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Python Scripting in Blender

You're reading from   Python Scripting in Blender Extend the power of Blender using Python to create objects, animations, and effective add-ons

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Product type Paperback
Published in Jun 2023
Publisher Packt
ISBN-13 9781803234229
Length 360 pages
Edition 1st Edition
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Author (1):
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Paolo Acampora Paolo Acampora
Author Profile Icon Paolo Acampora
Paolo Acampora
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Toc

Table of Contents (19) Chapters Close

Preface 1. Part 1: Introduction to Python
2. Chapter 1: Python’s Integration with Blender FREE CHAPTER 3. Chapter 2: Python Entities and API 4. Chapter 3: Creating Your Add-Ons 5. Chapter 4: Exploring Object Transformations 6. Chapter 5: Designing Graphical Interfaces 7. Part 2: Interactive Tools and Animation
8. Chapter 6: Structuring Our Code and Add-Ons 9. Chapter 7: The Animation System 10. Chapter 8: Animation Modifiers 11. Chapter 9: Animation Drivers 12. Chapter 10: Advanced and Modal Operators 13. Part 3: Delivering Output
14. Chapter 11: Object Modifiers 15. Chapter 12: Rendering and Shaders 16. Index 17. Other Books You May Enjoy Appendix

Improving Load Textures

Nodes can be moved to a different position by setting the x and y attributes of their location property. This allows us to arrange them in our scripts.

Arranging shader nodes

Even if we can move our nodes freely, the API poses a few limitations:

  • We can’t access the exact location of the sockets
  • The width and height of new nodes are not available in the scripts

One of those two issues at a time would be tolerable, as we could either move our nodes at the height of their inputs or get the space required by a new node on the fly. Since they occur together, we will resort to a workaround.

Assuming node spacing

We cannot get the size of new nodes in a script, but we can learn the default size of a texture node beforehand by looking at an existing shader tree. For instance, after we use Load Texture, we can switch to the Scripting workspace and get the dimensions property of an 'Image Texture' node:

>>> node_tree...
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