Hi All, i've created a little screensaver (not app, just a simple
QTZ) and I"ve noticed a strange behaviour on my dual monitor Mac Pro
which I can't identify.
Briefly what I do do is:
- get the current screen image
- scale it down
- create another image with same dimensions
- in this image an object is moving around, and leaving a trail with
accumulation buffers
- I use that render in image to displacement distort the background
On my laptop (macbook pro, ATI 1600) it all looks fine. On my dual
monitor mac pro (ATI1900) I get a rip down the middle of both screens
when the distortion is taking place. Its hard to explain but basically
looks like when the object crosses over from the left half of the
screen to the right side (or vice versa), the distortion map isn't
continuos - even though it is on my laptop. Also works fine on the Mac
Pro running the QTZ in QC in a window, but I get the rip when running
single monitor fullscreen in QC.
I'm not sure if this is a bug with either render in image, or
accumulation buffers displacement distorts (because there is no break
in the rendered image of the displacement), or I'm omitting something
which I should be taking into consideration..
The QTZ is 1MB so I didn't attach it, it can be downloaded from here http://memo.tv/files/memotv/memotv%20FSM%20Screen%20Saver.qtz
(or if that url gets encoded wrong and doesn't work, here http://memo.tv/his_spaghedeitys_screen_saver)
On a slightly different note, I tried reducing the size of the QTZ for
email by deleting patches not needed - such as images and stuff, but
the filesize didn't change at all!! I found I had to do a SAVE AS and
save to new file - but filesize only dropped a tiny bit then. So this
leads me to two additional questions:
- Do we need to occasionally 'compact' QTZ files to remove the deleted
patches from the file (similar to Flash - SAVE COMPACT)
- Is there a way to see a breakdown of what patches contribute how
much to filesize?
cheers,
memo.
_______________________________________________
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]
