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Questions tagged [compositing-nodes]

Questions related to compositing nodes available for compositing render layers into final renders in the compositor.

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Compositing multiple scenes and passes with transparency

I am trying to composite some render layers from two different scenes: Main scene has objects and mist pass, transparency in world setting enabled. Sky scene has only sky environment and transparency ...
Neil's user avatar
  • 1,976
8 votes
1 answer
788 views

Recreating the line detail in shadows from The Wolf Among Us in blender?

This is my first year of using blender so I don't have a lot of experience in blender at all. I'm trying to recreate an effect that Telltale used in The Wolf Among Us for my short film. I don't ...
Jaco Blignaut's user avatar
7 votes
2 answers
1k views

How do I procedurally spread a number of circles across the sides of a bigger one?

For a client project, I need to spread small filled circles across a bigger circle in a procedural way, do you have any idea on how to make this work? I am asking since I don't have any idea of how to ...
laterrr's user avatar
  • 83
7 votes
3 answers
29k views

How to save a rendered image that I have added a vignette to in Compositing?

I have a rendered image in compositing with a node set up to add a vignette. It all looks good in the compositing window but I cannot find a method to save this new image.
Gavia's user avatar
  • 189
7 votes
2 answers
5k views

Output Node with Python

Is it possible to create an Output Node with python? I tried to do it, but I'm in stuck. Here is what I want to create: This is the code I started but I'm sure it's wrong: ...
mifth's user avatar
  • 2,351
7 votes
2 answers
12k views

Why does nothing show up in the Compositing tab?

I am trying to follow Blender Guru's beginner tutorial. He went to the Compositor tab and was using it to Denoise an image but when I got there, no nodes show up. Can you guys help?
Chandler Dabbs's user avatar
7 votes
2 answers
4k views

How to produce glitch effects [duplicate]

I wonder how one could produce animated video glitch effects, like digital codec or connection problems or even analog cable problems. I wonder how one could do something that can work on top of a ...
unfa's user avatar
  • 1,229
7 votes
2 answers
10k views

Are there any ways to speed up blender compositor?

I have switched companies for a while, while in my last company we where using Fusion for compositing, in the new one we are using Blender. I find it a bit hard to transition because of 2 main ...
Sergiu H's user avatar
7 votes
2 answers
15k views

Adding Random Noise to Rendered Images

I know that in Cycles we can have as much noise as we want, but it's not the right type of noise. I'm inserting an object into a video taken with a DSLR. The video has some ISO noise in it and it ...
bertmoog's user avatar
  • 6,126
7 votes
2 answers
2k views

How to take what a camera sees and project it from another camera?

Is it possible to take what a camera sees, and use that from another camera as a projection? That is to dynamically update a projection from a camera? There are some interesting results if this can be ...
placid chat's user avatar
7 votes
2 answers
5k views

Flat material that isn't shadeless

It is standard to create shadeless materials by using the emission shader, often with a Lightpath Is Camera Ray to prevent it from casting light on other objects. This creates a flat color regardless ...
Ascalon's user avatar
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7 votes
2 answers
495 views

Prevent certain node groups from being included in the Add menu

I have created many node groups, and want some to appear in the Add > Group menu, but not all of them. How do I hide certain groups from appearing in that menu?
stackers's user avatar
  • 229
7 votes
3 answers
6k views

is there a way to automate render file names and avoid accidental overwrites?

is there a way to automate render file names and avoid accidental overwrites? E.G. add timestamp to filename? I find my workflow involves many fast test renders, and it drives me nuts that for each ...
Ottavio Rava's user avatar
7 votes
1 answer
7k views

How to render multiple scenes in succession from the timeline?

I've seen over the internet different ways of linking multiple scenes between each other and using multiple cameras from a single scene, but is there any way to render completely different scenes with ...
JayJayAbrams's user avatar
7 votes
1 answer
13k views

How to properly connect the Denoise node in Compositor?

After enabling Denoising Data pass, there are now two image outputs: Image Noisy Image Which should I use with the Denoise node? Blender Manual doesn't cover it.
jachym michal's user avatar
7 votes
1 answer
1k views

Is it possible to select all of one type of node in the node editor?

I have a project where I am pre-rendering frequently via File Output nodes, which are numerous and spread throughout the node tree. Is there some way to select all nodes of a certain type with a key ...
J Sargent's user avatar
  • 19.3k
7 votes
2 answers
7k views

Render transperent shadows in cycles?

