Questions tagged [compositing-nodes]
Questions related to compositing nodes available for compositing render layers into final renders in the compositor.
1,836
questions
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answers
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How do I exit a node group?
I selected a bunch of nodes that I wasn't using and that weren't connected and thought that I would see if I could group them.
Well, Blender let me group them alright, but now there is a green ...
- 3,707
30
votes
3
answers
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Cycles: Shadeless "Shadow-catcher" Material for Rendering onto Footage
I am superimposing CGI over video footage, and have run into a problem in making materials for objects that act as 'shadow catchers'.
Essentially I want a shader that is shadeless—like an emitter—but ...
- 415
29
votes
1
answer
53k
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Planet texture generator
What cross-platform (or cross-browser) resources are available to help make texture maps for generating beautiful planetary images using Blender (Cycles)? Ideally, these would include:
Terrain maps (...
- 849
28
votes
1
answer
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views
What is the the ASC-CDL node?
The color balance node in the compositor can be switched to use the ASC CDL
How is it used?
How is this different from Lift/Gamma/Gain?
How do the Offset, Power, Slope options affect the image?
user1853
27
votes
5
answers
44k
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Save all render passes to EXR image?
I am having an issue with EXR file export that I did not encounter in previous versions of Blender. I used to be able to render a render layer with all its passes and get all the passes included with ...
- 401
26
votes
4
answers
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What is Ambient Occlusion?
What is Ambient Occlusion and what are some of it's uses? I see it is used in creating what might be called "shadow catchers" in the following node tree setup:
- 16.2k
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3
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How can I get a Depth of field render pass?
How can one make a render pass with black and white data to display depth of field based on the Settings > Camera dof settings?
I want to blur or defocus in the compositor, similar to the way it is ...
- 1,326
24
votes
5
answers
14k
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How to visualize a value resulted from math node?
How to visualize a value resulted from math node,or just to know it.
I tried the way of scaling this value to the scene size and then pick the color and get the value but I want more effective way to ...
- 22.4k
22
votes
5
answers
17k
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Is there a way to make comments in the node editor?
I'd like to have a node like the Frame node but one that can have lots of text, not just a header. I've looked and it looks like there isn't any such capability so far, so I was wondering how easy it ...
- 16.2k
22
votes
3
answers
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Scrolling credits
I used blender as all in one application. I model, animate and compose in it. Now I need to add a simple scrolling credits at the end on an animation.
I want to know if there is a easy way to make ...
- 1,844
22
votes
2
answers
8k
views
Shadowless render pass
I would like to have full control of the shadows in post production.
That's why I would like to have
A shadow render pass containing only the shadows of my scene
A shadowless render pass containing ...
- 1,727
21
votes
2
answers
22k
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How can I resize/move the "canvas" of an image in the compositor?
As you can see, if I try to translate an image in the compositor, it does not affect the actual bounds of the image, only the pixels themselves.
The same thing happens when trying to scale an image:
...
- 155k
20
votes
2
answers
9k
views
Post-processing Lightsabers in Blender
I've been studying JamesVillanueva's lightsabers for a while now, and have tried to recreate the effects in Blender. The trouble I'm having is with the blade in the compositor. Keep in mind that I'm ...
- 325
19
votes
1
answer
10k
views
Controling compositor by python
I've been looking at the python code loging of Blender.
But in there things get loged as mouse clicks.
What i like to do is combine a few images into a larger one using compositor, but i need control ...
- 426
18
votes
2
answers
38k
views
How to zoom out of the backdrop in the compositor?
The Backdrop Image in my compositor is too zoomed in because my image is high res. How can I zoom out?
- 416
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2
answers
2k
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How do I use the compositor to output colour based on the depth of objects?
This setup seems like it should work, but it doesn't.
- 166
18
votes
3
answers
11k
views
How to get a smooth curvature map from a normal map?
I am trying to generate a smooth curvature map from a normal map. I already know how to generate a sharp curvature (from this post: How to convert a normal map into a curvature map )
Here is the ...
