To add custom mesh to the scene through the Blender Python API we need to do the following:
Open the “Text Editor” window.
Import the main Blender Python API module.
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import bpy |
Any mesh consists of vertices, edges, and faces. Let’s make data blocks for them.
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vertices = [(0, 0, 0),] edges = [] faces = [] |
Our simple mesh will consist only of a single vertex. So let’s fill only the vertices data block, setting the vertex coordinates.
Next, make the mesh structure with the “new_mesh” name,
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new_mesh = bpy.data.meshes.new('new_mesh') |
and fill it from the data blocks.
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new_mesh.from_pydata(vertices, edges, faces) new_mesh.update() |
We created the mesh, but it couldn’t be added to the scene as raw. Only objects could be added to the scene. Let’s make an object with the “new_object” name and link it with the created mesh.
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new_object = bpy.data.objects.new('new_object', new_mesh) |
We created the object. But there is more to do. We need a collection in which we will add the created object. Let’s make a new collection with the “new_collection” name and place it into the master scene collection.
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new_collection = bpy.data.collections.new('new_collection') bpy.context.scene.collection.children.link(new_collection) |
Now we can add our object to the scene, placing it into our collection.
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new_collection.objects.link(new_object) |
The final code:
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import bpy # make mesh vertices = [(0, 0, 0),] edges = [] faces = [] new_mesh = bpy.data.meshes.new('new_mesh') new_mesh.from_pydata(vertices, edges, faces) new_mesh.update() # make object from mesh new_object = bpy.data.objects.new('new_object', new_mesh) # make collection new_collection = bpy.data.collections.new('new_collection') bpy.context.scene.collection.children.link(new_collection) # add object to scene collection new_collection.objects.link(new_object) |
After this code execution, by pressing the “Run Script” button, we will add a mesh with a single vertex to the scene.