Questions tagged [render-passes]
(Render) Passes can be used to split rendered images into colors, direct and indirect light to edit them individually, and also to extract data such as depth or normals. Use this tag for questions concerning the use of render passes.
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Mist pass gives white edges
Utilizing the Mist pass in the Compositer I get white edges on objects. Why is it, I always thought that the Mist merely defines black to white color depending on distance and nothing more?
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32 views
Does my EXR have everything I need for compositing?
The blender stack exchange community has been super helpful for my project and I will certainly try to give back to other users whenever I can.
I'm ready to export my sequence to OpenEXR Multilayer to ...
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29 views
My Smoke simulation has this buggy blocky shadow
I have been tackling this problem for the last 2 days and I can't find any solution to it.
So, I baked this smoke sim and test rendered it, It has some weird blocky shadow and reflection, I thought it ...
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24 views
Eevee diffuse pass render bug?
I hope this is the right place to post this.
To see the "bug", please go directly to the observation part.
The setup
We need to export the diffuse pass render in low resolution of a scene, ...
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37 views
Save UV pass of specific object to file for later modification of texture
beginner here.
I want to save my rendered images together with auxiliary data that can later be used outside of blender. Specifically, I want to change the texture of a simple object (say, a cube or a ...
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38 views
Open EXR file not getting generated in certain cases
I am trying to generate an OpenEXR file based on the following procedure :
Getting the depth of every pixel to the center of projection of the camera in Blender
I have tried to create a simple scene ...
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1answer
33 views
Ideas on: Realtime Mist Pass via Shading Nodes? [duplicate]
Wouldn't it somehow have to be possible to get a depth gradient into one's material nodes? This way you could have a realtime mist pass in the viewport (like in the picture).
I guess one would need ...
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24 views
Reflection capture of emissive objects
Im in Blender 2.93
I have a tracked scene, the background is a PNG image sequence, and I've created a particle system that is made up of emissive icospheres. I would like the icospheres to cast light ...
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17 views
Load Shader AOV passes from one blend file to another
Is there a way to load the Shader AOV passes from one blend file to another?
I noticed that when linking blend files the AOV material node comes along but the Shader AOV list is empty, so I was ...
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70 views
Access to Render Passes with Python
I need to save both the 'Combined' pass and the 'indexOB' pass. Is there a simple way to use it with Python?
I set the path to save my render -
...
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17 views
How do I render out separate passes to be comped in After Effects? [duplicate]
The passes I'll need are:
Alpha
RGB Colour
Reflection
Specular
Ambient Occlusion
Shadow
Cycles or Eevee, doesn't matter, but they'll need to be rendered out to be used in a different program (not ...
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29 views
Is there any way to not overwrite when I re-render ? Without changing the prefix everytime manually?
I just want to output new renders every time i render rather than those previous one being overwritten - again, without changing the prefix itself !
So eg : Render001-Normal becomes Render002-normal ...
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24 views
Getting Vector pass output for gas simulation
As mentioned in the title, I'm trying to get the vector pass output for a gas simulation.
I have a partial solution by doing the following:
Bake the gas simulation with OpenVDB cache format
Add the ...
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45 views
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1answer
99 views
Can't save a single pass from an OpenEXR MutiLayer file
So, I'll try to make it as clear as possible but I just started working with OpenEXR MultiLayer Output and I might miss some important info. Important to know I render with Cycles.
I'm working with an ...
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37 views
Cycles — Non-translucent glass in compositing passes — Problem
I have a scene that is obscured by a glass plane that has displacement.
The glass curves/bends all the objects that are behind it. << This effect is crucial here.
When I render a scene with ...
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12 views
Viewport Shading vs Render - height offset / discrepancy - Eevee
I have shader that calculate color based on height. I have exact same shader setup in Unity and when I'm comparing results - Unity shader and Blender Viewport Shading giving me matching result. ...
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24 views
Transparency missing from Mist Pass
As the title says, when I render out a Mist pass, all transparent surfaces appear opaque instead of transparent. So if I have a glass door and there's a room behind that door, in the mist pass I won't ...
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62 views
Can I use Mist pass as a Z-depth for post-processing?
I am creating an animated scene with a static camera. And I'm wondering... Can I use a mist pass instead of Z-depth? I find it kinda easier to set up, it almost never needs normalization and it is ...
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19 views
Not rendering properly
hello. I am new to blender. I created this donut. I applied a creamy material to the donut. But in rendering it is not rendering correctly and the donut material is white+light blue instead of cream. ...
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17 views
How to change background color in diffuse color render pass? [duplicate]
I looked around and seems like its not possible according to another post. As a workaround, i'm using a bunch of white images to act as the background color change. Any way to change the black color ...
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46 views
Index OB not working in composite
I´m quite sure this is a error on my side but I just cant figure it out.
I´ve been playing around with the Object Pass Index and used it to create images where every object has a different shade of ...
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1answer
129 views
World Space Ambient Occlusion
Gotta question about Eevee rendering.
Normally, Eevee uses screen space ambient occlusion and screen space stuff obviously generates lots of artifacts, like the one on the picture, where the occlusion ...
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1answer
120 views
How to make diffuse render pass have transparent background?
I have a 3D object that I want to render into separate diffuse, normal & AO maps for use as textures. I am using the View Layer Properties > Passes options to include these layers in the output ...
