Questions tagged [render-layers]

Render layers are used to separate pieces of a scene for rendering. Those layers can then be treated differently in the compositor.

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29 views

The number of samples in the render view does not go up

I don't speak English, so I use a translation tool! The number of samples doesn't go up in the viewport render view, but somehow the number of samples goes up when the blender is minimized! Is there a ...
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35 views

I have an idea about a faster way to render and i want know that this idea will work or not?

(i am not native english speaking, Sorry for bad english) Let me explain that idea by an example suppose i have a scene with some 3d modals and or may be some fixed lights or may be moving lights and ...
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2answers
58 views

Outline on transparent background

I'm rendering my scene on 3 separate render layers with transparent background. All layers have strange tranparent outline (around hand and laptop on picture) which I tried to fix in compositor with ...
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18 views

How to Composite a CG object behind a real object? [closed]

I am looking forward to compositing CG objects in real life footage, want to know how to composite a 3D object behind a real object. For example a CG gun in real hands. Please help. (I am an ...
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9 views

Use of cycles & octane on a per scene base

So I try to have one scene with cycles for my planet where I have a shader that helps me with the atmosphere generation. And I have a scene with my space ships that I want to render with octane. In ...
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1answer
49 views

How to render alpha channel and depth map quickly without having to re-render the whole animation?

So I've finally managed to complete my first animation, it's an animated version of a scene build I created and I decided to outsource it to a render farm for completion. Now that I've got it, I've ...
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2answers
23 views

Whenever I tried to add a material slot to a tracking scene plane, it shades out black. The File is in **EEVE Mode**

In blender version 2.82, in EEVE Mode in rendered shader-view when I tried to add a material slot to a plane, which I generated by tracking a scene, the plane shaded out black with no texture. I ...
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21 views

Cryptomatte - Clean edges

blender people, please, does exist a solution to make a clean render pass for ID colors - materials? I want to achieve a same solution like in VRAY - material ID. After that, I want to import it in ...
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Grease pencil overlapping only in render view?

I have a small room I'm working on, and I adjusted things to how I wanted them in the Layout tab. I did want to give it a slight hand drawn feel, so I know this means the strokes aren't super accurate....
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13 views

Light Path Expressions (LPE) in Blender

It seems like blender does not have a feature to render light path expressions like these in RenderMan. There's a thread on devtalk about this but I havent seen any further updates. Essentially, I ...
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1answer
40 views

In Blender 2.8 how do I render the world once for all view layers?

I have a setup where I have one collection that is a background and one that is silhouetted against it. Each of these is in it's own View Layer. The background one rendered straight, the foreground ...
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How to retrieve correct normal information of a render? [duplicate]

How can I get the the same vector for every angle on denoising normal information when rendering in Cycles? I realized that, based on the camera angle and its position, the normal vector is different....
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20 views

Techniques to composite geometry and volumetrics together for an animation

Hello everyone I hope you are hanging in there! I spent about 2 hours trying to figure this out with Stack and YouTube but still can't wrap my head around this. The scene below will eventually ...
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Why is my render result disappearing after denoising? [closed]

I wanted to denoise my image in compositing. I don't know why it is disappearing after connecting with denoiser. Edit: I solved deactivating Progressive Refine from Render Properties > Performance > ...
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1answer
28 views

problem with lookdev mode?

I'm using Blender from a 1-month. I don't know what happened suddenly it changed to Material Preview mode no lighting no environment scene. Even after pressing Z key to go to LookDev mode even there ...
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28 views

Text not rendering in motion track (2.82) [duplicate]

Using Blender 2.82 and I am trying to animate text over a meme template (yes, i know there are easier ways to do this but I wanted to try it in Blender to expand my skills a little bit). I have been ...
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2answers
47 views

How to render some of view layers only (instead of single or all of them)

I have LOTS of View Layers (generated in Python), and I only want to render and composite several of them at once. When I checked "Render Single Layer" in View Layer options, only the active one in ...
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20 views

Make objects reflect from separate view layer 2.8

My last post of this was marked as a duplicate for glass shaders. I want to make explicitly clear, I am NOT asking for glass shaders. I'm doing a bit of archviz for a buddy's bathroom remodel, and I ...
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55 views

How can I get pixels from multiple render passes through Python and store them to generated multilayer image?

First of all I know that the easiest and probably the most efficient and the fastest way would be to add File Output with different inputs, but as far as it is possible I'd like to avoid writing ...
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27 views

Compositing Confusion

I don't have a whole lot of experience with compositing, and im working on a piece for my portfolio. Right now I want to put this on top of this. Only problem is that whenever i come close to ...
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1answer
29 views

Rendering multiple layers separately causes weird black artifacts (2.79b, Cycles)

I have a ground mesh which I have cloned into multiple layers. It is the same mesh, except one has a grass material, and the other is sand. I wish to render these layers into separate render layers, ...
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2answers
198 views

blender kill particles not viewing in render

I am making a harry potter video with friends and I'm adding magic between the 2 wands. I'm using 2 particle systems with gravity off pulled by a force field for the magic and killing them when they ...
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0answers
21 views

Transparent elements are different than viewport when saved as .png [duplicate]

I am working on a project where I composed many layers with an transparent background. Now I rendered the whole thing and when I saved it the result looked different than the saved version (The white ...
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20 views

Eyebrow rendering Eevee for animation

In eevee rendering mode, I have successfully rendered eyebrow on top of a character's face when the front is facing the camera using "alpha over" node. But, eyebrow would still show up even when ...
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1answer
106 views

