Houdini 21.0.440 / Pop Axis Force Guide not showing.

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As the title suggests, when diving into the vellum solver and adjusting the Pop Axis Force type / parameters I can't seem to find a way to get the proper guide(s) to display.

Unsure if I may have disabled something that may be hiding the guide so I'm hoping some Houdini experts out there may have some insight!

Thanks

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Happening with me too. I'm on 20.5.684 version. Opening a new file doesn't help. I was hoping maybe the viewport would get refreshed.
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It works in my case when I toggle the "Guide" Checkbox off/on(21.0.440).
In your case it might also be related to your graphics card driver as I had similar issues with that in the past.
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Hi,

I have the same problem but when using the rbdbulletsolver sop. Not any of the force-guides show up when toggled on or off.

I am able to show them when doing the following:

When going into your vellumsolver/rbdbulletsolver, up top where the "breadcrumbs" or "adress" shows you where you are, you can see that you actually jumped an extra layer deeper. A dopnet is suddenly extra there. That's normal because how those nodes are build up, but if you enter that dopnet (click on it in the breadcrumb-thing), you enter a "locked off" dopnet and suddenly the guides are visible in the viewport, at least if you toggled them on on your force. If you now pin your viewport to that view, you can go back to the forces and adjust them.

The so called breadcrumb (I'm sorry, I don't have a better word)



So it seems that the toggle or view of the forces gets lost in the whole dop-setup that simplifies the rbdbulletsolver and vellumsolver.

edit: I am on version 21.0.440 on Linux.
Edited by MatsWatlab - Feb. 13, 2026 11:48:49

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