Questions tagged [compositor]

Questions pertaining to Blenders internal image compositor. The compositor is used for manipulating the final result after rendering.

297 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5
votes
0answers
166 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
272 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
396 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 ...
4
votes
1answer
841 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
114 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
120 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
1answer
1k views

How to update compositing nodes via script?

I create some nodes in compositing via python script: ...
4
votes
0answers
210 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
0answers
388 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
118 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
213 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
78 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
100 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
94 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
188 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
77 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
72 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
971 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
1k 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
0answers
53 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
35 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
85 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
2answers
71 views

How can i obtain a 247 white in blender 2.8?

I want to obtai a 247 white background.In blender 2.79 to obtain this you should set the RGB (R=0.930,G=0.930,B=0.930 and A=1).In blender 2.80 the result is not the same.I obtain a grey color.
2
votes
0answers
1k 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
3answers
252 views

Cycles rendering dim lighting

This has been going on for a while now but I just want to fix this. I have a nice bright scene in the viewport, but then when I render it, it looks way too dark. Here is the .blend https://drive....
2
votes
0answers
120 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
119 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
205 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
86 views

How to add a vibrance value to a render in post processing

Is there a way in Blender to add vibrance? I have a render which I'm trying to add vibrance to in Blender, not in Photoshop (which is what I've been doing, but is tedious). I know there is a ...
2
votes
0answers
75 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
295 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
1answer
1k views

Live, real time video, compositing onto a virtual studio

Is there a way to use Blender and (say) a 3d virtual "tv studio", together with input streaming from a camera into the application in real time? So, from a physical camera > USB input > here I am ...
2
votes
0answers
86 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
421 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
431 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
255 views

Combining two renders with different seeds

So I've been dinking around with the NetRender function in Blender, using an addon I found to enable GPU NetRender functionality, I'm looking to render single images across multiple slaves My first ...
2
votes
0answers
525 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
98 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
57 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
69 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
762 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
498 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
462 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
159 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
284 views

Interlace frame numbers with file output node

I have a setup in the compositor that takes a piece of footage, does some operations, and outputs 3 difference files. Let's call them output A, B, and C. I have the file output node with added sockets ...
2
votes
0answers
84 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
128 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
150 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 ...

1
2 3 4 5 6