I’m making a simulation of the blood stream of the heart and what I’d like to do is to simulate the path the blood takes inside of the heart with a particle system. I followed the tips of this thread http://blenderartists.org/forum/showthread.php?t=67494 , specifically this part:
Add a curve to your scene. Make the curve the parent of your particle emitter. (normal parent). Then select the curve and go to its Feilds and Deflections tab in the Physics buttons. Under field type select Curve Guide.
Now the particles will follow the curve. You can use max dist to control how many of the particles follow the curve. And you can use more than one curve guide.
The particles follow the path indeed, but so does the emmiter. How can I leave the emmiter static so that only particles follow a path ??
Thanks in advance
I think the trouble is that thread was for particle hair (AKA static particles). To the best of my rather limited particle knowledge, you would need to use Lattices to make animated particles follow a path.
FYI: You may want to add your question in the effects Support forum instead of the Tests forum.
Don’t parent the emitter mesh. Just have the guides there with the beginning of the curve in the appropriate location. The particles will figure it out.
If you use Max Dist, then you can have more than one guide, with varying levels of particles following each guide. Check out the blend. (For official/stable 2.45 release/old version of particles as well as the new SVN Jahka particles.)
YOU GUYS ARE AWESOME !!! THANKS A LOT FOR YOUR HELP !!!
I’ll post further questions in the effects section.
One more question:
How can I control the speed of the particles flowing along the path ??
check out the info here http://www.blender.org/documentation/htmlI/x9318.html
for the “pumping” motion of the bloodstream, use IPO curves.