- 3,628
18
votes
2
answers
4k
views
How to save the render result within Blender
Is it possible to render an image and have blender remember it, so that next time I open the file the render result will not be blank? I am not talking about saving to an external file. Specifically ...
- 24.7k
17
votes
3
answers
19k
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How to create a gradient backround in the compositor?
I want to add a gradient background to my render, but within the compositor (not with the actual background world setting of the scene). I would also like to don't have to use an image (neither ...
- 6,464
17
votes
1
answer
2k
views
How to achieve screen tearing effect or video glitches
I do not know at all what this effect is called, therefore I cannot search for the answer on the web. I am referring to the thing where the RGB color will shift individually when the camera jitters/...
- 173
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2
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How do I use nodes to combine two images when both have transparent areas?
Is there a way to use nodes to combine two images if both the images have transparency (i.e. alpha channels)?
- 16.2k
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2
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Make the flame of a candle more yellow
Here is what I have so far:
The issue is The candle looks like a light bulb... when I tried to make it more yellow via RGB Curves the whole thing got more yellow:
Can anyone help me out? Thanks!
- 887
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1
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2k
views
How can I emulate old photo cracks and creases procedurally?
This is the reference photo I've been using, and after a few attempts at it myself I wasn't able to get anything I was happy with.
Essentially I want to be able to add an image into the Shader node ...
- 636
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votes
3
answers
10k
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How can I make a "Movie Clip" node start at a certain frame of the scene?
When I use "Movie Clip" node in Blender 2.7, it always starts at Scene Frame 1. How can I change it in order to make it start at Frame 6, for instance? The movie clip I am using is a Movie FX for ...
15
votes
1
answer
15k
views
What is the fastest and easiest way to add a vignette in the compositer for Cycles?
Poking around to find an easy vignette effect, I constantly run into seemingly unnecessary node setups. Six or seven nodes to add a vignette? An apparently really simple effect, this seems a bit much.
...
- 1,969
15
votes
1
answer
17k
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Using scenes and render layers to composite an object isolated on white background with shadow
I composite 3 individually rendered and saved files to achieve the look of an object isolated on white with a proper shadow:
image file of object floating with alpha background
image file of a render ...
- 3,232
15
votes
1
answer
3k
views
How do you calculate square root with nodes?
I'm creating my own merge functions in the compositor, but I've run into a bit of a wall. How do you calculate the square root with nodes? Would one have to write a python node to do this? If so, what ...
- 341
14
votes
4
answers
14k
views
Color correction in the compositor from the video editor
How can I connect clips from the timeline in the video editor to the compositor to add some nodes-color correction, rgb curves etc., to every single clip, or to all of them at once?
- 141
14
votes
4
answers
3k
views
Where do the white lines come from in my composite?
I'm having this issue for years now, and I'm not sure if I am doing something wrong on my end, or if what I would like to achieve - or expect to see - is even possible. My question is about ...
- 11.1k
14
votes
2
answers
16k
views
How to convert a normal map into a curvature map (per pixel curvature)
I am trying to generate a sharp curvature / cavity map in the compositor from a normal map but I don't know the node setup.
Here is my reference: http://polycount.com/discussion/comment/2273084/#...
- 3,628
14
votes
3
answers
20k
views
How can I use the compositor on the result of the sequencer?
I recently ran a renderfarm on a file with some compositing setup, but I forgot to set the composite output back to the Composite node instead of the Viewer I was temporarily using. Since the node ...
- 9,312
14
votes
2
answers
1k
views
Is there a way to get rid of this square artifact coming from lens distortion?
I've got a noisy render that I'd like to composite with slight lens distortion (Fit=True, Distort=0.03, Dispersion=0.001):
I'm noticing a repeating pattern of square artifacts in the output of the ...
- 9,961
14
votes
1
answer
2k
views
What are the denoising passes useful for in 2.79 experimental feature set?
In 2.79 when experimental feature set is activated, there are some new passes available to the compositor if Denoising is enabled.
The new passes that are there after rendering the denoising pass ...
- 12.2k
13
votes
1
answer
2k
views
How to generate Reaction Diffusion animation?
