demos/assets/g2.js
function multiply(out, a, b) {
  var a00 = a[0],
      a01 = a[1],
      a02 = a[2];
  var a10 = a[3],
      a11 = a[4],
      a12 = a[5];
  var a20 = a[6],
      a21 = a[7],
      a22 = a[8];

  var b00 = b[0],
      b01 = b[1],
      b02 = b[2];
  var b10 = b[3],
      b11 = b[4],
      b12 = b[5];
  var b20 = b[6],
      b21 = b[7],
      b22 = b[8];

  out[0] = b00 * a00 + b01 * a10 + b02 * a20;
  out[1] = b00 * a01 + b01 * a11 + b02 * a21;
  out[2] = b00 * a02 + b01 * a12 + b02 * a22;

  out[3] = b10 * a00 + b11 * a10 + b12 * a20;
  out[4] = b10 * a01 + b11 * a11 + b12 * a21;
  out[5] = b10 * a02 + b11 * a12 + b12 * a22;

  out[6] = b20 * a00 + b21 * a10 + b22 * a20;
  out[7] = b20 * a01 + b21 * a11 + b22 * a21;
  out[8] = b20 * a02 + b21 * a12 + b22 * a22;
  return out;
}
function multiply(out, a, b) {
  var a00 = a[0],
      a01 = a[1],
      a02 = a[2];
  var a10 = a[3],
      a11 = a[4],
      a12 = a[5];
  var a20 = a[6],
      a21 = a[7],
      a22 = a[8];

  var b00 = b[0],
      b01 = b[1],
      b02 = b[2];
  var b10 = b[3],
      b11 = b[4],
      b12 = b[5];
  var b20 = b[6],
      b21 = b[7],
      b22 = b[8];

  out[0] = b00 * a00 + b01 * a10 + b02 * a20;
  out[1] = b00 * a01 + b01 * a11 + b02 * a21;
  out[2] = b00 * a02 + b01 * a12 + b02 * a22;

  out[3] = b10 * a00 + b11 * a10 + b12 * a20;
  out[4] = b10 * a01 + b11 * a11 + b12 * a21;
  out[5] = b10 * a02 + b11 * a12 + b12 * a22;

  out[6] = b20 * a00 + b21 * a10 + b22 * a20;
  out[7] = b20 * a01 + b21 * a11 + b22 * a21;
  out[8] = b20 * a02 + b21 * a12 + b22 * a22;
  return out;
}
function multiply ( out , a , b ) { var a00 = a [ 0 ] , a01 = a [ 1 ] , a02 = a [ 2 ] ; var a10 = a [ 3 ] , a11 = a [ 4 ] , a12 = a [ 5 ] ; var a20 = a [ 6 ] , a21 = a [ 7 ] , a22 = a [ 8 ] ; var b00 = b [ 0 ] , b01 = b [ 1 ] , b02 = b [ 2 ] ; var b10 = b [ 3 ] , b11 = b [ 4 ] , b12 = b [ 5 ] ; var b20 = b [ 6 ] , b21 = b [ 7 ] , b22 = b [ 8 ] ; out [ 0 ] = b00 * a00 + b01 * a10 + b02 * a20 ; out [ 1 ] = b00 * a01 + b01 * a11 + b02 * a21 ; out [ 2 ] = b00 * a02 + b01 * a12 + b02 * a22 ; out [ 3 ] = b10 * a00 + b11 * a10 + b12 * a20 ; out [ 4 ] = b10 * a01 + b11 * a11 + b12 * a21 ; out [ 5 ] = b10 * a02 + b11 * a12 + b12 * a22 ; out [ 6 ] = b20 * a00 + b21 * a10 + b22 * a20 ; out [ 7 ] = b20 * a01 + b21 * a11 + b22 * a21 ; out [ 8 ] = b20 * a02 + b21 * a12 + b22 * a22 ; return out ; }
Multiplies two mat3's

@param {mat3} out the receiving matrix
@param {mat3} a the first operand
@param {mat3} b the second operand
@returns {mat3} out
Multiplies two mat3 s