Hi, I have a CALayer covering my view, with a blur background filter. Works fine for static cases - everything behind the blur layer is blurred. However, for layers that update themselves continuously - eg QTMovieLayer or QCCompositionLayer - or even just plain layers that move, I get ugly trails around the edges of the layers behind the blurring layer, as though it's not properly redrawing anything outside the bounds of the layer being blurred.
To try and get round this, I subclassed CALayer and tried hooking into a variety of display methods (drawInContext, display, setNeedsDisplay), in the hope that I could call setNeedsDisplay on the blur layer whenever one of the layers being blurred changes, but those methods don't seem to be called during normal operation (eg when a QCCompositionLayer renders a new frame, or when a layer changes position). See http://pastie.org/190470 - this is a simple QC layer on the left, and a couple of moving red/green layers. The QC Layer is permanently surrounded by that white border, and the moving layers leave a trail behind them as they move around. What am I missing? Jon _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
