gistfile1.txt

 // create a canvas element
    var canvas1 = document.createElement('canvas');
    var context1 = canvas1.getContext('2d');
    context1.font = "Bold 20px Arial";
    context1.fillStyle = "rgba(0,0,0,0.95)";
    context1.fillText('Hello, world!', 0, 20);
    document.getElementsByTagName('body')[0].appendChild(canvas1);

    // canvas contents will be used for a texture
    var texture1 = new THREE.Texture(canvas1)
    texture1.needsUpdate = false;

    setInterval(function () {
        context1.clearRect(0, 0, canvas1.width, canvas1.height);
        var message = 'abpppee' + i++;
        context1.fillText(message, 4, 20);
        texture1.needsUpdate = true;
    }, 1000)

    ////////////////////////////////////////

    var spriteMaterial = new THREE.SpriteMaterial({
        map: texture1,
        useScreenCoordinates: false
        //alignment: THREE.SpriteAlignment.topLeft
    });

    var sprite1 = new THREE.Sprite(spriteMaterial);
    sprite1.scale.set(2000, 1000, 1.0);
    sprite1.position.set(50, 50, 0);
    scene.add(sprite1);