Questions tagged [compositor]

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

Filter by
Sorted by
Tagged with
-1
votes
0answers
13 views

Exr files to be saved from File Output Node not saved

I am saving rgb frames as png, and depth info as exr file for my project. To save exr file separately, In Compositor, I connect a file output node from 'depth' and mention its path as '//render/depth/...
1
vote
0answers
12 views

How to build a six Colorchannel Grayscale Controler in the Compositor (Similar to Photoshop and alike)?

I try to recreate a Color to Black and White converter for the compositor that can handle six color channels, similar to those ones in Photoshop or Affinity. By now, i recreated the standard "RGB ...
0
votes
0answers
9 views

Compositing-Save/Export

Have they done away with the Save/export option in 2.91? It isn't in my available features under image, and ⌥ Alt + S does not work either. The only way I could get a image save was with my screen ...
1
vote
1answer
25 views

Exporting a Denoised Composited Image Sequence

I just finished Blender Guru's donut tutorial, all parts and levels. However I must have misunderstood how the composite node works, especially in regards to animation (or rather image sequences). So ...
0
votes
0answers
22 views

File Output Node not Working in Certain Cases

I am aware of this thread: File output Node not working However this is not my problem. I have used this file to output to files, but I am trying to use a 3rd scene in order to composite the 1st 2 ...
2
votes
1answer
37 views

UV mapping node in the compositor. Why can't I subtract some pixels from the alpha channel with a mask?

On trying to answer this question, I can't subtract information from the alpha channel without running into borders that persist from the UV mapping node. Those borders come from the original image's ...
2
votes
2answers
64 views

Mask Image Plane in Shader Editor or Compositor

I have an image as plane imported in Blender 2.91: Now I want to mask off the red wine and then animate it so it would fill the glas: Yes, it must be solved in Blender. Tried it in Compositor with ...
0
votes
0answers
20 views

Pixels retrieved from Viewer Node are darker than the actually rendered image… Why?

I am trying to create a pipeline in which I first render an image using the blender python API (I am using Blender 2.90) and then perform some image processing in python. I want to fetch the image ...
0
votes
0answers
40 views

How do render times for greenscreen/compositing compare to other Pro Editing Software times (Adobe PP or AE)?

And what times are actually reasonable? My situation: I edit videos using Blender for a Youtuber that has just purchased a greenscreen. I like Blender because I already know how to do all the things ...
0
votes
0answers
7 views

Aliased blur in compositor

I'm trying to apply a variable blur on my composition in Blender 2.9. However, there is aliasing visible around the edges of my object, and I can't figure out why. It appears to have something to do ...
0
votes
1answer
30 views

How to composite an image sequence rendered in PNG?

I've rendered my first image sequences of 119 frames in PNG. I have trouble to use the compositor in order to save the final video file. When I load the image sequence (with the image sequence node) I ...
3
votes
1answer
68 views

How to get rid of defocus node artifacts?

When compositing my render with an alpha over node to be able to edit my background and my foreground separately, if I use a defocus node to give my image some DOF, I always run into those weird ...
3
votes
1answer
45 views

Why are the colors from color ramps dimmer than what you pick?

If I input a color in a color ramp, and set the ramp to constant, the colors do not come out exactly like the input. They are grayer/darker. Example: On my color ramp, the yellow input is "#...
0
votes
1answer
38 views

How to deal with masks and shadowcatcher when compositing 3D elements over an image or video?

I am trying to add 3-D dog ears to a human being in a real life video clip background. I have to mask a portion of the persons hair over the 3-D model ears I created. The problem is I also have to add ...
0
votes
1answer
17 views

Motion Tracking. What is the actual scale for “Set Scale”?

When doing VFX and tracking, there is an option "Set Scale" to set the relatively same scale to the 3D interface as the video you're tracking. What is the actual size for the scale (is the ...
0
votes
1answer
20 views

How can I programatically evaluate each pixel before final composition?

I'm using a complex compositor node setup, which in the end reduces the image to just a few solid colors. I would like to remove any pixels from the image which have no pixels of the same color in the ...
2
votes
1answer
29 views

Simple movie clip sharpening using Compositing - How to do this?

