Thanks Chris! Out of curiosity, if you're booted in Leopard, I wonder if the Constant Color stops working there as well (I will find out soon enough anyway, but it's still nice to know if it's some weird GPU specific thing).
I knew the CI route would work, because I had made some kernels that made concentric rings that had alpha black, which looked fine. I appreciate you including that patch. I didn't originally run into this issue with the qtz that I posted, but with a kind of masking setup. I can think of a couple of other ways of mitigating this besides the CI Kernel that I already had in the bag, but that's probably a sweet one (though I will need to retrofit it a little bit with some scale and transform stuff). I would just like to be able to understand if there is any kind of paradigm that would make that be expected behavior. It doesn't seem like there's any advantage to it, and it is way more natural that people would grab the constant color patch before thinking of using special kernel. I don't like seeing things pop-up that I think that functionally inconsistent. Mind you, no complaints or whining on my part about this. What would be ideal is to learn if there is actually a functional aspect of this that I'm overlooking. -George Toledo On Tue, Oct 27, 2009 at 5:35 AM, Chris Wood <[email protected]> wrote: > Not sure about your issue there, can't try it at the moment, but I > made a CI Filter to replace the Constant Color patch. It's pretty much > the same, but has size inputs so you can directly output a fixed size > image of a certain colour. I'm pretty sure it'll work with > black/transparent too. > > Chris > > > 2009/10/27 George Toledo <[email protected]>: >> Is it not expected that the Sprite in the attached composition would >> "disappear", when the Constant Color patch is set to pure Alpha black, >> and the blend mode is in Over? Also, it seems as though it should look >> "black" if I was to place the blend mode to "Over", but this returns >> no image output from the Constant Color. >> >> In short, if the color value of the Constant Color is set to 0,0,0,0, >> it no longer outputs an image; it shuts down. This test is in Snow >> Leopard, 10.6.1. It would be great to know if this is happening to >> others, or if anyone has ran into this. >> >> I can see an argument for this behavior, but I don't believe it to be >> correct for a wide range of usage scenarios. Changing the actual color >> of the Sprite to reflect the same color values results in expected >> behavior (translucent black at 0,0,0,0.1, and "nothing" at 0,0,0,0). >> >> -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/psonice%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]
