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diff --git a/site/public/assets/javascripts/mx/mx.quaternion.js b/site/public/assets/javascripts/mx/mx.quaternion.js
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-/**
- * quaternion taken from three.js
- * @author mikael emtinger / http://gomo.se/
- * @author alteredq / http://alteredqualia.com/
- * @author WestLangley / http://github.com/WestLangley
- * @author bhouston / http://exocortex.com
- */
-
-MX.Quaternion = function ( x, y, z, w ) {
-
- this._x = x || 0;
- this._y = y || 0;
- this._z = z || 0;
- this._w = ( w !== undefined ) ? w : 1;
-
-};
-
-MX.Quaternion.prototype = {
-
- constructor: MX.Quaternion,
-
- _x: 0,_y: 0, _z: 0, _w: 0,
-
- _euler: undefined,
-
- _updateEuler: function ( callback ) {
-
- if ( this._euler !== undefined ) {
-
- this._euler.setFromQuaternion( this, undefined, false );
-
- }
-
- },
-
- get x () {
-
- return this._x;
-
- },
-
- set x ( value ) {
-
- this._x = value;
- this._updateEuler();
-
- },
-
- get y () {
-
- return this._y;
-
- },
-
- set y ( value ) {
-
- this._y = value;
- this._updateEuler();
-
- },
-
- get z () {
-
- return this._z;
-
- },
-
- set z ( value ) {
-
- this._z = value;
- this._updateEuler();
-
- },
-
- get w () {
-
- return this._w;
-
- },
-
- set w ( value ) {
-
- this._w = value;
- this._updateEuler();
-
- },
-
- set: function ( x, y, z, w ) {
-
- this._x = x;
- this._y = y;
- this._z = z;
- this._w = w;
-
- this._updateEuler();
-
- return this;
-
- },
-
- copy: function ( quaternion ) {
-
- this._x = quaternion._x;
- this._y = quaternion._y;
- this._z = quaternion._z;
- this._w = quaternion._w;
-
- this._updateEuler();
-
- return this;
-
- },
-
- setFromEuler: function ( euler, update ) {
-
- if ( euler instanceof MX.Euler === false ) {
- throw new Error( 'ERROR: Quaternion\'s .setFromEuler() now expects a Euler rotation rather than a Vector3 and order. Please update your code.' );
- }
-
- // http://www.mathworks.com/matlabcentral/fileexchange/
- // 20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
- // content/SpinCalc.m
-
- var c1 = Math.cos( euler._x / 2 );
- var c2 = Math.cos( euler._y / 2 );
- var c3 = Math.cos( euler._z / 2 );
- var s1 = Math.sin( euler._x / 2 );
- var s2 = Math.sin( euler._y / 2 );
- var s3 = Math.sin( euler._z / 2 );
-
- this._x = s1 * c2 * c3 + c1 * s2 * s3;
- this._y = c1 * s2 * c3 - s1 * c2 * s3;
- this._z = c1 * c2 * s3 + s1 * s2 * c3;
- this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
- if ( update !== false ) this._updateEuler();
-
- return this;
-
- },
-
- setFromAxisAngle: function ( axis, angle ) {
-
- // from http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
- // axis have to be normalized
-
- var halfAngle = angle / 2, s = Math.sin( halfAngle );
-
- this._x = axis.x * s;
- this._y = axis.y * s;
- this._z = axis.z * s;
- this._w = Math.cos( halfAngle );
-
- this._updateEuler();
-
- return this;
-
- },
-
- setFromRotationMatrix: function ( m ) {
-
- // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
-
- // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
- var te = m.elements,
-
- m11 = te[0], m12 = te[4], m13 = te[8],
- m21 = te[1], m22 = te[5], m23 = te[9],
- m31 = te[2], m32 = te[6], m33 = te[10],
-
- trace = m11 + m22 + m33,
- s;
-
- if ( trace > 0 ) {
-
- s = 0.5 / Math.sqrt( trace + 1.0 );
-
- this._w = 0.25 / s;
- this._x = ( m32 - m23 ) * s;
- this._y = ( m13 - m31 ) * s;
- this._z = ( m21 - m12 ) * s;
-
- } else if ( m11 > m22 && m11 > m33 ) {
-
- s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );
-
- this._w = (m32 - m23 ) / s;
- this._x = 0.25 * s;
- this._y = (m12 + m21 ) / s;
- this._z = (m13 + m31 ) / s;
-
- } else if ( m22 > m33 ) {
-
- s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );
-
- this._w = (m13 - m31 ) / s;
- this._x = (m12 + m21 ) / s;
