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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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1answer
30 views

How to draw a Rotoshape (mask) in the Compositor?

How can I draw a rotoshape/spline in the compositor to be used as a mask, so that the mask/roto will also still be editable inside the compositing window without have to render the mask as image first?...
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2answers
46 views

Blender dosn't interpret the Colorspace of the imported Image in the Compositor correctly

I am facing the following problem: The imported image from the explorer, a 16bit PNG file, is not showing up in the correct colorspace (I think) in the compositor It's a PNG, so it has sRGB ...
2
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1answer
83 views
+50

Isolate light cast on a surface through glass

I have a white plane and a glass object on top of it, with 2 spotlights casting light through the glass object. This causes a lot of light to be cast onto the white plane. I want to turn the plane ...
2
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1answer
59 views

Cycles rendering dim lighting

This has been going on for a while now but I just want to fix this. I have a nice bright scene in the viewport, but then when I render it, it looks way too dark. Here is the .blend https://drive....
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1answer
18 views

Rendering image with lens distort node and transparent background

I try rendering my image as a png with an rgba channel but when I put on the lend distortion node in the compositer it makes it have a black background.
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1answer
32 views

Separate Red And Blue When Blurred

I want my depth of field to be separated like this
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0answers
22 views

Is composite able to be rendered by command line?

Could composite be done by command line too?
-1
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1answer
24 views

Rendering outputs a wrong image no matter what

I wanted to track a single point in a movie to overlay it with some sort of FX of a GUI. After some testing I finally managed to get to the point where I tracked the point, got the rendered UI stuff ...
2
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1answer
25 views

Is there a way to disable composite effects on already rendered frames?

I rendered about ~170 frames with the glare node on and would like to look how the normal render looks without rendering those frames all over again.
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0answers
34 views

How to add motion blur to HDRI backplate? (example included)

I want to show motion like shown below but keep the far background sharp. As you can see above, the wheels and the road, along with the vegetation, are motion blurred but the background, with ...
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0answers
19 views

compare 2 stl files

I would like to compare 2 stl files. My goal is to receive a difference between enclosed files. The files show teeth before and after preparation. I would like to use Blender software to show how many ...
0
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1answer
31 views

Blender equivalent of GIMP Levels tool

I have been trying to replicate the effect of Gimp Levels tool in blender but could not quite get the same result as in GIMP. My attempt is summarized on the picture below, I tried to remap the values ...
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0answers
52 views

2.8 Eevee Composite Object over background lacking Transparency

Can anyone provide instructions on how to composite my object over an image background in 2.8, Eevee render? The problem is that the object is does not have transparency around it. I set a bounding ...
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1answer
33 views

Blender Cycles - Alpha Over Node - How to get a combination of two layers and get as result something like 1 layer over the other?

Maybe the title is hard to understand so I explain quickly. I have 2 layers, one with a flat text and the other one with the outline of the text (freestyle). If I combine both (with Alpha Over) the ...
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0answers
16 views

compositor : how can I use a render layer as alpha matte?

Is it possible to use a render layer as (alpha) matte for another render layer, and how ? Thanks !
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0answers
27 views

Render multiple view layers with layers starting at different times

I have 3 view layers, layer 1 has an object visible the entire animation. Layer 2 has an object visible for 2/3rds the animation, and layer 3 has an object visible for 1/2 the animation. While ...
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1answer
26 views

In node compositing, how do I delay a movie clip by any given number of seconds

I am creating motion graphics first in black and white, before colorizing them. I am doing that with only kinetic text and transitions. I am overlaying one video clip upon another, but I wish to ...
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0answers
16 views

Is possible to render different objects to different color channels with Cycles shader (w/o compositor)?

I have three texture mapped objects in a scene. The rendering of each needs to effect just one color channel of the final image. I’m currently able to accomplish this by assigning each to a separate ...
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0answers
36 views

Compositor pass mist shown in backdrop but not cycles render

I followed the cycles mist tutorial at How to use the new cycles mist pass in 2.68?. My problem is the mist displays as expected in the backdrop of the nodes window but not in renders or in the 3d ...
2
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1answer
43 views

Transferring colors from my Direct/Indirect passes into Color

I'm doing some compositor effects on my Cycles passes before outputting them to Krita and recombining them. But I'm running into a problem: Cycles stores a bunch of indirect light color in the Direct ...
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0answers
27 views

How to catch light without the object it is hitting on for compositing? (2.80)

I want to render a neon sign along with its emitting light on the wall behind. Then composite it to a real video with Camera Match. I suppose I'd need to render the light with transparency (somehow). ...
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1answer
42 views

Where has the Object Index from Layers has been moved to in 2.80?

I need to use the Object Index for a couple of objects. But as seen in the image below, it is no longer found in the Layers/Passes window. Thanks guys!
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1answer
15 views

Why isn't the animated object moving in the final video?

As you can see the little cartoon is animated (dopesheet keyframes), and I can see it moving in the 3D View port (lower right corner). But it'll remain at the center in the preview backdrop in the ...
4
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2answers
55 views

How to output a color ramp node in a material to it's own compositor pass? (2.79b)

Is it possible to output a color ramp node in a material to it's own compositor pass? I need to mask out part of a material which is controlled by a colour ramp, so I can add filters to that ...
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0answers
17 views

Hide (mask out) objects standing before the mesh

I have a scene that looks similar to this (but more complex) In the render it looks like this And I want to mask out the objects which are between the camera and the cube. Something like this: How ...
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0answers
14 views

How to put a video or Img Seq over a video?

