On Thu, Jul 28, 2011 at 11:23 PM, Graham Cox wrote:
> Am I right in thinking that using calls such as NSRectFill within a CALayer
> like this is really making OpenGL calls behind the scenes? If so it's
> probably going as fast as it can. On my middling iMac it's acceptably fast,
> but laptops s
In my iTunes visualizer, I'm using layers to draw many, many small rectangles
(to represent segments of a spectrum analyser display). There can be up to 32
bands x 40 segments x 2 channels = 2,560 segments, all redrawn 30 times per
second or more.
One layer is used for one bar, which is 40 rect
