Cutting Mesh with Curve

Replies to This Discussion

Permalink Reply by adimeyero on August 7, 2017 at 1:00pm

OK so.. I also need to somehow cull the faces.. help someone?

Attachments:

• cut mask2.gh, 88 KB

Permalink Reply by Hyungsoo Kim on August 8, 2017 at 12:41am

Hi.

Why don't you use "Mesh Split"?

Attachments:

• cutmask2_re.gh, 91 KB

Permalink Reply by adimeyero on August 8, 2017 at 9:24am

Hi, thank you for your response!

The thing is I want to cut the mesh cording to the projected curve, and even if I create a mesh from the projected curve and then use mesh spit it's not good enough because in the eye and nose area the geometry is too complex.. to I thought pull points would work best. 

Attachments:

• cut mask3.gh, 168 KB

Permalink Reply by Hyungsoo Kim on August 8, 2017 at 11:19am

Not sure if you know about this, but you should always keep in mind the normal direction of the cutter surface when doing this kind of split or boolean operation.

And note that, IMHO, your method will not be well adapted to the face shape because the topology of the newly created mesh will follow the cutter mesh entirely.

Attachments:

• cutmask2_reV2.gh, 90 KB

Permalink Reply by adimeyero on August 8, 2017 at 12:34pm

Thank you again!

I saw people use this flip component before but i'm not sure why the normal of the cutter surface matter? seems to work without it.

Anyway, the problem is the topography of the created patch is too simple to achieve the outcome I'm after (see in the first file- the eye is cut), and I want to easily be able to change the shape without having to create loft cutters->mesh. Specifically in this case I'm trying to leave the nose out (unlike in your file) but include the whole eye (see my attached file). 

I did manage to achieve this with my method (see my other attached file), don't know what you mean about the typology of the cutter, but know I have a pretty nasty mesh that I can export to Zbrush to re-mesh and even project again on the original mesh to get better accuracy but I would like to avoid that. Any Ideas? Of course I don't want to loose resolution in the process. 

Attachments:

• cut mask4.gh, 165 KB
• cutmask2_reV2_notWorking.gh, 161 KB

Permalink Reply by Hyungsoo Kim on August 8, 2017 at 1:04pm

I sad "Topology", not "Typology". And usually remeshing in this kind of situation, you'll need more dense mesh subdivision where there is more curvy area of face, but yours is not. 

It would be better to take the attachment if you intend to take it to Zbrush anyway.

Attachments:

• cutmask2_reV3.gh, 165 KB