All Questions
35
questions
0
votes
0
answers
78
views
How to write a python code for changing color space of image texture attached to normal map as well as strength of normal map?
I want to write a code for changing color space of all image textures attached to normal maps as well as strength of all normal maps to 1.
- 29
1
vote
0
answers
58
views
Cycles render in background exits with error in Blender 2.91.0, on Linuxmint
I have now a recurring new problem: when I want do render a simple animation the program stops with following errors:
...
- 11
1
vote
0
answers
157
views
Adding a nodes tree from my own material instead of Principled BSDF in Python
When you click the "use nodes" button, the Principled BSDF node appears in the shader editor connected to the output node, and the properties of the Principled BSDF node appear in the ...
- 23
1
vote
0
answers
153
views
Hair on diffuse color pass is black and has no albedo information?
I have a object (face with hair) and I want to get the albedo from my diffuse color pass in Blender 2.8. I only get the image without hair. How can I get the whole image or just its albedo color? I ...
- 11
1
vote
1
answer
418
views
Assign Materials based on mesh name
our workflow for a job requires us to import alembic meshes from maya and render them in cycles.
I would like run a script that looks at the scene mesh names and assigns the corresponding material.
...
- 19
0
votes
1
answer
171
views
What's the best way to build a GUI for non-blender users to control materials?
OK so I have a scenario whereby my colleagues are creating an image and overwriting a texture, they can then open a blender file and hit render to get an image showing off the design. However I need ...
- 35
2
votes
0
answers
313
views
Checking for node tree update
I would like to check if a cycles material has been updated since the last check.
The easiest way to do that would probably be to store the nodetree somewhere and check against the current node tree. ...
- 666
1
vote
1
answer
851
views
Make material local?
I have linked a group of meshes. The geometry needs to be linked in case I want to update the imported architecture model later, and keep all my new materials setting and attribution. (I model in ...
- 1,942
1
vote
2
answers
69
views
Possible Python Automation With This Particular Material
I just had a quick question. I am starting to get a bit more adequate with Blender in terms of getting to photorealism. In the picture below is a model that I got online and I am wanting to edit the ...
- 367
0
votes
1
answer
760
views
What type of normal and specular map nodes is correct for these textures
I am creating a plugin to import some model files from a game to blender, with all the textures and materials created automatically. I am creating a principled bsdf node from python and assign ...
0
votes
0
answers
186
views
Link Image Texture Path to Object Name
I have a material node setup in cycles that I am trying to get an image texture file path to automatically updated based on the name of the object that the material is applied to. For example, if the ...
0
votes
1
answer
524
views
How to keyframe changes to assigned materials in Cycles
I'm trying to set-up an animation where each frame renders an object using one of several materials with the whole sequence rendering out all the material variations. Unfortunately, it doesn't seem ...
- 295
0
votes
1
answer
3k
views
How to add/remove links to existing or new nodes using Python?
I have lots of objects consisting of many different meshes. Some of these meshes come with transparent materials applied to them. My goal is to modify the nodes list, add new nodes and change the ...
- 3,062
1
vote
1
answer
434
views
How to select meshes with transparent materials applied to them only?
I want to select all meshes which a transparent material (e.g. glass) has been applied, when using Cycles (if it matters at all)? I just know how to select meshes with any kind of material applied to ...
- 3,062
3
votes
1
answer
1k
views
Change field of a node in a group
I am trying to make a script that will change the value of a specific node within a specific node group. I have seen from this question how to target a node within a material, but I can't see how to ...
- 6,647
2
votes
1
answer
262
views
Python to Replace Skechup Material to Cycles Material
I'm using the Blender to make all my works university (architecture), but in my job the people use Sketchup for modeling and V-Ray for rendering.
I want use Blender, cause liked more then others, the ...
-1
votes
1
answer
483
views
How to convert a cycles material node setup to a python material generation script?
Is there a way to convert a cycles material node setup to a python script which in it's turn can generate a new material with the same node setup?
Also, is it possible to somehow retain the x,y ...
