Questions tagged [denoise]

Denoising is the processes of getting clear signal (image) out of a noisy one usually by smoothing out the signal around a local neighborhood (a couple of pixels around the target pixel).

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Is there any way to get rid of pixel bleed happening in UV Bakes that occur along the seams of an object?

I'm trying to bake a 4096x4096 image of my object (diffuse, normal, rough, ambient occlusion) and I'm using a UV that can't be changed (meant to be uploaded to a game tool) and whenever I'm baking, I ...
Troy's user avatar
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Why is the background so full of noise?

I rendered this animation of a coffee mug with a smoke simulation to create the hot steam but the background is almost distorting like with heat distortion. I do use depth of field and the focus ...
Arceus's user avatar
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Denoising makes fabric texture smooth [duplicate]

I am tying to render out a gift box with a canvas/fabric texture. Renders with Denoise turned off appear fine, albeit with plenty of noise... whilst rendering with denoise turned on will correct the ...
Celer Studios's user avatar
1 vote
1 answer
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Strange results from the denoiser

I am working with a render, which shouldn't be that hard on the denoiser, nevertheless, well, I think this image says enough: This render was after a hundred samples, and the noisy render it is based ...
TT-392's user avatar
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Noisy rendering problem, trying to get back to previous render results

I don't know what I've done wrong but my renderes are now coming very noisy and blotchy no matter how high I raise the sample count. I had earlier renders that looked sharp and clean like the 1st ...
Jorge Bernal's user avatar
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34 views

How do I get rid of noise using temporal denoising?

I have to render an animation in Blender, but when I rendered out the animation its all noisy and jittery. I played around with both the samples and and noise threshold but still gets noise in my ...
Adnaan Khodabocus's user avatar
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1 answer
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How to eliminate subtle flickering in animation output

I've got an animation I've rendered that looks pretty good, with exception of a subtle flicker in the highlights. Unfortunately I can't share an example as the work I'm doing is under an NDA but I'll ...
AviRenders's user avatar
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transparency issues with denoisers

When rendering an image of an object set unto a transparent background, it is observed around the edges of such object that small pixel-sized artifacts appear beyond the 0 opacity boundary. Color is ...
Matthew Cronembold's user avatar
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134 views

"Noisy Image" connector is missing in compositing?

When I tried to denoise the image, following the tutorial. There is no "noisy image" connector in compositing. I've enabled the "denoising data". Thanks for your advice in advance.
yutong d's user avatar
1 vote
1 answer
100 views

Temporal Denoising: EXR image sequence node in the compositor is missing vector output

I'm on Blender 3.5 and trying out temporal denoising within the compositor as shown in this video by statix vfx: https://www.youtube.com/watch?v=851cEK0Taro&t=3s I've rendered my EXR sequence with ...
joyfulparallel's user avatar
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Noisy .png after rendering Gloss passes

I'm using Cycles as my render engine, on the latest version of Blender 3.5.1 In compositor, I used a set of nodes to seperate the highlights (glossy) from the rest in order to save it seperately in a ....
art_stuff's user avatar
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Denoise Node Not Working for Image Node

I am in a situation that I want to composite noisy renders, normal maps, and albedos rendered by someone else from Keyshot. Denoising in Keyshot is quite bugging therefore we are experimenting with ...
Kebei Li's user avatar
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194 views

How to remove anti aliasing in render

i am rendering out this image and I have anti-aliasing along my edges. My noise threshold and min samples are set to 0, and my pixel filter is set to 1.5 on gaussian. Is there a way to blur these ...
Peter Randall's user avatar
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Cycles Render. How to reduce noise while preserving texture?

I use Composite denoise when rendering in Blender Cycles. However, due to denoising, the texturing disappears or fades. How can I render textures with minimal noise? thank you. I want to produce a ...
hiroki's user avatar
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Weird oily noise in renders [duplicate]

I'm keep getting these weird oily spots on renders. The black wall in the back, the wooden wall on the right, and the hair. The spots only show up on dark colors. The picture is at 800 samples but ...
Search's user avatar
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How to optimize hair rendering?

