Unanswered Questions
1,554 questions with no upvoted or accepted answers
7
votes
1
answer
319
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
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:
...
- 217
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 update compositing nodes via script?
I create some nodes in compositing via python script:
...
CommunityBot
- 1
6
votes
1
answer
2k
views
How to crop image based on Alpha in Compositor?
I wonder if there is any way to crop a image based on alpha data like this:
The reason I want to do this is that I want to crop the White area of another image (of the same dimension to the Alpha ...
CommunityBot
- 1
5
votes
0
answers
270
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
749
views
Control image texture source from outside node group
I'm working on turning a cavity node setup I found online into a node group I can append to my blender files.
The setup uses several mapping nodes (that I already converted to math nodes so the ...
5
votes
0
answers
424
views
Rendering to Viewer Node in headless mode
I'm running Blender 2.79:
/path/to/blender -b empty.blend -P script.py
With script.py:
...
- 159k
5
votes
0
answers
2k
views
nVidia skin shader with the Principled BSDF
I've been using a skin shader primarily based on the Brecht skin shader, which is itself based on the Sum-of-Gaussians approach as seen in 14.4.7 from GPU Gems by nVidia. Its Cycles adaptation, which ...
- 51
4
votes
1
answer
108
views
How to check if NodeTreeInterfaceItem is Open Or Closed with Python?
Since Blender 4.0 there are these new panels NodeTreeInterfaceItem that can be added in the Group node, you can declare if ...
- 308
4
votes
0
answers
55
views
Dragging new link to an already linked node input doesn't delete the existing link: it switches it to the next input instead. How to avoid that?
Blender seems to have this default behavior when editing node trees:
If I have a node with an input that is already receiving a link, and I drag another link to that input, the existing link isn't ...
- 123
4
votes
0
answers
1k
views
How can I see the numeric values being sent between material nodes?
Is there a way I can just hover over, click a button, hold a key, or something, so I can see the actual numbers being sent between nodes? Is there an add-on or something? I'm tired of guessing.
...
- 14.9k
4
votes
0
answers
2k
views
Does Geometry Nodes use Memory or CPU when instancing?
When using Geometry Nodes what part of the computer
does it use when instancing, i.e., memory, cpu? When I try
to instance large areas the computer is unable to process.
My computer is 2014 ...
- 41
4
votes
0
answers
207
views
Custom nodes, node limits, and compile times
I am working with some very complex custom toon shaders in Eevee. This causes several problems. First, the compile times are atrocious. Second, I am in danger of hitting the node limit if I also use ...
- 6,739
4
votes
0
answers
251
views
How to stabilize Random Per Island for Meta Objects
I have a very basic AN setup where I vector jiggle the position of meta ball instances for a lava-lamp-like motion.
I wanted to change the color as soon as an individual Meta Ball disconnects from ...
- 1