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sprite transparency hello everyone, I have asked this question some time ago in the vidvox forum. I might go into some details at explaining my problem again. I have an image of some birds sitting on a power line. I cut out the birds and saved them as a png file with a transparent background. I want to overlay them to original image. the final composition for vdmx should be able to zoom in to the "cut out-picture. thus, the birds will change size, while the rest of the picture remains just a still. the problem is quite simple: I want to overlay a png or psd file wit a transparent background. I have tried to change the blending of the sprite to OVER. and it doesn't work. Someone has sent me his qtz-file, which worked fine on his laptop, but not on mine. I don't understand why this happens. The only difference was the version of QC. On his system, her was running some older version. I am running QC 4 with snow leopard. Are there known issues with QC4 and snow leopard? Is there some way to go back to QC 3 (but keep snow leopard)? has anyone suggestions for how to solve this problem? best, moorooduc
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Do you perchance have an old version of Kineme GLTools installed (check in
[your home directory]/Library/Graphics/Quartz Composer Patches/and/Library/Graphics/Quartz Composer Patches)?Improper compositing is a known issue with earlier versions (1.2 and earlier, I believe). Replace it with the latest version, 1.6 at the moment.
Just noticed that GL tools 1.6 is still named as 1.5 ???
Changes since 1.5
not named. version number is a few lines higher.
No it is: when you download/install version 1.6 it is still named 1.5.
It's named correctly in the plugin bundle's Info.plist (which is displayed by Finder). Where do you see the incorrect version?
There is a bug in the finder which does not always display the proper versions if you replace a bundle in the same directory and little changes in it. I see this all the time doing dev work. Move it out of the folder to a different one, new version. Move the same bundle back, old version. Stupid caching. Ha. Anyway maybe thats your issue?
thanks smokris, this worked!! but of course other problems occurs now. when I load me qtz into VDMX I have something like a 'trail'-effect of every movement. I don't know what causes it. maybe, I should just update all my kineme plugins. can I just delete everything in the QC-patches and QC-plugins folder? and then download/install everything again (sorry about this newbie question). ,moorooduc
I haven't used VDMX much, but often trails appear because the rendering context hasn't been cleared prior to drawing. Try inserting a
Clear(orGradientor any other renderer that overwrites the entire screen) on the first layer of your composition.thanks smokris. I didn't see the obvious: my composition was missing the clear patch. ah!!! all good now. (but I will be back with more newbie questions soon)
It's when I get info in finder, it's like Vade says I guess.
I had issues with contradictory version info a year or so ago with GL Tools. One earlier version of GLTools didn't bundle a version number that showed in get info either, so I guess Vade's comment explains why that was and maybe why I was getting the confusing answers when I swapped different builds of the (unofficial api) plug-in.