Python: mesh.vertex_colors.new broken #105150

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Scurest · 2023-02-23T19:10:50+01:00

Scurest commented

2023-02-23 19:10:50 +01:00

System Information
Operating system: Linux

Blender Version
Broken: 3.6.0-alpha+main.e497a50aa207 (build date: 2023-02-23)
Worked: 3.6.0-alpha+main.c39b81d83288 (build date: 2023-02-16)

Short description of error
Creating a new vertex color layer via the mesh.vertex_colors.new API returns an existing layer instead.

Note: I am aware the vertex_colors API is deprecated.

Exact steps for others to reproduce the error
Create a cube, open the Python console and run

>>> C.object.data.vertex_colors.new()
bpy.data.meshes['Cube'].vertex_colors["Col"]  # works!

>>> C.object.data.vertex_colors.new()
bpy.data.meshes['Cube'].vertex_colors["Col"]  # broken

>>> C.object.data.vertex_colors.new(name="Foo")
bpy.data.meshes['Cube'].vertex_colors["Col"]  # broken

In 3.6.0-alpha+main.c39b81d83288, you correctly get three new layers.

**System Information** Operating system: Linux **Blender Version** Broken: 3.6.0-alpha+main.e497a50aa207 (build date: 2023-02-23) Worked: 3.6.0-alpha+main.c39b81d83288 (build date: 2023-02-16) **Short description of error** Creating a new vertex color layer via the `mesh.vertex_colors.new` API returns an existing layer instead. Note: I am aware the `vertex_colors` API is deprecated. **Exact steps for others to reproduce the error** Create a cube, open the Python console and run ```py >>> C.object.data.vertex_colors.new() bpy.data.meshes['Cube'].vertex_colors["Col"] # works! >>> C.object.data.vertex_colors.new() bpy.data.meshes['Cube'].vertex_colors["Col"] # broken >>> C.object.data.vertex_colors.new(name="Foo") bpy.data.meshes['Cube'].vertex_colors["Col"] # broken ``` In 3.6.0-alpha+main.c39b81d83288, you correctly get three new layers.

Scurest added the

labels 2023-02-23 19:10:51 +01:00

Scurest changed title from ~~Regression: mesh.vertex_colors.new broken~~ to Python: mesh.vertex_colors.new broken

2023-02-23 19:11:40 +01:00

Hans Goudey added

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