For those who want to know “how Blender works” to write their own scripts and add-ons, the developers have provided a very convenient option – the ability to view any element source code in a single click.
To see the source code of any element: open the “Text Editor” window; then simply click on the desired element with the right mouse button and select “Edit Source”.
When opening files through the “File Browser” in Blender 2.8x, directories (folders) are opened with mouse double-click. This change has been made for better compatibility with the standards (directories are opened by double-clicking in most file managers, for example, in the Windows Explorer), but this is not always convenient.
To make the folders opening by a single click:
How to open folders by a single click in Blender 2.8xRead More »
To see the render time remaining just move the cursor over the render progress bar.
The direction of a Bezier curve, visually indicated by its normals slope, can be checked by the indices of its points.
The Bezier curve points indices always ascending in the curve direction.
So, having two points on the curve we can get the direction through their indices:
|
1 2 3 4 5 6 7 8 |
bezier_spline = bpy.context.object.data.splines[0] p0 = bezier_spline.bezier_points[0] p1 = bezier_spline.bezier_points[1] p0_index = next(iter([point[0] for point in bezier_spline.bezier_points.items() if point[1] == p0]), None) p1_index = next(iter([point[0] for point in bezier_spline.bezier_points.items() if point[1] == p1]), None) direction = 'p0 to p1' if p0_index < p1_index else 'p1 to p0' print(direction) # p0 to p1 |
To split a Blender viewport window to four projections: top, left, face and perspective, you can press the following key combination:
ctrl + alt + q
The cursor has to be on the viewport window.
Second pressing this combination returns viewport window to the previous state.
In Blender 2.81 with the “Vector Math” node we can simple regulate the subsurface radius:
To get current Blender version number through the Python API we need to execute the following command:
|
1 2 3 |
bpy.app.version # (2, 81, 16) |
or
|
1 2 3 |
bpy.app.version_string # '2.81 (sub 16)' |
How to get current Blender version number through the Python APIRead More »
Render starts in a new window in Blender 2.81 by default. And there is no more render display mode settings in the “Render” menu. These settings were moved into the “Preferences”. To configure render execution window – open the “Preferences” window, press the “Interface” button and in the “Temporary Windows” configure the “Render In” parameter as you need.
To translate cursor to the desired mesh vertex execute the following code:
|
1 |
bpy.context.scene.cursor.location = bpy.context.object.matrix_world @ bpy.context.object.data.vertices[_VERTEX_NUMBER_].co |
Attention to the multiplication order – world matrix should be left.
To move the cursor to the start position of the active strip in Blender VSE:
|
1 |
bpy.context.scene.frame_current = bpy.context.scene.sequence_editor.active_strip.frame_start |
To move the cursor to the end position of the active strip:
|
1 |
bpy.context.scene.frame_current = bpy.context.scene.sequence_editor.active_strip.frame_final_end |