Cool, thanks - Achim, I looked at the qtz you got it more or less (the math reduced sprite is still slightly larger).
I basically want to know the *exact *number, from Apple (or really, from anyone, but not a visual comparison/kinda close thing, like this). -George Toledo On Thu, Sep 9, 2010 at 12:45 PM, Achim Breidenbach <[email protected]> wrote: > Hello George, > > find attached a composition that does the z to width conversion. There is a > factor of 0.55 in the equation which I filled in by try-and-error. Don't ask > my where this value comes from. Anyone? > > Best, > > Achim Breidenbach > Boinx Software > > > > > On 09.09.2010, at 17:48, George Toledo wrote: > > > What kind of equation would be needed to utilize Z coordinates in QC in a > way that doesn't change Z translation, but could be used to reduce X/Y scale > in a way that makes the object appear to be equivalent size that they would > be if translated in Z? In addition, is it possible to emulate the apparent > reduction/exaggeration of horizontal or vertical movement of a sprite as it > is moved in z by performing math on x/y translations on an object where z > isn't at 0? > > > > Forgetting the x/y translate, it would be nice to know the equation to > make a sprite the same size it is at z=-1, z=-2, z=-3 and so on, by > manipulating x/y scale for instances when one wants everything to work in > only 2 dimensions. The relation isn't linear, and I'm not sure how to back > into it. > > > > If this has been covered, forgive me. > > > > -George Toledo > > _______________________________________________ > > 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/achim%40boinx.com > > > > This email sent to [email protected] > > >
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