On Jun 14, 2011, at 14:56, Stephen Blinkhorn wrote: > I'm looking to fill a large custom view with noise. The solution I have > arrived at so far is taking much too long to draw for it to be useable. Does > anyone know any better ways of achieving this in Cocoa? The basic idea is to > add an amount of noise to a base color pixel by pixel, for example:
Have you looked into using Core Image, e.g. the CIRandomGenerator filter composited onto an image filled with the base color? For something trivial (in Core Image terms) like this, there's a fairly steep learning curve, but the point of Core Image *is* performance. _______________________________________________ Cocoa-dev mailing list ([email protected]) 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]
