Inspiring

Question

Precomposed duration

Forum|Forum|2 years ago
April 7, 2023
2 replies
947 views

I use a layer.duration expression and the composition where this layer is defined is in a master composition.

If I stretch or reduce the precomp in master comp the duration (thisLayer.duration) does not change.

How can I get the real duration setup in master comp ?

Thanks for the help

Expressions

This topic has been closed for replies.

R

Rick Gerard

Community Expert

Before we can give you meaningful suggestions we need to see your timeline with modified properties and have a detailed workflow description.

Creating MOGRTs with fixed animations at the head and tail but allowing time changes in Premiere Pro are created by creating Protected regions in the timeline by using Markers. I do it all the time.

J

JeanK77Author

Inspiring

Many thanks

I joind my very simple Ae project, and the "renamed" mogrt file (I rename it to .txt).

(I use the last version of french CC)

There is only one Comp (set to 10seconds 1920*1080 25 ips)

with 4 main parameters defined in number of frames.

PreRoll and FadIn define the head animation and covered by a protected region of 5seconds

OutRoll and fadOut define the tail animation and covered by protected region of 2 seconds

Workflow:

Generate the mogrt file

import in Premiere

Set a new sequence (1920*1080 25ips) and drop the mogrt in the sequence

The new Pr element has a duration of 10seconds, as defined in AE.

Set the 4 main mogrt parameters to max

The sum of protected regions is 7 seconds, but I can trim the element to any time BELOW this protected regions

So the animations are not correct any more. Is there a way to prevent this, inform Pr user, or have any action in Ae expressions ?

My initial idea was to check the Ae comp duration but the trim done in Pr are not back feeded to Ae.

Is there a solution ? (Hard limiting the Pr trim to the sum of protected regions....)

Mogrt_-_Générique.zip

R

Rick Gerard

Community Expert

There is no option to set a minimum length for a MOGRT. If you slide the out point of the graphic back far enough to cut off the animatiions, they will be cut off.

The only option you have to speed up an animatiion would be to set a speed parameter with a slider and use an expression based on time to control the movement.

For example if you used this expression to tie the speed of an animation to a slider, you may be able to re-adjust the timing in Premiere Pro.

t = (time - inPoint) / thisComp.frameDuration;
s = effect("Slider Control")("Slider");
x = easeIn(t, 0, s, 0, thisComp.width/2 );
[x, value[1]]

I almost always use the layer in and out point to control animations with expressions. With this expression, if the slider is set to 0, the layer does not move. If the slider is set to 20, it takes 20 frames to move from the left edge of the comp to the center. You could throw SourceRectAtTime() into the mix to have a text or shape layer start completely off-screen or start and end at any percentage of the comp width or height.

Add that Slider Control to the Extended Graphics panel and the MOGRT. I think this is the solution you are looking for.

ShiveringCactus

Community Expert

I think you need to use thisLayer.inPoint and thisLayer.outPoint rather than duration. I know markers can have a duration, and a quick google only shows duration being used in that context.

J

JeanK77Author

Inspiring

Thanks for your reply

I tried both in and outpoints. The inPoint stucks on 0 what ever I do and the outPoint is allways equal to duration.

I must miss somthing !!

ShiveringCactus

Community Expert

Can you post a screenshot and maybe an explanation of what you're trying to achieve? It might be that Responsive Design - Time is what you're actually after, that solves a lot of precomp time issues.

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