Questions tagged [compositor]

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

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Compositor Glare Node

I have recently been learning the compositor feature and have been running into some confusing issues. When i connected the glare feature to add glow to a scene, absolutely nothing happened... also i ...
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Is it possible to get the Compositor File Output image sequence to match the Rendered video?

I've done some basic Compositing starting with a sequence of EXR files. All I put was a Glare Node, Composite output, and File Output. In the Compositor I set the file output to PNG and specified a ...
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How do you import images onto planes using nodes

I have an image and I want to display it on the plane. I searched Google and found that I can use images as planes but if I ever want to change the image I would have to redo the image and all the ...
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Cryptomatte seprate rendering

Is there a way to make (for example) 10 different cryptomattes and render them as separate layers so I can edit them in photoshop? To be exact I have a visualization with 10 different materials and I ...
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Cryptomatte Picker Colors

Here is my setup. Question is that the picker pallet is very limited and I want to increase variety of colors so I can choose specific materials easier. (I know I can make end result with as much as ...
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27 views

How to make a 90s Cel animated look in blender

I'm trying to created the Cel animated look in blender but with 2D animation beside, mimicking the style from the 80s and 90s I feel like theirs some nuance to it that I need to set up nodes for. ...
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10 views

Problem in render image with cycles . objects with emission seem to form large white lines after compositing

i was just rendering a teaser image for my model to post on twitter , so i thought this setup would look good >>>> the light emitting objects used just emission node with a strength of 10 ...
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1answer
24 views

ColorRamp outputing unsollicited color variations despite using constant mode

I'm using ColorRamp to limit the colors of my render to only a couple of colors. In the outputted image, there are still slight variations of the colors set in the ramp and I can't get them to stop ...
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8 views

Export LUT from nodes

Blender's compositor can be really cool to change colors, but it's really to slow to render a full movie. I was thinking to do some color management in Blender (notably using the HueCorrect node that ...
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Frames Shown in Movie Editor>Mask Mode does not Match Frames Shown in Compositor

I've been tracking some footage for a project, and wanted to mask out some of the tracking markers I placed in the area I filmed. The first tracking marker worked fine in regard to masking, but for ...
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Render using a fixed color palette for pixel art

I'm looking for a way to have only a set of predetermined colors in my render, to generate pixel-art with those colors only. The closest I got to the desired effect was by using constant color ramps ...
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451 views

How to generate Reaction Diffusion animation?

How to create Reaction Diffusion as animated texture (image sequence) in Blender?
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Is there a formula for processing a rendered area in compositor without affecting other areas?

In various scenes I have areas that could be isolated using cryptomatte or material id or view layer and I want to effect that area only. With colorramp, the result applies color to the entire output ...
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how to import rotating object into After Effects

I've made my first rotating planet object in Blender (2.9) but would like to import this into After Effects (latest version). I don't want to lose the planetary rotation though. Is there a way to do ...
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Blender Compositor: Creating a precise black and white mask

I am trying to create a precise black and white mask for objects rendered with Cycles. The background is transparent. The standard alpha mask creates semi-transparent pixels. I would like to create a ...
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1answer
50 views

How can I change multiple properties on the same and different nodes at the same time?

I'm working in the compositor, and I have several blur nodes that look like the following: I want to make it so that I can control both the x and the y values at the same time. I also want to make it ...
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1answer
26 views

How to key out a white background in compositor?

I've been trying for hours to remove my white (well, grayish white) background from a video, and I thought you could remove it with keying nodes in the compositor (cycles). I managed to get somewhat ...
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1answer
26 views

Why is the color ramp in the compositor treating my transparent pixels as black?

I have a scene that renders to black, white, and grey pixels, with some transparency in between. Here's what that looks like: When I use the following color ramp configuration: I get rid of the ...
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1answer
26 views

Denoised render's shadows too distorted without Indirect light clamping - too opaque with Indirect clamping. How do these interact? [duplicate]

You can read in my previous thread about my struggle with this part. I made a milestone just now, increasing Indirect clamp will remove the fireflies, however the shadows are now too opaque. Render ...
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1answer
33 views

Discontinuous large values in depth map

For my project, I save rgb frames (PNG format) and the depth maps (EXR format) for different camera views. The compositor setup I use is shown here and I use Cycles. When I read the raw depth values, ...
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1answer
30 views

Complications with rendering and compositing nodes

I'm trying to create a bloom in the Cycles render engine, I believe I have successfully created it but unfortunately, I'm having some trouble rendering the new nodes: Here are the nodes (notice the ...
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31 views

Render result does not show up in compositing?

I have a weird issue when trying to get a smoke simulation with a transparent backround (transparent film is on). 1. One is that i don't get the show render layer option in the compositing nodes, as ...
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1answer
29 views

How to change file output node's file subpath value in python

I want to change the value of File Subpath of File Output node in Compositor from python. I'...
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9 views

How to set up render layers for large project

I am working on my biggest project yet, it’s a video of the Falcon 9 rocket launching and landing from a launch pad. It’s around 4500 frames long. How would a professional animator split up the ...
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How can I make sure a billboard is a specific size on the final render?