I'm a novice in using Blender and am looking for an easy way to sharpen movie clips. I believe I have to use Compositing, but am not being able to find some simple step-by-step methods to achieve ...
0
votes
0answers
11 views

How can I pass a value (heightmap) from a material shader to the compositor?

I need to get either the 2d image data, or material data from a texture node, into the compositor. Is there a way to do this?
0
votes
1answer
42 views

How do I remove green background without replacing it with another background?

My objective is to produce a foreground video clip with a transparent background, that can be superimposed on any background video. I know how to remove the background using compositor, by replacing ...
1
vote
2answers
53 views

Glare on transparent background using Cycles

In a Cycles scene, I need to render glare around the warp engines, however, the resulting PNG always has the glare cut off when it leaves the body of the ship. This problem is present in the output ...
0
votes
0answers
39 views

How to Alpha matte an object with another?

Excuse me, I have two render layers, one for Suzan, the other is for a circle, and I want to set the circle to be the alpha matte for Suzan, like the image below: I tried to do it, but the result was ...
1
vote
1answer
67 views

How can I composite Eevee and Cycles together in one animation sequence?

I have a character model that I’d like to render in Cycles only and the rest of the scene in Eevee. This was suggested to me by someone I had contacted sometime ago. He said to speed up render times, ...
0
votes
0answers
9 views

How should I fix these Armature and Compositing glitches (White flashes)

I made This cartoon water by mixing different view layers in the compositing section. Each of the view layers is rendered properly; however, if there is an animation of the armature; in the water, the ...
2
votes
1answer
25 views

Image Editor does not show RGBA output from composite viewer

blender 2.91, I have a problem with Composite viewer node - I'm trying to preview contents using Image Editor however despite having all checkbox set Image Editor does not shows full output, ...
0
votes
1answer
15 views

Render Result is different from the Composite node preview

When I try to open image with transparency in Image Editor window it looks exactly like it should. But when I try to show it in Render Result image using Composite node, transparent part of the image (...
-1
votes
1answer
75 views

Why does the Alpha Over node make my image brighter?

In a Cycles project in Blender 2.9, I want all objects to receive white light from the environment, so I set World Properties --> Surface --> Color to white. But I want the background of the ...
1
vote
1answer
8 views

Show addon tab panel in just the Compositor, not in Shader Editor

How can I only place the panel in the compositor NOT the shader editor as doing bl_space_type = 'NODE_EDITOR' doesn't specify a specific node editor and places it ...
0
votes
0answers
24 views

Why Does This Break The Viewer?

I need to be able to use a single value to affect an image in compositing. it seems like the simplest thing the compositor should be able to do but I have no idea how. whenever i attach a node giving ...
0
votes
1answer
22 views

Why does ambient occlusion make a black area above emission object?

I did AO in compositor. The body of an emission object is invisible to the camera. First screenshot - with TURNED ON AO Second screenshot - with TURNED OFF AO How it works and how i can keep AO turned ...
1
vote
0answers
14 views

Composite Render Differs From Rendering All Layers

When combining the 'background' and 'tower' Render layers via the Compositor, the background layer does no merge correctly as it does when I render the Render layer with all layers (see pic below). ...
1
vote
1answer
36 views

how composite text over image

I have a movie (rusty_chain). In this movie i want to add descriptive text on top. How can i do this with compositing? I know i can do it with video sequencer, just a layer on top of it, but if i try ...
0
votes
2answers
54 views

Soft dewy glow lighting set up?

Does anyone have a way of creating this type of lighting in blender or is this something that's more easily achieved in photoshop? The objects almost have this glowing aura and that's what I'm really ...
0
votes
1answer
40 views

How to write a text on a building picture

I would like to write a text/logo on one face of this building : So I created some basic text (+ extrusion/bevel/...), but the problem is that I've no idea how I could reliably move this text (+...
1
vote
0answers
17 views

Camera tracking : Rendered image only render 3D objects and doesnt render the video image [duplicate]

I am new to Blender(2.9) ,I followed several Camera Tracking tutorials. But when I render my final image, it only renders the 3D objects and the video image doesn't get rendered.If I change the "...
0
votes
0answers
23 views

