i just got back from a firework display for the 4th of july and i was trying to recreate fireworks in blender. i have it so that it shoots off one particle and it splits into 500 other ones. my problem is that when it splits, they split into the shape of a cube… i’ve had this problem before and i cannot figure it out. my emmitter is a plane with 3 of the 4 verticies deleted.
Firstly, try to increase the rand value (one of the purple buttons) to make it more random and get out of the cube shape. If that doesn’t work, here is a url to a fireworks tutorial. its probably not exactly what you mean but there are some useful techniques in there for good fireworks (eg. the dupliverting of lamps for more realism)…
This is what I got.
For me it is a problem of using a single vertex.
Probably we have to wait for Theeth to explain how the particles are calculated to give the cubic shape of the cloud when using a single vertex as emitter.
i don’t understand how it could still be cube shaped with an icosphere.
Is your particle emitter (the icosphere) parented to the original emitter yet?
If it is, try it on its own.
Go into edit mode, select all the verts and click the hash button. That fixes some problems with particles.
Maybe you could post a .blend if the problem persists.
You want to make the flying rocket (i.e. orange) and the explosion (i.e. blue) with one particle effect.
(I only talked about the explosion).
In this case the discussion about the icosphere is meaningless. Your (rocket)particle behaves like a single vertex emitter in this case and it doesn’t matter if it was launched from a single vertex or an icosphere. Obviously one always gets the cube-shaped particle cloud.
The particle child method only works kind of good with a few children.
For your problem I’d suggest an animated single vertex as rocket and an icosphere particle emitter as explosion (none or only a few particle children).
Color changes for the explosion done with a material Ipo.
Don’t know any further. :-?
That’s only a guess, but I would say that it is because the Rand function does not randomize a vector of a given length but only adds a random number on each axis not exceeding the Rand value. Hence the cube shape…
That should be easy to change.