Unanswered Questions
1,820 questions with no upvoted or accepted answers
8
votes
0
answers
299
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
642
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
201
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
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
307
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
148
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
320
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
5
votes
1
answer
906
views
get this gradient style in blender
I'm trying to get this gradient style:
My best result are with eevee with volumetric and gradient on a metaball, but i cannot figure out how to get the gradient fill the totally of the metaballs like ...
CommunityBot
- 1
5
votes
1
answer
2k
views
2.80 - use Eevee and Cycles together for motion blur issue
I have one question about one problem in my experiment with motion blur in Eevee. I know that in this time is not supported and maybe will be supported in future official release as another primary ...
CommunityBot
- 1
5
votes
0
answers
696
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
203
views
Can Blender Internal Render passes be put back together again?
I'm stuck with a simple task. I need to tweak some render passes of the image, and then put them back to the combined composited image. For Cycles I use this scheme from the manual:
It works as ...
CommunityBot
- 1
5
votes
0
answers
409
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:
...
- 158k
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