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Old 06-05-2013, 03:30 PM   #1
Byteman3D
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Nezih Kanbur
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Help on particle flow problem.

I wonder if you can help figure out why the circled pflow particles move to the middle of the stick, where I choose to find the target object's selected faces, and selected the leftmost faces of the stick? It does work mostly, but 3 particles are out of control and move towards the center.

The rest of the particles are perfectly moving to the head of the stick and remain there.
I tried to put the parameter panels of all the important events.




addition: what is the particle selection on the modifier panel of Pflow (selection rollout) doing? Is there any way to remove those particles? (I tried the "delete particle" operator but always another particle appears and moves to the same spot. Those stupid spot has some sort of priority.

Last edited by Byteman3D : 06-05-2013 at 03:37 PM.
 
Old 06-05-2013, 07:42 PM   #2
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Dont know really can't tell what is going on, I can't seem to view a high res version of your screen cap.

Particle Selection is useful for any selection driven action like booleans, ie test out, delete, ect.
Particle Selection returns an integer value per particle 0 or 1 respectively.

So imagine having a box, if the particle is within the volume of the box, select it, once selected delete.
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Old 06-06-2013, 01:38 PM   #3
Byteman3D
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I might have resized while uploading image




http://we.tl/IXshSfgxDU

here is the file itself for Max 2014.
 
Old 06-07-2013, 05:19 PM   #4
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That is a symptom of using Find Target By Time. So those two particles just happen to be cast out in that direction, anybodies guess why they think there initial velocity is in that direction. Also using By Time it can be problematic, causing particles to "snap" to their final position with no intermediate frames or ease in.

How to fix it? Getting very specific complex movement with Find Target is a chore. Well you could at the very least try use Script Vector channel so your particles "know" where they need to end up. Secondly try tweaking the Find Target to either use speed or By Time using "Event Duration", it may help. Finally use a Lock and Bond in the final event instead of a position operator to lock the particles to the object. Sorry I don't know of an exact fix for that other than trying to build a data op specific to that issue.
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Old 06-07-2013, 05:19 PM   #5
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