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Making Rainbow Trails off of a PNG

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matthew chapmanMaking Rainbow Trails off of a PNG
by on Jan 4, 2013 at 1:18:23 am

Hi all-
Trying to make rainbow trails off of a simple PNG, in a 5 second comp.

I tried following these instructions from David Rickles and get nothing. no change to my comp whatsoever. I bought trapcode particular just for this.

http://forums.creativecow.net/thread/50/856087

What I have is a PNG of a mushroom


And what I want is the trails (done in photoshop)


I have tried both trapcode Particular and echo, and no real luck.

I would like to keep the color scheme of the trails too (more earthy tones than neon)

Any suggestions?

Thanks all!
matt



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Tom DaigonRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 1:47:01 am

You mean something like this? (AE and Particular)




or this



Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com





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matthew chapmanRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 2:02:25 am

I guess it would be more like the color of the first, but the detail of the second.

The mushroom also needs to spin as it goes. So for instance I set the PNG to 0 rotation, then moved the cursor to the end and set it to -1. Then I pre-composed the layer, but still didn't see any trails when using particular, and selecting the layer as the particle.

Thanks Tom!



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Tom DaigonRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 2:25:38 am

Glad to help Matthew. Heres the CS6 Project if you want to analyze it.

5153_mushroomfolder.zip

Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com





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matthew chapmanRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 3:06:25 am

Thanks Tom-
I am looking forward to it (have a few client things to handle for a min)
matt



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Darby EdelenRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 4:45:10 am

Alternatively, you can achieve some rainbow trail effects using:

Echo + Coloroma

or

CC Time Blend FX + Hue/Saturation

These methods both have what might be significant downsides* but they may also be exactly what you're looking for :) So here's my contribution in project file form for your perusal:

5154_shroomfolder.zip

I used solid colors in the Time Blend FX example but you could also tritone the image instead of using fill and then rotate the hue in the same fashion.

*The blending when using Echo isn't ideal. Time Blend FX uses previously cached frames and so sometimes misbehaves. It also is not compatible with render multiple frames simultaneously.

Darby Edelen


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matthew chapmanRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 5:29:16 am

Thanks Darby! I'll check them out.



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matthew chapmanRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 5:37:20 am

I really like the echo + colorama Darby, it's perfect.

Now I have done many things in AE, and maybe I am just not getting a basic concept, but How did you get the FX to apply to the layer without being a part of the comp itself.

Admittedly, AE is a hobby for me, not a full time job, but like I said I have made some pretty advanced comps in my time. Maybe I am missing something pretty basic?!

Chap



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matthew chapmanRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 5:41:35 am

Maybe I should be in beginner guys, BUT i tried applying echo to a pre-comped spinning Mushroom, and no luck. What the devil am I doing wrong?!

File here:

5155_shroomecho.aep.zip

I did watch the tutorial including nesting and precomposing. I did pre-compose the layer but the echo still shows no effect.

Argh


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Darby EdelenRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 6:32:33 am

[matthew chapman] " Maybe I should be in beginner guys, BUT i tried applying echo to a pre-comped spinning Mushroom, and no luck. What the devil am I doing wrong?!"

You need to apply your transformation keyframes inside the pre-comp.

Darby Edelen


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Vishesh AroraRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 5:58:31 am

matthew

I made the Rainbow trails using Particular. Hope this may help.





CS6 File: 5156_mushroomrainbowparticular.zip

Vishesh Arora
3D and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

Demo Reel(3D):







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Tudor "Ted" JelescuRe: Making Rainbow Trails off of a PNG
by on Jan 4, 2013 at 4:23:42 pm

You got some great advice and your project may be done, but here's my 2 cents:
Once you animate your mushroom layer, pre-comp leaving all attributes.
Duplicate precomp layer in Timeline as many times as you need to match the number of PSD layers.
Replace precomp on duplicated layers with the imported PSD layers of the colored mushroom by selecting and Alt drag over.
Offset the keyframes in each of the layers in the Timeline by a few frames from the one below and animate transparency if need be and you get a trail with the exact colors in your PSD file.

Tudor "Ted" Jelescu
Senior VFX Artist


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