I'm rendering a character animation with particle hair in Cycles, but no matter how I increase sampling, the hair is still not clear as the rest part of body. I've tried to render with 100\1024\2048\...
Oxide's user avatar
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Huge amount of noise is generated by overlapping several glass objects and de-noiser misbehave in Cycles - Blender 3.3

I am working an animation with simple particle emitter, the object has a complex glass shader to bring refraction and a bit of rgb separation. The problem is that when the particles overlap, which is ...
Damian Velasco's user avatar
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Denoise makes Image pixalated in Cycles

Hi I wanted to render an image in Cycles and I enabled denoising to remove the noise from the image. But now my image is always pixelated/blurred. Does anyone know what this could be or what settings ...
Nils Schmidt's user avatar
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525 views

How do I keep the noise in my Cycles render (animation)

Blender automatically reduces noise on Cycles renders now, but I don't want that. Googling this comes up only with ways to reduce noise, but I want to keep the noise you get in cycles.
litleangle's user avatar
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I keep getting shapes outlined on the model when rendering in cycles when using specific nodes from the shader editor

Usually whenever I render in cycles, either when using the glossy node, the glass node, or the translucent node in the shader editor, I have shapes within the model showing up. How to fix? Is this ...
Alex Oliver's user avatar
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Blender 2.9+ Cycles missing denoising

I Tried to follow tutorials for improving rendering, because i couldn't find the denoise option. Turns out im just completely missing it, and i have nothing of the likes in my sampling. I opened my ...
Lyall K's user avatar
2 votes
1 answer
1k views

How to stop flickering in dark animation? [duplicate]

Hi – I’m having problems with flickering in my scene when I render the animation (there's two renders in the video I linked to, the first with no BG light and the second with plenty). I’m going for a ...
Andy's user avatar
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Subsurface light flickering with a cycles rendering engine

I got a problem with lanterns in my rendering scene, and I noticed flickering in the lights in my video. I can't try to render with more samples since 25 samples already took me 5 hours. The ...
Apple Sun's user avatar
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How to denoise when baking into vertex color (color attributes)

I've been searching for quite a while for a solution for this but haven't been able to find anything. As part of custom level making for the PC port of jak and daxter, the vertex colors are used as ...
Kuitar's user avatar
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Denoising created weird glowing artifacts on character

Whenever I try to render an image with my girl character, a weird glare is created at the end, when it denoises. Any idea why? Thanks
Jon Adamich's user avatar
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499 views

Denoising results in flickering on fur regardless of high sample count

Every time I render this test animation, the denoising is resulting in different patterns of smoothing for each frame, making the flicker. Everyone online suggests upping the sample count, so I used ...
Leo Schunn's user avatar
2 votes
0 answers
54 views

Archviz animation - skip every frame and use FlowFrames or temporal data denoising?

I’ve been having trouble with the best method to render an interior archviz animation scene in Blender, using Cycles. In my opinion, there are two methods: 1 - Render every other frame (resulting in ...
lightwriter's user avatar
1 vote
0 answers
172 views

Why is my render blotchy and how do I get rid of it?

So I have this scene I'm trying to render and I noticed no matter how many samples I use, I can't get rid of the blotches on it. I used 1200 samples in this render. I'm using cycles. This took 4-ish ...
Todahmoon's user avatar
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2 votes
2 answers
1k views

How to denoise EXR and its passes?

How to denoise EXR and its passes in Cycles? I tried enabling Denoising Data and it didn't work.
saifart101's user avatar
1 vote
1 answer
304 views

Can I Denoise pre-rendered footage?

I have a reasonably lengthy sequence of PNG's which I rendered while I was away from my machine. To my chagrin, I returned to find that I neglected to enable denoising data at render-time! I am left ...
Pierre Ducos's user avatar
1 vote
1 answer
655 views

Losing quality on image texture with denoiser

I'm making a backrooms animation and I've stumbled onto a problem, the denoise node is creating washed out patches on the carpet texture I'm using which really removes the immersion I know a simple ...
TheBeastlySoul's user avatar
2 votes
0 answers
839 views

Denoising depth purpose?

What is the point of the "Denoising Depth" pass when using the denoise node in the compositor? When you select "Denoising Data" from the Blender view layer properties, it gives 3 ...
Skyline X's user avatar
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1 answer
554 views

Straight Dark lines on object and the render

Straight Dark lines appeared after I choose Cycles as render engine and turn on denoising with Optix. Even I turned off denoising this is happening. Even in the render, those lines appear. (Below is ...
Supun Tharinda's user avatar
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1 answer
59 views

A good GPU based de-noiser for AMD?

Is there any decent de-noiser for AMD GPU's on macOS via Metal? I've been using my new AMD eGPU for Cycles X since support was released a few weeks ago, but one of the problems were that the ...
Skyline X's user avatar
1 vote
1 answer
536 views

How to denoise already rendered Open EXR Multilayer image sequence?

