Blender add-on: BIS v. 1.6.2.
BIS (Blender Interplanety Storage) updated to v.1.6.2.
- Some minor changes in the add-on UI.
Blender 3D
DownloadSimple rotation around edge
It is difficult to rotate mesh polygons around an edge if this edge is not parallel to the global X, Y, or Z axis — we need to switch to the edge local coordinate system, fix axes, and then rotate polygons about these axes. However, this can be done easier and faster – position the viewport parallel to one of the edges local axis and perform a rotation by simply pressing the “r” key.
To quickly rotate polygons around the edge:
- switch to the “by Active Element” mode,
- select geometry to rotate
- next select the edge, around which you want to rotate the geometry. Selected last it becomes an active element,
- press shift + Num1 (Num3 or Num7) to set the viewport parallel to one of the edge axes,
- rotate geometry by pressing the “r” button.
Showing and hiding collections in Blender 2.8
Clicking the collection “eye icon” in Blender 2.8 outliner shows and hides the visibility of objects from this collection in viewport window. To show only objects from the necessary collection and hide objects from all other collections with a single click – click the “eye icon” with the “Ctrl” button pressed.
Top and bottom toolbar position in Blender windows
In Blender 2.8 the toolbars are located on the top of the working windows. But you can easily return them to the habitual bottom position.
Right-click on the panel and select “Flip to Bottom” to move the panel down. To return the panel back to the top, right-click on it and select “Flip to Top”.
This feature is not Blender 2.8 exclusive, the same can be done in Blender 2.7.
How to set object (mesh) to active in Blender 2.8 Python API
To set mesh (object) as active in Blender 2.8 Python API the “context.view_layer” is used instead of “context.scene”.
When trying to make object active with “bpy.context.scene.objects.active” Blender throws an error:
AttributeError: bpy_prop_collection: attribute “active” not found
To make object active in Blender 2.8 use the following code:
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obj = bpy.context.window.scene.objects[0] bpy.context.view_layer.objects.active = obj # 'obj' is the active object now |
Selecting objects (meshes) in Blender 2.8 Python API
According to Blender 2.8 Python API changes mesh (object) can be selected with using getters and setters.
When trying to check the selected status of the mesh through the “bpy.context.active_object.select” property, Blender throws an error:
AttributeError: ‘Object’ object has no attribute ‘select’
To check whether an object is selected in Blender 2.8 use a getter:
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bpy.context.active_object.select_get() # True |
To select an object in Blender 2.8 use a setter:
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bpy.context.active_object.select_set(state=True) |
To unselect an object use the same setter:
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bpy.context.active_object.select_set(state=False) |