How to use the gl-mat4.invert function in gl-mat4
To help you get started, we’ve selected a few gl-mat4 examples, based on popular ways it is used in public projects.
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jscad / OpenJSCAD.org / packages / utils / regl-renderer / src / rendering / commands / drawMesh / index.js View on Github 
unormal: (context, props) => {
const model = props.model || props.transforms.matrix
// console.log('here', model)
// const model = mat4.identity([])
const modelViewMatrix = mat4.multiply(mat4.create(), model, props.camera.view)
const normalMatrix = mat4.create()
mat4.invert(normalMatrix, modelViewMatrix)
mat4.transpose(normalMatrix, normalMatrix)
return normalMatrix
}
},function getEye(out, view) {
mat4.invert(m4scratch, view);
out[0] = m4scratch[12];
out[1] = m4scratch[13];
out[2] = m4scratch[14]
return out;
}unormal: (context, props) => {
const model = props.model
const modelViewMatrix = mat4.multiply(mat4.create(), model, props.camera.view)
const normalMatrix = mat4.create()
mat4.invert(normalMatrix, modelViewMatrix)
mat4.transpose(normalMatrix, normalMatrix)
return normalMatrix
}
},gl-mat4
gl-matrix's mat4, split into smaller pieces
