Forums Technical Discussion How to have multiple RBD objects interact with a FLIP?

How to have multiple RBD objects interact with a FLIP?

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OliviaV
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1 posts
Joined: March 2022
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Hello, I have a major issue with my Houdini Sim. I am new to the program, and am stuck.



I want multiple small hearts to drop into liquid. I can only get one to work.
How would I go about having multiple drop in? (I want one heart to spawn every 24 frames)



This is the switch system that makes multiple hearts spawn.
Is there anyway I can combine these nodes with my DOP?

As far as I can see, no one else has released a tutorial on this, so finding the right resources for specific help has been incredibly difficult.


Here is the project.
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And here are the models needed.
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Thank you to anyone who has a solution.

Attachments:
DOP_workingWithOneHeroRBD.PNG (25.7 KB)
nodesThatMultiplyMyObjectAndMakeThemRBD.PNG (34.6 KB)
Cocktail_Glass_GEO_noStand_ThickerRim.fbx (588.1 KB)
Heart_Bead_GEO_reduced.fbx (95.6 KB)
Glass_Splash_PleaseHelp.hipnc (1.2 MB)

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mrCatfish
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Joined: Dec. 2006
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If you keyframe the "Creation Frame" and set object name to $OS$F, it will work.

Note that "creation frame" is a list of frames, it is not on/off. So what I did was add a channel, and set frame 1 to a value of 1, frame 7 to a value of 7, frame 18 to a value of 18, etc. You can then box-select all keyframes and set to "constant" slope.
Edited by mrCatfish - March 22, 2022 13:37:21

Attachments:
Screenshot from 2022-03-22 13-35-38.png (125.3 KB)

Sean Lewkiw
CG Supervisor
Machine FX - Cinesite MTL
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