Brian Charles
Forum Replies Created
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Is this a shape you drew or a parametric one?
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Animate the first object along the entire path.
Place the Current Time Indicator in the Timeline at moment you want it to change to the other object and choose Edit> Split Layer.
Select the new split layer and Alt/Option drag the new image onto the layer to replace the footage the layer uses.
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[David Ghast] “If adobe didnt hire bottom of the barrel employees this sort of thing would never have been a problem…”
David, I understand your frustration but this kind of remark is uncalled for.
Despite its many faults, Adobe does produce good software and has very dedicated, customer oriented employees.
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[Todd Kopriva] “The reason that it exists at all is that we know that sometimes it is needed.”
In the real world, sometimes turns out to be more often than not. I’ve seen dozens and dozens of instances where this is the case.
Changing the Purge settings allows renders to continue that otherwise would fail. Hiding the item from the casual user is one thing, what I find silly is calling the prefs “Secret”.
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I did see a presentation on Adobe TV showing that you can integrate Flash and After Effects and add interaction, I can’t locate the exact movie now but I’m sure you can find it by searching here: https://tv.adobe.com/search/?q=After+Effects
and here:
https://tv.adobe.com/watch/max-2009-design/advanced-after-effects-workflows-for-flash-professional/
In After Effects you create Comp and Layer markers and set up Cue Points that can be read by Flash. The Cue Points can be either Event or Navigation cues and can pass parameters with values to ActionScript.
I’ve only used AE cue points for Flash video players to pause, loop or continue a video – but I’m certain with the appropriate scripting you could produce an interactive touch screen, since the interactivity relies entirely on Flash programming.
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OK, so you need to get After Effects to purge memory periodically.
You can do this be enabling the “Secret Preferences”, sounds idiotic I know, but Adobe has hidden a significant preference for render memory management.
Hold down the Shift Key when you select Preferences > General from the After Effects Menu.
This will reveal the “Secret Preferences”, set it to Purge every x# of frames, I have mine currently set to 30 frames but YMMV depending on the effects used and type of comp you are rendering.
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I assume you mean an actual interactive Touch Screen and not a simulation.
The answer is yes, with the addition of Flash and ActionScript to program the interactive features.
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Check the Activity Monitor to see whether you’re generating Page Outs, you may be starving After Effects of RAM. Also check Disk Activity to see what’s happening with I/0.
If you see Page Outs, the OS is using the drive as swap space when you’ve run out of RAM. Turn MP off or increase the RAM available to After Effects.
You can launch Activity Monitor while you render to see exactly what’s going on.
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Since you don’t provide much detail its difficult to imagine what you want to accomplish.
Are you able to add expression sliders to a control layer and modify the expression to take values from the slider?
Are the layer’s positions set relative to one another? If so use the layer index in the expression. something like this: (thisComp.layer(index-1).position + sliderValue)
You may want to provide more detail and post this to the Expressions forum.
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Dave’s right.
There is another reason that this dimensional rule of thumb exists. When NLE’s and computer-based video developed, the codecs were optimized for even numbers.
Before it was feasible to deliver video on the web I produced interactive CD-ROMs that had video content.
Most of these video’s were reduced to 320×240 (anyone remember CinePak? Ugh, Sorrenson?) I have a vague memory that QuickTime would compress and decompress playback better when each dimension was divisible by 4.