Confetti start position

[Dan Ebberts]

Wow – that’s an old one. Mainly you’d just need to change the position expression.

// bottom to top would look like this:

minSpeed = 100; //minimum speed in y direction (pixels per second)
maxSpeed = 150;
maxDrift = 100; // maximum drift in x direction

seed = Math.round(effect(“Point Control”).param(“Point”)[0]);
age = effect(“Point Control”).param(“Point”)[1];
if(seed == 0){
[0,-10,0]
}else{
seedRandom(seed,true);
currSpeed = random(minSpeed,maxSpeed);
drift = random(-maxDrift,maxDrift);
origin = [random(0,thisComp.width),thisComp.height+10,0];
origin – [age*drift,age*currSpeed,0];
}

// left to right:

minSpeed = 100; //minimum speed in y direction (pixels per second)
maxSpeed = 150;
maxDrift = 100; // maximum drift in x direction

seed = Math.round(effect(“Point Control”).param(“Point”)[0]);
age = effect(“Point Control”).param(“Point”)[1];
if(seed == 0){
[0,-10,0]
}else{
seedRandom(seed,true);
currSpeed = random(minSpeed,maxSpeed);
drift = random(-maxDrift,maxDrift);
origin = [-10,random(0,thisComp.height),0];
origin + [age*currSpeed,age*drift,0];
}

// right to left:

minSpeed = 100; //minimum speed in y direction (pixels per second)
maxSpeed = 150;
maxDrift = 100; // maximum drift in x direction

seed = Math.round(effect(“Point Control”).param(“Point”)[0]);
age = effect(“Point Control”).param(“Point”)[1];
if(seed == 0){
[0,-10,0]
}else{
seedRandom(seed,true);
currSpeed = random(minSpeed,maxSpeed);
drift = random(-maxDrift,maxDrift);
origin = [thisComp.width + 10,random(0,thisComp.height),0];
origin – [age*currSpeed,age*drift,0];
}

You’ll probably need to bump up the life value in the Point Control expression for the horizontal versions.

Dan

[Richard White]

Hi Dan,

Thanks for the info. I’ll give it a go. I found the confetti expression on your web site. (Motionscript) Great site by the way.