rhb-server/mes-ui/rhb-app/node_modules/gl-vec3/normalize.js
2025-10-20 11:14:41 +08:00

23 lines
484 B
JavaScript

module.exports = normalize;
/**
* Normalize a vec3
*
* @param {vec3} out the receiving vector
* @param {vec3} a vector to normalize
* @returns {vec3} out
*/
function normalize(out, a) {
var x = a[0],
y = a[1],
z = a[2]
var len = x*x + y*y + z*z
if (len > 0) {
//TODO: evaluate use of glm_invsqrt here?
len = 1 / Math.sqrt(len)
out[0] = a[0] * len
out[1] = a[1] * len
out[2] = a[2] * len
}
return out
}