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Questions pertaining to Blenders internal image compositor. The compositor is used for manipulating the final result after rendering.

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how can i make black and white alpha video effect

I mean using a real footage (not 3d)just like the "Renaissance (2006)movie" https://www.youtube.com/watch?v=GM5KCoWNXF4
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17 views

Black and white levels

Even I think that this is a more general question in art, guys at graphic design stackexchange told me to ask it here..... So: Here's a simple image I took from pixabay, in a video about compositing, ...
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26 views

Run VSE movie strip output through Compositor or Compositor movie clip output through VSE within one project possible?

I wish to add a movie clip into Blender then simultaneously use both VSE and Compositor (nodes) to produce various video effects. The VSE offers some nice options, and so does the Compositor. So far, ...
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20 views

How to sample Image A with coordinates from image B, using compositing editor nodes?

I need an operation, mathematically written as ImgOut[x,y] = A[ B[x,y].red , B[x,y].green ] Is it possible to implement this with blender compositing editor nodes?...
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19 views

Render stops after 1 frame. “Render error (Permission denied) cannot save: '0001.png'”

For some reason today I can no longer render more than 1 frame at a time. I was able to just fine yesterday. After successfully rendering the first frame, render stops and I get this error message: ...
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23 views

How can I render pixel art images with no AA and transparent background?

My question is: How can I render a pixel art image with cycles (low resolution) which is ready for use in a game? That means: no border antialiasing, a transparent background, and a real 1:1 pixel ...
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1answer
18 views

Linking Mist pass to OutputFile Node Image cannot be performed using Python API?

When attempting to link the mist pass output of a Render Layer node to the input image content of an Output File node, I found ...
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0answers
28 views

What's the input of the render button?

So, recently I'm finding my way into blender video editing and compositing, however, I usually do these things in different projects because I don't know how the blender renderer works. My question ...
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29 views

How to save render file [duplicate]

1st time I have render image and close. Thinking it will be save with the blender file. 2nd time i have render and save the image so that later i can access and composite. With the save image with the ...
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1answer
51 views

Why does the “Map Range” node fail for values above 10,000?

I have a "Map Range" node with the following inputs: Because 10,000 is right in the middle between 9,995 and 10,005, I expect the output to be 0.5, and indeed it is. If I now increase the value by ...
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2answers
34 views

Rotated Gradient Blur in Compositor

I have a rendered image (actually sequence of images) and want to 'fake' a depth of field in the compositor by using a blur, or a defocus. My preconceived notion was that I should produce a gradient ...
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1answer
47 views

Transparent beam

I'm trying to combine a quick model with a background in compositor and I want my sunlight beam (yellow) to be mixed with the blue sky, how do I do that? I tried working with Alpha over, but i wasn't ...
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1answer
50 views

Movie editing : VSE or compositor?

Currently editing a short-movie in Blender (~11min), I did reach some limits of the VSE. Some part of the movie is black and white, and for the first time Blender began to give me "not enough colors" ...
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1answer
37 views

Noise reduction on only one layer

To reduce render times I want to apply some noise reduction on a simple scene using Cycles. I don't want to apply it to all scene because it blurs a bit the first plane (A), so my idea is to separate ...
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0answers
19 views

Is it possible to use object position as input for texture in composite nodes?

I was trying things out in composite nodes and was wondering if it's possible to use an empty as the control for offset of a texture in composite nodes. I couldn't find another node that could ...
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11 views

How to distort effects with equirectangular projection

I have a 360-degree panorama(rendered in Blender) and want to composite a glare effect onto it. The problem is that once it is viewed in a 360 photo view the effect seems distorted due to projection ...
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1answer
22 views

Compositing: Get mask of glass/ transparent materials

I'm using the compositor to automatically segment parts of objects into masks. This works well for most materials, but when doing the same for a mix shader of glossy and transparent it doesn't, how to ...
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1answer
29 views

Animate location (or strength?) of alpha / opacity mask to suggest motion along arrows

I have a globe depicting trade winds: The trade wind arrows are an image with alpha. I am in cycles, using this node tree for the earth material: I would like to animate the opacity of the arrows ...
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17 views

Compositing using glow nodes - blocky results / poor AA

When I attempt to create a glow in the compositor I always end up with a blocky, non-antialiased result. What am I doing wrong? I attach the composite render, the non-composite render and my node ...
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36 views

Blender for VFX [duplicate]

I wanted to know where can I began learning VFX in blender. I know that blender has a great compositing, camera tracking and masking etc. capabilities and I want to know how can I use them effectively ...
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11 views

Combining 2 render layers not working with Z depth?

Ok, I was looking at all the related questions that combine layers using Alpha over and Environment pass for the Z part, however I have several alpha overs here for my glare nodes and it isn't working ...
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1answer
31 views

Mesh masking of blur

I'm fairly new to using the compositor and I have this issues with having 2 renderlayers, one for the glare of the reflections. and one for the glare coming from the lights as some sort of glow ...
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1answer
19 views

Blender renders the input video instead of Composite node

I stabilized a video in the Movie Clip Editor and used the result as a Stabilize 2D block in the Node Editor. But, when I animate it, it is reproducing the original video, instead of the Composite ...
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27 views

Glass shader keeps reflection of environment map even though it is set to Transparent

For testing purposes I created a cube and applied a Glass material to a quad face of it as illustrated in the image below (principled shader mixed with transparent shader controlled by a maximum math ...
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1answer
23 views

Is it possible to see glare streaks in transparent areas too?

