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Particular Compositing

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Allen joaquinParticular Compositing
by on Mar 14, 2012 at 12:50:49 pm

Hello CreativeCow again.

I've been having some troubles compositing a Particle inside of AE and i was wondering if u had any idea of how to solve this problem.

If i recall properly i've heard or read somewhere (Probably on Redgiant site) that there's a way of compositing the particle in 3D with a "REAL" depth position. What i mean is for instance this.

When u create a new particle in this case i used a normal particle that follows the emitter (Light) and that Emitter it's parented to a null object. The particle won't work properly on the depth..

For instance the starting point it's 345,22, 300,356, 0,0 and my Shape it's at -210,027, 36,119, -95,521 wich is further in the back so when the particle it's at the first keyframe it should show a line (IN FRONT) of the shape and then show at the BACK of the shape.

I've been tweaking the "Visibility" settings for the particle but coulnd't figure out what's happening. Here's a quick drawing of what's happening (If the description above din't explain it properly ^^U)


Direct link To image better explanation: http://img846.imageshack.us/img846/2531/creativecowproblemallen.png

Thnx Again for your Help.


EDIT: forgot to mention that changing the layers order won't fix the problem it just will make it reverse. If u put it on top it will be on the back (THe particle) and if u put it on the back it will be on front. (The particle)


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Walter SoykaRe: Particular Compositing
by on Mar 14, 2012 at 1:09:31 pm

You want to use your shape layer as an obscuration layer (Particular > Visibility > Obscuration Layer).

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Allen joaquinRe: Particular Compositing
by on Mar 14, 2012 at 1:30:15 pm

No, i tryed that but din't fix the problem.

Here i leave the project file so u can take a look at it.


http://www.mediafire.com/?alz27hjbthcmh3j


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Tudor "Ted" JelescuRe: Particular Compositing
by on Mar 14, 2012 at 1:26:22 pm

Also, you do want your Particular layer to always be at the top, unless you have a very specific reason for wanting to break down the 3d space in AE.

Tudor "Ted" Jelescu
Senior VFX Artist


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Allen joaquinRe: Particular Compositing
by on Mar 14, 2012 at 1:32:35 pm

Yeah i got here the project

http://www.mediafire.com/?alz27hjbthcmh3j

i tryed obscuring it as well as setting the particle to be the last layer yet din't work. : (

What am i doing wrong?


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Walter SoykaRe: Particular Compositing
by on Mar 14, 2012 at 4:44:21 pm

I looked at your project.

You have to move the obscuration layer (243hxsx.png) beneath the Particular layer.

AE will then composite Particular over your person -- but Particular itself will not draw particles where they should be obscured by the person.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Allen joaquinRe: Particular Compositing
by on Mar 16, 2012 at 12:30:13 pm

Thank you, For some reason i was understanding something different.

Thank you for the help & PAtiente.


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Tudor "Ted" JelescuRe: Particular Compositing
by on Mar 14, 2012 at 6:37:33 pm

As I said- the Particular layer should be on top...

Tudor "Ted" Jelescu
Senior VFX Artist


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