We can enable and disable a collection from interaction with the scene by switching the checkbox located in the Outliner opposite the name of the desired collection. In order to do this using the Blender Python API, we need to access the collection through the View Layer of the scene on which the desired collection is located.
Enabling and disabling collections using the Blender Python APIRead More »
Most objects in Blender have multiple lists of data in their structure. For example, inside a “mesh” object there are list with vertices of this mesh, the list of mesh edges, and the list of mesh polygons. And in the structure of each mesh vertex there is, for example, a list with its coordinates along the X, Y and Z axes.
Getting a list of data from object properties using list comprehensionRead More »
When working with mesh geometry through the bmesh object, we can “recalculate” the normals – rotate the normals in the opposite direction, starting from the direction of the normals of neighboring polygons.
To build polygons using the existing list of vertices, we need to split this list into chunks of the required length. One chunk for each polygon. For a good mesh topology, square polygons are usually built, so the list of vertices is best divided into blocks of 4 vertices.
Splitting the sequence of vertices into chunks to create polygonsRead More »
Starting from Blender 3.5, the switcher for changing adaptive sampling modes was removed from the Cycles render engine panel. However, the parameter itself has not gone away, and its value is left at the default “Tabulated Sobol”.
Setting the sampling pattern parameter for the Cycles render engineRead More »
To remove vertices, edges or polygons from a bmesh object, it is most convenient to use the remove() method for the corresponding set of elements. In addition, the bmesh object has a bmesh.ops.delete() operator, which allows us to delete elements using different modes (context).
Starting with Blender 4.0, a special group of nodes appeared in Blender Geometry Nodes, designed to cyclically execute a section of a node tree a specified number of times. This group of nodes is called “Repeat Zone”.
Creating Repeat Zone Nodes using the Blender Python APIRead More »
When working with 2D animation in Blender, we may need to export objects created with the Grease Pencil tool to external formats such as SVG or PDF.
Using hotkeys is one of the most advanced features in Blender to seriously increase your work speed. We can easily control the availability of a particular keyboard shortcut using the Blender Python API.
Enabling and disabling hotkeys in Blender using the Python APIRead More »
In Blender 3.6 and earlier, inputs and outputs for node groups could be created by calling the new() command for the list of inputs or outputs of the node tree. In Blender 4.0, the developers made changes, and the creation of input and output sockets for node trees was moved to the “interface” object.
Creating inputs and outputs for node groups in Blender 4.0 using the Python APIRead More »
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