Blind down animation on CALayer using a mask?

Another thing to try. Check out CALayer s contentRect property. It acts as a 'viewport' over the layer.To animate it start contentRect with a shrunk down value then set it to go full size.

Core Animation takes care of animating it for you.

Another thing to try. Check out CALayer's contentRect property. It acts as a 'viewport' over the layer.To animate it start contentRect with a shrunk down value then set it to go full size.

Core Animation takes care of animating it for you. Not sure if it's exactly the effect you're looking for, but there are a few things to keep in mind: contentsRect is in 'unit coordinates' meaning the values are floats between 0.0 and 1.0 (with 0.0 meaning show nothing and 1.0 means show everything). Layer coordinates are flipped from UIView coordinates.

So 0.0, 0.0, is bottom left and values go up and to the right. You'll have to make some adjustments to get the right effect. Depending on what's inside the blinds, you may have to set masksToBounds=YES.

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