So I have set up a particle emitter and a fluid sim, the emitter particles do not interact with the fluid even when I set the emitter as an obstacle, also tried setting the object as an obstacle but no luck. Can anyone help please, thanks.
There is no way to currently do this in Blender, as it takes a lot of RAM and computing time. In the future there may be support for this kind of thing in later versions of Blender. However, you can fake achieve a similar effect by subdividing the fluid a substantial amount, and using a dynamic paint modifier to produce waves on the surface. Add a dynamic canvas to the fluid (domain), and set the dynamic paint type to waves.Faked particle interaction Then set the particle emitter to have a dynamic brush. Set the paint source to your particle system like in this picture:Hope this helps!