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fell00

How can you add SOP Solver inside RBD Bullet Solver SOP?

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Hi,

Is this the way to add a SOP Solver in the new RBD Bullet Solver SOP?

I noticed that we have access to a lot of nodes inside it.

It says "wire pop forces into here" but not sure how to hook up a SOP Solver.

I'd like to set up some custom activation inside this RBD Bullet Solver SOP.

 

 

2021-02-28 23_26_00-Window.png

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you can put any slover in there that you'd use in Pre-Solve input of Rigid Body Solver DOP as that's where it's ultimately plugged in, so not just POP forces

you should be able to make your sop solver work the way you have it plugged in to affect your RBDs

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Thank you for the response.

This led me to the docs for the Rigid Body Solver.

Going to definitely try it out.

https://www.sidefx.com/docs/houdini/nodes/dop/rigidbodysolver.html

 

Quote

 

Pre-Solve

Microsolvers attached to this input will run before the main solve step. For example, a SOP Solver can be used to modfiy the object’s geometry, and POP force nodes can be used to apply forces to specific objects.

 

 

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you can also unlock and jump inside of Bullet Solver SOP to see how it's built

 

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Posted (edited)

Thanks, I found where it's connected to the pre-solve inside it.

I just hooked up a Sop Solver to the forces and can confirm it works like that.

I set some point attributes in a point wrangle in the Sop Solver, like active, deforming..  after a certain frame, and it works.

 

 

Edited by fell00

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