creating fillets in Houdini

[cspears2002]

I'm trying to model a plant in Houdini. However, I think the transition between the plant's stem and vine are rather abrupt.

When I used Maya in the past, I created a fillet between the two surfaces to smooth the transition. However, when I use the Fillet SOP, I get a pretty ugly result.

I've been playing with various parameters with no luck. Any hints? I included the scene file if you want to take a look.

audrey_v14.hipnc

[digitallysane]

Fillet SOP in Houdini is different from the Fillet tool in Maya. In Houdini it creates a surface between two other surfaces, at the edges. If you want to make a skin with tangency between two trim curves, use the Bridge SOP.

Check the help for Fillet, Bridge, Stitch and Join.

Also be aware that while the Bridge SOP has some wonderful features, the numerical precision of Houdini seems to be lower than that of other apps, so you won't always get satisfactory results.

Dragos

PS Actually in your case the most useful might be the Surfsect SOP or the Round SOP.

[cspears2002]

Yeah, I have found the Surfsect SOP to be the solution for my problem. I will need to play with parameter a bit though. Any advice on eliminating the new surface's seam?

[cspears2002]

My problem with the Surfsect SOP is that it does not create one nice surface. Instead I have three seperate surfaces that wrap around the tentacle resulting in some ugly seams! Is there a way to get one surface from the SOP?

[sibarrick]

It's hard to tell but it looks like from your first picture that the uv for the main stem is the wrong way round. Try putting a reverse sop on it and swapping the u and v. It looks at the moment like the u from the branch is joining to the v of the stem. Just a guess. Post a hip file if you need more help.

[digitallysane]

A simple question: do you really need / want NURBS for that? A polygonal model with a Polybevel SOP would solve your problem in an instant.