var image3 = mesh.material.map.image;
        var testCanvas = image3.getContext('2d').canvas;
        var canvasData = testCanvas.toDataURL("image/jpeg");
        undoArray[undoArrayCursor] = canvasData;

var canvasimg = mesh.material.map.image;
    var img = new Image();
    img.src = srcimg;
    var tmpcanvas = document.createElement('canvas');
    tmpcanvas.width = canvasimg.width;
    tmpcanvas.height = canvasimg.height;
    var tmpctx = tmpcanvas.getContext('2d');
    tmpctx.drawImage(img,0,0);
    var pMap = new THREE.Texture( tmpcanvas );
    pMap.flipY = true;
    pMap.needsUpdate = true;
    pMaterial = new THREE.MeshLambertMaterial( { map:pMap } );
    mesh.material = pMaterial;