right now i am using
var butterfly = awe.projections.view('twinks@gmail.com');
alert("butterfly..." +butterfly);
var i = 1;
butterfly.update({
position:{
y:1
},
animation:{
duration:6, // 5 animation steps are 1/5th of a second
repeat:Infinity, // play for 1 second total
persist:true,

                            step_callback:function() { 
                              // alert("callback fun");
                              console.log("hello callback" +i +'img/' + i + '.png');
                              i++; 
                              if (i>6) { 
                                i = 1; 
                              } // add time scaling here if the animation is too fast
                              butterfly.update({ 
                                texture:{ 
                                  path:'img/' + i +'.png'
                                } 
                              });
                            }
                          }
                        });

to update 6 images one by one but it is not working.
My poi id is $scope.poiLocations.push({
poi_id: 'Twinkle',
polar: {
angle: brng,
radius: 50,
height: 20,
email: 'twinks@gmail.com',

                                    },
                                });

and projection is

awe.projections.add({
id: 'twinks@gmail.com',
// geometry: { shape: 'cube', x:50, y:50, z:50 },
geometry: {
shape: 'plane',
height: 10,
width: 20
},
rotation: {
x: 0,
y: getRotation($scope.poiBarrings['Twinkle']),
z: 0
},
// rotation: getRotation($scope.poiBarrings[zoneUser.fullname]),
material: {
type: 'phong',
color: 0xFFFFFF
},
texture: {
path: 'img/1.png'
},
}, {
poi_id: 'Twinkle'
});

how can i update those images on one object.

if i use material: { type: 'phong', color: 0xFFFFFF } using projections.update method then i getting desired result i mean changing the color and position and also rotating object but not changing images another after one.

No any update code given for texture to update image in awe library, so is it compulsory that it should be available in library.

please give me reply soon if possible.