Flight through chalk

Hi, well this might be an odd request :slight_smile:
I am trying to animate a flight through a Rebreather (scuba diving gear).
For this I need to animate a flight through some fine grained substance (in this case chalk).

Well you can imagine it as a tube full of cat litter. :smiley:
Small pieces of chalk in random positions.
And I would like to animate a flight through it.

Currently I have no idea how to do this, as to get a tiny bit of accuracy I would need to have a couple of thousand pieces of chalk in it.

I thought about particles for this, but I can not figure out how to give them some dimension (I only got pixelsized particles so far).

Maybe someone of you has a good idea, or at least a pointer to look further into it.

Any help is appreciated.

Thanks and best regards,

CarsteN

http://wiki.blender.org/index.php/Manual/Particles

I’d love to help you myself, but if you scroll down, you can read how to do it. (I actually did it only once).

Oh, boy I am so blind…
Thanks for the pointer.

Cheers, CarsteN

I tried it now, but the result is not really what I wanted.
Either that or I have not been able to tweak the particle system properly.

E.g. I wanted to evenly fill a cube with some very small cylinders.
Make the cube with an edge length of 1 and the cylinders with radius 0.01 and length of 0.02.
That way you should be able to fit a couple of thousand cylinders in the cube
.

I made the cube the emitter and emitted a couple of thousand cylinders.
Works pretty good, BUT the middle of the cube gets a lot more cylinders than the rest.
AND on each strand the cylinders did not rotate randomly, they all looked aligned.
I would like the cube to be filled evenly with randomly rotated cylinders.

Any idea how to do that?

Thanks and best regards,

CarsteN

You could have a look at this thread. It might help.
http://blenderartists.org/forum/showthread.php?t=91647&highlight=pills

Alan

BINGO, that is exactly what I was looking for.
And sounds fairly easy, even though pretty hefty on the CPU :slight_smile:

Thank you very much.