2scratch[0] - 5, v2scratch[1] - 5, 10, 10);
ctx.restore();
}, true);gl-matrix-mat3
Standalone Matrix3 component of gl-matrix
