dist/axis3d.js
/**
* Calculates a 3x3 matrix from the given quaternion
*
* @alias mat3.fromQuat
* @param {mat3} out mat3 receiving operation result
* @param {quat} q Quaternion to create matrix from
*
* @returns {mat3} out
*/
Calculates a 3x3 matrix from the given quaternion
Calculates a 3x3 matrix from the given quaternion
function fromQuat(out, q) {
  var x = q[0];
  var y = q[1];
  var z = q[2];
  var w = q[3];
  var x2 = x + x;
  var y2 = y + y;
  var z2 = z + z;
  var xx = x * x2;
  var yx = y * x2;
  var yy = y * y2;
  var zx = z * x2;
  var zy = z * y2;
  var zz = z * z2;
  var wx = w * x2;
  var wy = w * y2;
  var wz = w * z2;
  out[0] = 1 - yy - zz;
  out[3] = yx - wz;
  out[6] = zx + wy;
  out[1] = yx + wz;
  out[4] = 1 - xx - zz;
  out[7] = zy - wx;
  out[2] = zx - wy;
  out[5] = zy + wx;
  out[8] = 1 - xx - yy;
  return out;
}
function fromQuat ( out , q ) { var x = q [ 0 ] ; var y = q [ 1 ] ; var z = q [ 2 ] ; var w = q [ 3 ] ; var x2 = x + x ; var y2 = y + y ; var z2 = z + z ; var xx = x * x2 ; var yx = y * x2 ; var yy = y * y2 ; var zx = z * x2 ; var zy = z * y2 ; var zz = z * z2 ; var wx = w * x2 ; var wy = w * y2 ; var wz = w * z2 ; out [ 0 ] = 1 - yy - zz ; out [ 3 ] = yx - wz ; out [ 6 ] = zx + wy ; out [ 1 ] = yx + wz ; out [ 4 ] = 1 - xx - zz ; out [ 7 ] = zy - wx ; out [ 2 ] = zx - wy ; out [ 5 ] = zy + wx ; out [ 8 ] = 1 - xx - yy ; return out ; }
Calculates a 3x3 matrix from the given quaternion
Calculates a 3x3 matrix from the given quaternion