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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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11 votes
3 answers
5k views

Any simple way to apply a color index (to achieve things like 256 color range) across an entire render?

I am wanting to make some animations that have a reduced color range (similar to 80s/90s CGI.) I know of ways to reduce that for still imagery such as in photoshop, but I know of no ways to do this ...
hallu's user avatar
  • 351
11 votes
2 answers
2k views

What is the difference between a Viewer and a Compositor node?

I was messing around with a scene earlier today and looked up some tutorials on chromatic aberration, and I noticed that all the tutorials I found had both a compositor node and a viewer node? Is ...
Kyle Willey's user avatar
  • 1,943
11 votes
1 answer
2k views

stormy rainy window effect

I'm making an indoor scene with a storm outside. I want the windows in my scene to have rain just bucketing over them. Ideally I would like some animated effect that can be composited over the ...
dixiepig's user avatar
  • 768
11 votes
1 answer
2k views

Infinite Tunnel Droste effect

I've been looking at videos that create what is called Droste Effect where an image contains smaller version of the same image and they spiral ifinitely into each other. like Escher's Print Gallery ...
user avatar
11 votes
1 answer
6k views

How can I do color keying using the VSE?

I've been playing around with the VSE a lot lately and I was wondering about its tools-- the strip effects-- and what you can do with them. One effect I want to pull off in the VSE is color keying, is ...
Paul Blart Mall Cop's user avatar
10 votes
2 answers
9k views

Adjusting Freestyle in the Blender compositor

Can anyone tell me if it's possible to adjust freestyle in the compositor? I'm using it in my short film and its a drag to actually render the whole thing every time to see the changes I made. ...
Jaco Blignaut's user avatar
10 votes
3 answers
1k views

How to capture lighting in video shots?

How do I best capture the lighting in a video shot so I can easily insert rendered objects into the scene that are correctly lit?
Maccesch's user avatar
  • 2,149
10 votes
4 answers
2k views

How to mix a jpeg background image with a 3D scene generated using Filmic Blender?

I want to compose 3D-model over image, and I use filmic to get more suitable result. But I want the background image to remain in the original colors. So I try to use this setting: but it haven't ...
Crantisz's user avatar
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10 votes
1 answer
44k views

How can I make an object invisible when I render in Cycles?

Using the Cycles Render Engine How can I make an object invisible when I render?
user avatar
10 votes
3 answers
9k views

How to denoise animations using Blender's Temporal Denoiser?

I've been diving into the secret Blender Animation Denoiser function mentioned in February of 2019 by Pablo and documented on the Developer Site. Here are some things I figured out after digging ...
Blazer003's user avatar
  • 524
10 votes
2 answers
25k views

How to rotate a gradient in the node editor?

How do I rotate a 90% gradient in the node editor without rotating the object (see attached picture). Can I do this in the space properties editor or I probably need to add another node? All I want ...
elmentor's user avatar
  • 807
10 votes
2 answers
784 views

Reverse effect of Defocus node?

I am trying to reverse the effect of the Defocus node as shown below : As you can see the Front is being blurred and the back is focused , is it possible for the front to be focused instead?
Knuckles209cp's user avatar
10 votes
1 answer
4k views

Correctly re-combine ALL render passes?

So, there are some great tutorials around the web about isolating render passes in Cycles so that you can make changes, and then recombine all of your work as one complete image. You'll probably have ...
Mentalist's user avatar
  • 19.3k
10 votes
1 answer
2k views

Is there a way to utilize emissions in VFX?

I have a piece of footage that I 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 layout. I then ...
The Blender Bender's user avatar
10 votes
1 answer
3k views

How can you use vector blur in Cycles with fluids?

I know (at least I believe this to be true) that using cycles motion blur wont work with fluid simulations when rendering, however, I know that vector blurs can be used in place of motion blur. With ...
user212's user avatar
  • 101
10 votes
2 answers
2k views

Can we render a sky layer with transparent layers?

I am using a transparent alpha in the shading menu, while rendering my layers, so I can later composite them together. Question is, is there something like a sky ...
dwelle's user avatar
  • 885
10 votes
2 answers
2k views

Why should I never ever use "Convert Premul" on Cycles renders?

On this question, When trying to overlay images using Alpha Over for green screen work , I used premultiply Alpha, it was the only option that would give me clean key without the background bleeding ...
user avatar
10 votes
3 answers
15k views

Cycles: How do I exclude the Environment Texture from reflections?

