Switching the selection mode between vertices, edges, and polygons in mesh edit mode is mapped by default to pressing the 1, 2, and 3 keycodes on the keyboard. However, if it is more comfortable to use these hotkeys for other functions, we can change this mapping.
How to change the hotkey for switching selection mode between vertex-edge-faceRead More »
In Blender 2.8 node connectors in the “Shader Editor” window are straight by default, unlike earlier versions, where they bent curving. To return the usual connections bend, change the following settings:
Blender Python API autocomplete modules by Nutti update – added branch for Blender 2.81a.
Last release: 2020.01.11.
Author GitHub: https://github.com/nutti/fake-bpy-module
Only files (without pip installation) https://github.com/Korchy/blender_autocomplete
In Blender 2.79, mesh vertices were highlighted in the “tweak” selection mode by holding down the “shift” key and a slight cursor movement with the right mouse button pressed. This allows quickly add vertexes to the selection without aiming each vertex with sniper accuracy.
In Blender 2.8x, this method has become unavailable due to the left click selection change. For those users who remained on “the right click select”, nothing has changed, everything works as before. The “tweak” selection was broken only for those who switched to the left click selection.
To use the “tweak” selection with the left click select, you need to make the following changes into the keyboard shortcut settings:
In Blender 2.80 and 2.81, the button for blocking mesh transformations (Manipulate center points) has been moved to the N-panel, the “Tool” tab (Options – Transform – Affect only – Locations) and changed to the checkbox.
Sometimes it is necessary to save data for creating a mesh (its vertices and polygon indices arrays) to text, for example, for further use in a script or addon.
We can export the mesh to one of the open formats, for example, to *.obj, but if we need only its vertexes and polygons data, we can use the following simple script:
The Blender API provides a set of simple property types described in bpy.props (IntProperty, BoolProperty, etc.). But the basic types are not always enough, sometimes we need more complex ones. The Blender API allows to group simple properties to make complex properties.
Let’s consider such complex property creation and make the 3×3 matrix property as an example.
The Blender 2.80 API provides the ability to draw in a viewport (3D Viewport) using the “gpu” module.
As an example let’s draw a simple coordinate system widget in the center of the scene, consisting of three lines with different colors.
In Blender 2.79 Python API we can add a new object to a scene with:
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1 |
bpy.context.scene.objects.link(new_object) |
If we try to do this in Blender 2.80, it throws an error:
‘bpy_prop_collection’ object has no attribute ‘link’
In Blender 2.80 API new objects mast be linked not to the scene, but to the scene collections:
To link a new object to the active scene collection:
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1 |
bpy.context.scene.collection.objects.link(new_object) |
To link a new object to the collection by its name:
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bpy.data.collections['collection_name'].objects.link(new_object) |
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