Is there a way to adjust keyframes depending on clip length?

[michael37980596nnot]

For example a script or something to lets say apply opacity from 100 to 0 starting on 1st frame of clip and ending on last not having to do it manually because all the clips are different lenght?

[Mylenium]

Anything from expressions stored in an animation preset that can be applied in bulk to actual scripts that mass-apply or change properties and keyframes. Start by checking AEScripts.com.

Mylenium

[Dan Ebberts · Accepted solution]

As an example, this opacity expression would do what you're suggesting (I think):

linear(time,inPoint,outPoint,100,0)

[michael37980596nnot]

Could it be used for already made preset with a graph?

[Dan Ebberts]

I'm not sure what you mean by that.

[michael37980596nnot]

I have a premade transition with graph, could I somehow adjust the keyframes on first and last frame of every clip with adding such expression?

[Dan Ebberts]

Expressions can't manipulate keyframes, but in some specific cases, you can achieve the effect you want by manipulating the property's value. Whether you can do it and how you do it depends on the specific situation.

[Mathias Moehl]

In my (paid) extension Automation Blocks, the Better Fade Tool is a good option:

It can fade all selected layers in and out and takes different durations of the layers into account. It can also create fades which look better than basic opacity fades.

Note that the Better Fade Tool is part of Automation Blocks' Community Library. Here is the direct link to the Better Fade Tool. - just download the xml file and load it into Automation Blocks. It also works with the free (time-limited) trial of Automation Blocks.,