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dk66
01-30-2008, 08:21 AM
Hi

can anyone help me
I am working on a animation, where a oil flow is comming from a hole
in the oil flow there shall be small air bubbles in the beginning.

The oil flow is made of particles
emitter type is directional

The air bubbles is also particles
and amitter type is omni

my problem is that the air bubbles is both inside and outside the oilflow?

I know about the goal weight , and it can not solve the problem.

Regards

Kent Hansen
MAN Diesel

Wick3dParticle
02-01-2008, 09:38 PM
Hey DK,

Here is a quick idea for a cheat:

What if you rendered out the oil on its own pass with alpha, and the bubbles on another pass. Then in comp, use the oil as a mask to reveal only the bubbles within its mask.


Good Luck,

~Ilan

Aikiman
02-01-2008, 10:55 PM
or create a collision object and hide it so your air bubbles bounce off the object. For example create a cylinder object, reverse normals, make collide and then hide it.

optimus008
02-02-2008, 02:56 PM
You could also use a particle curve flow and emit them along a curve that follows your oil.

dk66
02-06-2008, 11:33 AM
Hey ...

Thanks, fore all the proposal
I Used the proposal from aikiman It works pretti good.
I created a cylinder and made it collide with the bubbles and also the Oil.
Then I deform the cylinder to spread the flow over the cover.
The test render looks good, now I try a test animation.

Tank You
I appreciate the help :thumbsup:

Kent H.

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02-06-2008, 11:33 AM
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