Cropping background image when rendering region

I have this scene with a hand and a knife and I want to get an animation of blood sorta dripping (spraying) from it, but because of SSS I use in palm material it takes forever to render (over 4 ...
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78 views

Blender 2.8 Using z height (Depth) gradient to reduce mist intensity

I'm trying to find something for 2.8 but struggling. I want to use the z height (depth on render layer?) to reduce the intensity of mist (composite layer) exponentially as height increases. ...
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1answer
141 views

how to render multiple things separately

I'm using Blender 2.80. I have a scene, where I fire 20 cannons at the same time, with smoke and fire. How can I render (with Eevee render) some cannons separatley? (i.stack.imgur.com/lXFuK.png)
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1answer
25 views

Why can't I use put Render Layers in a node group? (Compositor)

When I try to create a node group that includes the Render Layers node, I get an error saying it can't create a group with that node. Is there a reason why or some way around it? I don't want to have ...
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2answers
36 views

Rendering: Excluding a layer while keeping it's influence (Masking?) [duplicate]

I am making this Christmas Tree but the problem is that I can't render the whole scene in one go because of too many particles. So I have rendered my tree and now I want to render only tinsels wrapped ...
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10 views

Renderresult Objects moved in a wrong way

I have a project in which I want to combine three layers. In every layer I have a particle system with a force field, this is why I can't put them in one layer together. I have three layers with ...
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13 views

How do I deleted a scene collection without deleting the scences inside that collection

Pretty self-explanatory. In the Outliner Window, I have a few scenes. However, all the scenes are under a 'scene collection' and I would like to remove the scene collection from the hierarchy.
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38 views

How to get luminance value of every pixel from the rendered image?

This link below shows how to get value of RGB color and z-depth from viewer node, that corresponding to the value on the pixel information bar (figure below). Link : How to get Color and Z-Depth from ...
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1answer
139 views

How to save render layers for later use

This is probably a silly question, but I'm struggling with it. When I close Blender and open it up again I now have to re-render the scene to be able to use them again in the compositor. I have read ...
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34 views

Child object on different render layer?

I'm learning about compositing from an old pre-2.8x tutorial. The tutorial shows that an object parented to another object can be moved to a different view layer, which is then used by render layer to ...
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1answer
106 views

How to save Denoising Data and the noisy image of Cycles Render

I'm struggling on how to save all denoising data information like albedo or normal information when rendering an image using python api. It should be something like: ...
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69 views

How do I render a render view layer using the command line in Blender 2.8

It is possible to render using a specific scene but I did not see how to select only a view layer. The only solution I found is by unchecking the "Use for Rendering" button for each undesired layers, ...
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13 views

scene and camera tracking

how can get the same set up scene and layers that I get automatically with "set background" and "set track scene" in camera tracking? I try to explain better: when you use tracking point in Movie ...
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1answer
75 views

How to re-render specific view layers?

I have a scene split into several view layers. They are rendered separately and then put together in the compositor. I would like to re-render only some specific view layers, not all of them. How can ...
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43 views

2.8 eevee render collections separately but with reflections, and render preview

Hi, how do i render the background and the objects separately in 2.8 eevee while keeping the reflections and transparency? I want to render the objects in the front and the background separately so ...
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24 views

Why would particles swirl in wind during design but not during rendering?

In a 14 second long animation, I have a particle system emitting objects from a logo, and a plane with force field physics as a wind source, moving during the animation so the particles swirl in ...
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43 views

how to add mist in the 2.8 compositor?

I enabled the mist pass in my render settings then rendered via sheep it. however i have no mist settings on my image only a depth. and i cant seem to get the mist to appear
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27 views

Any way to render sections and combine them in Eevee?

So im using the noise and bandwidth dodge filter method to make nebulae in Eevee and I want the most quality I can muster. Problem is, doing the max quality and some high samples kinda breaks Blender ...
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14 views

Cell fracture question

Once I generate a fracture, I want the collection that the fracture is on. I want it to disappear and reappear depending on the timeline. How would I animate that in blender 2.8?
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390 views

How to make objects ignore certain lights in blender 2.8?

In Blender 2.8 in Cycles, how can you make an object ignore certain lights? Lets say I have a cube in collectionsCube and a bunch of lights in collectionsLights, how do I stop collectionLights from ...
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1answer
84 views

How can I make two objects look like one?

As the titles says, I want two objects to LOOK like they are actually just one. I dont plan to actually combine anything, for flexibility purposes. Here's an example scene for what I've got going: ...
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2answers
383 views

Material Overrides for view layers (per object)

I've been a casual Blender user for some time now. Really enjoying the progress in 2.8, and use this now over maya for most modeling needs, and would love to ditch autodesk altogether, but there are ...
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1answer
85 views

Blender 2.80 object won't show in render (.blend attached)

I'm using Blender 2.80. Object shows in outliner and in viewport, but won't show when I render. I've been struggling for over a week now, what am I doing wrong? Here is the file, the problematic ...
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130 views

Grease Pencil export to PSD layers?

I am working at a studio that uses Photoshop as its primary storyboarding tool. Is there a way to render / export Grease Pencil animation as a multi-layer PSD image sequence? Can GP object layers be ...
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1answer
86 views

Holdout Layer not using AlphaMaps in Blender 2.8

It seems that the HoldOut Option in Blender 2.8 does not use alphaMaps with transparency to create a proper holdout ? can somebody confirm this or do I have to tick some option to get this to work ? ...
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29 views

Create custom RenderLayer

I was wondering whether it is possible to create a custom RenderLayer? I would like to have a "Roughness" RenderLayer like DiffuseColor or SpecularColor. Is there any way to retrieve information from ...

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