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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14 views

Glare node issue

I have been experiencing strange glitches with the Glare node in the compositor. Frankly, I cannot quite figure out what causes it, since it seems to depend on randomness—frame, camera distance, the ...
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2answers
21 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.
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1answer
27 views

Blender compositing, blur node problem

I am using mask for motion tracking scene, and I want use blur for mask in compositing. what is problem: blender node is bluring mask and make it larger, that causes problem for me, is it possible to ...
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1answer
30 views

Invert primary values in a photo

I am interested in trying to edit infrared photographs in Blender to match this process. In this process, the user uses Photoshop's Channel Mixer to swap the values of red, green and blue channels (...
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1answer
22 views

Transparent shadow not appearing in viewer node

I am trying to create a transparent shadow using the compositor in blender 2.8, i used a image invert and viewer node to get rid of the white portion of the image, but the changed image wont show up ...
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Combine layer with indirect Gloss without hdri in Composite

I want to combine two render layers and a video clip. In the first layer I got My Object, in the second one I have a mirror. This all is lighted by a hdri, which I checked for Transparent in the ...
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19 views

Blender 2.8: link Render View to a single View Layer for rendering (multiple viewlayers, multiple cameras)

I've got several Collections (created with bpy.data.collections.new()), each consists of its own Area Light and multiple Cameras. I've got a View Layer (...
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Z-Combine desaturates reflection Layer

I am trying to combine some layer in the compositor with Z-Combine but in the last step the reflection is loosing its color. In the top of the first picture you can see the part of compositing that ...
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17 views

Karaoke like subtitles - which mode/view to use?

my goal is to add some nice effects (karaoke like) to a video. That would be eg - smooth color change/dancing ball (like here https://youtu.be/6Zqx7kOAHas), magnifying glass, focus change. With ...
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1answer
29 views

render compositor only in 2.8

I am creating a transtion render animation using two images. I have done it before in 2.79 and used render layers to render the compositor nodes only. However in 2.8 this option is not available, and ...
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why blender motion track didn't render the movie?

I build a motion tracking animation, but the render result didn't shows my video. I make sure my nodes are linked right. what's wrong with my animation? please help me!
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1answer
22 views

Partially disable File Output Node in compositing?

A File Output node like this ... ... will generate several images at once (here: A001.png, ..., A250.png and B001.png, ..., B250.png and C001.png, ..., C250.png, all in folder D). For reasons ...
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Problems with Render Layers

I seem to have nothing but problems with compositing and Render Layers. :-\ Every tutorial I’ve followed so far on Blender Guru, I’ve been unable to replicate the process whether in 2.79 or 2.80. As ...
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10 views

How can I make eye brose appear in front of a hair fringe?

I am trying to make eye browse appear in front of a hair fringe to make better facial expression. Vitualize it as adding eyebrowse to the monkey. I am thinking about using composition node, but I ...
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46 views

Blender 2.8 Exclude view layer doesn't work?

Ok Ive read Blender 2.8 View Layers - "Exclude" feature and related tutorials, but I'm trying to exclude a reflection plane and ground plane from a render layer. They are in their own ...
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1answer
13 views

ID mask noisy when using Volume Scatter for World volume

I've made a sword in this medieval blacksmith scene an ID mask so that I can give it a glare effect without affecting the rest of the scene, but because I used Volume Scattering for the world volume, ...
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101 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 ...
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1answer
17 views

Blur specific area in compositor

Why this node composition doesn't blur the Material.018? What am I missing?
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1answer
22 views

Background image not appearing in motion tracking render

I have another project that is exactly like this one but that one works, even though they have the exact same compositing setup. Any reason why this one doesn't show the background? Blend file: https:...
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102 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 ...
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1answer
17 views

Index material in 2.8 (Cryptomatte)

I have a lamp. Behind the glass is a source of light. I want to apply effects to the light source in the composer. Previously, this was done using a material index. In 2.8 this isn't possible, there ...
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14 views

Struggling to render a 3D model or effect on an image

I'm a bit lost with this. I've managed to composite using a video, but that was following a book and I still struggled. I guess compositing is not my forte... At the moment I'm struggling to render or ...
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1answer
30 views

How can I force the Compositor to update via Python?

While working on an Add-on that does node connection stuff, I came across a problem I can not find a solution to anywhere: The compositor nodes are only ever updated / evaluated, as long as there is a ...
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31 views

Eye gone dark with light

I'm having trouble with the eye, I been follow tutorial of making an eye then it skip the set of light and my eye came up with very dark glass. I've been researchin for a long time but nothing helps. ...
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1answer
16 views

Rendering scene background in only some frames of an animation

Is there any way to render a specific scene, say the background, during only the second half of an animation while the foreground renders the entire time? For example in a 100 frame clip could I get ...
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1answer
25 views

alpha over node is adding to the foreground artifact that is not in the background

i'm using blender 2.8 beta and i'm trying to conduct a test in which i make a lightsaber without volume for the haze so that the rendition isn't to long, so i used 2 view layers (used to be called ...
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Motion tracking, background video not showing behind my scene

When i render the video is not playing in the background, it is just black. Edit; it's not black it's whatever I set the background color to.
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How to make one value influence another value in the node editor if theres no input socket?

