When working with mesh geometry using the Blender Python API, it is often necessary to visually control which vertices are processed by scripts and which are not. Ordinary Blender users may also find it useful to be able to navigate the mesh’s vertices by their numbers.
As with normal mesh manipulation via the Blender Python API, when using the BMesh object to deselect vertices, it is not enough to simply change the value of their “select” property to the opposite. To deselect the vertices of the BMesh object, the “select” value must also be changed for the edges and polygons adjacent to them.
Blender is an international project, popular in many countries. Therefore, its interface has been translated into many languages, and in its settings we can conveniently and quickly switch between the necessary translations.
Along with the scene objects, the Blender Python API allows us to interact with the Blender interface. For example, using the Python API, we can show and hide the most commonly used toolbar – the N-panel.
Opening and closing the N-panel using Blender Python APIRead More »
In Blender, any object can be removed from a collection, as well as from all collections to which this object has been added, using the Python API.
Removing objects from collections using Blender Python APIRead More »
The BMesh module provides users of the Blender Python API with far more options for editing meshes than the usual object data structure.
Copying objects to the clipboard is used in Blender in the same way as in all other applications: by pressing the Ctrl + c key combination, and pasting from the clipboard with Ctrl + v. However, an interesting feature of copying and pasting objects in Blender is that the system clipboard is not actually used.
We can mark and clear UV seams on the mesh geometry either manually, with the Mark Seam/Clear Seam operator, or using the Blender Python API.
In Blender, when we using the Subdivision Surface modifier, the Mean Crease parameter is used to control the stiffness of the smoothed edges. The Mean Crease value can be set via the standard UI in the N-panel, or using the Python API.
Managing the Mean Crease parameter for edges using Blender Python APIRead More »
Commonly, when a user executes an operator in Blender, this event is automatically recorded in the “Undo History” list so that in the future he can quickly undo the execution of the operator (Ctrl + z) or execute it again – redo the operator execution (Ctrl + shift + z). However, this does not always work.
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