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how to switch off a layer ?

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Jerry Yang
how to switch off a layer ?
on Aug 1, 2012 at 12:43:39 am

is there a way to temporarily switch off a layer along the timeline?
say i want it to show for 3 sec and disapear for 5 sec and show again
for some time. or would you rather copy the layer and ajust each of its timespan? and what is a good approach to apply more effects on one layer on different time mark?


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Brian Charles
Re: how to switch off a layer ?
on Aug 1, 2012 at 12:48:05 am

[Jerry Yang] "say i want it to show for 3 sec and disapear for 5 sec and show again
for some time."


Keyframe the opacity value of the layer. Zero opacity = invisible layer. To avoid ramping the layer up and down use hold keyframes.

It sounds like you could benefit from some After Effects basic training.

See here:

http://www.videocopilot.net/basic/



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Jerry Yang
Re: how to switch off a layer ?
on Aug 1, 2012 at 12:56:39 am

thanks Brian, i should have explained it better as i dont just wanna play with opacity(for which i use strobe light effect for), but more for applying different effects or things on one layer. and i thought coply layers and ajust their timespan along the timeline is a bit tedious.


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Brian Charles
Re: how to switch off a layer ?
on Aug 1, 2012 at 1:08:33 am

What about an adjustment layer?

Or a Parented Null Object that controls the layer's effects?


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Jerry Yang
Re: how to switch off a layer ?
on Aug 1, 2012 at 1:14:17 am

great! i will dive in to those 2 topics, thanks for your pointers.


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Roland R. Kahlenberg
Re: how to switch off a layer ?
on Aug 1, 2012 at 2:12:52 am

Use Hold KFs on the Opacity property. Specifically, you only need two values, 100 and 0 to effectively switch on and off the layer's visibility. This is an elegant and easy option to apply.

HTH
RoRK

Intensive AE & Mocha Training in Singapore and Malaysia
Adobe ACE/ACI (version 7) & Imagineer Systems Inc Approved Mocha Trainer


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