Avoiding Pinches on Creased Edges?

kmyung

Hello there,

I was wondering if anyone knew how to go about this problem I'm having.. Im trying to crease these edges, but as I do it pinches the geometry. I've tried adding extra geometry, but it just adds more issues with hard edges in other areas of the mesh. Would anyone happen to have a solution/workflow for this kind of stuff? Thank you!

Brian "Panda" Choi

Dyou try running a Polish operation on it?

Deformation>Polish

kmyung

Yes- I get the best results with polish by features, but it starts rounding out my corners and doesn't fully get rid of the pinch. It's just the perfectionist side of me wanting it to just be flat.

musashidan

It's your topology. For cleaner results use a continuous edgeloop rather than grid topology. This will avoid that nasty pole. 3/5-sided poles are essential for modeling, but they will cause shading issues. It's just a matter of learning/understanding topology.

kmyung

@musashidan Hey there- gave it a go with the edge loop you've created still running into the same issue.

kmyung

If anyone runs into a similar issue- I spoke to an old mentor about it, and he told me that the base geo is too low for creasing use. 
Adviced me to delete the extruded faces for thickness, and subdivide the areas for more geo, and then re-extrude. Will be giving it a go-!

sacboi

Yeah, sounds workable.

Also a note for future reference, the art of good/optimised topology design is a broad essential element to master whether polygonal hard surface or organic, so as previously mentioned I'd second further indepth research on the subject.

EDIT:
As an aside, I was going too recommend a similar option of adding an additional loop cut to preserve that edge due in part your polyflow dosn't support maintaining it's 'organic' form, which results in the algorithm not performing accurately as expected if a more.efficient edgeflow was in place, hence thrown shading errors.

Anyway, when you've time to spare I'd strongly advise browsing through our subdiv modeling thread, stickied to the top of this board, theres a wealth of relevant material that'll prove quite useful.

musashidan

Here's an old, but relevant, tutorial from my YT channel on this very issue.

https://www.youtube.com/watch?v=sqMQqjs0qpw