Super fast HTML 5 2D rendering engine , supporting Canvas and WebGL rendering
To achieve this effect:
You need to use the following code:
var bmp, stage = new Stage("#ourCanvas");
bmp = new Bitmap("img/atLogo.png");
//（0.5,0.5）==〉The center is the point of rotation
bmp.originX = 0.5;
bmp.originY = 0.5;
//bind click event, the event monitor can be accurate to pixel
bmp.onClick(function () {
//apply a random filter to the bmp
bmp.setFilter(Math.random(), Math.random(), Math.random(), 1);
});
//add object to stage
stage.add(bmp);
var step = 0.01;
//loop
stage.onTick(function () {
bmp.rotation += 0.5;
if (bmp.scaleX > 1.5 || bmp.scaleX < 0.5) {
step *= -1;
}
bmp.scaleX += step;
bmp.scaleY += step;
});If you’re interested in AlloyRenderingEngine then feel free to follow me on twitter (@iamzhanglei) .
This content is released under the (http://opensource.org/licenses/MIT) MIT License.