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function _transformMat4ToTuple(param, mat4) {
var z = param[2];
var y = param[1];
var x = param[0];
var w = mat4[3] * x + mat4[7] * y + mat4[11] * z + mat4[15];
var d = w;
w = d !== 0 ? d : 1.0;
return [
(mat4[0] * x + mat4[4] * y + mat4[8] * z + mat4[12]) / w,
(mat4[1] * x + mat4[5] * y + mat4[9] * z + mat4[13]) / w,
(mat4[2] * x + mat4[6] * y + mat4[10] * z + mat4[14]) / w
];
}
var transformMat4Tuple = _transformMat4ToTuple;
function add(kind, param, param$1) {
return [
param[0] + param$1[0],
param[1] + param$1[1],
param[2] + param$1[2]
];
}
function multiply(kind, param, param$1) {
return [
param[0] * param$1[0],
param[1] * param$1[1],
param[2] * param$1[2]
];
}
function sub(kind, param, param$1) {
return [
param[0] - param$1[0],
param[1] - param$1[1],
param[2] - param$1[2]
];
}
function scale(param, kind, scalar) {
return [
param[0] * scalar,
param[1] * scalar,
param[2] * scalar
];
}
function lerp(param, param$1, t) {
var z1 = param[2];
var y1 = param[1];
var x1 = param[0];
return [
x1 + t * (param$1[0] - x1),
y1 + t * (param$1[1] - y1),
z1 + t * (param$1[2] - z1)
];
}
function cross(param, param$1) {
var z2 = param$1[2];
var y2 = param$1[1];
var x2 = param$1[0];
var z1 = param[2];
var y1 = param[1];
var x1 = param[0];
return [
y1 * z2 - y2 * z1,
z1 * x2 - z2 * x1,
x1 * y2 - x2 * y1
];
}
function normalize(param) {
var z = param[2];
var y = param[1];
var x = param[0];
var d = Math.sqrt(x * x + y * y + z * z);
Iif (d === 0) {
return [
0,
0,
0
];
} else {
return [
x / d,
y / d,
z / d
];
}
}
var transformQuat = (function(a, q){
// benchmarks: https://jsperf.com/quaternion-transform-vec3-implementations-fixed
let qx = q[0], qy = q[1], qz = q[2], qw = q[3];
let x = a[0], y = a[1], z = a[2];
// var qvec = [qx, qy, qz];
// var uv = vec3.cross([], qvec, a);
let uvx = qy * z - qz * y,
uvy = qz * x - qx * z,
uvz = qx * y - qy * x;
// var uuv = vec3.cross([], qvec, uv);
let uuvx = qy * uvz - qz * uvy,
uuvy = qz * uvx - qx * uvz,
uuvz = qx * uvy - qy * uvx;
// vec3.scale(uv, uv, 2 * w);
let w2 = qw * 2;
uvx *= w2;
uvy *= w2;
uvz *= w2;
// vec3.scale(uuv, uuv, 2);
uuvx *= 2;
uuvy *= 2;
uuvz *= 2;
// return vec3.add(out, a, vec3.add(out, uv, uuv));
return [
x + uvx + uuvx,
y + uvy + uuvy,
z + uvz + uuvz
]
});
exports._transformMat4ToTuple = _transformMat4ToTuple;
exports.transformMat4Tuple = transformMat4Tuple;
exports.add = add;
exports.multiply = multiply;
exports.sub = sub;
exports.scale = scale;
exports.lerp = lerp;
exports.cross = cross;
exports.normalize = normalize;
exports.transformQuat = transformQuat;
/* No side effect */
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