Questions tagged [compositor]

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

272 questions with no upvoted or accepted answers
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5
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0answers
164 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
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0answers
253 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
394 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
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0answers
97 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
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0answers
114 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
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0answers
358 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
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0answers
190 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
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0answers
77 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
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0answers
94 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
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1answer
944 views

How to update compositing nodes via script?

I create some nodes in compositing via python script: ...
3
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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
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0answers
206 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 ...
3
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0answers
185 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
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0answers
75 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
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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
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0answers
931 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
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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
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0answers
32 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
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2answers
47 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
1answer
606 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 ...
2
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3answers
186 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
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0answers
113 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
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0answers
97 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
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0answers
166 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
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0answers
76 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
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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
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0answers
254 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
999 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
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0answers
77 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
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0answers
411 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
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0answers
417 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
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0answers
246 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
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0answers
492 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
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0answers
97 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
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0answers
55 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
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0answers
68 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
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0answers
717 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
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0answers
488 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
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0answers
435 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
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0answers
158 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
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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
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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
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0answers
149 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
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0answers
42 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
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0answers
101 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 ...
2
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0answers
154 views

Matte Render from Alpha

An already rendered animation needs to have the background color-corrected. It will take too long to re-render the shot in full color. How do I turn the alpha channel of the combined layers (which are ...
2
votes
0answers
282 views

Cycles Integrating glass into live footage

I'm trying to integrate transparent objects rendered with cycles into live footage. The problem is that when compositing, even with alpha, the original grey sky is rendered through the glass instead ...
2
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0answers
298 views

Correct Shadow Pass in Internal?

I'm trying to extract a shadow pass in internal but it isn't looking like expected. This is what the render looks like: But the shadow pass looks like this: It brutally cuts off the side of the ...
2
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0answers
249 views

Bokeh defocus not working on certain frames

I'm currently working on a short animation (Blender 2.69 r60995) for an expo and i'm having a problem with bokeh defocus that it isn't composition on some frames, here's a gif clip: As you can see, ...