In a Cycles scene I have an equirectangular image serving as an Environment Texture background (set in the World settings). I have a glossy object being partially lit by the Environment Texture, as ...
OroNZ's user avatar
  • 1,207
9 votes
3 answers
2k views

How to create an Inner Glow node effect

The Inner Glow effect is a filter that allows to soften the edge while keeping a clear line of the main silhouette at his center. It is heavily used by Blizzard and many other stylized studios to ...
Danyl Bekhoucha's user avatar
9 votes
2 answers
16k views

How to connect nodes very fast using shortcut?

In Compositing nodes window there is an option to quickly connect the selected node to a viewer node using some kind of keyboard shortcut. I can't remember what it was. The only thing I remember is, ...
Paul Gonet's user avatar
  • 33.4k
9 votes
6 answers
5k views

Saving compositor File Output without rerendering

Is it possible to save a File Output node in the compositor without rerendering the entire scene?
ajwood's user avatar
  • 10.1k
9 votes
1 answer
3k views

One part of the render layer glowing?

Take a look at this pic. I want only the eyes to glow without the armor glowing too (The armor got a glossy shader). How can I do that?
thododo's user avatar
  • 587
9 votes
2 answers
4k views

Can you export compositor nodes?

Not sure if this is a dumb question or not, but can you export compositor nodes to another project? I'd rather not recreate them on different projects for similar effects.
Douglas Gaskell's user avatar
9 votes
2 answers
443 views

Can you replicate Optics Compensation in VSE?

The Effect "Optics Compensation" in After Effects is great to compensate the distortion of certain lenses such as Fisheye lenses or wide angle, etc. I have only so far been able to replicate this in ...
MicroMachine's user avatar
  • 4,703
9 votes
1 answer
7k views

Rotating Images

My issue is I do not know how to rotate an image. The picture is a JPEG and Blender keeps loading them improperly, so I need to correct with rotation. How do I do that?
Aleks's user avatar
  • 137
9 votes
1 answer
7k views

Is it possible Animate the Compositor node parameters?

In blender compositor Ineed to animate some Node parametors like Transform, Colore curve, Set alpha values etc.. Is it possible Animate the Compositor node parameters?
shanmugam's user avatar
  • 251
9 votes
1 answer
13k views

Which denoiser is better?

In blender 2.81a, there are two denoising tools: Under layer properties, you can scroll down and enable denoising Also in layer properties, you can check "denoising data" under passes > data and in ...
jng224's user avatar
  • 487
9 votes
1 answer
25k views

Blender Nodes in Editor doesn't show preview Image [duplicate]

I have a small problem with my blender lately. I want to make some compositing with my compositing nodes but the problem is, blender won't show me the preview Image. I have a Screenshot for you guys. ...
Marten Zander's user avatar
9 votes
1 answer
3k views

Achieve a high pass filter in blender compositor?

how can I Achieve a high pass filter like that one in photoshop with the blender compositor
Omar Emara's user avatar
  • 22.6k
9 votes
1 answer
8k views

Composite a 3D object into a photograph

I was wondering how you would go about putting a 3D object into a photograph so that portions of the image are: In front of, or Behind the model. For example, a photo taken from the roadside with a ...
user702's user avatar
  • 91
9 votes
2 answers
602 views

Compositing Layers Have Halos

I'm having a heck of a time compositing numerous layers using the Alpha Over nodes in the compositor. I have done this many times before without a problem. All the objects on each layer are ending ...
D. Waschow's user avatar
9 votes
2 answers
5k views

No previews showing in the compositor

In a brand new project, I'm getting a white "X" instead of the backdrop preview. I can only find one reference to this online, with no solution given. I'm very new to the compositor, so apologies if I'...
JJJollyjim's user avatar
8 votes
4 answers
5k views

Using mask as a garbage matte to hide an object

I'm trying to use a mask to hide a part of a render layer, so that when the render layer is shown over a movie, some parts in the movie will appear to be in front of the render layer. For example, ...
Barak's user avatar
  • 573
8 votes
1 answer
10k views

How to render multiple scenes at once, composite, and save as ONE file in Blender 2.8?

