Does anyone know if there is a way to hide hair geo in the "hairgen" SOP while grooming ?

When I select some hairs in the viewport, there's this nice "visibility" dropdown menu at the top of the screen, but when I try to use it while grooming, it doesn't work.

At first it hides the hair alright, but doesn't work while grooming. Doesn't make a difference if I plug the "visibility" SOP before or after the Groom, all the hairs become visible again when I start grooming.

Same for Hair Guides btw....

Another bug, am I doing something wrong, or is this feature just for show ?

H 20.5.751

is there a screenshot or hip file?

goose7
is there a screenshot or hip file?

It's very basic, but here's some screenshots of what I'm trying to do.

If I select the visibility SOP, the guides ( but the same happens with hair ) are hidden, but as soon as I want to groom, poof! all is visible again.

I want to speed up the grooming of some dense hair, so it would be great if I could get this working.

Visibility node does not work for me either. Even if I put visibility node before the guide groom node
You could try a split node before the guide groom node.
After grooming each group of guide, merge them(guides) back
And just in case, it seems wrong to wire a guides out put into SKIN out put and SKINVDB out put
It will confuse following operators

Hey, thanks for checking.

The wrong skin & skinvdb connections is what Houdini created, but connecting them properly didn't make a difference either.

I thought I'd check if it's the same in 20.5, but one still can't select guides in the viewport in 20.5.323. Which is a bug I reported when 20.5.278 was released, but still is not fixed it seems.

Going from bad to worse...

Hi toonafish,

The guide selection issue was fixed in 20.5.328 - it was a Vulkan bug with subdivision curve display. As for your issue with the visibility, I am unable to recreate it, it works fine for me in both 20.0 and 20.5. What Guide Groom Tool are you using (Sculpt, Brush, etc?) and what OS do you use?

I've attached a video where I got it working, as well as specified a guide group called "visibility" which I input into the hairgen. I assume this is the result you want? It will obviously not be perfect as it won't be correct around the edges, but it will be the quickest way of getting the result you want.

Let me know if that helps.

Edit: I've also uploaded a hip file that I created in H20.0.751

And just to clarify, the reason why I have the same group specified in both the guidegroom SOP and the visibility SOP is so that I don't accidentally affect guides that are hidden but still able to be affected by the tool in the guidegroom SOP, as it doesn't know anything about the downstream visibility.

Liesbeth_Levick
Hi toonafish,

Let me know if that helps.

Ah, great thanks.

Just installed 20.5.332 and hiding guides seems to work now.