- this._y = 0.25 * s;
- this._z = (m23 + m32 ) / s;
-
- } else {
-
- s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );
-
- this._w = ( m21 - m12 ) / s;
- this._x = ( m13 + m31 ) / s;
- this._y = ( m23 + m32 ) / s;
- this._z = 0.25 * s;
-
- }
-
- this._updateEuler();
-
- return this;
-
- },
-
- inverse: function () {
-
- this.conjugate().normalize();
-
- return this;
-
- },
-
- conjugate: function () {
-
- this._x *= -1;
- this._y *= -1;
- this._z *= -1;
-
- this._updateEuler();
-
- return this;
-
- },
-
- lengthSq: function () {
-
- return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
-
- },
-
- length: function () {
-
- return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );
-
- },
-
- normalize: function () {
-
- var l = this.length();
-
- if ( l === 0 ) {
-
- this._x = 0;
- this._y = 0;
- this._z = 0;
- this._w = 1;
-
- } else {
-
- l = 1 / l;
-
- this._x = this._x * l;
- this._y = this._y * l;
- this._z = this._z * l;
- this._w = this._w * l;
-
- }
-
- return this;
-
- },
-
- multiply: function ( q, p ) {
-
- if ( p !== undefined ) {
-
- console.warn( 'DEPRECATED: Quaternion\'s .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
- return this.multiplyQuaternions( q, p );
-
- }
-
- return this.multiplyQuaternions( this, q );
-
- },
-
- multiplyQuaternions: function ( a, b ) {
-
- // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
-
- var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
- var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;
-
- this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
- this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
- this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
- this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
-
- this._updateEuler();
-
- return this;
-
- },
-
- multiplyVector3: function ( vector ) {
-
- console.warn( 'DEPRECATED: Quaternion\'s .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
- return vector.applyQuaternion( this );
-
- },
-
- slerp: function ( qb, t ) {
-
- var x = this._x, y = this._y, z = this._z, w = this._w;
-
- // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
-
- var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
-
- if ( cosHalfTheta < 0 ) {
-
- this._w = -qb._w;
- this._x = -qb._x;
- this._y = -qb._y;
- this._z = -qb._z;
-
- cosHalfTheta = -cosHalfTheta;
-
- } else {
-
- this.copy( qb );
-
- }
-
- if ( cosHalfTheta >= 1.0 ) {
-
- this._w = w;
- this._x = x;
- this._y = y;
- this._z = z;
-
- return this;
-
- }
-
- var halfTheta = Math.acos( cosHalfTheta );
- var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );
-
- if ( Math.abs( sinHalfTheta ) < 0.001 ) {
-
- this._w = 0.5 * ( w + this._w );
- this._x = 0.5 * ( x + this._x );
- this._y = 0.5 * ( y + this._y );
- this._z = 0.5 * ( z + this._z );
-
- return this;
-
- }
-
- var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
- ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;
-
- this._w = ( w * ratioA + this._w * ratioB );
- this._x = ( x * ratioA + this._x * ratioB );
- this._y = ( y * ratioA + this._y * ratioB );
- this._z = ( z * ratioA + this._z * ratioB );
-
- this._updateEuler();
-
- return this;
-
- },
-
- equals: function ( quaternion ) {
-
- return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );
-
- },
-
- fromArray: function ( array ) {
-
- this._x = array[ 0 ];
- this._y = array[ 1 ];
- this._z = array[ 2 ];
- this._w = array[ 3 ];
-
- this._updateEuler();
-
- return this;
-
- },
-
- toArray: function () {
-
- return [ this._x, this._y, this._z, this._w ];
-
- },
-
- clone: function () {
-
- return new MX.Quaternion( this._x, this._y, this._z, this._w );
-
- }
-
-};
-
-MX.Quaternion.slerp = function ( qa, qb, qm, t ) {
-
- return qm.copy( qa ).slerp( qb, t );
-
-}
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