Simple 2D Spray

#1

Hello,

I’m trying to make a simple 2D spray effect with pflow or even with PArray that just has a spray that starts out small at the mouth and grows wider. I know i can achieve this by increasing the divergence degrees, the problem with that is that divergence seems to spread the spray in 360 degrees, thus if you are looking at the spray with an orthographic camera it appears that there a lot more particles towards teh center, and it is not an even spray. i just need the spread to occur in a 2D plane so ot maintains an even flow when seen from a 2D rthographic view.

Any advice is welcomed.

Thanks

#2

Sure, a quick example:

Emit from a plane (lets say 12x100 L segs2, W segs 22) with a bend modifier, mesh select a row of center verts.
Position Object, selected verts, lock to emitter.
Spawn to new event
Speed by Surface, using the plane object, set to speed by normals.

#3

Thanks Johnny Random,

i’m using Max 8 and I did not see a “set speed by normals” option in the Speed by surface event options. I did see a Direction option and set that to Surface Normals, and you know what, it works its pretty close to what I wanted, the particles are perpendicular to the plane shape I created and they are not quite exactly in a 2D plane, but its close enough, I think I can modify the pflow to what i need it to do from this point.

Thank you very much.

#4

You can also add a drag force with 0% along two axes and 100% along the third, which will stop any motion along a given axis.

#5

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