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22 views
One of my objects won't show in my F12 or final render [duplicate]
I've tried to render my scene but there's an object that won't show up. I've checked the camera, I've checked the visibility, it isn't hidden and it's showing in the viewport. I feel like I've opened ...
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2answers
51 views
Object won't show in render. None of the suggested solves I've found have helped
I've tried to render my scene but there's an object that won't show up. I've checked the camera, I've checked the visibility, it isn't hidden and it's showing in the viewport. I feel like I've opened ...
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112 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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0answers
54 views
Is there a way to auto name my AOV outputs?
So in most other software I use like Houdini and C4D there are tokens you can use to assign auto naming conventions such as the $ (dollar sign) expression.
In C4D <...
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1answer
120 views
Image plane is not visible through glass
I have an image-sequence as a plane imported to Blender in cycles.
I used a "Shrinkwrap" modifier to wrap it on the Body.
When I now put the glass helmet on the character the image plane is ...
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1answer
26 views
I want to remove one object from my render so that it leaves just a transparent background
I want to remove the pool water from my image, so that there is only a transparent background, so that I can add the pool I rendered in luxcore in photoshop.
Right now, because I could not get it to ...
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2answers
33 views
How to enable other passes on background layer?
Here's what my compositor shows when I have shadow pass enabled. How do I enable it for the background layer as well?
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67 views
How do you render a shadow pass from a shadow catcher in cycles?
I have an object (an apple). I've covered it in water droplets using hair particles (from a second hidden emitter).
I only want to render out the droplets and their shadows.
I've set the apple to be a ...
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59 views
Render Passes File Output in Headless Mode
Here is the blender manual on command line rendering: https://docs.blender.org/manual/en/latest/advanced/command_line/render.html
I am having an issue in blender where blender hangs on rendering in UI ...
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38 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 ...
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1answer
187 views
Composite two renders into one image
I am looking to produce an image like this:
Where there are two objects, with one object casting a shadow on the second object. The catch is that I do not want to create this by rendering two objects ...
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1answer
93 views
Depth of Field and Depth Pass problem
I seem to be having some trouble getting the look I need from DOF. Below is a render I did with DOF enabled:
At first, everything looks fine, but, the corners of the glass box is also blurring, which ...
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282 views
Mist pass looks noisy
I have a following problem: when I render my final image with mist pass, the mist pass itself becomes noisy, see in these images:
Mist pass combined in image:
Mist Pass itself:
Could the problem be ...
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32 views
Transparency from shader becomes white when exporting on transparent background [duplicate]
So first time actually posting a question here, but I just can't seem to find a solution.
So I made this fire ramp shader for a project I'm working on, and I want to have a transparent background for ...
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1answer
90 views
Why does ambient occlusion make a black area above emission object?
I did AO in compositor. The body of an emission object is invisible to the camera.
First screenshot - with TURNED ON AO
Second screenshot - with TURNED OFF AO
How it works and how i can keep AO turned ...
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1answer
119 views
Artifacts in render preview after adding emission/volume scatter shader to world output volume
I am following a sword tutorial and when i try to plug in either a Emission shader or Volume Scatter shader in to the world output volume node weird overexposure and artifacts appear in the render ...
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1answer
709 views
How create perfect mask using ID Pass ( "clown pass" in Photoshop)?
Has anyone looked at the tutorial? regular ID Pass so that later in Photoshop it will be easier to select the necessary objects. But what I don't understand is that even if you have this ID Pass (...
2
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1answer
307 views
Automatic AOV shader pass setup for geometry buffer
Is there a way to create AOVs that affects all materials in the scene? I can successfully create an AOV shader pass that outputs world positions of the object material is on:
This gives me correct ...
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87 views
Can I render different passes into different folder automatically?
I have a file output node rendering different passes into a single folder (circled in pink).
I have set up folders for different passes (circled in yellow) and I want to set blender to automatically ...
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1answer
50 views
Blender Output Multiple Passes When Rendering with Specific Naming Scheme (2.8.2a)
My render setup looks like this:
and my file output looks like this (the mist pass is put in that folder with the names "Image0000.png" and "Image0001.png"):
but my desired ...
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39 views
What are Multipass and crypto mattes?
I have animated a character with texture. I want to composite / integrate it into my reallife footage. I have heard about multipass compositing is it possible to get different passes rendered from ...
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62 views
How do I create transparent, 8bit shadows for further use in Photoshop?
I'm struggling with a problem. I created a simple scene in Blender:
As you probably guess, I want to use that scene to create a mockup in Photoshop. The goal is to have a separate shadow that will ...
2
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1answer
766 views
Save PSD (or TIFF) with passes as layers? [duplicate]
I wonder if there is any way in Blender for saving render results in PSD (from what I can see it is not supported) or TIFF file with layers from passes (for example refletion pass, object id, material ...
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1answer
160 views
Return a list of activated render passes for view layers?
I'm trying to get a list of currently activated render passes for a view layer.
For a scene 'Scene' and a view layer labelled 'my_vl', I can query individual pass status by returning True or False (e....
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0answers
78 views
How to keep only Reflections and Shadows but object itself invisible
I want to render only:
Object On the white table
Table surface reflections
Object Shadows on table
Emission particles reflections & gloss on table
I want White Table is to disappear totally
It ...
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0answers
345 views
How do I render a normal pass that is blue/pink instead of red/green?
In my case, it's for an aesthetic purpose. I want to render out a version of my scene that has the blue/pink normal map look. Blender's standard Normal render pass seems to be red and green. I'm sure ...
