On Sat, Nov 6, 2010 at 5:19 PM, Jerry Smith <[email protected]> wrote:
> Maybe this is an issue I don't get re: pulling / pushing the processing > chain, but in this test comp why does the first multiplexer index not > switch > after first mouse click whereas the second one works as I would expect? And > how can i get the first to behave like the second? > > I'm not 100% sure how to answer your question, but I can describe what is happening in your composition. When the composition first open, all input values are 0. When you hit Left Button, you're changing index values on both multiplexers simultaneously. After you hit Left Button once, you will see that the Number Multiplexer that outputs to the secondary Number Multiplexer still has an Index Value of 1. This is because when you released the Left Button, the Source Index on the Number Multiplexer that is directly connected to the Clear shifts to 0. This effectively stops evaluation for that portion of the chain, since the Clear isn't making any calls upstream to make that update, because Index is now 0 on the Number Multiplexer directly attached. So, no calls can be made to it anymore to update the ports to 0. If you want to force evaluation on that part of the chain, you can connect it to a Renderer directly, as in the attachment, so that whether or not the Left Button is up or down, there's a Consumer/Render patch that "needs" it's value to "do something". Hope that makes sense. You know, you can actually do a search for the patents on QC, and it's pretty informative on how it works as far as really conceptualizing what's going on, if you're the type that doesn't mind reading those things. -GT > _______________________________________________ > 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/gtoledo3%40gmail.com > > This email sent to [email protected] > -- George Toledo [email protected] www.georgetoledo.com The information contained in this E-mail and any attachments may be confidential. If you have received this E-mail in error, please notify us immediately by telephone or return E-mail. You should not use or disclose the contents of this E-mail or any of the attachments for any purpose or to any persons.
multiplexer_test_force_evaluation.qtz
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