hello kevin,
thanks for your reply. i basically understand your idea. but i somehow dont understand the effect. i set up what u suggested:
1 stripe of width 30px reaching from comp top to comp bottom
3 masks with each of it having a width of comp’s width and a 100px height arranged from top to bottom with equal spaces of 80px between each of em so it seems there are 3 stripes laying around.
then i added the distortion>offset effect to the stripe layer and set one keyframe at the very beginning of the movie and one at the very end it to change the “Shift Center To Value” property. KF one hast the inital value of 288 and KF two i have a value of 2000. this workes but somehow strange. as i dont really understand the principle of this effect and the ae help also does not really help i dont know how to correctly set all up.
could you probably explain it in more detail to me or tell me where i can find a good explanation on how to use this effect? i am a beginner and not very experienced with ae’s expressions.
regards, mark