Strands orientation flickering when scaling emitter geometry

[Robert_XSI]

Hi Softimage Friends!

I have an emitter for emitting particles strands (not simulated, only modelling mode).
I would like to scale the emitter geometry during the strand animation (not simulated), but when I scale the emitter
the strands (and the particle orientation), flickers, but only in a very few frames, and only a very few particles.

If I do not scale it, it is fine.

I tried almost all possibilities, combinations, without result...

Could someone help me a little in this, I could post a simple scene, if needed.
Any workarounds, tips are also welcome.

Thanks!!
It is quite urgent, my deadline is nearing...
Robert

Here is a simple scene (frame 3-4 flickers)
https://dl.dropboxusercontent.com/u/514 ... licker.zip

[Tekano]

Hello Robert_XSI

you ICE tree was overly complicated to demonstrate effect so I did not touch it. If I wanted to do what you described it would be done like the way I attached. no flickering

I think you are sampling the wrong thing to emit from and also not taking into account the global matrix of the emitter. anyway here is one solution attached

best regards

[Robert_XSI]

Hello Robert_XSI

you ICE tree was overly complicated to demonstrate effect so I did not touch it. If I wanted to do what you described it would be done like the way I attached. no flickering

I think you are sampling the wrong thing to emit from and also not taking into account the global matrix of the emitter. anyway here is one solution attached

best regards

Thanks Tekano, your scene seems to work.

I think my Align Particle to Surface node made the problems...

Thanks
Robert