Initial velocity to an object in volume fluids

[dynamoanders]

Hi Guys.

I'm suupernew to Houdini, and so far I think it´s amazing (coming from Maya/3Ds MAX/RealFlow/Nuke etc).

I was wondering how you would go about to get a initial velocity to an fluid created from an object in volume fluids?

Also, is there a way to control where the fluid starts on an object? I know in Maya I would mask it with an ramp to tell it where to start?

Thanks in advance

//Anders

[mawi]

Add velocity vectors to your source and in the solver/sources set velocity type to point Velocity.

Just remember to add velocity vectors before the node you are sourcing.

initialVel.hip

[dynamoanders]

Aaah, sweet. I'm going to try it at once.

Thanks for the fast reply and scene, awsome!

[stevenong]

Hi,

Please reply to your post over at SESI forum and point them here. It's best to reduce cross-posting as most visit both forums.

Cheers!

steven

[dynamoanders]

Yep. I will do that.

My first post here.. But will do that for shure.

And, tried it and it worked like a charm with the velocity.

I'm sitting and screaming of joy working with Houdini (when I'm not tearing the little hair I have left 'cause I'm used to different software)

[dynamoanders]

Ok, One more question.

If I do want to add velocity, but without continous emitting from the object, just on the first frame, hence emitting "one" object with an initial velocity ?

//Anders

[stevenong]

In the attached hip file by mawi, either keyframe or use an expression, for example, $FF < 3, in the Activation parameter of the sphere_object1_source DOP.

This will set the sphere_object1 DOP object as a source for only one frame or in other words, set the Source Relationship for one frame then turn it off.

Cheers!

steven

[dynamoanders]

Aahhh, sweet.

That works perfekt