expressions help…

[Dan Ebberts]

Something like this might do it:

minDelay = 3;  // minimum delay (frames)
maxDelay = 15; // maximum delay (franes)
maxX = 5; // max x offset (pixels)
maxY = 15 // max y offset (pixels)

end = 0;
j = 0;
while ( time >= end){
 j ++;
 seedRandom(j,true);
 end += random(minDelay,maxDelay)*thisComp.frameDuration;
}
value + random([-maxX,-maxY],[maxX,maxY]);

Dan

[Chemix Ferreiro]

WOW !!!!! Thanks a lot Dan, I now understand how little I know about expressions !!!!!

Anyhow, AAF is giving me an expression error regarding the “seedRandom” line when I try to copy/paste your expression on the position track…

using AAF 5.5 could be the issue?

Thanks again

BUNKER studio
“edit in paradise”

[Chemix Ferreiro]

Ok, never mind my reply… I just looked through the manual and your MOTIONSCRIPT page and finally figured it out

THANKS a LOT again for your help.

Chemix
Canary Islands

BUNKER studio
“edit in paradise”

[Dan Ebberts]

This version should be 5.5 friendly (didn’t try it though):

minDelay = 3;  // minimum delay (frames)
maxDelay = 15; // maximum delay (franes)
maxX = 5; // max x offset (pixels)
maxY = 15 // max y offset (pixels)

end = 0;
j = 0;
while ( time >= end){
 j ++;
 seed_random(j,true);
 end += random(minDelay,maxDelay)*this_comp.frame_duration;
}
value + random([-maxX,-maxY],[maxX,maxY]);

Dan

[Chemix Ferreiro]

Yes sir, that’s the one. I tried it and works fine. Now it’s time to fiddle with parameters and get the results.

If you ever come down to Canary Islands, don’t hesitate to contact me first, I’ll show you around.

Chemi Ferreiro

BUNKER studio

BUNKER studio
“edit in paradise”