Timing Control, delaying an interpolation

karl4's picture

Hi,

I am fairly new at Quartz Composer. Looking at the various examples and web posts I've found out how to carry out various actions in response to a signal. So that parts of the composition can be held over till a later time.

However, I can't find any way to delay an interpolation, or to achieve the same thing some other way.

For example, a minute into the composition I want a sphere to move smoothly from bottom to top of the screen.

How can I do this? Sorry if this is a silly question

thanks karl

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gtoledo3's picture
Re: Timing Control, delaying an interpolation

What you want to do, is to control your interpolation via external time, namely the "patch time" patch, and do some subtraction to keep the interpolate from starting for x seconds. This example should make the concept clear, hopefully.

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patch time control.qtz2.78 KB

karl4's picture
Re: Timing Control, delaying an interpolation

That's excellent, just what I needed to know! - many thanks for responding so soon.

karl

dust's picture
Re: Timing Control, delaying an interpolation

You might want to try the time line patch to interpolat in a more friendly timebased linear fashion.

gtoledo3's picture
Re: Timing Control, delaying an interpolation

...or if you wish to gouge your eyes out with a spoon. :)

In all seriousness, the timelines is a cool patch. I don't find it as "friendly" though.

gtoledo3's picture
Re: Timing Control, delaying an interpolation

You're welcome!

dust's picture
Re: Timing Control, delaying an interpolation

yeah the timeline is bit strange if you substitute the word familiar with friendly then that is what i was trying to say. timeline is more like a timeline in keyframe software. i don't use the timeline but find it hard to explain conditional logic.

gtoledo3's picture
Re: Timing Control, delaying an interpolation

It's actually an EXTREMELY powerful patch... reminds me very much of doing automation curves in DAW's. Only thing is, I start wanting stuff like actual "timeline/track" editing... so I just stay away from it, since I don't like the method of interaction so much. It is pretty amazing though, in what it can do if you really want to get into it.

I personally like the value historian method for control of things like this, if I want something different than patch time/interpolate/lfo type of animation.

usefuldesign.au's picture
Re: Timing Control, delaying an interpolation

I just used Timeline patch for first time other day. I was put off it when I first saw it because it's not programmatically controllable unlike most other things in QC. It just felt like cheating or something. Anyway it is quite powerful… I still prefer having a triggered interpolate that goes from 0 to 1 in whatever curve shape and then feeding the result into multiple maths expression patches to drive various parameter changes concurrently. That way can keep value adding from same trigger.