Using BMesh you can use custom data layers (see
https://www.blender.org/api/blender_python_api_2_77_0/bmesh.types.html#custom-data-layer-access
) - generic int/float/string ones.
Beyond that not much to do, mesh items have no uid at all, outside of
bmesh I guess you could encode some data into a vgroup e.g. (for
vertices at least), but that’s rather limited and hackish.
Le 30/06/2016 à 17:35, Khalifa Lame a écrit :
Alternatively, do those mesh elements have internal unique constant
IDs i can access? Indices change all the time (I believe), so they are
not a reliable way to identify mesh elements.
On Thu, Jun 30, 2016 at 3:21 PM, Khalifa Lame <[email protected]
<mailto:[email protected]>> wrote:
Ah, that explains a lot. An error message during prop creation
would have been very helpful. So what options (if any) do I have?
Verts, edges and faces do have individual properties like bevel
and crease weights. How were those properties created? Can I
somehow squeeze in my own custom properties as well?
On Thu, Jun 30, 2016 at 1:11 PM, Bastien Montagne
<[email protected] <mailto:[email protected]>> wrote:
ID properties are only available for IDs (and a few other
special cases, like bones and some UI classes). Other types
just do not support them at all.
To check wether a type supports ID properties, just try to use
one of its mapping protocol item (e.g. C.object.keys() works,
while C.object.vertex_groups[0].keys() does not).
Le 30/06/2016 à 13:08, Khalifa Lame a écrit :
Hi. I need assign custom properties to mesh vertices, edges
and faces. It doesn't throw any errors on creation of the
custom props, but after they've been created, they don't
behave as one would expect. They are read-only tuples rather
than bpy.props.IntProperty() for example.
For comparison, here's the normal behavior of a custom property
Here's what I get on certain bpy.types
An unusable tuple!
And if I try to assign a value, I get
Is there a reason for this? Is there a known workaround or
hack? I really do need to store custom props on vertices,
edges, faces and vertex groups.
--
khalibloo®
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