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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24 views

How to get a Sharp Render when mixing foreground and background ViewLayers in EEVEE?

The text has to appear sharp when blended with the background in the EEVEE compositor. However even on switching the text blend mode to Alpha blend,setting Mix node blend to "ADD" and ...
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Highlight compression (Blender/Cycles)

Does anyone have a smooth way of highlight compression in the Blender/Cycles settings, or in Compositor? The only compressor i have found so far is the Tonemap-Node in Compositor, and i find its ...
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1answer
20 views

Compositor viewer node output never updates when rendering via Python script

Based on this answer, I am trying to extract the per-frame RGB and depth arrays of some animation scene. However, the compositor render layer and viewer node setup that I am programmatically building ...
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Large values (Inf) in raw depth map

I render depth maps, in Cycles, in OpenEXR format (because I need the actual distances) and later read them in python using the openexr package. I save the depth maps like this: Connect 'Depth' of ...
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21 views

Why is `Alpha Over` compositor no longer blending values between 0 and 1

I have the following compositor nodes, that are supposed to add a white background behind my transparent render layer (using setting Render Properties -> ...
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30 views

Use of Fog Node from Pov-Ray in Blender 2.9

I have a question that I can't seem to find an answer to either in the Blender Manual and on Youtube. There is a new node that I noticed today in the compositor with its own category in the add-node ...
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19 views

Camera Background as shadow catcher

I would like to cast shadows on a camera background image sequence but without any shadow catcher primitives. Instead there are z-buffer, normal map and some others (like specular map etc) available ...
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13 views

The object covers/block all other objects in front of the camera while rendering

Issue: Object that represent my studio for rendering characters bothers me. It cover over all objects within it and stay in front of camera . And it only creates such a problem when I try to work with ...
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2answers
63 views

Why do we need Composite node?

https://www.youtube.com/watch?v=Ml1Kic4VopA - I watched this video and wondered - why Composite node exists? What is it for and what does it do? After all, we can work through a viewer node and export ...
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17 views

Use 2 keying nodes on single image

I'm trying to key My node tree is ...
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1answer
57 views

How can I recreate this well-lit, vibrant, hi-contrast lighting setup?

Above render by Peter Tarka So, in this scene, the lighting is bright, vibrant and yet not over-exposed, and no details are lost. Every time I try something like this, my scene ends up becoming ...
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After compositing , the 3d model gets faint and translucent in the final render

i was following the CGGeeks VFX trick shots , i had downloaded the assets and was making the trick shot , but the problem appeared in the last step , COMPOSITING , after compositing , the fake ball ...
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I can't make the outer glow for the moon

I made this moon and I'm trying to give it an outer glow and also I would like to have emission, but the texture to be visible. Can you guys help me? I'm attaching the render and some stock photos for ...
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1answer
18 views

Image Stretching as result of 3d tracking

When I do a camera track and set up a tracking scene, stretching appears in the image in the compostitor. Why? Also, an "Unsistortion" node has appeared in the compositor making the ...
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1answer
30 views

Where is the Alpha Convert Node in python?

I do not want my alpha premultiplied when saving images. In blender you can use the compositor Alpha Convert Node to convert from Premultiplied to Straight. I can't seem to find this node in the ...
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0answers
35 views

Denoise node and File Output not working

I am rendering out several layers at a high resolution, running them through the Denoise Node, and then outputting them with the File Output node. I have some passes that are getting denoised, and ...
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1answer
35 views

Mask and convert color in photo/video

I am very new to blender still. I want to simply change the color of an object in the video. I want to know if there is good way to do this. I am including what I have to test.
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1answer
74 views

How to render height map in Blender?

I've seen several tutorials on how to use a displacement modifier and a texture to create a terrain from height map data, but I want to go the other way. Given that I have used sculpt tools to hand ...
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1answer
28 views

How to load a render from cloud-servis into compositor with passes?

I have a cloud rendered png image and I cannot find a way to load that rendered image into compositor as render layers. Of course i can import image with image node but, I cannot use passes like depth,...
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14 views

No transparancy when rendering

I imported a video file with a greenscreen backround. I was able to remove the green and acheive transparency. However when I render I still see the green screen. Even though I don't see it in the ...
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1answer
12 views

Prevent Keying Node from erasing Colors similar to KeyColor

In 2.79 Blender Internal, the keying node is erasing colors similar to the key color (white) like light blue, pink etc. Is there any way to covert the exact color (Hex value) alpha? Tried directly ...
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28 views

Disable default animation output when using “File output” nodes

I'm using a "File output" node to customize the output of my animation (separating object & shadow into two files for each frame). I have set custom path for the File output node and ...
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0answers
13 views

Mask Keyframes not showing in graph editor

Blender has a masking system which is available in both the Image Editor and the Movie clip editor. The issue however is that when you add key frames to the mask, it shows up on the dopesheet but not ...
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0answers
18 views

VFX scene offset in compositor but not anywhere else

I have a scene I'm developing using Blender's VFX tools. Object was tracked in the video (png sequence), error was under 0.4, and I managed to model my object to fit as perfect as I care to. Once I ...
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1answer
99 views

Optimal noise threshold for Adaptive Sampling with AI Denoiser

The feature "Adaptive Sampling" allows the Cycles renderer to automatically calculate the samples need per pixel by analyzing the noise level. Next to the option to enable it, there is a ...
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0answers
32 views

How do I render a normal pass that is blue/pink instead of red/green?