Problem with edges of mask in exr file while working in photoshop with it

I exported a exr MultiLayer file with masks from blender using cryptomatte. And I have such a problem in Photoshop itself, the seam between the objects is translucent, the mask leaves such an ...
0
votes
1answer
31 views

Is there a way to combine two png images at shader editor? [duplicate]

Is there a some trick to combine two png images at shader editor with same behavior as Alpha Over Node in Compositor. I am familiar with MixRGB node and the fact that factor can be used to mix colors ...
0
votes
1answer
18 views

Nodes and vector colours of a 2D picture in Blender

I have a jpg picture as given below and I wanna have it entirely red with the red color having the density which would follow the original picture. A .blend file using Nodes postcomposition would help....
0
votes
0answers
19 views

How do you export a comp and not re-render the animation?

Whenever I try to export my animation comp by pressing Ctrl+ F12 or Render > Render Animation, Blender just renders my scene again rather than exporting my comp. How do I tell Blender to export my ...
0
votes
0answers
41 views

Rotopaint equivalent in Blender? ***how to paint masks in compositor***

I was wondering whether there was a way to paint masks in the compositor. Basically a Natron/Nuke rotopaint equivalent mode, where the mask can be painted live, with a brush. This would be immensively ...
0
votes
0answers
23 views

How can I add chromatic aberration to an image with transparent background correctly in the compositor?

I rendered a png image with transparent sky (i used the transparency option in film to hide the hdri) because i want to add a custom sky later on in gimp so i can tweek its colors separately. The ...
0
votes
0answers
14 views

How to run a compositor operation one after the other?

I'm currently trying to do a new Compositor node in C++ in blender and I need to wait for an operation to finish before the second one begins. Is it possible to do so? Thanks.
1
vote
1answer
33 views

Blender 2.90.1 Keying Node doesn't seem to work. Am I missing a switch somewhere, or does keying need to be added to the clip like a mask?

The Keying Node doesn't seem to work. Am I overlooking a switch somewhere, or does keying need to be "added" to the clip, as masking does, in order for it to render? Here is my compositor ...
0
votes
0answers
29 views

Color remap / dithering composing node?

Is there any way to do a color remap / dithering composing effect? I'd like to do the same in blender as this ImageMagick command: ...
1
vote
1answer
47 views

Why my highlights getting lost when re-importing a rendering into the compositor? [duplicate]

I noticed that I'm loosing colour information in the highlights after exporting and importing pngs from Blender. I know that the compositor works with linear space but something gets lost when saving ...
1
vote
0answers
40 views

how do I… comp/blur/depth of field an object so that it comes into view as the camera dollys?

Bad headline sorry, here's a frog in a cage the idea is, we first see froggy through the bars, which are so blurry we cant really figure them out. as shown in this comp attempt ^above^ .because the ...
1
vote
1answer
25 views

Random Streaks in Appearing Only in Final Render

My rendered animation shows a large streak on some of the frames, and not on others. The streak doesn't show in the viewport, only in the final render. Rendered using cycles. Here is what the Render ...
1
vote
1answer
20 views

Ultra bright points of light randomly appearing

I've been trying to create a stormy ocean with lightning, but there are a few random superbright pixels that blow up when I enable fog glow. I've tried turning the threshold to 1000, and they still ...
0
votes
0answers
15 views

Render View Lighting/Colors and Shadows are Different from Compositor/Render

Compositor/final Render are identical, as they should be. I'll post a big screenshot so you can see every panel that seems relevant to this: pic (I blurred the mug 'cause there's a swear word on it) ...
0
votes
1answer
55 views

How do I render only the particular view layer I want instead of always including a full composite pass?

I have a scene and I'd like to render out PNG layers to make life easier in post-production. I have set up all my layers to render separately. However, Blender is also spending time rendering out a ...
0
votes
1answer
27 views

Viewer node in compositing doesn't show anything

Viewer node in compositing doesn't show anything, I've rendered the image, unplugged and replugged the nodes, but it never displays anything for some reason. uploaded the blender file here

1
2 3 4 5
25