I am trying to put either a MP4 video, or an Image Seq over a video. But unfortunately the video shows with a black background although I did change the Render/Film/Alpha setting from Sky to ...
9
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1answer
214 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 ...
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2answers
225 views

Blender 2.8; Combine Cycles and Eevee render engines into single composite

I am wondering if it's possible to set up the following scenario: Initiate render -> Eevee render into render layer with specified render settings -> Switch to Cycles render engine with specified ...
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0answers
24 views

Weird Vignette effect since Beta 2.8

first post on here. I just installed Blender's 2.8 beta and tried to render a project I made in Blender 2.79 (Steam version) and it has this really weird and bright vignette effect (which should just ...
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0answers
20 views

compositing problem

I am new to the compositor.I was trying to composite an image.But the image was not fully in there. this is my render. and I want to mix it with this After I composite it,the image was not fully in ...
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1answer
50 views

How can I turn off light in compositing nodes?

I want to animate this neon light to be complete turned off but it still shows some light after I put zero on everything, what can I do? I basiclly explain everything in this picture. Thanks. And ...
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0answers
15 views

Value ranges from the compositor

As far as I know, in the compositor, yellow sockets are for images, gray sockets are for values, purple sockets are for vectors. From this, however, I cannot know the ranges of these values. In ...
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0answers
21 views

Confused about the link between scenes and materials and compositor in 2.80

I am trying to obtain a p-map (position map) in 2.80. Since the only way I found is to have a different material with a Geometry/Position node as input, I need to switch between materials (the "real ...
0
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1answer
32 views

Animating Glare angle offset

Is it possible to animate the "Angle offset" property of the Glare node? I am making a photon torpedo that has a glare applied to it, which should rotate when the torpedo is on the way.
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0answers
33 views

Compositing pixelation (Hot Pixels)

I've noticed that when doing compositing in Blender that I end up with hot pixels that are sharp and distracting. The result in this case was using a color node to layer an emission render pass over ...
1
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0answers
20 views

Problem with blur effect in compositor

I am following Andrew Price's Earth tutorial for the lens flare and I set up my sun object just as he did, gave a pass index, etc. and rendered. Around 42:00, he adds a Fast Gaussian blur node with a ...
2
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2answers
87 views

Reduce the brightness of a lit area

This room is currently lit, with a sun light and to a large part by the resulting bounce light. I currently like the amount of bounce light, and how it shapes the light in the room. BUT: I want to ...
5
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0answers
140 views

How can I put Blender Render passes back together again?

I'm stuck with a simple task. I need to tweak some render passes of the image, and then put them back to the combined composited image. For Cycles I use this scheme from the manual: It works as ...
2
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1answer
129 views
+50

How do I stop the Compositor Output Node from overwriting my images on each new render?

Using the compositor node setup above, when I hit F12, it makes a new pass and the rendered images are automatically saved. The problem is that the new render erases the previous one that was saved in ...
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0answers
43 views

Why my composite nodes are not working?

I know I could be feeding a movie file to the Compositor, but then it would take 2 steps (1. render video with color correction from VSE, 2. feed it to the Compositor to rotate it -90 degrees and ...
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0answers
147 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: ...
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0answers
21 views

creating mask for particles

I'm not very good with the compositor since I mostly only sculpt. But, I need a way to create masks only for my particles. Say I have the following scene: and all the objects except for the ...
1
vote
1answer
33 views

Can I render the render border with full quality

Let's say the image is my project. I got my composition and camera done and got it rendered. Now I want a close up of my shot without changing the camera perspective and such. Can I render the render ...
1
vote
1answer
87 views

Adding 3D object to Video Clip

I have been a long time dabbler with Blender (back in the NaN days) but I've never really become proficient at it. Thus I am finding it difficult to do everything I need for this one project using ...
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0answers
14 views

Why doesn't “auto-fit” properly fit the compositor backdrop?

Pressing the "fit" button in the sidebar of the compositor doesn't stretch the backdrop to the edges of the viewport. It's scaled smaller than it's supposed to be. How do I make the auto-fit function ...
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0answers
39 views

Is there a way to make each icon in this render a hologram?

I made this texture out of an image of icons with transparency, and I was wondering if there is a way to have all the icons on the outer sphere point to the inner sphere with little hologram stems? I'...
2
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0answers
54 views

Why are the ID-masks and Ambient Occlusion outputs not pure white?

Whenever using ID-Masks (material and/or object) the result in the render output does not give me a solely black and white image. The whites are slightly darker than they should be. Even when ...
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0answers
21 views

How speed up rendering of animation recorded simultaneously from multiple point of view?

I'm rendering an animation recorded from multiple points of views and then integrating the result through the compositor. The current solution is creating multiple scenes, one from each point of view....
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1answer
70 views

keeping render layers at their original resolution when composed

I wrote a script to generate a multiview render of an animation. You can see the result here Still everything is rendered at the resolution of the final image and then scaled down. This wastes a lot ...
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0answers
33 views

Slit Scan/Time Displacement in Blender's Compositor

How could I make this slit scanning method used in this article? https://nofilmschool.com/2016/11/how-to-create-2001-slit-scanning-effect