Unanswered Questions
2,847 questions with no upvoted or accepted answers
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
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
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
202
views
Filmic color management and masks
I recently had the problem of having to mask (rotoscope) some footage in the movie clip editor and render out some elements to put in there.
For rendering those 3D elements, I wanted to use the filmic ...
- 984
6
votes
0
answers
212
views
Scatter objects with different forms and sizes on flat surface without intersections
My goal is to make a node group that can distribute random objects over a given surface without (noticeable) intersections. I suppose the surface is flat, but it can be different forms (rectangle, ...
- 36.1k
6
votes
0
answers
141
views
Recreate Solidify Thickness Clamp in Geometry Nodes?
I am trying to build the Solidify modifier in geometry nodes. Generally this is simple as there are many ways to offset a copy of the geometry. And we have Extrude to create the Rim. However, I am ...
- 6,647
6
votes
0
answers
1k
views
Blender Geometry Nodes: How to find vertex neighbor id's and positions
Given that Blender Geo Nodes "Vertex Neighbors" nodes only outputs only the neighboring vertex and face counts and NOT the point ID's and positions, how is it possible to get the neighboring ...
- 2,364
6
votes
0
answers
977
views
How to get access to Armature pose bones info from Geometry nodes?
I have an armature with several bones, each of them I would like to use to control transforms of other objects. Normally I would either directly parent objects to the bones or use constraints or ...
- 1,111
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
0
answers
308
views
File output node and output panel both exporting during animation
I have an animation ready to render but there is a small annoying issue. I currently have a basic file output node to export the raw render and a mist pass and they are both set to export to the ...
- 49.5k
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
68
views
GeoNodes: How to use captured positions from one set of points and offset individual mesh island positions using the captured positions
Link to the blend file (uses Blender 4.0):
My question is a little long, but hopefully with the screenshots it becomes clear what I am trying to achieve.
Here's what I have so far in my geometry ...
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
625
views
Is it possible to control the radius of the skin modifier with geometry nodes?
Is it possible to apply to an object (formed by only vertices) a skin modifier, and then control the radius of the modifier using geometry nodes?
This means that the object would have two modifiers, ...
- 383