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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4 votes
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split up and render depth slices (for extreme dof)

I'm doing a particle simulation of fire embers swirling around, to be matched up to a filmed plate. The plate has a very shallow depth of field, which creates a problem when comping it in. It takes ...
4 votes
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999 views

Can you link render settings across all scenes so they can all be changed at once?

I have multiple scenes to render and in my "master" scene I have set up the render nodes to output the render of all scenes. This way I only have to hit the Render Animation button once and all of the ...
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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. ...
3 votes
0 answers
443 views

Render Layer ID for material in Cycles?

It would be useful for some particular final render to have multiple render layers where the render can choose material features based on a Render ID. Object ID is a similar precedent. Is that ...
3 votes
1 answer
770 views

How to duplicate render layer

could be render layer duplicated? With all its properties and freestyle settings preserved ? There is only button for adding, but newly added layer is not set.
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Why is image plane not detected by mist pass in EEVEE?

I have a couple of image texture planes in my scene. They render as expected upon applying mist pass in Cycles, but in EEVEE the planes are invisible in the mist pass while other test objects (the ...
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2 votes
0 answers
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How to save all render views when rendering from command line

I have a quite big file with which I have troubles working through the UI. So I have seen it is possible to launch rendering from command line. My scene is a single frame anyway with 5 render views (...
2 votes
0 answers
48 views

Generate 3D Profile of Space Occupied by Moving Closed Objects

The image below illustrates a model of six rigid links connected by six revolute joints. I've written a Python script to make the mechanism articulate around its joints and move relative to its fixed ...
2 votes
0 answers
62 views

Unit of the color in of the Diffuse Direct/Indirect passes in Cycles render

When I read a pixel's red value 1.0 from these passes, is the value I read radiance, radiosity or irradiance? Is it 1.0 W/m^2 or 1.0 W/(m^2sr)? My understanding is that a sensor is sensitive to ...
2 votes
0 answers
92 views

Problem with render layer (normal) in eevee

I have a material made up of two principled BSDFs separated by a mix shader which has a mask. The render works fine but when I see the render layer (normal) it only takes the normal map of the first ...
2 votes
2 answers
642 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 ...
2 votes
0 answers
148 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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2 votes
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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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2 votes
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3k 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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2 votes
1 answer
3k 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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2 votes
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330 views

Best Practices For Compositing a Complicated Animated Scene

I'm working on an animated scene that I would describe as complicated. The scene is large so to decrease the memory load, I have each part of the scene split into a separate .blend file. Each ...
2 votes
0 answers
60 views

How to handle disabled layers in Multilayer EXR?

I prefer exporting frames in Multilayer EXR with turned off Compositor to save some RAM. When scene involves disabling render layers, Multi EXR just throws them out. Here you can see, that layer "2" ...
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2 votes
0 answers
210 views

How to append render layers from one scene to another?

I have two scene versions. The scene content of both are equal, but I have added some new render layers to the second version. Now I would like to append the render layers from version 2 -> version 1....
2 votes
0 answers
609 views

Renderlayer with different world settings?

is it possible to have a renderlayer with different world settings? In my current case I would like to have a separate renderlayer to create a volume light. Thus I need to create a volume world ...
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2 votes
0 answers
242 views

How to combine layers with lots of objects that have alpha textures?

So here is the problem. I have 1 layer with lots of objects with alpha textures and another layer with 1 solid object, positioned to appear somewhere in the middle of those alpha-textured. I have ...
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1 vote
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37 views

Can you use a render layer output as an image texture input in a shader for a separate render layer?

I want to recreate the grass effect t3ssel8r has in his unity project as shown in this video. It looks like the best way to do this would be to have billboarded sprites for the grass. And to render ...
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1 vote
0 answers
86 views

Can we use "Grease Pencil" to mask other objects?

I'm trying to use a "greasy pencil" to cut out other objects. Like this red cube in the example. The white cube and the pink circle are in a collection. I want to make an object go through ...
1 vote
0 answers
42 views

How to apply mist pass on grease pencil objects?

I'm working with a set of grease pencil objects and would like to fade the distant objects using the mist pass but they don't seem to be affected by the pass. What can I convert these strokes into so ...
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1 vote
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16 views

Material Preview - OK / Render Preview - Black and White

I was working in a scene and, suddenly, all the Render preview and render itself got Black/white (no shades at all). Material Preview continues ok, it happens only on render. For both Evee and Cycles....
1 vote
0 answers
6 views

How do I make a certain render layer a "Background" render layer?

