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Particular - Motion Path Light with a Light Emitter?

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Max Jackson
Particular - Motion Path Light with a Light Emitter?
on Oct 10, 2012 at 5:59:20 am

Hi CC,

I've built a kind of cool looking beanstalk snake-like particle emitter from a light.

My dilemma is that I need this light emitter to follow a motion path. So now I have two lights, one as an emitter and one as a motion path.

How can something like this work so my two lights aren't "crossing the streams"? I put the two together and am currently getting a confused system.

Thanks a bunch for any feedback.


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Vishesh Arora
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 6:33:55 am

Can you upload the image of what you want so that it will be more clear?

Vishesh Arora
VFX and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

Demo Reel(3D):







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Max Jackson
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 6:53:04 am

I should do that from now on huh?

Here's a picture that kind of shows what I'm trying to do.

I have a light emitter growing out a "vine" from a light at about 108 degrees. I'd like the tip of the tentacle to follow a point so I figure a motion path is the way to go but I'm finding a disconnect on how to do that using two lights.

Is this possible? Thanks for any suggestions! :)



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Vishesh Arora
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 7:08:21 am

May be this tutorial will help:

http://www.redgiantsoftware.com/videos/quicktips/item/297/

You can use the Particular Preset for the veins you are going to create.

Vishesh Arora
VFX and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

Demo Reel(3D):







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Max Jackson
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 7:20:03 am

That looks really cool, but I'm trying to use a light as an emitter and as a motion path. Also, I'm just using one vein that I'm going to spread to fill the light in the window. Am I just over-doing things? It seems from what I'm reading and watching that I can't do both. In that tutorial Harry Frank has a Motion Path sequence but it moves along with the path.

I'm trying to emit particles from one point and then use another point as the tip that leads the tentacle. Am what I'm doing trying to use two light emitters make sense?

Either way that tutorial looks amazing. Love what he's doing with the shading, thanks for the reference. I'll have to check it out.

Thanks Vishesh!
-maX


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Vishesh Arora
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 7:35:01 am

I don't know about using Two Light Emitters in this way.

If you use two lights at a time, then both of them will emit particles at the same time.

You want one(at floor) light to emit particles and the Other light to give the direction to the particles emitted by light 1? Am I right?

Vishesh Arora
VFX and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

Demo Reel(3D):







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Max Jackson
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 7:42:00 am

Yes, exactly. I'm trying to emit from one light source and use a second one a motion guide. Cuz as I understand it I need a light to do both really. I don't want my emitter to follow the motion path. I want it to stay in one place but have the front of the particle stream follow a point.

Know what I mean? What's an easy way to do that?

Thanks Vishesh, :)
-maX


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Vishesh Arora
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 8:07:41 am

Try to use One light with life and Air resistance to a high value so the particles will remain to their original position.

Animate the light from floor to where you want to move it.

Can't say anything about using a light to give direction to the particles emitted from another light.

Vishesh Arora
VFX and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

Demo Reel(3D):







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Max Jackson
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 8:14:25 am

Cool man, will do. I'm also thinking I might trying experimenting with null objects but it's late over here.

Thanks again!


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Vishesh Arora
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 8:24:03 am

Anytime Max

But I too will do some experiments on how to achieve this with two lights. Will let you know if something good will come out.

Vishesh Arora
VFX and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

Demo Reel(3D):







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John Cuevas
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 11:33:16 am

I don't know of any way to have Particular emit from one point and then follow a different light. Check out this Tutorial where he uses wind to give direction to the particles.

Johnny Cuevas, Editor
Thinkck.com

"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.


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Max Jackson
Re: Particular - Controlling/Guiding a point from an Emitter?
on Oct 10, 2012 at 5:24:57 pm

Cool, will do after work.

Thanks John!


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