fluid emitter surface, collide traps fluid!

#1

hello

I’m on a project, and I’m having fun and pain at the same time!

sorry to ask maybe stupid, but essential for me…

I have a surface emitter in a 3d container…
like a desert plane…

this surface is emitting dust… right?
but I want this to collide with the same surface, to make dust like slid on the surface not to penetrate int to it…

I found out that I need to copy the surface and make it collide with the original fluid …
but the fluid is kinda trapped in it, so I transformed the vertices of the duplicated surface and make a little bit smaller …
now some parts aren’t trapped and some are… and not a smooth collide at all.

so do I need to make the collide ground much smaller ( offset surface too much, so it is much lower than the original ground ) in order to get proper collide or I need to do something else?

thank you so much

#2

just being more clear,

How can I make a surface emitter to emit fluid only on one side of the surface not from two side of it?

with particle emission, It is more obvious that particles are emitted from one side of the surface then It is much easier to make a copy of the surface emitter and make It collide with the particles …

but in fluid surface emission I get fluid on both side of surface therefore on side traps the fluids … and not desirable for collision with the same technique…

well… hope somebody help me… :sad:

#3

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