In my case, it's for an aesthetic purpose. I want to render out a version of my scene that has the blue/pink normal map look. Blender's standard Normal render pass seems to be red and green. I'm sure ...
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2answers
216 views

I can't get emission shader to glow in Blender 2.83 Cycles

I created a scene with balls surrounded by glowing lightning. The lightning is shrink-wrapped to the balls to give a Tesla-like effect (not that convincing - but it's the best I could come up with). ...
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15 views

How to make video react to emission objects in post?

I wanna do some vfx with explosions and stuff and i was wondering how i would go about making things like faces and bodies (moving objects that cant be projection mapped) light up in response to light ...
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0answers
49 views

Sequencer alpha over problem

I'm trying to compose two strips, an object with an alpha mesh and a background, when I do this in the compositor I get the right look: But that's how it looks in the sequencer also using alpha over ...
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0answers
11 views

Looking to set up a quick single frame render workflow

Im trying to set up a quick render setup for my 2d art workflow. I want to export the base image, freestyle lines, shadows and colors all as separate renders. However, currently every time I make a ...
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1answer
38 views

Eevee Normal pass: remap negative values

Here's a result of Normal pass in Eevee: Faces with normals in -1..0 range are rendered black. Is it possible to remap this range to ...
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1answer
78 views

Fog in Blender? [duplicate]

I have a quick question. I started using blender 6 days ago and decided to create car model and animate it. I did and decided to set it in a city scene. All good but i didn't find any good textures ...
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1answer
74 views

How to get sun streaks /lens flare effect in compositor?

I am making a space scene in blender The sphere with that emission material is supposed to be the sun .I remember doing somthing with the Index OB pass so I have it enabled.I wan't to get sun streaks ...
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1answer
64 views

Accidentally deleted nodes in compositing tab. Can't recover it?

I accidentally deleted the 'Render Layer' and 'Composite' Node. I panicked and didn't know what to do, so I thought maybe if I close my file, itll come back when i open it again. So I closed my file, ...
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0answers
26 views

Black spot in middle of Sun Disk when using Sky Texture, v2.90.0

Unsure if this is a bug or if I am doing something incorrect. I have a World set up with a Background Sky Texture, with the following settings: When rendering out the environment, no matter the ...
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0answers
31 views

Custom shader script in compositor (de-linearize depth buffer)

Some months ago I wrote a minimal opengl 2.5d game engine with pre-rendered backgrounds (such old Resident evil, Alone in the dark and Final fantasy games). Depth is managed through a grayscale image ...
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0answers
26 views

How can I add an image sequence in the compositor with Python?

How can we use python to add images as a sequence into the compositor. I am trying to add a transparent graph onto every frame of the render I have successfully done this on the blender itself, but my ...
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2answers
50 views

In Compositor, is it possible to change multiple node values simultaneously even though there is no input socket?

In Compositor, some nodes do not have input socket for that value. Can I change these values at once? For example, my node group has Distance input socket. I want to use this value to Distance value ...
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1answer
43 views

Why dark vignette looks posterized? [duplicate]

I've been trying to render a scene with a dark infinite background, but when I use a vignette effect it looks posterized. I thought that it might be something I did in my Blender file, but then I ...
3
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1answer
118 views

How do I show the preview image in the background when compositing?

I am compositing in Blender and although I have my backdrop on, I am unable to see a preview of what I am compositing. How do I preview my composite in Blender?
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18 views

VSE effects do not appear in final render

I followed this tutorial: https://www.youtube.com/watch?v=n-zZMiMCTYo I have 2.79 and the tutorial appears to be using 2.8 I am new to blender. I followed it perfectly but when I render the project, ...
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2answers
94 views

How do I darken shadows from a shadow catcher in the compositor?

I am working on a shot of a car sitting in a plane integrated into a video I shoot. When I rendered the image sequence I separated the shadow from the car (when I was rendering the Car itself I ...
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0answers
42 views

Composite with render farm

I am looking to render my project on sheep it render farm and then use the ai Denoise node, to clear up noise. I am not sure if it is possible to use the denoiser node in the compositor because sheep ...
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0answers
23 views

Where can the backdrop option for blender 2.82 be found for composition?

please where can I find the backdrop in blender 2.82 I cant seems to find it on the shading tab. I have no idea after reading the documentation https://docs.blender.org/manual/en/2.82/compositing/...
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21 views

how to combine two passes in the compositor and get this result in proper way

I'm trying to get this result in the compositor but it gives me that ugly aliasing, I don't know what is the proper way to combine them. blend file thanks
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1answer
46 views

Does the compositor affect image quality?

I noticed that the compositing is applied after the image is rendered. Does this mean that when working with an 8-bit Output that the compositor can affect image quality negatively? (i.e. artifacts ...
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0answers
20 views

How to add blurred render layer on top of the other? Screen and alpha over not doing what I hoped

Ive got this render layer And this I want to put the "sun" on top of the white in the first render layer. Looked at a similar case in a book and they used screen, but as you can see it ...
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2answers
56 views

Alpha over node is including unwanted objects in the image?

In this space animation that I'm working on, I would like to composite a blurry version of the planet into the background to create an atmosphere effect. So far I've added a cryptomatte node to cut ...
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0answers
16 views

How can I see the depth/mist of an animation in compositing?

I am making a scene in Eevee and rendered it out as an OpenEXR image sequence. I tried to composite the animation but when I go into compositing and use try to use depth or mist, the rendered layers ...
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0answers
24 views

Can I render a 3d track with “Filmic” color space and yet keep the footage normal?

I have LOG footage (a flat color profile) in blender and I'm 3D tracking it out. But when I render it, I have to set the blender View Transform to "Standard" instead of "Filmic" ...

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