View Full Version : Emitting speed from surface fluid emitter

04 April 2010, 07:07 AM
Im having a go at Duncan's sample scene where he uses a coil surface emitter to emit speed into fluid and create swirl by animating it with 'inherit velocity' on but Im failing miserably.

When viewing the velocity vectors on the surface emitter they want to point downwards, huh? And this doesnt change even after animating the emitter so that the inherit velocity should kick in. Actually it is because inherit velocity is on that there are downward velocities, but my understanding is that they should kick in only when the object is moving.

Anyone had success in reproducing this effect?

04 April 2010, 07:17 PM
Have you tried using max distance in the surface emitter? I did notice, after certain tweaks, particularly resolution, the down arrows can display, which seems to be a bug, however those arrows don't affect the fluid sim as long as the max distance is checked, until they contact.

04 April 2010, 08:28 PM
Yeah I had a play with that, but I still dont seem to get any 'inherit velocity' when I animate the emitter around, for example 'spin' it around. Maybe Im misunderstanding inherit velocity, I thought if I spin it around it would create some circular vectors?!

04 April 2010, 08:34 PM
Those downward vectors must be a bug.

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04 April 2010, 08:34 PM
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