[John Cuevas]

That is going to be really tough. First, when you shoot, move the sifter farther away from your green, you are apt to get less reflections. Also, check out this tutorial The Portal, from Andrew Kramer, starting around 5 minutes into it. He uses a pretty good technique for isolating green spill and removing it from your footage using keylight. I think it would help out a lot in getting the green off the sifter in your situation.

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

I don’t want to insult you but since you are new at this, I’l ask you are using the “stopwatch” to set the keyframes, right? You would set a keyframe at the start when you want the line to move down, set it another one when it’s fully extended, then another to keep it extended until it’s time to come back, finally a last one to retract it.

I’ve made a simple project to show the technique. 9073_lineexample.aep.zip

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

I would use a multiple shape layer and a repeater to create that look.

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

For the first thing about learning AE, here’s a great link with a collection of different online learning resources for AE. Number 4 has a couple of great free ones. Getting started with After Effects (CS4, CS5, CS5.5, CS6, & CC)

What technique are you using to make your line go down currently? I would probably create a solid and add a mask where I want my line, then just add the Generate stroke effect. Then just animate the stroke “End” parameter.

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

You are using bezier keyframes. These ease in & out and it’s causing overshoot in your case. Select the position keyframes, right click on one and choose Linear.

You can also adjust the movement by opening up the graph window and manually adjusting the ease in and out.

Here’s some more help… Why does my layer (camera) move back and forth between keyframes of equal value?

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

Wow, you have me totally stumped right now. I’ve been using Particular for years and years and never even noticed that before. Move it around and I can’t see any parameters being adjusted. I’ll keep trying and see what I find.

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

Can you do a screen grab and post it here. Also what version of particular are you using?

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

Check out these presets from Red Giant people-–lots of them are free.

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

Try combinations of “looping wallpaper”, “seamless background” “looping background”

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[John Cuevas]

Looping background, video wallpaper.

Both brought up results at videohive.

Johnny Cuevas, Editor
ThinkCK

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.