mouth-animation, interpolate keyframes from precomp (with framesToTime) without playing other frames

[LeGorg]

Hello there,

i am animating a character. In a pre-comp i set 10 different mouthpositions every 25th frame. There are many pixelbased layers from Photoshop which i transformed with puppetpins into every single position (like "O", "AH", laughing, etc.).

In the main composition i enabled timeremapping at this pre-comp and gave it a slidereffect.

mouth=effect("Slider Control")("Slider")

framesToTime(mouth*25)

So i am able to jump to every single mouthposition in the precomp.

But when i want to interpolate from position 1 to position 4 in my precomp it also animates position 2 and 3, for sure.

When i use hold frames it directly jumps to the wanted frame, but then i am missing the linear interpolation and the animation.

So i am searching for a possibility to interpolate from 1 to 4 by skipping position 2 and 3.

Any ideas?

Range of first 4 shapes/position (Zustand = state)

the Precomp in the main comp.

[Mylenium]

Wäre sinnvoll, wenn du mal deinen Thread im deutschen Forum aufsuchst, anstatt hier noch einen Thread in schlechtem Englisch aufzumachen. Die Antwort bleibt ohnehin die gleiche - Hilfe lesen --> Hold Keyframes.

Mylenium

[LeGorg]

Danke für die Antwort und sorry für das schlechte Englisch.
Hold Keyframe ist meine Backup-Lösung. Aber dann wird es eben leider nur eine Abfolge von Einzelbildern und es wird nix interpoliert.

[Mathias Moehl]

Ja, Interpolation ist nur möglich, wenn du in der Precomp nicht nur jeden einzelnen Zustand sondern jeden möglichen Übergang von einem Zustand zu jedem anderen hast. Das würde jede Menge Kopien aller Zustände bedeuten und schell sehr chaotisch werden.

Übrigens: für die Animation des Mundes kann mein Tool Auto Lip-Sync oft eine Menge Zeit und Arbeit sparen (hilft dir bei dem Problem der Interpolation aber auch nicht weiter)

Auto Lip-Sync - aescripts + aeplugins - aescripts.com

[Dave_LaRonde]

I agree with Mylenium.  I know of no way to modify an expression to accommodate instantaneous change.  To do that, you must rely on Hold keyframes.  But you can also mix Hold keyframes and keyframes with other interpolations.  You just need to learn their behavior when you do so.

[ericsten]

Hey Deepongi, only way I can think to accomplish this is that instead of using time-remapping, you setup a linear slide with variables based off of index values that you can assign to two value sliders. I've set up a basic example in this project.

https://www.dropbox.com/s/1sspaw0fozayc2l/Slide%20Between%20Multiple%20Values.aep?dl=0

Effectively it's a box with 5 "Transform" effects on it that are all turned off, each has a unique Position Value and are named sequentially "T1", "T2"..."T5".

Then in the actual layer Position there is an expression that outputs value based on 3 sliders in the master comp.

Slider 1 (S) = 0-100 for interpolating between positions

Slider 2 (V1) = Value of which position is "Position 1"

Slider 3 (V2) = Value of which position is "Position 2"

Then two variables that give the various T1-T5 position values based on sliders 2&3.

P1=effect("T"+V1)("Position")

P2=effect("T"+V2)("Position")

Final output is a linear slide between P1 & P2 based on "S" slider, this gives you a keyframe controlled interpolation between your values.

linear(S,0,100,P1,P2)

This is a very basic example of the effect, however it does give you interpolation between separate values.

Hope this helps