Questions tagged [compositor]
Questions pertaining to Blenders internal image compositor. The compositor is used for manipulating the final result after rendering.
353
questions with no upvoted or accepted answers
6
votes
1answer
432 views
Trails Behind Projectiles
How would I add comic-like trails to projectiles, such as arrows? I have an example from YouTube, but the effect is done in another software.
https://www.youtube.com/watch?v=K4lmGGSsFYg
The effect ...
5
votes
0answers
176 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 ...
5
votes
0answers
341 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:
...
5
votes
1answer
1k views
How to update compositing nodes via script?
I create some nodes in compositing via python script:
...
5
votes
0answers
229 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 ...
4
votes
1answer
1k 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 ...
4
votes
0answers
149 views
Compositor File Output Node overwrite?
In the Output tab of Render settings, you can set the output options for rendered animation. One of the options is to have new renders overwrite the previous ones or not. The File Output node in the ...
4
votes
0answers
143 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 ...
4
votes
0answers
496 views
How can I join two splines in the mask editor?
I wanted to create a rounded equilateral triangle mask.
I started by adding a circle, deleting one of the handles, and adjusting the angles of the other two…
…and then copying and ...
4
votes
1answer
124 views
Why is my smoke bright on the edges?
I was doing some motion tracking and I implemented some smoke. Once I rendered the scene, there is this bright perimeter framing my smoke. I'm not sure if this is a bug or not but i would like to know ...
3
votes
0answers
55 views
How can I add an image sequence in the compositor with Python?
How can we use python to add images as a sequence into the compositor.
I am trying to add a transparent graph onto every frame of the render
I have successfully done this on the blender itself, but my ...
3
votes
0answers
247 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:
...
3
votes
0answers
79 views
Render only Nodes that Change
When compositing with Blender, oftentimes I'll end up with a large node graph, with most of the nodes not changing at all. However, whenever I add another node, even if it's not connected to the rest ...
3
votes
0answers
114 views
Best output file format for Photoshop
I want to use Photoshop for batch processing my images. What is the best file output for taking into photoshop?
I usually do openEXR multilayer when I use Blender's compositor.
3
votes
0answers
101 views
compositor rerender layer
This is my preview render in the 3D Viewport.
When I hit F12, I get this render result:
I achieved the render result in the compositor before I changed some things in Layer 1.
This is the ...
3
votes
0answers
206 views
The problem of distortion on the composite
Hi all, I have a problem. I will render an object, is simply a box, get the rendering, compositing, then distort it. As a result of rendering over a live video the cube is smaller and renders with a ...
3
votes
0answers
81 views
Better quality blur in the compositor
I'm trying to get rid of an artifact in my compositor setup:
I get these rings:
Is this a range problem with the information coming out of the nodes? Or is it a limitation in the image type/display?
3
votes
0answers
75 views
How to create an image whose alpha value changes according to a curve through time in node-editor?
I connected an image-node with a composite-node and connected a value-node into the alpha of the composite-node. I changed the values and the image changed its transparency.
Then, I connected the ...
3
votes
1answer
1k 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 ...
3
votes
0answers
1k views
how to render a composite created by scripting?
I tried my best to find the answer browsing the API doc and forums but here I'm stuck with quite an odd problem.
I'm developping an import addon wich I'd like to work as follows:
it opens a directory ...
3
votes
0answers
2k views
Antialiasing with compositor?
Is there any way to apply anti-aliasing to an image in the compositor? I have a complex compositor setup, and during the compositing, some of the anti-aliasing is lost due to the bilateral blur ...
2
votes
1answer
39 views
UV mapping node in the compositor. Why can't I subtract some pixels from the alpha channel with a mask?
On trying to answer this question, I can't subtract information from the alpha channel without running into borders that persist from the UV mapping node. Those borders come from the original image's ...
2
votes
0answers
78 views
Highlight compression (Blender/Cycles)
Does anyone have a smooth way of highlight compression in the Blender/Cycles settings, or in Compositor? The only compressor i have found so far is the Tonemap-Node in Compositor, and i find its ...
2
votes
0answers
33 views
Black spot in middle of Sun Disk when using Sky Texture, v2.90.0
Unsure if this is a bug or if I am doing something incorrect.
I have a World set up with a Background Sky Texture, with the following settings:
When rendering out the environment, no matter the ...
2
votes
0answers
54 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 ...
2
votes
0answers
93 views
Cryptomatte Boundary Artifacts?
I got Boundary Artifacts while using Cryptomatte.
I wrote a question on the same topic, and I read a comment that low resolutions could be an issue, and added a resolution perspective to write more ...
2
votes
0answers
63 views
How to get luminance value of every pixel from the rendered image?
This link below shows how to get value of RGB color and z-depth from viewer node, that corresponding to the value on the pixel information bar (figure below).
Link :
How to get Color and Z-Depth from ...
2
votes
0answers
408 views
How to disable word background transparency only for one View Layer on Eevee
Eevee doesn't have the Environment pass, so I'm looking for a solution to have one View Layer with the World background and another View layer with the background transparent to composite on top of ...
