Dear Readers:

I have some hexagonal tubes in a symmetrical arrangement, which I joined with a polyKnit and then closed up using a polyCap. The problem I'm experiencing is that when I subdivide the geometry the end areas where the caps occured are doubling up. I have attached jpgs for reference.

Can anyone suggest a solution? I'd hate to select prims one by one and blast them (I tried that but it's too tedious and can lead to selection mistakes).

Sincerely,
markerline

a shaded picture of the same geometry . . .

The errant geometry is the spikes on the ends of the “fingers”. This model is an adapation of the Y-Not water bottle.

Try adding a Fuse SOP before the Subdivide SOP.

Dear Edward,

Actually, I tried using a Facet SOP and consolidating points which I think is what Fuse does as well. In both cases this method did not work for me. If I Fuse AFTER the subdivide, points will get deleted and merged, but the result is unpredictable and not symmetrical.

EDIT: While writing this response and going back and forth between the post and the hip file I noticed I had duplicate geometry towards the beginning of the hierarchy. THAT was the root of my problem. Thanks for helping me to discover this. I now have what I want.

Sincerely,
markerline

When subdividing it's also always a good idea to check all the primitive normals point in the same direction. If they don't you'll get hard creases in the subdivide.