I'm adding particles which are billboarded to the camera, so they never rotate. Is there any way to make sure they also stay the same size, so that in the final render the are the exact same height ...
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Compositing results in a black screen, even if output is hooked up

I've got a render which displays as intended when I turn compositing off, but shows a black screen when compositing is turned on in my render settings. I've attached a screenshot of the graph. I think ...
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19 views

Creating a height map through blender's compositing

Hello I know that it is possible to make a height map from your sculpt using the compositing window by taking the Z depth out of the render image and then applying a gausian blur. I know how to add a ...
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Can Blender render a Compositor graph on an input images supplied via command line

Is there an existing workflow in Blender that can facilitate changing the input images on a Compositor graph and render the result from the command line or do I have to code my own solution similar to ...
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1answer
70 views

How to blur a single object, Layers dont exist anymore? (2.92)(Permanent interface changes confuse every new user)

I've tried to find a solution for 2.92. As the title suggests I am not able to do this simple thing. I want to blur a single object, not motion blur with he camera I mean simply blur an object. I have ...
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In the compositor how do I export a video file - when I select FFmpeg as output, file export defaults to OPENEXR

So I've rendered out the files as a image stack but want to render it to a video file. I reimported the image stack into the compositor and added file output (changed the OUTPUT type to FFMPEG (as per ...
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36 views

How do you get 2 render layers from an exr file?

I am compositing a scene with 2 render layers. I saved it as an image sequence of EXR files so that I can close the program. However, after compositing, the Exr doesnt keep data from separate render ...
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1answer
38 views

Any way to get a multilayer video?

So I have an animation that I am trying to render in cycles. It takes about 20 mins per frame (my pc isn't amazing) and is 200 frames. I want to render the animation overnight, close the program and ...
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1answer
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I want to remove one object from my render so that it leaves just a transparent background

I want to remove the pool water from my image, so that there is only a transparent background, so that I can add the pool I rendered in luxcore in photoshop. Right now, because I could not get it to ...
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25 views

My reflection doesn't show up when I save the final rendered image

I have been trying a lot to save the reflection when I save my final render but for some reason I can't save the reflection in the final image... When I render the scene, the final image is OK, but ...
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18 views

How to composite animating sunbeams?

I know how to keyframe to animating those value but, i want to animating sunbeam parameter using where directional lighting is watching. I don't good at math and english it's so hard to solve this ...
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106 views

Using extremely large objects and small objects in the same scene?

I want to make a sci-fi animation, but whenever I make something like a planet to scale relative to a spaceship, I seem to be getting weird floating point inaccuracy errors. How do I handle a ...
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What am I doing wrong with Alpha Transparency, Mist, and Z-Combining?

Context Hello, so, currently, I'm working on a project to practice photorealism and other stuff. And about a week ago, I've received this problem where the Posters and Graffiti (which are planes with ...
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1answer
21 views

Compositor Blows out Image

I am exporting into half EXR's with ACES_cg (would full help?) But as you see in the second image the compositor output is blown out. But when I take a look at the EXR it is not blown out but still ...
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1answer
22 views

Composite output window differs from viewer

I have a very simple setup in my compositor: Simply an image and a mask: I want to mask out parts of the image that it is fully transparent except for parts of the image. The final image should look ...
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1answer
37 views

Composite cryptomatte video

I’m working on a small animation/film, I will render the frames out as PNG then sequence them together. How do I use the cryptomatte/render passes feature on this animation because when I add an ...
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21 views

Nothing is showing up on my compositing panel

I have the nodes turned on and have even added things to the space, anyone have any solutions?
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1answer
47 views

How to circularly fade an image to alpha in compositing?

I'm trying to circularly fade an image into transparency in the blender compositor. My approach was to use an Ellipse Mask in combination with the Set Alpha node, so that the picture becomes more and ...
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1answer
32 views

Is it possible to make glares brighter

I have planned to use the glare as a simple light flash, kind of camera flare. I noticed the glares are quite dark: It looks nice with dark background, but on the main animation, it pretty much ...
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12 views

Is there anyway to reduce an image size without getting noise?

i was triying to reduce an image size right in compositor, using a scale node, but when i render it the image get a lot of noise. i tried reducing to the same size in other software and it works ...
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1answer
33 views

Key Color still shows in sort of a torn manner

I am keying an image and I have a problem on the screen: the Key Color is showing in some sort of a torn manner. EDIT: I keyed out the blue color, but other colors still remain.
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1answer
17 views

Why isn't the Image Editor showing the denoising image like in the Compositor?

I am fiddling with denoising a set of images but the image in the Image Editor is not denoised as in the Composition Tab. Is there something that I am missing to do? I have already tried detaching and ...
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1answer
109 views

How do I denoise an image sequence that has already been rendered?

I have completed Andrew's donut tutorial and I have a full set of 30 frames that makes up the image sequence. I opened another Blender tab (closing down the tutorial with saving) to compile the frames ...
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2answers
62 views

Can I name an output file from an output node?

When I give a new name to a File Output, Blender ignores it. It is using this name to create a new folder instead in which it is saving the image. Can I give a name to an output files or can they only ...
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1answer
30 views

Car model does not render after using motion tracking, but its visible in viewport

I am fairly new to Blender.(I am an experienced Maya 3D artist) I'm using version 2.83 on an iMac. I have rendered simple 3D models before using blender and the Eevee engine. But I need to test motion ...
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1answer
19 views

How can I output the Compositor result instead of the Render Result when rendering an animation?

I have a File Output node in the compositor to output my composited images for my animation. I put the same output filename (e.g. "anim_###.png") in the <...

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