08-11-2017, 07:28 PM
(This post was last modified: 09-11-2017, 09:48 AM by josemendez.)
(08-11-2017, 06:14 PM)josemendez Wrote: If you rotate the emitter around the Y axis while in 2D mode, particles will of course scatter around since you're emitting them outside of the XY plane where the simulation happens. 2D mode will only perform the simulation using 2 dimensions (X and Y), will completely ignore motion/forces/collisions in the Z axis. In 2D mode you're supposed to rotate the emitter in the Z axis only.
If you want to rotate the emitter both around the Y and the X axis but still want the particles to react to colliders around it in 3D, you need to use 3D mode. There's just no way around it.
But, I think simulate in local space should work for this type of needs. So, may I run the simulation in YZ or XZ with 3D mode but with 2D mode settings? I am trying to find a workaround, but if you say its not possible, than I will of course pursue with 3D mode. The reason that I dont want to use -3D is that particles do not follow surfaces like expressed in the Coanda effect. So the simulation seems not realistic. I have tried everything to make 3D more accurate but I couldnt. When the particles interact with surface they reflects as a sharp path. They do not bend and do not take into account viscosity parameter. This is why I need 2D, thanks a lot.