(Btw, what does "pixel aligned" mean in the billboard)?

Pixel-aligned makes the billboard "pixel-exact" even when the billboard falls between pixels (see composition for a visual explanation)

Attachment: pixel aligned.qtz
Description: application/quartzcomposer



- Re: absolute positioning in QC, apparently it's common knowledge that it's a pain? I saw this in an old list email but the example link was broken for
a patch to solve the issue...

Does the Anchor patch help any? (I'm on 10.5 at the moment *gasp* so I can't get your composition to work for the life of me... :/) Can you reference the list email? perhaps someone has the patch handy (or can explain how it works)?

- Another related scenario is trying to set up QC to play various media (for ex., playing successive videos in PAL, NTSC, 720p) and appear properly on screen using a video projector (like QuickTime Player can do). I am not clear how to set up a QC comp to do this. For me this usually means some projector(s) in some performance venue, having other performers hand me stuff to play for their pieces, me being nice and trying to help out, etc. Could be a small club or a larger theater, someone's house or outside on a
building. These days I travel with just my laptop and a DVI cable, but
things can shift depending on the show. In general I'm pretty small scale
and underground.

I'm not exactly sure what the problem is here -- is it video sizes that's throwing you off? if so, the math to resize a movie to fit/ fill the output isn't too complicated. If it's something else though, it might need a different solution. Please elaborate some :)

Finally, is there anything related to the limitations of my ol' MBP I need
to know regarding this issue?

The X1600 has some issues I experienced pre-Apple with color space tricks some apps use (if it's running, you've successfully avoided them, so no worries there). You'll likely be missing out on CL, and there _might_ be some unusual CoreImage blending? (at least, a long time ago there were some quirks when doing operations with alpha).

--
[ christopher wright ]
[email protected]
http://kineme.net/

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