On 14 Jun 2011, at 2:56 PM, 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:
For putting a rectangular grid of squares on the screen, if you know their color components and they're all in a single colorspace, it should be much faster to fill in a buffer of color values, create an image with CGImageCreate(), and blit that. _______________________________________________ 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 arch...@mail-archive.com
