var rotation = Quat.safeEulerAngles(Camera.getOrientation());
rotation = Quat.fromPitchYawRollDegrees(0, rotation.y, 0);
var center = Vec3.sum(MyAvatar.position, Vec3.multiply(6, Quat.getFront(rotation)));

 //"shaderUrl":"file:///E:/Temp/hackaton/thursday/hack0.fs",
 //"shaderUrl":"file:///E:/Temp/hackaton/thursday/hack0.fs",
       
var proceduralJSON = {
    "ProceduralEntity": {
        "version":2,
        "shaderUrl":"file:///E:/Temp/hackaton/thursday/hack0.fs",
        "channels":[
            "http://demos.vicomtech.org/volren/aorta-high.jpg",
            "http://demos.vicomtech.org/volren/tf.png"
        ],
        "uniforms":{
            "iControlMode": [3.0, 0.0, 0.0, 0.0],
            "iHandPos": [0.0, 0.0, 0.0, -1.0],
            "iTransferFunctionRange": [0.0, 0.0, 1.0, 0.0]
        }
    }
}

var theUserData = JSON.stringify(proceduralJSON);

var volumeEntity = Entities.addEntity({
    name: 'VolumeEntity',
    dimensions: {
        x: 10,
        y: 10,
        z: 10
    },
    type: 'Box',
    position: center,
    color: {
        red: 255,
        green: 255,
        blue: 255
    },
    visible: true,
    collisionless: true,  
    collidesWith: "static,dynamic,kinematic",
    userData: theUserData
});