I am currently trying to have a node setup where a value node output is linked to the Mix input of a Glare node. However, there's no input socket for the Mix input, only a number value. Is it possible ...
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1answer
62 views

How to set backround image in Blender 2.8 [duplicate]

I am trying to set a background image in Blender 2.8 Beta. The image is what I have right now for nodes. I set it to world node and it has a background when I render it but it is all mixed up.Do you ...
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1answer
24 views

How to Make Semi-Transparent Edges Opaque?

The edges of a mesh show up as semi-transparent when rendered on a transparent background. Using the Set Alpha Node makes the edges opaque but fills them with black. I want the transparent edges ...
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1answer
41 views

Freestyle Background color not white?

I'm following this tutorial and I've set my compositor up in the exact same way as he did, except my background is like a slightly light grey and I don't know why. In his video's he's getting a ...
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1answer
49 views

Acheiving Slit-Scan in Blender's Compositor

Is there a way to make a slit-scan technique effect in the Compositor? https://www.instagram.com/p/BV3G1tYF5Q-/
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40 views

Fire and smoke to transparent in final render [duplicate]

I'm having a hard time rendering a fire and smoke simulation. I wanted to record a animation and get the .pngs wiht alpha channel, but in the final render the objects in my case a meteor is ...
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29 views

background not being rendered

I'm making a big project with the delorean as you can see.. but when I made a test render and the image didn't have the background on it. I didnt mess with the compositor..I'im using blender 2.8 and ...
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14 views

noise.random always outputs the same value (Blender 2.80, Python, Compositor nodes)

I have code that procedurally generates images with a lot of random values for models, lighting, textures, etc.. Part of this process is randomly shifting hue/saturation/value in the compositor to get ...
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28 views

Compositing multilayer EXR. Some layers are red only (no green or blue)

I rednered my image using Renderman for maya and saved it to Exr File with AOVs. I would like to compose it inb Blender. When I import exr file to compositor, all AOVs are present there but all of ...
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18 views

How do I set up a view/render layer in compositing to not be affected by a certain light source in Blender 2.8?

In my scene I have the earth, a head, a sun light, and a normal light. I want the sun to ignore the head or the head to ignore the sun, but the normal light should still affect the head. I also have ...
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19 views

Compositing a back plate so the mist pass does not affect it

I am rendering a city scene and I am using the mist pass to give a sense of depth and distance. I am using an image for the back plate background image. How can I alter my node setup below to stop the ...
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77 views

Environment Pass in Eevee

What I'm trying to do is render a simple sun and world separately in order to do some compositing on the sun. I needed alpha on the sun to do that so I made the environment transparent. The problem ...
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46 views

Is it possible to use filmic and raw in a single video?

I am currently doing a motion tracking scene where the compositing looks like this : The problem I am facing at is that I want my foreground layer to be rendered with a View Transform that is ...
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1answer
74 views

Is there a way to utilize emissions in VFX?

everyone. I have a piece of footage that I have motion-tracked fairly successfully, solved the camera motion, and made it into a 3D scene with that little button on the left of the motion-tracking ...
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1answer
69 views

Cycles shadows different in live render and final render

I'm a beginner in blender and i can't figure out why the shadows in my scene are different in live render and final render. The shadows seem to be less pronounced in the final render. That makes it ...
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1answer
66 views

Compositing Workflow/How to compose a render after restarting Blender?

I'm new to Blender (coming from C4D) and currenty working on an architectural visualisation like this: The Image is a placeholder because I can't show the project. I made three view layers Clay ...
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1answer
31 views

Is there an external editor like the compositor in blender? [closed]

I know you can do to much stuff in the blender's compositor but it is too unfriendly for me. Do you know of program which has all these things like glare, vignette etc., all these presets ready to use ...
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57 views

Create Dust on Camera Lens Blender

I'm interested in creating a dust/flare effect using the Compositor something along the lines of the below: To be honest, I'm still quite new to the compositor, and don't really know where to start ...
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12 views

Update interface after selecting compositior node

This script should select specific Viewer node in order to get proper image for Viewer result (to get pixel values later) ...
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1answer
101 views

How to render depth pass with alpha channel transparency in cycles?

I have a 3D object in the empty scene. I can click on the "transparent" checkbox to make a render with a transparent background. How can I render depth (or any other) pass with transparent background ...
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25 views

How do i make the background of an overlaid video transparent?

I want to overlay this mp4 video over an image as shown. How do i remove the white background from the video clip? Chroma key seems to affect the grey part and not the white background itself.
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1answer
44 views

Energy (glow) effect

I am having an issue with this render. I only want the circular energy in the image to glow, not the whole scene. It was working before i saved it. Then when i came back to the saved file and rendered,...
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1answer
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Creating a Stereoscopic video from a Movie Clip using Blender Compositor

I am trying to use the blender compositor to perform this conversion process to create a SBS video for use on Google Cardboard. In principle it works by manipulating each individual frame in a movie ...