Attached you see my problem. Is it possible to see the glare FX in the transparent areas "outside" the rendered content too? Thank you in advance.
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1answer
36 views

How to add fog in the compositor in blender 2.79

I want to add mist/fog in the compositor for my scene but i dont understand how to add it. I have looked up and nothing seems to tell me exactly how to do it because in my version of blender (2.79) ...
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1answer
42 views

How to get mist only at horizon line?

Ok I am trying to create something like this - where there is a "layer" of mist that occurs only at the horizon line - I have glowing objects in my scene that create a glare and Ive followed ...
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22 views

Cycles - how to do mist AND emission glare?

I cant even get mist to work in compositing, and my attempts having glare as well as mist are failing- despite following tutorials exactly I just get a render that is all one color, instead of mist/...
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1answer
148 views

Duo-tone Effect in Blender's Compositor

How can I make a duo-tone effect shown on this picture?
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1answer
31 views

How to position the center of the Glare Node effect (in ghost mode) off center?

It seems the Glare node in Ghost mode is always centered in the frame. I have 2 render layers: 1 for the Background and the Asteroid (with Object ID). 2 for a Sun object (A light emitting Sphere ...
3
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1answer
90 views

Delete freestyle after rendering

In some cases I want to have the Ray Tracing-render and the Freestyle-render seperated, so I can post-process it in Photoshop. It seems to be that the Freestyle lines are placed onto the render after ...
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0answers
13 views

Blender Image too saturated when using compositor but not in the saved output file

I rendered my scene in two parts with the intention to use alpha over in the compositor to merge them. When i rendered the images they looked perfectly fine. They looked like this: When I use these ...
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1answer
114 views

Hot element's glare in a colored lamp in rotational animation?

The problem was acceptably solved by using ideas from Hexbob6's reply, plus the ideas from the link he gave me in discussion of his reply (the link is in the discussion of his reply). Problem's very ...
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1answer
66 views

How to keep procedural texture proportion automatically

If I add a procedural texture into node Compositor, it became oval, because of Render's aspect ration. Does exist a way to math a value for Texture > Scale input socket, that take Render aspect ratio ...
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21 views

volume shader, Z-combine / indexMA

I have two renderlayers combined together with the z-combine node. One layer contains a surface shaded object, the other a volume shaded object. (File 1) The result is not what I was hoping for. I am ...
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1answer
62 views

Compositor: How to crop an image into multiple versions?

For cases where we want to batch process an image into multiple versions, it's fairly straightforward if only changing the scale. But if we want to vary the cropping things get complicated. This is ...
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2answers
88 views

Z-Buffer render gives unexpected results

I'm rendering blender's z-buffer to an image using render layers under compositing in cycles, but I'm noticing unexpected results. Here is an example of a typical z-buffer render (not from blender). ...
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28 views

Why does my imported image appear without color in the compositor viewer?

I had imported a movie clip into the compositor and began adding another image, when I noticed that in the compositor backdrop viewer, the image appeared black and white, even though the original ...
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26 views

Star filter effect in Blender?

Is it possible to achieve a realistic 'star filter' effect procedurally in Blender? I think the glare node in the compositor might help me, but it doesn't seem to have the rainbow color effect that I'...
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1answer
190 views

Cycles - glare/bloom isn't working?

Ok, Im very new to nodes with the actual render but Im trying to do what these people did, just get a basic glow around my emissive materials: unity animate object transform into another How do I get ...
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1answer
19 views

Switching resolution wipes rendered layers?

If you render with the usual F12 render button, then any previously rendered layers get blanked out and re-rendered. If you are manually rendering via the button on nodes in the compositor, you can ...
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0answers
22 views

Compositor File Output Node overwrite?

In the Output tab of Render settings, you can set the output options for rendered animation. One of the options is to have new renders overwrite the previous ones or not. The File Output node in the ...
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1answer
30 views

Compositor : export output node when we want ?

is there a way to save output file , after the "F12" render is done for example , i created an output node for my passes ,and the way it work is that the passes are automatically saved when the "F12"...
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2answers
20 views

bring the output of compositing into blender material node editor

Hi is it possible to pipe the output of compositor directly into the material node editor ? the current workflow i use seems cumbersome, where i need to render out (file out) first then reimport ...
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1answer
71 views

How do I get this blurry effect with the Blender compositor

I'm new to the compositor and I'm trying to achieve this effect: a little close up I have tried using the pixelate, blur and directional blur nodes but the effect isn't the same, btw I got the ...
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0answers
9 views

How do you apply node-based image effects to an image loaded from a file?

I want to apply the Glare node to an HDR image that I load from a file. I know how to apply it to an image that I render: I render the image, and then while it's displaying, I enable "Use Nodes" for ...
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0answers
25 views

Why some viewer screens appear darker? [duplicate]

I'm new to blender, mainly using it as a video editor (editing on the VSE and using Composer for effects as chroma keying, etc.) and i'm having a problem which a really don't get. Sometimes, when I ...
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59 views

Making Renders look like Digital Paintings [closed]

I've seen a lot of 3d renders that really don't look rendered at all, most notably a lot of Gleb Alexandrov's work. I'm getting an idea it has to do with multiple factors including post processing and ...
3
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1answer
71 views

Lighting objects passing through a portal in Cycles

I've created a portal based on this method. Here's what it looks like: Light passing through the portal is not handled accurately; instead I've faked it by baking the light from the outside onto the ...
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0answers
61 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 ...