I am trying to render an animation in cycles without the background. However, every time I have it render, the background still shows up. I used the compositor to add a background image so I can ...
user2883800's user avatar
7 votes
1 answer
2k views

How to add a ghostly "Glow" effect?

I want to add an "aura" effect to objects. I tried adding blur nodes in the compositor but it didn't look right. I also thought about using layer weights and with fresnel to make the edges ...
Nelson Rodriguez's user avatar
7 votes
3 answers
846 views

How do I "cookie-cut" my world texture only using my existing object?

I have a scene with a world texture, light and 3D object. To create a desired effect, I need to render the silhouette of my 3D object as a "cookie-cut" of my world texture. (Please see ...
user116460's user avatar
7 votes
2 answers
645 views

How can I convert multiple mirror ball exposures into an HDR?

I was hoping I could use Blender's compositor to merge multiple mirror ball exposures into an HDR. I have 7 images, each with different exposures, all aligned, each square, 32-bit tiff format. Yet ...
Arcarsenal's user avatar
7 votes
1 answer
5k views

How do I overlay a photo of a face over a character on a video?

I downloaded an 80s cartoon intro (Jem and the Holograms; traditional cel animation) and I want to animate cutout photos of various family members' faces overtop the cartoon faces. Bonus points if I ...
amonroejj's user avatar
  • 325
7 votes
1 answer
1k views

How can the Levels compositor node be used?

I was looking at the compositor output nodes, and I saw the Levels node. The wiki says: The Levels Node takes an image as an input, and can output a 1D value ...
someonewithpc's user avatar
7 votes
1 answer
2k views

Multiple scenes and material with pass index

I am trying to create the effect where something is bigger on the inside than on the outside, just like the Doctor Who's Tardis. I have two scenes, one inside which is just some objects and one ...
Neil's user avatar
  • 1,976
7 votes
1 answer
455 views

How to duplicate all nodes within a node frame?

I often have to duplicate a node frame with all nodes within it. However when I just select the node frame and press Shift+D it only duplicates the node frame but not the nodes contained within it. Of ...
tempdev nova's user avatar
  • 1,543
7 votes
1 answer
3k views

Is there a way to deinterlace footage using Blender?

I have a camera that has always seemed to give me bad video because of interlacing, and until I watched this video, I always thought that it was just a limitation of the camera. From that video, I ...
TARDIS Maker's user avatar
  • 5,762
7 votes
3 answers
6k views

How can I move an object on a separate layer behind another in the compositor?

How can I make the light bar, after compositing (applying the blur effect on it), be displayed behind the ball, not in front of it?
Jikk's user avatar
  • 71
7 votes
2 answers
937 views

How to combine Cycles and Blender render god-rays?

I have tried to add a new scene (Merge) and in the compositor I've added the renderlayers from each scene and then merged them with Color>Mix>Screen. It seems like there should be a better way. I ...
yodamon's user avatar
  • 895
7 votes
4 answers
14k views

Best practices for masking image layers for compositing?

I'm looking for a efficient way to do image masking within Blender (using the masking tool) à la After Effects. Basically, I want to cut out my images from within Blender instead of doing it ...
comeinandburn's user avatar
7 votes
2 answers
1k views

How do I use the compositor to render with different color management profiles?

I'm using several scenes to render several images at the same time with the File Output nodes in the compositor. I have different Color Management settings in my scenes. Yet when I render my images ...
Školstvo's user avatar
  • 208
7 votes
1 answer
186 views

vertices tracking: movie clip editor

Background: I've a *.png sequence previously rendered: a moving computer Now I wanna add the video to the monitor, so need to track the image sequence. The *.blend file is the same one I rendered ...
Francesco Yoshi Gobbo's user avatar
7 votes
1 answer
1k views

Need Help Removing a Green Screen, Movie Clip Node missing

I have a small clip with a green screen background that I want to make transparent (or just my other video behind it). I have looked at lots of tutorials that feature the node editor to do this. ...
Gigaxalus's user avatar
7 votes
1 answer
3k views

Is it possible to re render a single pass and not the whole scene again?

I'm experimenting with the values for the mist in my scene (Cycles), however each time I want to test the new values I can't find a way to only render the mist pass. This results in the whole scene ...
cybrbeast's user avatar
  • 2,418
7 votes
2 answers
519 views

Blender won't render sound (even when enabled) in Compositor

I'm having fun compositing some videos on Blender and it's awesome. However, when I'm done compositing a video and start rendering with both Compositor and Sequencer checked, the video renders with ...
Hussain's user avatar
  • 71
7 votes
2 answers
914 views

Why are there so many denoising passes?