How to create Reaction Diffusion as animated texture (image sequence) in Blender?
- 33.2k
13
votes
1
answer
3k
views
How can I create and project a symbol/rune on a sculpture? (like Blizzard's games)
How can I create and project a symbol, rune or logo to a sculpture and make it look like it is from a Blizzard game? What are the sculpt brush settings to project it on any surface (flat or round), ...
- 3,628
13
votes
2
answers
4k
views
Stacking cycles renders in the compositor?
There's a blog post going around about a plugin that uses ImageMagick to stack Cycles renders together.
Why can't we do this in the compositor, and with a still frame?
Is there a way to "get ahold ...
- 11k
13
votes
2
answers
19k
views
How can I add Lens Flares/Halos?
Is there an addon, or an easy way to add lens flare effects or light aberrations in Blender? I've been using Blender for a while now, and it's very time consuming to always have to export to another ...
- 676
13
votes
1
answer
13k
views
How do you import a Compositing Node Set-up?
I have a Compositing node set-up for a lomography effect that I want to export or append to other blend files. Is there a way to do this?
I tried grouping the nodes, but the group wasn't appearing ...
- 1,027
13
votes
1
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1k
views
Magic Eye Render
Today's newspaper had a Magic Eye or Autostereogram image in the kids section
... started me wondering could tools available to blender, be used to render a simple scene (Suzanne of course, repeating ...
- 82.5k
12
votes
2
answers
17k
views
Can I make a custom node from a group and have that available in other projects?
I've found some neat combinations of nodes to create certain effects, so I'd like to make them a group and then have that node available on my list of available nodes, even when I reload the startup ...
- 16.2k
12
votes
3
answers
21k
views
Is there a way to save composite node presets?
Is there any way in Blender to save settings in your compositing node setup. For example say for my shadow catcher I have it setup for a hard shadow for sunlight, and then I also have a setting for ...
- 121
12
votes
1
answer
17k
views
Use custom properties (variable values) in the node editor
An object's Custom Properties panel looks like a great way to inject variable values in the Compositor:
However, there does not seem to be an Input that defines a reference to the Object Data's ...
- 849
12
votes
1
answer
1k
views
Recreating Mandelbulbs with math nodes
I'm trying to recreate a Mandelbulb using Volume and math nodes in blender.
I have been able to create a Mandelbrot with math nodes but I am having problems making it 3d.
I tried translating this ...
- 121
12
votes
1
answer
2k
views
Blender (Cycles) Manual DOF
Is is possible to increase the depth of field in cycles while keeping the same blur size? I know this is not physically correct, but in some renders this would be useful. Here is a demonstration of ...
12
votes
2
answers
4k
views
What is the workflow for compositing Fire/Smoke with Cycles
Since fire/smoke is currently only supported in the internal renderer, what are some good workflow ideas for bringing fire and smoke into a cycles scene.
My current idea seems too labor intensive:
...
- 503
12
votes
1
answer
3k
views
How to utilize the denoise passes to build a denoise node network in the compositor
I've built custom denoising node networks before in houdini's compositor, using raw passes combined with noise reduction nodes, but I'm not sure how to utilize the various blender denoiser passes to ...
- 495
11
votes
3
answers
14k
views
How do I get the Glare node to output transparent instead of Black background
This is what I have so far:
The rendered image has a transparent background, but the glare filter creates an output with a black background, so after merging the two togheter, the background turns ...
- 644
11
votes
3
answers
2k
views
Can the compositor be used to batch process images?
There are tools to batch process images already of course, (such as ImageMagick), but this isn't as flexible as Blender's compositor since they typically perform linear operations and don't have the ...
- 46.5k
11
votes
5
answers
9k
views
Glow effect invisible on transparent background
I'm trying to render a lightsaber on a transparent background to use as game sprites. I've followed a tutorial on youtube to create the glow/blur effect and it worked great on a black background but ...
- 111
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votes
2
answers
3k
views
What are nodes, and how do I use them?
I'm a bit new to Blender, and in trying to learn more, I've stumbled across nodes.
What are nodes, and how do I use them?
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