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Results tagged with bmesh
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user 55
Blender Python Bmesh module, added in 2.63, provides an alternative method of manipulating meshes "giving Python access to the functions used by Blender’s own mesh editing tools.". Use this tag for question about using the Bmesh module in Python scripts and add-ons.
13
votes
Accepted
What is the technical difference between an Ngon and a bunch of Triangles?
This question is very generic - but you give a very specific example (Subsurf) which happens to treat ngons differently to many triangles (to be clear - differently to a triangulated ngon).
The answe …
- 48k
11
votes
Accepted
Is there a way to select edges marked as sharp via python?
There isn't a single command for this, but a script to do this is quite simple:
Note that with BMesh, the same smooth option is used for faces and edges (not smooth == sharp). … import bpy
import bmesh
obj = bpy.context.edit_object
me = obj.data
bm = bmesh.from_edit_mesh(me)
for e in bm.edges:
if not e.smooth:
e.select = True
bmesh.update_edit_mesh(me, False) …
- 48k
4
votes
How to fix ngons overlapping wire edges?
There are 2 ways I would suggest to fix up a model with edges like this.
Using Fill holes:
This tool was written for almost this exact case, it has the advantage it will fill in UV's. vertex-colors …
- 48k
3
votes
Accepted
Order of vertices added using Python script and bmesh
BMesh only ensure vertices are added in-order when they are added to a newly created (or converted) mesh (which is OK for importers and geometry generators). …
- 48k
9
votes
Accepted
20
votes
Accepted
how to use BMesh to add verts, faces, and edges to existing geometry
So instead, just exit editmode and blender will handle converting the modified bmesh into the object mode mesh data. … import bpy, bmesh
obj = bpy.context.object
me = obj.data
bm = bmesh.from_edit_mesh(me)
v1 = bm.verts.new((2.0, 2.0, 2.0))
v2 = bm.verts.new((-2.0, 2.0, 2.0))
v3 = bm.verts.new((-2.0, -2.0, 2.0))
bm.faces.new …
- 48k
2
votes
Accepted
How to access vertex_color layer directly from inside BMVert
Vertex colors are stored in face loops, you can't ignore/overlook this.
However its reasonable that you might want to generate vertex colors per vertex and not have to deal with looping on vertex-loo …
- 48k
1
vote
Accepted
Script to separate an object's mesh without using bpy.ops
No, currently the only method for splitting objects uses bpy.ops, there aren't always API equivalents for each blender operator.
- 48k
5
votes
Accepted
Manipulate Vertex group names in the bmesh API
Vertex group names are stored in the object, not the mesh.
The order of groups just has to be aligned between the mesh and the object.
So yes, you have to name the group on the object.
- 48k