For some reason does not work Biharmonic Capture Geometry. Why can it be?

can you upload the file (with the geometry you are trying to capture)?

goldfarb
can you upload the file (with the geometry you are trying to capture)?

Yes, thank you for the response. In archive i put part of scene and 2 version of geometry. I wrote in the sticky note some comments.

using the muscDH geometry, the problem with it I think is that the tetrahedralization is failing because the geometry is not suited to be tetrahedralized (It has holes and isn't conforming). One way I found to fix this is to use another piece of geometry to do the tetrahedralization (like a sphere, and shape it roughly to match the geo I want to skin) and that works or you could use a different capturing method. Check attached file.

Also if you're using the stash node, you should click the “stash input” button to re-cache the input geo or the deform SOP will still be reading the old geo.

miccetro
using the muscDH geometry, the problem with it I think is that the tetrahedralization is failing because the geometry is not suited to be tetrahedralized (It has holes and isn't conforming). One way I found to fix this is to use another piece of geometry to do the tetrahedralization (like a sphere, and shape it roughly to match the geo I want to skin) and that works or you could use a different capturing method. Check attached file.

Also if you're using the stash node, you should click the “stash input” button to re-cache the input geo or the deform SOP will still be reading the old geo.

Thanks. Yes i know about “stash” and i was trying to close holes, remesh and it does not work.
I thought it was some hidden problem of the original fbx file, which contains many elements created in different programs. I still understand this little, this is the first rig on the Houdini. I may have to use your method, thank you.
UPD: i find another solution. It`s work with Enlarge Input Mesh offset! apparently the reason was too subtle details.

Thanks. Yes i know about “stash” and i was trying to close holes, remesh and it does not work.
I thought it was some hidden problem of the original fbx file, which contains many elements created in different programs. I still understand this little, this is the first rig on the Houdini. I may have to use your method, thank you.
UPD: i find another solution. It`s work with Enlarge Input Mesh offset! apparently the reason was too subtle details.

Oh yeh true.

Danil Shaposhnikov
UPD: i find another solution. It`s work with Enlarge Input Mesh offset! apparently the reason was too subtle details.

yes - this is one of the issues with the biharmonic method - the output of the Bone Capture Lines SOP needs to be inside the tet mesh. You'll also have issues with those very thin sheets of muscle.

thinking more about this…it's an interesting use case - we'll have to think up something clever

goldfarb
thinking more about this…it's an interesting use case - we'll have to think up something clever

It's no problem anymore for me when i'm add bones for control muscle reaction, everything work fine. Houdini is amazing.