When you do a VFX scene and click the button "setup tracking scene", it automatically makes 2 render layers: a "Foreground", and a "Background" render layer. And the ...
1 vote
0 answers
173 views

Python bpy 2.8 render directly to matrix/array

I'm new to working with both Blender and bpy, and I'm trying to render directly into Python. Best case, I could render directly from bpy 2.82 into a byte stream or numpy matrix. I've been trying to ...
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1 vote
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26 views

Can I render out different passes at one time?

I want to render out 1 pass and not the other in my scene, but when I try to do that, blender renders out both passes at once. Is there a way to disable some render passes so I can render single one ...
1 vote
0 answers
318 views

Composite multiple cameras in one image

I need to create a workflow where I can composite 13 cameras together in a file, all filming from different angles in a scene, with different resolutions for each. I already created 13 seperated scene,...
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1 vote
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290 views

How do you get 2 render layers from an exr file?

I am compositing a scene with 2 render layers. I saved it as an image sequence of EXR files so that I can close the program. However, after compositing, the Exr doesnt keep data from separate render ...
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1 vote
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53 views

playing with View Layers - are they always all rendered?

I'm playing with View Layers since I have to separate a lot of stuff from a scene. It's working great but I was wondering how it does impact the render performances. If I have, let's say, 10 View ...
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1 vote
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877 views

Empty Render Layers node in Compositor

I was trying to make some adjustments in compositing, but Render Layers are not showing anything. In the UV Editor "Render Result" is correct. Re-rendering scene from Render Layers node doesn't help. ...
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1 vote
1 answer
918 views

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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1 vote
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113 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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1 vote
1 answer
2k 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)
1 vote
0 answers
44 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.
1 vote
1 answer
384 views

How to layer (transparent) materials?

I am generating layered patterns using procedural textures. that is easy enough in a single material using mix shader nodes. what I would like to achieve though is ...
1 vote
0 answers
312 views

blender 2.8 : temporarily show all visible objects in the scene

When dealing with collection, the object in the 3d viewport will be visible depends on current selected view layer. Some objects won't be visible as they have been excluded from current view layer. ...
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1 vote
0 answers
137 views

Why does Blender freeze when rendering with render layers?

So as the title say, Blender freezes at the last point of rendering when I render with render layers. I'm quite sure that there is some problem with settings but I can't get what. In principle I could ...
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1 vote
0 answers
414 views

Render Layer - Blender 2.8

I try to change my workflow from Blender 2.79 to Blender 2.8, but I struggle with the new layersystem. In previous versions you could go to the 'Outliner' window an say to each object by click if it ...
1 vote
0 answers
68 views

mask layers : are they ignored by freestyle?

does freestyle ignore Mask Layers from the Renders Layers tab ? I have checked the layers I want to be used as masks, but it doesn't seems to work. The only way I found for now is to duplicate some ...
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1 vote
0 answers
172 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 ...
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1 vote
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121 views

Render Layers and Freestyle

I am trying to make an animation where everything but the hair and eyelashes is "Freestyled." I have two different Render Layers: Freestyle No Freestyle I have successfully made the "No Freestyle" ...
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1 vote
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340 views

Different materials on same object in different view layers/render layers

Is there a way to apply different materials to the same object in different view layers/render layers?
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1 vote
1 answer
638 views

Shadow Catcher, Shadow Rendering Behind Tracked Camera Scene

I asked a question before but I think the problem has changed enough to ask it in a new way. I tracked some footage using the setup tracking scene button, and had issues with the rendering. I ...
1 vote
0 answers
156 views

Transparent object showing up in render layer mask?

I have this transparent plane which is the texture face of my character. It's attached to my character which I render on Render Layer 2. On Render Layer 1 I render the background, and on Render Layer ...
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1 vote
0 answers
136 views

Alpha channel mask

Is there a way to mask not the geometry of mesh but it's alpha channel? Here's my problem -cube: layer 1 -fire with alpha: layer 2 layer 2 masked
1 vote
0 answers
454 views

Render layers with and without HDR background

I have a scene with a house in front of the camera and behind the house some trees. I want to render them in separate layers, but I want the HDR image in the background for the first render and ...
1 vote
0 answers
171 views

Best way to render passes off different objects?

I have a full detail version of a model and a less detailed version. For style reasons, I want to render my diffuse pass off the full detail model, and my gloss pass off the low detail version. I ...
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1 vote
0 answers
42 views

Render layer- or render pass-like options when you can't use Film | Transparency?

I have a scene containing An object An animated screen with an image texture/transparency material, which passes in front of the camera, adding a mist-like effect to the scene A background/ground, ...
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1 vote
0 answers
634 views

How to layer greenscreen footage over existing footage in the VSE?

So I have a series of clips in the VSE (audio, video, what have you) and I have greenscreen footage where the green color has been removed using the keying node. This is the footage I have. And this ...