Unanswered Questions
5,216 questions with no upvoted or accepted answers
49
votes
1
answer
3k
views
Custom trackpad pan/zoom/rotate behavior add-on
I'm trying to write an addon to customize the trackpad panning, zoomimg, and rotating gestures, but can't find a way to read the actual trackpad parameters for position and so on. The properties in ...
CommunityBot
- 1
11
votes
1
answer
594
views
Save screenshot (bge) without writing to disk
This is a little odd but I need to save a screen-shot as an array (numpy array for eg) without writing to disk. The idea here is to create and then call the array once per frame in an external script ...
CommunityBot
- 1
10
votes
1
answer
740
views
How can I get a list of currently running modal operators?
Here I found a working solution using ctypes which allows to find out if any modal operator is currently running. I am not good in C and don't understand how it works. But I'm sure someone does, so is ...
CommunityBot
- 1
9
votes
1
answer
3k
views
Creating custom node types for geometry nodes
is it possible to create custom nodes for the geometry node editor (NOT node groups, combining blender built-in nodes), define inputs and outputs and execute some python code in between? I couldn't ...
CommunityBot
- 1
9
votes
0
answers
250
views
Play/animate images, spritesheets or video files in 'template_icon_view'
I want to "play" some animation in this UI space, the template_icon_view:
I can load all the images I want, for example:
I know that the gif format is ...
- 2,285
8
votes
0
answers
303
views
how to write a custom projection type?
Is it possible to create a lens shader with EEVEE/Cycles ?
I'd like to have the control over the camera position and the ray direction per sample. This allows to simulate various conventional lens ...
- 60.3k
8
votes
0
answers
892
views
Operator tooltip from layout text
The concept is to make a panel layout that emulates the workspace (screen) layout. While testing I have set all the buttons to be the Splash Screen operator.
An image of how this looks for five ...
- 84.6k
8
votes
0
answers
367
views
Blender on Windows is skipping python script. (brenda on windows)
We've been using Brenda for quite some time now for rendering architectural stills. Since our editing stations are doing nothing at night, I started making a desktop app that allows you to pick jobs ...
7
votes
1
answer
277
views
How to display an image in my custom node
I have a custom node and I want it to be able to display an image. I know that the node has a parameter show_preview and if you enable it, no image appears.
CommunityBot
- 1
7
votes
0
answers
816
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 ...
- 12.7k
7
votes
0
answers
645
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:
...
- 207
7
votes
0
answers
640
views
Is there a low level alternative for bpy.ops.object.convert(target='CURVE')?
(Note: Somebody asked there nearly the same question as me and got a very nice answer. However, this was to convert an object to a mesh. I have exactly the same context as this person but I want to ...
- 13k
6
votes
0
answers
475
views
How do I change the width of the Adjust Last Operation panel?
I've done this simple operator taken from templates. How can I change the width of the Adjust Last Operation panel?
I tried scale_x and ...
- 13k
6
votes
0
answers
718
views
Is there a low level alternative for bpy.ops.mesh.separate()?
I am dealing with a great model, I have a problem, I want to divide it by parts, but bpy.ops.mesh.separate(type = 'LOOSE') seems to have a big problem, that is not ...
- 1,269
6
votes
0
answers
526
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 ...
- 29.3k
6
votes
1
answer
4k
views
Separate alpha from color in Shader Editor
In the Shader Editor, I can create an RGB node and in there, I can set an alpha value as displayed in this screenshot:
However, no color separation node in blender supports extracting that value and ...
CommunityBot
- 1
6
votes
1
answer
2k
views
How to wait for an operation - to another operator - to complete within an operator (import_scene)
Besides the point but why is this not working as a default stack is expected to work?
I'm trying to get an operator to call another operator and wait for the operator's response before proceeding.
...
CommunityBot
- 1
6
votes
0
answers
1k
views
Can Blender automatically reload external script files when they are changed?
I came across this question:
Is it possible to run a script from an external editor without reloading the file?
Which also was asked over here in a similair format:
Workflow for developing add-on/...
- 536
6
votes
0
answers
386
views
How to store rendered image as an nd array without saving the image in blender python?
After rendering using bpy.ops.render.render() to render the image. How do I store it directly to an nd array without actually saving the image and loading it back.
I noticed that after rendering. ...
6
votes
1
answer
2k
views
How to update compositing nodes via script?
I create some nodes in compositing via python script:
...
CommunityBot
- 1
6
votes
0
answers
997
views
accessing Blender objects from external Python IDEs
I would like to manipulate Blender objects from Spyder (not using the internal Python editor). Basically I would like to have Blender running and Spyder running as well, and then interactively access ...
- 161
6
votes
0
answers
533
views
Does anyone have an example of template_curve_mapping?
I'm doing some test with template_curve_mapping.
I have write this code:
...
- 492
6
votes
0
answers
693
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 ...
- 703
5
votes
0
answers
154
views
Flat shading when using displacement or bump
When using a bump or displacement node and bump only or displacement and bump in the material settings, the shade smooth option seems to not be working. Instead the geometry starts to show, auto ...
- 51
5
votes
0
answers
766
views
How can I make the text of my panel in bold or italic? this is blender python related
Basically what I want is to make my panel header in bold and other text in my panel to be italic.
For example: I want the text 'settings' with the preferences icon to be in bold.
This is the code for ...
- 332
5
votes
0
answers
137
views
The documentation says frame_change_pre is NOT the ‘before the frame changes’ event. What exactly is it then?
I would have imagined that frame_change_pre is the event that happens, well, before the frame changes. Silly me!
The documentation states (emphasis mine):
Called ...
- 792
5
votes
1
answer
231
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 ...
- 2,993
5
votes
0
answers
196
views
Object Picker Modal Operator?
I saw this question this morning and i'm also quite interested in a Picker modal operator, so I did tinker a bit and achieve a somewhat beginning of a working code but I encountered some problems ...
- 1,942
5
votes
1
answer
637
views
How can I detect a scene change from Python?
I am trying to detect when the active scene changes.
Initially I tried using the message bus system to subscribe to bpy.types.Window, "scene"
Like this:
<...
CommunityBot
- 1
5
votes
0
answers
322
views
Custom shader script in compositor (de-linearize depth buffer)
Some months ago I wrote a minimal opengl 2.5d game engine with pre-rendered backgrounds (such old Resident evil, Alone in the dark and Final fantasy games). Depth is managed through a grayscale image ...
- 3,072