I rendered my scene with open EXR multilayer with the following passes: -Data: Combined Denoise Data (Do I have to tick this?) -Light: Diffuse (Direct, Indirect, Color) Glossy (Direct, Indirect, Color)...
GregSmack's user avatar
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185 views

Denoise for animations on laptop with CPU only in Blender 3?

I'm trying to make some simple animations of stuff imported from Minecraft. I have an MB Pro from 2019, so no GPU that will be of any use. Denoise for images works super well, even with images ...
Anders Bornholm's user avatar
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0 answers
20 views

Why Render looks smudgy in cycle engine [duplicate]

I'm having a rendering problem here in blender. The render looks smudgy and this never happened before. Usually, I use a very standard amount of samples around 128-256. I use the blender 3.0 version ...
bryan hoe's user avatar
2 votes
1 answer
216 views

Wavy Artifact in Viewport Rendered Mode

My rendered preview has these really weird artifacts. I found them inside of the actual render too. I don't remember changing any settings that could have made it this way. I tried turning denoising ...
Sid's user avatar
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0 votes
1 answer
495 views

Viewport Denoising Doesn't Load

So I'm currently trying to enable viewport denoising automatic using Cycles in Blender 2.93, but whenever I do the viewport turns grey and it doesn't load (it stays stuck on "loading render ...
Ryan Nyberg's user avatar
2 votes
2 answers
111 views

How to reduce noises of light reflection on the static object in video?

I am not sure what is this problem called. There are many noises of light reflection on the ground. They are different between frames. How do I reduce it? Or how to make it more realistic? Can texture ...
Jill Clover's user avatar
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0 answers
133 views

Blender Denoise doesnt work [duplicate]

In the Denoise tab in the Render properties there is nothing to select, but I want to use the Denoiser. If I try to render an image with denoise on the result is a black Image. Blender Version 3.0 My ...
caligorax's user avatar
1 vote
0 answers
1k views

Blender 3.0 Denoiser disappeared

I installed a new Blender 3.0, but there is no tool in the setting Denoiser. I have reinstalled several times new Blender 3.0 without changes. In Blender 2.9.3 and and earlier versions Denoiser works ...
user9731943's user avatar
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0 answers
161 views

Is using the denoise compositing node to denoise FFmpeg video possible?

If so how? If it's not possible to do it with FFmpeg are there any other video formats that are compatible with the denoise compositing node?
user136739's user avatar
2 votes
1 answer
668 views

Do I have to activate "denoising" when using the denoise node in the compositor?

So here's a regular denoise node setup. I just learned this recently. But normally, I wouldn't denoise in the compositor. I would just denoise using Optix by ticking this. Based on my understanding, ...
Sohail Nordin's user avatar
1 vote
2 answers
591 views

Why does OptiX Denoising work in Viewport but not Render when rending a specific (large) scene?

I cannot get OptiX Denoising to work on the final render for my complex scene. However, if I create a new scene and render the default cube (using low samples as a check), OptiX denoising works for ...
sgbrown's user avatar
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123 views

Render pass with denoise node not saved when rendering thru command line

I'm a noob Blender user but a long time 3DS Max user. I have set up render passes to be saved as separate EXR file. All passes render out and saved in the correct place when test rendering within ...
ken's user avatar
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2 votes
0 answers
658 views

(De)noise artifacts in animation

I have a simple scene with focal point animation, and when I render it there is some crazy movement in the highlights, that I'm pretty sure is due to the denoising, i.e. that the noise pattern changes ...
Jellby's user avatar
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1 vote
0 answers
83 views

Despeckle not working properly

When i am using despeckle in the compositing tab to clean up a depth pass it just slightly reduces the noise. In the video I am watching one despeckle already works better than 6 for me. first picture ...
rafe's user avatar
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1 answer
206 views

Weird distorsions in light when using denoise node [duplicate]

When using the denoising node I happen to have some distortions where the light bounces. When I increase the samples to 600 it's reduced but it still be noticeable. What may be causing this effect?
Miki's user avatar
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1 vote
1 answer
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I cant find denoising but I have blender 2.90.1

So I made a roblox gfx and it has denoising, but I made a new one, and it doesnt. I have no idea why- and the difference is very clear. You can also see that the second one is kinda transparent. And ...
Mikia's user avatar
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