- 2,098
2
votes
2
answers
2k
views
Getting the image of a texture node that feeds into a node group
I have a Cycles material node group like this:
I can access the user-specified color (red) like this:
...
- 65
2
votes
2
answers
1k
views
cycles adding texture to face via python / import script
I am writing an importer for a custom file format. So far I have created my object:
...
- 103
5
votes
1
answer
787
views
Graph bar with elevation/height values
How can I get a graph legend that automatically gets my maximum and minimum elevation from an object?
Basically, I have an object that dinamically paints other with waves. I have a node setup that ...
- 1,263
2
votes
2
answers
397
views
Same Video on each face, but with different time delay?
iam looking for a way to - like the title says - i want to put the same video on each face, but with different time delay.
In other words, i want to create a kind of videowall.
i found THIS:
...
- 503
2
votes
0
answers
327
views
Custom Python Nodes: Calling Group Node
I am writing a custom shader node that essentially "Calls" a predefined group node into the code.
Here is the group node I am looking to call:
I am using the "CustomNode" template that is packaged ...
- 524
1
vote
1
answer
2k
views
How to change a material with python in blender?
I have a basic panel script with 3 buttons made with an enum. Those buttons are meant to change two materials of an object e.g. the 'silver' button would change the materials to the silver materials ...
- 1,200
3
votes
3
answers
1k
views
Any way of serializing Blender cycles materials data?
I am searching of ways to serialize Blender Cycles materials to files using Python. But as of now I've found no such ways.
Maybe by writing the data of the materials to files but how can I do that? ...
- 203
5
votes
2
answers
283
views
Accessing image texture uv channel connected to Cycles material Image Texture
Trying to figure out how to read the uv channel used by an Image Texture input from Python. So, in effect, how to access the "Vector", then grab the attribute name:
- 121
3
votes
1
answer
272
views
Setting all default_values of nodes to 0 does not result in expected black output
What I am trying to accomplish?
I am iterating over all nodes of one named material from the output node and going backwards and want to set all inputs.default_value to 0.
I use the Code from ...
- 161
4
votes
0
answers
749
views
Copy node tree from one material to another in cycles using python
I have two cycles materials (say source and target). I want to copy the Shader Nodetree from the source material to the target material after clearing any currently present node tree(s) in the target ...
- 257
3
votes
0
answers
389
views
Example of creating and setting a Cycles material node with the Python API [duplicate]
I'm trying to set the properties of a Cycles material, which is linked to a Plane object, using the API.
So far this is what I'...
- 115
7
votes
1
answer
4k
views
How to set a background using the cycles render engine with the API
I'm just getting started with the Blender API, and I'm trying to set the background texture using the API.
In the GUI, I do the following:
Choose the Cycles render engine ...
- 115
2
votes
1
answer
403
views
Extracting a text string info (character's indices) to use it as a material mask
I think an image can say more than words sometimes... :)
The idea is to use a different color from the color ramp for each character in the string.
It's related to this question
- 8,284
47
votes
3
answers
28k
views
Control Cycles/Eevee material nodes and material properties using python?
How can I define the different properties of an Cycles/Eevee material? Such things as glossy, glass, diffuse, RGB-color, emissive via python scripting?
- 1,047
41
votes
1
answer
51k
views
How to assign a new material to an object in the scene from Python?
How can I assign a new material to an object in the scene via Python?
- 1,047
2
votes
1
answer
560
views
How to check if object is cycles light source?
My first idea was to get the surface type of the material. If this is an emission shader it should be a light source, but I can't find something in the python documentation to get the surface input.
- 16k
3
votes
1
answer
388
views
copy linked materials nodes to local material
DISCLAIMER: I rewrite my post upon the latest success to not flood my own post with already solved parts so I left only the part that really is still not working...
PROBLEM:
I need to replace all ...
- 111
15
votes
2
answers
3k
views
PyNodes, the bare basics
I know it's a very new thing (post 2.4 era anyways) but there seems to be very little documentation and examples for PyNodes in general, and the little there is doesn't seem to work in latest SVN (...
- 10.8k