Particle Rotation on Birth

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Old 09 September 2008   #1
Particle Rotation on Birth

I am trying to emit a particle stream with zero speed that follows the rotation of an emitter object at birth and then freezes. I can get them to emit, but their rotation stays the same from the beginning.

Basically, I want to create an extrude, or smear, effect from animated text using a lofted instance of the text as the particle stream.

An example of what I'm trying to achieve is here:

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Old 09 September 2008   #2
I would try using a spawn operator.

Lock the particles to your position object operator then spawn with 0% inherited speed.
poof ~>Vimeo<~
Old 09 September 2008   #3
You may also be better served using the path deform modifier.

Create your shape and give it a high segment count, in the case of a text shape use the extrude modifier and give the shape 100 segments, then add a pathdeform modifier. Create a path to follow and add that path to the PD mod then animate the stretch.

This way you won't get a "step" or moire pattern during render.
poof ~>Vimeo<~

Last edited by JohnnyRandom : 09 September 2008 at 09:57 PM.
Old 09 September 2008   #4
Thanks, I just tried the spawn operator, and am having the same results. I will keep at it, tho, as it seems logical.

Also, I was going to do the stretch along the path deform, but I need my text emitter to also spin on axis which is the only reason I'm not doing it that way...

Ideally there'd be an animated volume sweep modifier that'd create geometry based on the outside volume shape created by an animated surface, in this case the text....
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Old 09 September 2008   #5
Here is a test scene. it contains both a particle spawn and the path deform. The particle flow is off, you'll have to turn it on. It may be of some help.

Attached Files
File Type: zip (27.6 KB, 21 views)
poof ~>Vimeo<~
Old 09 September 2008   #6
Thumbs up

Ah! I copied the Shape(cube) into the last event, and it works smearingly!!

Thank you VERY much!

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Old 09 September 2008   #7

I forgot to mention, there is a great inexpensive plugin that does this and a few other great trail type effects (if you do this type of stuff with any type of regularity), it is called Ghost Trails and can be found here:
poof ~>Vimeo<~
Old 09 September 2008   #8
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