Jump to content
Sign in to follow this  
MadMax50

pump volume h18

Recommended Posts

Hello,

This is more of a general question about how to properly inject "pump" velocity in h18.

First, What excactly is the "pump" doing? Why can't I just bring in my "v" attribute . What is the difference between velocity and "pump" ?

Also, when I create a pump from the shelf tool under the populate containers tab. Houdini creates a Flip source to create the "pump" volume. Why is this?

Are there no pyro tools to create this "pump" volume?

I will attach some screenshots and my file.

Thank you

pump_h18.hipnc

pump_dops.jpg

pump_sops.jpg

Share this post


Link to post
Share on other sites

What you'd normally get out of a fluid source is pump (scalar) and pumpvel(vector) volumes, then you'd bring them in you DOP net using source volume initialized as pump, right? I guess what they wanted to do now is to simplify the naming. In 18 you can just add a velocity field that targets the vel field, and a pump field doing it's normal job of masking it. If you dive into, say, a smoke solver node, you should be able to find the node tree related to pump, and you should see that it usually refers to vel. Also, if you initialize Volume Source as a Pump, you should get a pump field and a v field targeting vel and masked by pump, since all pump is doing is adding velocity.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×