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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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How to set backround image in Blender 2.8 [duplicate]

I am trying to set a background image in Blender 2.8 Beta.I can set an image for a background but when I render it the background image isn't not there.I must be doing something wrong but I'm not ...
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9 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
22 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
36 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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29 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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26 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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10 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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23 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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13 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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0answers
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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31 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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0answers
32 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
56 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
58 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
42 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
30 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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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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9 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
52 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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23 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
39 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
14 views

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 ...
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20 views

Undefined socket in Compositor

I am trying to re-implement a compositor example of T yarn knitting. I cannot find plane MK2 and UV connector as had been explained in this YouTube video: https://www.youtube.com/watch?v=AG4-sGcGyWI&...
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16 views

Render outputs includes the scene incorrectly or uses the wrong input

I wanted to track just a single point in a movie. I followed a tutorial on YouTube which was also about motion tracking, but was more tracking motion in a 3D environment and placing blender objects ...
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47 views

Why isn't Blender 2.8 applying my compositing nodes when rendering a video?

Using 2.8 April 1 2019 build on MacBook Pro (17in - 2017) I'm trying to remove the yellow background from a video. Per instructions on youtube, I've managed to a decent job of removing the yellow, ...
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139 views

Blender 2.8 : how to render selected file output node in compositor without having to re-render the scene?

Is it possible ? it's silly if i want to just render a file output node then i have to rende the whole scene. Why there's no render button in this node so i can render only that node ? Also is there ...
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1answer
73 views

How to draw a Rotoshape (mask) in the Compositor?

How can I draw a rotoshape/spline in the compositor to be used as a mask, so that the mask/roto will also still be editable inside the compositing window without have to render the mask as image first?...
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2answers
73 views

Blender dosn't interpret the Colorspace of the imported Image in the Compositor correctly

I am facing the following problem: The imported image from the explorer, a 16bit PNG file, is not showing up in the correct colorspace (I think) in the compositor It's a PNG, so it has sRGB ...
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1answer
137 views

Isolate light cast on a surface through glass

I have a white plane and a glass object on top of it, with 2 spotlights casting light through the glass object. This causes a lot of light to be cast onto the white plane. I want to turn the plane ...
2
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1answer
87 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....
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1answer
43 views

Rendering image with lens distort node and transparent background

I try rendering my image as a png with an rgba channel but when I put on the lend distortion node in the compositer it makes it have a black background.
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1answer
45 views

Separate Red And Blue When Blurred

I want my depth of field to be separated like this
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42 views

Is composite able to be rendered by command line?

Could composite be done by command line too?
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1answer
29 views

Is there a way to disable composite effects on already rendered frames?

I rendered about ~170 frames with the glare node on and would like to look how the normal render looks without rendering those frames all over again.
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How to add motion blur to HDRI backplate? (example included)

I want to show motion like shown below but keep the far background sharp. As you can see above, the wheels and the road, along with the vegetation, are motion blurred but the background, with ...
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27 views

compare 2 stl files

I would like to compare 2 stl files. My goal is to receive a difference between enclosed files. The files show teeth before and after preparation. I would like to use Blender software to show how many ...
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1answer
36 views

Blender equivalent of GIMP Levels tool

I have been trying to replicate the effect of Gimp Levels tool in blender but could not quite get the same result as in GIMP. My attempt is summarized on the picture below, I tried to remap the values ...
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1answer
239 views

2.8 Eevee Composite Object over background lacking Transparency

Can anyone provide instructions on how to composite my object over an image background in 2.8, Eevee render? The problem is that the object is does not have transparency around it. I set a bounding ...
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1answer
36 views

Blender Cycles - Alpha Over Node - How to get a combination of two layers and get as result something like 1 layer over the other?

Maybe the title is hard to understand so I explain quickly. I have 2 layers, one with a flat text and the other one with the outline of the text (freestyle). If I combine both (with Alpha Over) the ...
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compositor : how can I use a render layer as alpha matte?

Is it possible to use a render layer as (alpha) matte for another render layer, and how ? Thanks !
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33 views

Render multiple view layers with layers starting at different times

I have 3 view layers, layer 1 has an object visible the entire animation. Layer 2 has an object visible for 2/3rds the animation, and layer 3 has an object visible for 1/2 the animation. While ...
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1answer
30 views

In node compositing, how do I delay a movie clip by any given number of seconds

I am creating motion graphics first in black and white, before colorizing them. I am doing that with only kinetic text and transitions. I am overlaying one video clip upon another, but I wish to ...
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22 views

Is possible to render different objects to different color channels with Cycles shader (w/o compositor)?

I have three texture mapped objects in a scene. The rendering of each needs to effect just one color channel of the final image. I’m currently able to accomplish this by assigning each to a separate ...
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53 views

Compositor pass mist shown in backdrop but not cycles render

I followed the cycles mist tutorial at How to use the new cycles mist pass in 2.68?. My problem is the mist displays as expected in the backdrop of the nodes window but not in renders or in the 3d ...
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1answer
45 views

Transferring colors from my Direct/Indirect passes into Color

I'm doing some compositor effects on my Cycles passes before outputting them to Krita and recombining them. But I'm running into a problem: Cycles stores a bunch of indirect light color in the Direct ...
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40 views

How to catch light without the object it is hitting on for compositing? (2.80)

I want to render a neon sign along with its emitting light on the wall behind. Then composite it to a real video with Camera Match. I suppose I'd need to render the light with transparency (somehow). ...
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1answer
96 views

Where has the Object Index from Layers has been moved to in 2.80?

I need to use the Object Index for a couple of objects. But as seen in the image below, it is no longer found in the Layers/Passes window. Thanks guys!
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1answer
17 views

Why isn't the animated object moving in the final video?

As you can see the little cartoon is animated (dopesheet keyframes), and I can see it moving in the 3D View port (lower right corner). But it'll remain at the center in the preview backdrop in the ...
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2answers
78 views

How to output a color ramp node in a material to it's own compositor pass? (2.79b)

Is it possible to output a color ramp node in a material to it's own compositor pass? I need to mask out part of a material which is controlled by a colour ramp, so I can add filters to that ...
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25 views

Hide (mask out) objects standing before the mesh

I have a scene that looks similar to this (but more complex) In the render it looks like this And I want to mask out the objects which are between the camera and the cube. Something like this: How ...