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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138 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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1answer
258 views

How can i render only one object but still have the rest affecting it?

Is there any way in blender, to render only one object from this big scene but still have the rest of the objects affecting it ? I need to change material to this small piece but i dont wanna render ...
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1answer
122 views

rendering objects in a scene separately

I know that it is possible to render diffrent parts of a scene in different layers but if the object that i am rendering on a specific layer is occluded by an object from another layer will the ...
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1answer
71 views

How to combine Render Layers correctly

I am having a problem with my render layers. For clear illustration, I created a plane and a box. The box is partly beneath the plane. The plane is on my first render layer and the box on the second. ...
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1answer
26 views

ID Mask by Pass Index in bpy

New to Blender, and the documentation for bpy is throwing me for a few loops. I got a setup in the compositing layer working for my desired goal as shown: This renders an image and a color-coded mask ...
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2answers
49 views

How do I darken shadows from a shadow catcher in the compositor?

I am working on a shot of a car sitting in a plane integrated into a video I shoot. When I rendered the image sequence I separated the shadow from the car (when I was rendering the Car itself I ...
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9answers
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Why does my object not show up?

This is meant to solve this problem once and for all. What is every reason an object isn't showing up in a render or viewport in when using the cycles render engine?
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9 views

Render is a gray screen, not sure why [duplicate]

I am rendering a scene but it only shows up as a gray screen and doesn't even start rendering the camera. Not sure what is happening, I have looking into numerous posts but to no avail. Any help is ...
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1answer
52 views

Why isn't my render matching up with renderview mode on blender 2.8?

This picture is in render view mode This picture is what happened when pressed render image.
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Why rendering an animated scene all of a sudden freezes computer?

hopefully someone can help me with this question. As of about 2 weeks ago (where before everything was fine and smooth) Blender freezes my entire computer when i try to render a pretty simple scene of ...
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1answer
188 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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680 views

Render is taking way too long [duplicate]

So I'm rendering an animation of 420 frames and each frame is taking more than one hour. I have two render layers, both with the same settings. One is the background and the other the principal object ...
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0answers
32 views

Animation Denoising (using the temporal denoiser) - Looking for the final piece of the puzzle

Alright, I've been diving into the secret Blender animation denoiser function that was briefly mentioned in February of 2019 by Pablo here: Denoise in Animation! - Blender Today Live #49 and is ...
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19 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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1answer
27 views

Can I render isolated objects but keeping all the impact of other objects and their materials?

So I chose all the objects I don`t want to be rendered and changed their visibility, and then rendered the object I want, but it looks different while being isolated. Can I render it like if there are ...
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1answer
9k views

Blender 2.8 View Layers - “Exclude” feature

Does anyone know where the "Exclude" and "Mask"-features can be found for the View Layers, (formerly "Render Layers") in Blender 2.8?
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31 views

how can i make blender render only the visible parts of the object?

(i use blender 2.79) it seems when blender renders an object it does render also the non-visible back of that object and for that reason, it increases the rendering time. so to test my theory I had ...
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1answer
320 views

Render layer selection when rendering via python

I'm working on a script that renders certain render layers defined in the operator. The script is supposed to make a list of currently enabled render layers, disable all of them, and then enable the ...
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1answer
67 views

Animation sequence Render Layers + OpenExr

i am trying to render multiple renderPasses, which i know how to do In a sequence, which i know how to do, using MultilayerOpenEXR which i know how to use. But togetger it just aint working. What ...
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1answer
53 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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31 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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0answers
38 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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0answers
168 views

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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2answers
61 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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0answers
10 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
55 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
25 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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1answer
193 views

Rendering objects only for left or right camera in 2.8

I am working on a stereoscopic animation in 2.8 where some objects in the scene should be visible only for the left eye and others only for the right eye. I use multi-view stereoscopy in cycles. I ...
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0answers
31 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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0answers
41 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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0answers
19 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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2answers
5k views

Blender Compositing not working

As stated in the title, my blender compositor is not working. I have followed this tutorial (https://www.youtube.com/watch?v=fWcCkQ3943Y) but the compositor effects do not show up, even after ...
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0answers
12 views

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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22 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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1answer
135 views

Render image output was disappeared with White screen

In cycle render mode all objects are clearly rendered, but in final render image, objects are disappeared. Here my output->>> https://i.stack.imgur.com/MlMYZ.jpg Help me to find the solution ...
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1answer
248 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 ...
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1answer
37 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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0answers
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
61 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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2answers
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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1answer
121 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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0answers
71 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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1answer
128 views

Problems with Render Layers

I seem to have nothing but problems with compositing and Render Layers. :-\ Every tutorial I’ve followed so far on Blender Guru, I’ve been unable to replicate the process whether in 2.79 or 2.80. As ...
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0answers
28 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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0answers
98 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
87 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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1answer
34 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
243 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 ...
2
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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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0answers
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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