I just wanted to ask how should I use the other denoising passes (except for the normal and albedo ones):variance, shadowing, denoising depth and intensity, because nobody talks about them and I don't ...
Arthur Etrillard's user avatar
7 votes
1 answer
509 views

How to make original full-pass image from separate passes?

I'm trying to create an image from separate passes. That is, I have a result image, which without altering the composite Combined RGBA buffer looks like following: On this image you can see a cube ...
luke1985's user avatar
  • 592
7 votes
0 answers
640 views

Update function for NodeSocket?

How do I set a callback for socket input change (value or link change) when having a custom node? I have a socket defined like: ...
Hitokage's user avatar
  • 207
7 votes
0 answers
201 views

Filmic color management and masks

I recently had the problem of having to mask (rotoscope) some footage in the movie clip editor and render out some elements to put in there. For rendering those 3D elements, I wanted to use the filmic ...
tobkum's user avatar
  • 984
7 votes
1 answer
541 views

Trails Behind Projectiles [duplicate]

How would I add comic-like trails to projectiles, such as arrows? I have an example from YouTube, but the effect is done in another software. https://www.youtube.com/watch?v=K4lmGGSsFYg The effect ...
Tritofic's user avatar
  • 375
6 votes
1 answer
10k views

How to generate a fake hand painted texture (Blizzard like), Borderlands effect or Pixel Art effect

I want to generate a texture that looks like it has been hand painted to use with a game asset by baking the details of the high poly on the low poly, then composite the textures to get an hand ...
Danyl Bekhoucha's user avatar
6 votes
1 answer
628 views

Why does the "screen" node turn hotspots pink and blue?

I was messing around with some titles in the compositor, and I ended up blend two filters together. Because of habits I've formed in After Effects, I tend to use "screen" rather than "add" whenever I ...
Paul Moore's user avatar
6 votes
1 answer
897 views

How to get LED light appearance right

I’m trying to create an instructional video about one of our boards and wanted to show the name (and later on the diagnostic patterns) of the LEDs on the board. I have three colours, red, green, blue, ...
Omar Filippini's user avatar
6 votes
2 answers
758 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 ...
Sagar Patil's user avatar
6 votes
2 answers
306 views

I want to make a stretch effect?

I'm trying to make an effect using the Blender Compositor, but I didn't know how to do it, and please I want the solution using the compositor not by adding more objects (Lens). Here is a picture to ...
Khalil Bz's user avatar
  • 163
6 votes
2 answers
2k views

Why does the shadow pass not account for mesh lights?

Why don't mesh lights affect the shadow pass? For example: I have a simple scene with a mesh light and an area lamp: However, you can see that the mesh light does not affect the shadow pass: Why ...
gandalf3's user avatar
  • 158k
6 votes
1 answer
20k 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 ...
kitfox's user avatar
  • 1,616
6 votes
1 answer
399 views

Compositor - How do you get the same Math Result for any Render Size

Any time I change Render Size it ruins all of my node-tree setup. Common workflow in compositor is to work in some lower resolution to set wanted effect. Like 50% or 25% of final size. But many values ...
vklidu's user avatar
  • 36.8k
6 votes
2 answers
3k views

What nodes clamp your values?

It seems that certain nodes, as part of their function, will clamp their output to between 0 and 1 regardless of the input number. I am not entirely sure of this. Is there a list of what nodes will do ...
Ascalon's user avatar
  • 6,629
6 votes
3 answers
11k views

How to output ID masks as seperate files for compositing?

When I click 'Render' or hit F12 and select IndexOB pass in the viewer I'm able to see a mask (white on black) as expected, but when I click 'Animation' to output a series of these masks as '.png' ...
The Beachdancer's user avatar
6 votes
1 answer
12k views

Compositor result won't show

I have problem with compositor. It doesn't show result in output render until I replug Image into Composite node. I am rendering 2 layers, but it show only first layer, without anything modified, ...
Jozef Culen's user avatar
6 votes
1 answer
3k views

How to render rotating propeller?

I have a nice (in my opinion :) ) looking propeller on my Fokker VII. I am happy with this for stationary shots, but if I want to composite this in an aerial scene, I obviously shouldn't have the ...
Neil's user avatar
  • 1,976

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