Similar questions on here seem to refer to rendering two different scenes for the purpose of multiple outputs. I want to composite BOTH scenes together in Blender's compositor and then export as one ...
Copperplate's user avatar
  • 1,208
8 votes
3 answers
2k views

How to combine low sample renders?

I am rendering my scene with only one sample but all the renders of the same picture have a different seed value. How can I combine them correctly? I wrote a java-program that loads all the images and ...
rudolf97's user avatar
  • 437
8 votes
3 answers
2k views

How to start a Time Node?

my goal: This is my first compositing attempt in Blender, my goal is to create an animation shown in the render window, the animation is a simple shift from one colour to another within about 100 ...
Abdul Al Hazred's user avatar
8 votes
3 answers
1k views

Voronoi map in the compositor

I just saw this on codegolf and thought it would be an increadibly cool application of the Blender compositor for NPR. Perhaps coupled with a blur shader this could make a nice painterly effect. Is ...
amziraro's user avatar
  • 480
8 votes
1 answer
2k views

How can I blend a moon/planet (textured sphere) into the background (procedural sky texture)?

I've been trying to tackle this challenge for a week or two now and I'm still somewhat stumped. I am trying to create the effect of a moon or large planet seen in orbit from the surface during ...
Nahotnoj's user avatar
  • 157
8 votes
1 answer
5k views

Using the False Color look in combination with the CDL Node to work on Wide Dynamic Range scenes

The color management for working in cycles can be enhanced to work with wide dynamic range scenes. The idea is to enable working with scenes containing values that exceed the conventional 0-1 range. ...
user avatar
8 votes
1 answer
2k views

What is the Alpha Convert node used for?

What is the Alpha Convert node used for? I've never seen any tutorials on it. Also, if there are several good uses for it, examples would be great!
Thom Blair III's user avatar
8 votes
1 answer
6k views

How can I disable auto compositing?

I am working in the compositor with a lot of textures and distort nodes, which makes it very slow (easily 20-30 seconds to composite.) Every time I make a change, it re-composites. This is fine when ...
Ascalon's user avatar
  • 6,629
8 votes
2 answers
9k views

Invisible object that hides other objects (as a mask)

I'm trying to have an object set as invisible that hides other objects, but only when they are behind it. I tried to use the object as a mask (by Compositing) but it works even if they are ahead it. ...
Fossa's user avatar
  • 83
8 votes
1 answer
2k views

how to make a z-depth AND height pass?

Struggling to work out how to make a depth AND height pass, so I can use them in compositing an animation of a city. Depth is easy...height, not so... Is there some way to mix a vertical gradient ...
user3471's user avatar
  • 199
8 votes
1 answer
13k 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 ...
Eric Xue's user avatar
  • 1,813
8 votes
1 answer
849 views

Can I let a tracking marker paint a mask?

I want to do some retouching an a video shot and it would help to be able to use a marker to "paint" a mask. By paint I mean how you paint with the grease pencil. But instead of your mouse cursor you ...
Maccesch's user avatar
  • 2,149
8 votes
2 answers
2k views

Does an HDR environment texture affect the Shadow pass?

I am compositing a scene using a standard process in Cycles, and it worked correctly as long as I had my lighting setup in the scene, however when I switched to HDR, my Shadow pass seems to become a ...
J Sargent's user avatar
  • 19.3k
8 votes
1 answer
2k views

Masked glare behind glass

Reference Photo Consider the following photograph: No Glare The first render resembles: Note how the LEDs have no glare. Glare The second render adds glare by following Price's tutorial: ...
Dave Jarvis's user avatar
8 votes
2 answers
2k views

When integrating live action footage and cg, how to make proper shadows for actors?

What is the best way to make believable shadows for moving actors that are standing in front of a green screen? Do you need to have a perfect modeled double that follows his movements so it can cast ...
sekce's user avatar
  • 1,257
8 votes
1 answer
2k views

Compositing: When to use premultiplied alpha?

When should one check the Convert Premul box on nodes that use alpha? Secondly, why is there a Premul slider on the Alpha Over node? When would you need it to be something other than 0 or 1? I ...
Mentalist's user avatar
  • 19.3k
8 votes
1 answer
6k views

Remove reflection of one object from another object?

I have a reflective object and I want it to reflect only light and not the surrounding objects. I have moved it to Layer 2, but it still reflects the objects from ...
seadeer's user avatar
  • 326

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