There was a recent discussion about this on the Quartz Composer developer list. I would do a search and peruse through that.
That said, the method described here has worked well for me: http://kineme.net/forum/Discussion/DevelopingCompositions/TiltshiftPluginAEFinalcutMotion#comment-14202 Examine the Core Image Kernel in the VariableBlur-Circle_03c2.qtz attachment. Replace with a linear gradient instead of a circular gradient. Best regards, George Toledo On Wed, Aug 25, 2010 at 6:52 PM, Keith Lang <[email protected]> wrote: > Hi all, > > I'm trying to fake tilt-shift photography (limited focal depth, making > each end of the image out of focus/blurred), starting with an input of > a 2d image. > > The best approach I can find so far is to apply a blur, and then Blend > with Mask, with a mask as a gradient… > as described here http://d.hatena.ne.jp/ke_takahashi/20081006/p2 > > However it's not really the result I'm after, because halfway you have > a composite of both the in-focus image and the out-of-focus image. > > I'm not even sure how to go about doing this, aside from learning how > to code a blur filter that applies a different radius blur to each > pixel based on the corresponding pixel in a gradient image. > > Keith. > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/gtoledo3%40gmail.com > > This email sent to [email protected] >
_______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
