Thank you very much Keith. This is exactly the kind of thing I was looking for to solve this particular problem. I edited it to animate the mask image, animating the crop x value using a maths function connected to the 0 to 1 scale.
Achim: I have been using the Sample & Hold patch quite a lot, but my main problem has been generating the point of sampling. I'll certainly look into the Swipe patch, there are so many patches in Quartz that it's impossible to just stumble upon them without a guide. Could you please explain to me what a state machine is, and how to create it? I was thinking about trying to make an animation queuing system, but I think it's completely beyond me. Especially as I come a background of PHP programming (scripting if you will). Regards, Charlie On 1 November 2010 22:49, Keith Lang <[email protected]> wrote: > Hi Charlie, > > This is how I would do it with the minimum of patches and no > JavaScript (not that it should be avoided). > > I'm using a Smooth patch here for the most robust interaction, where > potentially the user is changing input values again while the > transition is still taking place. > > Basically, the patch > 1. watches for a change in input > 2. Sets target alpha to 0 > 3. Alpha is smoothed down to 0 > 4. When smoothed output hits 0, the text is updated to match current > input using Sample & Hold (as per Achim's suggestion) > 5. Target alpha is set to 1 > 6. Alpha smoothly moves back to 1 > > I'm not sure what you were doing with the mask etc, I'll leave that > bit up to you. > > > Keith > > > On Tue, Nov 2, 2010 at 6:19 AM, Achim Breidenbach <[email protected]> wrote: > > Hi Charlie, > > > > just my two cents: > > > > - have a look at the "Sample & Hold" patch, which can help you keeping > the old string as long as you needed to fade it out, then switching to the > new text from your string input patch. > > > > - you properly don't need to create your own mask with the gradient, try > to apply the "Swipe" patch on your text image. > > > > - maybe it would be much simpler to implement a state machine in a > JavaScript patch instead of doing all the transition controlling in pure QC. > > > > Best, > > > > Achim Breidenbach > > Boinx Software > > > > > > On 01.11.2010, at 17:49, Charlie Francis wrote: > > > >> Hi, > >> > >> I'm currently trying to create a composition that will animate a mask > over an image, change the text supplied to that image, and then animate the > mask back. All on a command input. > >> > >> I have created a composition that does this, but I don't feel that it is > Robust enough, and it flickers when the text changes. > >> The way I would like this to happen is that the first text string is > stored in a multiplexer as a default value, any time the update string is > left blank, the animation fades out and replaces it with default value. > >> If the string is updated with another value, then the current string > should fade out and then be replaced by the new string. > >> > >> I've attached a copy of the test composition I've been working on. I'm > still a big beginner in this Quartz Animation stuff, so would like to know > some guidelines on how I can improve my skills! And better ways of setting > up this type of 'command, fire animation, fire animation, end' stack > >> > >> Regards, > >> Charlie > >> <fade_animation.qtz> _______________________________________________ > >> 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/achim%40boinx.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/songcarver%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/charlief%40cellcastonline.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]
