[Kay Bader]

hey,
that script thing did the trick!
thank you so much, you saved me a lot of work

[Kay Bader]

hi kevin,

thanks for your answer. your code creates the correct values as i would need them, but it doesnt really change the keyframes. clicking on them after running the expression still shows the old values. and unfortunatly i need that whole keyframe thing completely working because i have to play around with the interpolation later on. using animation -> keyframe-assistant -> turning expression to keyframes (might not be the correct words, i tried to translate) just puts a keyframe on every frame, so thats still useless too.

to make it a bit clearer why i want an expression to change the values and why i dont want to do it just manually:
i have like 10 different videos with 400-500 keyframes each. the keyframes are always on the same position, but each video has different values for them. i have the values i need to enter in a list, that is generated by a java program i wrote. so it would be very easy to modify that list in a way, that i can simply copy and paste it to the expression and have the values written over the keyframes, if i knew the commands. that would be far easier and timesaving than manually typing them in.

[Kay Bader]

thanks for the reply mike,

i dont think my problem has anything to do with hold frames.

i meant, that when i try to override existing keyframes by an expression, it doesnt seem to change the value of the keyframe itself.

i wrote something like:
if (time == key(1).time [10];
if (time == key(2).time [20];
etc…

what happened was: the interpolation values remained bound to the old keyframe values and only when that specific condition (if (time ==….) was true, the value was as given in the expression. and when taking a look in the diagram view, it showed the keyframes still having their old values.

i got some basic programming skills, but am completely new to ae expressions, so i dont know if what i am missing the right command words (something like setKey[time,value] would be great) or if it is just not possible to do.

what i need is some way to create keyframes or override allready existing keyframes using an expression.