2
votes
0answers
2k views
why can't I render only freestyle stuff while using eevee?
I'm working on a cartoon character using eevee and I want to add freestyle to it. in 2.79 I used to render freestyle lines in a separate layer and since I only used cycles, I could just hide the mesh ...
2
votes
0answers
166 views
Why are the ID-masks and Ambient Occlusion outputs not pure white?
Whenever using ID-Masks (material and/or object) the result in the render output does not give me a solely black and white image.
The whites are slightly darker than they should be.
Even when ...
2
votes
0answers
181 views
Slit Scan/Time Displacement in Blender's Compositor
How could I make this slit scanning method used in this article?
https://nofilmschool.com/2016/11/how-to-create-2001-slit-scanning-effect
2
votes
0answers
417 views
Compositing an animation
I've rendered an animation in two series of images, with different lighting, and I wish to use the compositor to produce from these series of images the frames to be used in video sequencing. The ...
2
votes
0answers
82 views
Shadow very suppressed in compositor when goes against background
For some reason my render in the compositor is all weird.
Here's the problem: the background is not completely white and the shadows get suppressed.
If I render everything without the background ...
2
votes
0answers
384 views
Vector motion blur and Reelsmart Motion Blur
Is it possible to add vector motion blur to a rendered image sequence without using third party software like Reelsmart Motion Blur (RSMB) in After Effects? If not, is there a way to render a motion ...
2
votes
0answers
102 views
How do I apply Movie Clip edits to my video sequence?
I did some stabilization using the Movie Clip Editor and tracking. I understand that what I have done is just in memory. How do apply the changes I have made in the MCE to my strip in the Video ...
2
votes
0answers
473 views
How to apply lens polynomial distortion to an image
I have seen in the internet that it can be done using the Movie Clip Editor. So I import an image and introduce the parameters needed, but for some reason nothing happens and distortion does not apply....
2
votes
0answers
599 views
How to get Model to have an Outline
I've just finished sculpting a skull and now I want to create a render looking like that:
And freestyle just doesn't provide a similar result.
Here is my model:
And here is with freestyle:
Options:...
2
votes
0answers
585 views
Compositor output as texture in Cycles material? Better in realtime?
If there any way to use Node Compositor output result as texture or image in Cycles material/shader? Better in realtime?
Or use Compositor nodes in Material Node Editor?
May be any Addon to automate ...
2
votes
0answers
107 views
How do I apply effects made in the compositor to the Blender VSE?
I recently did some green screen compositing and color grading for some footage in Blender's compositor. I would like to learn how to apply these effects to a video strip in the video sequence editor, ...
2
votes
0answers
58 views
Motionblur on Cornerpin node?
after writing a script to import cornerpin data from Nuke, I just realized that there is no motion blur. Is there a way to turn it on, or is it just not supported?
Thanks
2
votes
0answers
79 views
Composite render layers from a different machine?
I'm using blender guru's method ( http://www.blenderguru.com/articles/how-to-render-a-complex-scene-without-crashing/) of separating my scene into different layers for rendering so that I can use one ...
2
votes
0answers
906 views
Compositor to VSE
newbie here.
I've been having trouble getting the video I chroma-keyed (in the compositor, of course) to show up in the VSE. After reading several of the answers to similar problems people have had,...
2
votes
0answers
526 views
Cycles & Blender Render for God Beams / Crepuscular Rays / Sun Beams
I'm having trouble getting the actual beam of light to show in the render of my image. What I want to do is create an image that looks like this:
However, In blender render I am unable to get the ...
2
votes
0answers
523 views
Creating Live, Editable (Audio Waveform) Oscilloscope in Blender
I've been searching the internet for hours to find the solution to my predicament, but to no avail.
I am trying to create a virtual oscilloscope within blender, which is editable in ways similar to ...
2
votes
0answers
161 views
Black output of animation render
I have a VFX video project that consists of two scenes that are linked together with complex Compositing. I want to render the whole animation, but after rendering both scenes, Blender does ...
2
votes
0answers
86 views
Material index pass on halo
I can't find material index pass for halo in Blender render.
Could you tell me how to set it up?
2
votes
0answers
131 views
Possible to script a custom node for Compositor for: Look, Exposure?
I use look exposure gamma a lot during rendering and modeling.
But I would love to be able to have those tools as options inside the compositor so when you render
you do it straight raw and later can ...
2
votes
0answers
157 views
How to create the effect of a flaming/electric cyllinder
I'm wanting to make another lightsaber movie. The first one I made, The Battle of Harris Beach simply used an animated cylinder that was motion blurred, colored, and then overlayed on top of the ...
2
votes
0answers
43 views
Modify light source so it will only create highlights and not reach into shadowy crevices?
My model has many protrusions and crevices. I am satisfied with the shadow that currently exists in the crevices, but the protrusions need more highlight to create a sense of volume. How can I ...
2
votes
0answers
105 views
Cyclic animation and compositor
I have set a cyclic animation(it repeats itself) and I've done the compositor settings.
I want to change some compositor settings but after first repeat of animation.
Second repetition of animation ...
