Python

Mesh Custom Properties editing through the Blender API

Nikita
5 Comments / Blender 3D / /

New mesh Custom Property can be created through the Blender python API by executing the following code:

with:

  • object_name – name of the mesh
  • property_name – new custom property name
  • property_value – value of this new property

After executing this command, the new property will be created and will be available in the Properties window – Object panel – Custom Properties sub-panel.

Like any object custom properties, the created property has a number of parameters that can be accessed by clicking the Edit button. These parameters can also be changed through the API.

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Creating pop-up panels with user UI in Blender add-on

Nikita

In addition to common panels (N/T/Properties) and their sub-panels, to display the user interface elements while developing Blender add-ons you can also use pop-up panels appearing on the screen when a user presses a certain key combination or perform any action. The simplest example of such panels is the panel that appears when the f6 key is pressed immediately after adding an object (shift+a) to the scene.

Blender API provides developers the ability to create such panels for their add-ons. Let’s consider the creating of a pop-up panel as an example of the “Message box” window.

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BIS v.1.0.0 – Release

Nikita

BIS (Blender Interplanety Storage) add-on release.

Finally, I finished it. It’s release now!

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BIS add-on v.0.0.3

Nikita
2 Comments / Blender 3D / /

BIS (Blender Interplanety Storage) add-on intermediate update to v.0.0.3

The addon is almost in the prerelease state.

  • All Cycles nodes are supported, including script and nested groups.
  • Also added the ability to save scripts/texts from the Text Editor.

To make a release, it was left to clean up a bit the server (site) side – increase the size of the previews, add tags and node names editing, make a separate list for saved texts. And also test the add-on with complex materials.

Active objects access

Nikita

How to access the active (selected) objects through the Blender Python API from scripts/add-ons:

  1. The active window (in which current action occurs):

  1. The active scene:

  1. The active (selected) mesh:

  1. The active (selected) material node (in the NODE_EDITOR window):

  1. The active (selected) material node (in the COMPOSITING window):

  1. The current text in TEXT_EDITOR window:

  1. The active (selected) UV-Map:

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Working with MySQL database from Blender

Nikita

Storing data in a remote database has become common practice in the development of software products. Blender is no exception. Writing scripts and add-ons, the developer may need to access the database to retrieve from it or write to it the necessary information. MySQL today is one of the most common and widely available databases and is well suited for working with Blender.

The interaction between Blender and MySQL database through the Blender Python API is not difficult, but it needs some preparation before stating:

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Binding to timeline frames

Nikita

Sometimes when creating an animation it is necessary to perform some actions according to the timeline or, the same, to the current animation frame number. Binding animation to timeline frames in Blender is possible using the built-in Python API.

As an example, let’s make a simple animation which turns one of the letters of any text from lowercase to uppercase in series.

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