I have a closed surface in STL format, with inconsistently oriented triangles
-- e.g. half of the normals to triangles pointing inside, half outside. The
connectivity of the mesh is correct, the only issue is the normals'
orientation. Can MeshLab fix this issue and, if yes, how?
Best regards,
Artem
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And is there any way to treat these separate parts, well, separately? E.g. I
have surface in STL file which encloses not-connected 2 volumes (it may be
considered as 2 separate surfaces in a single STL file). After normal
correction all normals in one part point inwards, in another outward. Is it
possible to 'isolate' one volume and apply filter "normal reverse" only to
this part?
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yes
use the select connecte component tool (on the toolbar),
move the selection onto another layer,
apply filter for orientation adjustment
merge layers
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi,
I have a closed surface in STL format, with inconsistently oriented triangles
-- e.g. half of the normals to triangles pointing inside, half outside. The
connectivity of the mesh is correct, the only issue is the normals'
orientation. Can MeshLab fix this issue and, if yes, how?
Best regards,
Artem
Yes
menu filter->Normal, Curvature Orientation->Reorient all faces coherentely.
IF the mesh is manifold usually it does a honest job.
Caveat each connected component is oriented independently.
Thanks a lot for your answer.
And is there any way to treat these separate parts, well, separately? E.g. I
have surface in STL file which encloses not-connected 2 volumes (it may be
considered as 2 separate surfaces in a single STL file). After normal
correction all normals in one part point inwards, in another outward. Is it
possible to 'isolate' one volume and apply filter "normal reverse" only to
this part?
yes
use the select connecte component tool (on the toolbar),
move the selection onto another layer,
apply filter for orientation adjustment
merge layers
Thank you.
Hello,
I Have some problems with this function, I can't re orient all face
coherently.
I think that could be a non-manifold problems but I don't understand How to
clean that.
I'm not familiar with meshlab so I think I made mistake.