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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3
votes
1answer
280 views

Composite mist pass after-the-fact to finished rendered video using the original blend

Say you have 500 stills comprising a video, and you also have the original blend file that created the stills. Is there a way to do a render that skips the time-consuming Image pass but still provides ...
2
votes
0answers
249 views

Bokeh defocus not working on certain frames

I'm currently working on a short animation (Blender 2.69 r60995) for an expo and i'm having a problem with bokeh defocus that it isn't composition on some frames, here's a gif clip: As you can see, ...
13
votes
3answers
14k 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 ...
5
votes
2answers
317 views

Offset Image Brightness

I would like to set up a node editor in the way, that the darkest pixel in a grayscale render result is set to black and the offset to the original value is subtracted from all the other pixels. While ...
5
votes
2answers
838 views

Creating depth of field from Beauty+Depth passes (rendered in another software)

Creating DoF in the compositor is very easy if you have the scene rendered in Blender and the camera depth set right. But what if you rendered a beauty (raw render) and depth pass in another program? ...
5
votes
1answer
1k views

How can I create a single Cycles texture with a different image for each object it's assigned to?

For a model I've made I'd like to keep the basic properties of the Cycles material (shader type etc) the same for most of the objects that make up the model, but have a different image mapped to for ...
5
votes
1answer
759 views

Is there a way to lock rendered layers?

Is it possible to lock which layers get used in compositing? It get annoying having to re enable all the layers you want to use in the compositor every time you disable a bunch of layers to check ...
20
votes
2answers
8k 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 ...
2
votes
1answer
1k views

Compositing output image shading

Is it possible to control the shading via a node in the compositor? I would like to generate two output images, one which has material shading and one without any shading - just the colors from the ...
5
votes
1answer
2k views

How to mix raytrace ambient occlusion with indirect lighting

As the tilte says, how do I mix a rendered image that has raytraced AO and Environment Lighting with an approximated Indirect Lighting pass? My attempts at putting the images together in Paint.NET ...
1
vote
1answer
719 views

While compositing, RenderLayer doesn't move with time

I tracked a sequence of images and want to add a box to the tracked scene. All works well, and in the 3D view, if I change the current frame, the box looks aligned to the movie, which I use as a ...
22
votes
2answers
7k 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 ...
7
votes
3answers
3k 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?
14
votes
1answer
15k views

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 ...
12
votes
2answers
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: ...
5
votes
0answers
80 views

How to rotate an image in compositor without cropping it? [duplicate]

I have an image that I want to rotate in compositor, to mix it with another image later. But as you can see in the images attached, when I use the rotate node, the image gets cropped. I could create ...
5
votes
3answers
2k views

How to get Cycles viewport output in compositing

I'm rendering with Cycles in the viewport (not with F12) and would like to get that viewport output as an input node into the Compositor. How can this be done?
18
votes
2answers
11k views

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: ...
2
votes
1answer
261 views

Percentile alpha control in the Compositor?

Is there a way to adjust the transparency of an image in the compositor with a percentage of the alpha of the original image? (So images that pixels that are completely transparent stay that way, ...
12
votes
4answers
11k 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?
5
votes
2answers
1k views

Getting a Bleach Bypass Look in the Compositor

What nodes should I add and what should I change in compositor to get a good bleach bypass film effect? I would like to have a precise description of all nodes (for example, contrast-10).
1
vote
1answer
755 views

How to remove motion blur from images using the compositor? [closed]

I'd like to know if it's possible to use the compositor for removing motion blur from image sequences, originally from a video footage. Using filter -> sharpen is OK, but I'm trying to find some ...
3
votes
2answers
3k views

Depth of Field in 2.68? [duplicate]

I can't get "depth of field" to work as expected in version 2.68. Here are the steps I'm taking (from a brand new file): I clone the default cube a few times, and place all the cubes in a row. I go ...
13
votes
2answers
15k 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 ...
4
votes
2answers
3k views

Composite transparent overlapping objects from different scenes?

Following on from this question `Can I use Cycles materials with Blender Internal? When following the instructions the solution worked fine but when i tried to apply it to multiple windows I came ...
22
votes
3answers
24k views

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 ...
6
votes
1answer
2k views

Final render not showing full node setup

I am learning how to use the node editing but have come up with a problem. I have followed the instructions that were give on a tutorial but I cannot get the effect to work there are 2 effects that I ...
7
votes
4answers
10k 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 ...
9
votes
1answer
6k 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 ...
3
votes
1answer
1k views

How do I use the “Setup Tracking Scene” feature with Cycles?

I'm trying to use the Setup Tracking Scene button(in the Movie Clip Editor) with Cycles. While it works fine in Blender Internal, when I switch it to Cycles, I don't get shading or shadows. Is the ...
7
votes
2answers
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 ...
5
votes
2answers
679 views

Is it possible to create a compositor node with PyNodes that outputs camera clip_start and clip_end?

Im not looking for a how to, but some of you may know if this is possible or not. An example of a dummy node added to compositor would be much appreciated, i can't find any (or i'm looking in all the ...
18
votes
2answers
1k views

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.
10
votes
1answer
2k 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 ...
10
votes
3answers
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?
8
votes
1answer
750 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 ...
9
votes
2answers
1k 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 ...
11
votes
2answers
1k 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 ...

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