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Unanswered Questions

1,058 questions with no upvoted or accepted answers
7 votes
0 answers
929 views

Scale operator icon OR make template_icon clickable

I am trying to present the user with a gallery view to select a item from the thumbnails. Ideally, they click a button, are presented with the gallery view, and with a single click choose the item. I ...
7 votes
0 answers
677 views

Update function for NodeSocket?

How do I set a callback for socket input change (value or link change) when having a custom node? I have a socket defined like: ...
7 votes
0 answers
769 views

Hide filter options in UIList

I want the UIList to not show the filter options (inkl. the plus button). I've use following flag: self.use_filter_show = False The flag disables the filters ...
6 votes
0 answers
578 views

Can I measure the UI font size with Python in order split text into multiple lines?

Is there any way to get the size of UI text, such as when using layout.label(text="message")? I'm trying to create a simple message box popup that displays ...
6 votes
1 answer
2k views

How to update compositing nodes via script?

I create some nodes in compositing via python script: ...
5 votes
1 answer
248 views

Finding which addon an operator belongs to

A recent question / answer involves what looks like an overridden operator: bpy.ops.object.align() Differing from the documented default, how do we find which ...
5 votes
0 answers
183 views

How to access Density/Flame grid via Python in 2.82 (Mantaflow)

Does anyone know how do I access the density/flame grid for the new Mantaflow fluid simulation engine in Blender 2.82? The old path still exists: ...
5 votes
0 answers
2k views

Addon not correctly reloading

Disabling my addon gives this error: RuntimeError: unregister_class(...):, missing bl_rna attribute from 'RNAMeta' instance (may not be registered) and re-enabling it gives this error: ValueError: ...
5 votes
0 answers
164 views

Blender Python: Output Paragraph of Text?

Is there any built-in support for automatic line breaks when writing text to the UI, such as through the layout.label() function? For example, if I set text that ...
5 votes
0 answers
354 views

Is there a way to make blender using slerp on quaternions?

I'm now working on a blender importer addon. I have managed to import models and animations extracted from some game into blender successfully. The pose looks perfect most of the time, but at some ...
5 votes
1 answer
2k views

ANT Landscape erode option?

I have just updated to Blender 2.79 and was playing around with the updated ANT landscape add-on when I noticed a new option called Landscape Eroder, this has the potential to be really cool but I can'...
4 votes
0 answers
673 views

How does blender make native icons with different colors?

I'm making an addon for blender and I want to change the color of the native icons used in the custom layout for a better visual experience. I made this simple grid to display all possible icons, but ...
4 votes
0 answers
221 views

How to dynamically load a .dat icon (toolshelf icon)?

Using documentation here 2.80/Python_API/UI_DESIGN, I've managed to create a custom .dat tool shelf icon for use with an operator in my addon. The icon will display from my addon when registered from ...
4 votes
0 answers
2k views

How to create a new node type to be used in shader editor?

I am trying to create a new node type (NOT a node group). For example a node that takes two floats as inputs and returns another float as output, and I can do whatever with python in between. I saw &...
4 votes
0 answers
4k views

*.JT CAD format direct import

Has anyone stumbled across a decent way of importing .jt CAD files into Blender? Direct import would be nice. Currently I am using CAD Exchanger (paid license) but if someone is using an different ...

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