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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Can someone explain different denoising options? [duplicate]

There are a bunch of denoising options. These are the ones I know. Can someone please explain me whats the difference between those methods and if they should be combined? E.g. AI denoising + NML/...
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Noise in the animation render

So I did a render for a small animation that I need to put on a website ( needs to be small in size to load fast ). I used 500 samples in cycles with Denoise in this render but it seems to get some ...
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How to denoise night scenes in blender?

Pls help, I've been struggling to reduce noise in this scene and noise ruins all well-done textures and emission materials. Funnel lights are points along with sphere emitters to imitate lamps. Even ...
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30 views

Why my render gets overexposed and blurred after the actual calculation?

While rendering everything is fine, but when 100% rendered the objects become blurry and there is some kind of intense light added to the image: While rendering everything is fine (image while ...
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Stains on white walls_interior render_denoiser [duplicate]

I am trying to render an interior image but I have problems with the white walls. As shown in the image attached there are "stains" caused I think by the DENOISER. (I guess so because of a ...
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Multiple Importance has problem with glass

I have problem with Multiple Importance for Point Light and glass material. Look on the pictures. First picture depict active multiple importance on the all point lights and second deactive multiple ...
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32 views

OptiX Denoising is making the text in my Render come out blurry. How can I turn down the strength of the denoiser?

I have seen this question asked a few times; denoising seems to always blur out finer details in a render, which would be fine, except it blurs out text that I am projecting onto a wall in my scene. I ...
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126 views

2.93 cycles denoising viewport render problem with it just going black

I have updated to the new blender 2.93 and have started 3D modelling within it I am unable to do a have the viewport rendering while I work in cycles because of how pixelated it is and the denoiser ...
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228 views

Blender denoise node not working

This feature has not been working in my laptop since it came out. Basically what happens is when I add the denoiser to the render layer in compositor ,it hangs my laptop for roughly the same amount of ...
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1answer
37 views

My final render with cycles look blurry after denoise [duplicate]

I am new to blender and try to make a room everything look good until I use final render to get a high quality picture the light look wrong I try to use 1 light bounce and it didnt help at all pls ...
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44 views

Why did my Denoising disappeared?

Hello guys I need a little help, the Denoiser below Adaptive Sampling suddenly disappeared. How can I enable it back?
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16 views

Having trouble rendering fire+smoke with transparency

I'm trying to add fire+smoke to a video by rendering out the simulation as a PNG sequence with transparency. It looks fine in the render window and in the compositor but when I drag in the final PNG ...
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27 views

Blender renders are blotchy/noisy no matter what

Blender experts! I've been doing an interior design render recently, and can't get rid of the blotchiness in my renders. It looks like this (just part of the render): The setting of the scene is as ...
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29 views

Denoised render's shadows too distorted without Indirect light clamping - too opaque with Indirect clamping. How do these interact? [duplicate]

You can read in my previous thread about my struggle with this part. I made a milestone just now, increasing Indirect clamp will remove the fireflies, however the shadows are now too opaque. Render ...
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57 views

Donut glass cup render has too many grains and speckles + denoiser come out distorted, shadow is also too opaque. What settings may I try out?

I feel I am nearing completion of the tutorial but am still having gaps in knowledge on how to render light properly. 2.92.0 blender file: https://pasteall.org/blend/6474d6f8bd5f4b1abbabaa41478e7e6a ...
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2answers
116 views

Render shadows without denoise on a transparent background in cycles [duplicate]

I have a problem with the graininess that appears in the shade. I want to render an object with a nice and clean shadow. The result is a png with a transparent background. Render in Cycles engine. I ...
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76 views

Settings or manual for temporal denoiser

I am looking for a manual or documentation or a way to change settings for the temporal denoiser for animation as described in this question: How to denoise animations using Blender's Temporal ...
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76 views

How to properly denoise an animation [local and renderfarm]

I have a project for my college assingment that has to be ready at end of march. I am still "new" to blender but I try my best in every way, so: I have a scene with 400 frames that uses ...
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54 views

Composite cryptomatte video

I’m working on a small animation/film, I will render the frames out as PNG then sequence them together. How do I use the cryptomatte/render passes feature on this animation because when I add an ...
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Is there anyway to reduce an image size without getting noise?

i was triying to reduce an image size right in compositor, using a scale node, but when i render it the image get a lot of noise. i tried reducing to the same size in other software and it works ...
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Why isn't the Image Editor showing the denoising image like in the Compositor?

I am fiddling with denoising a set of images but the image in the Image Editor is not denoised as in the Composition Tab. Is there something that I am missing to do? I have already tried detaching and ...
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1answer
257 views

How do I denoise an image sequence that has already been rendered?

I have completed Andrew's donut tutorial and I have a full set of 30 frames that makes up the image sequence. I opened another Blender tab (closing down the tutorial with saving) to compile the frames ...
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153 views

Cycles wont do the amount of samples I put in at min samples

I don't know what I changed but I've been trying to change my settings to get less noise and a faster render, but now it wont do the amount of samples I want it to. 1 sample takes as long as 1000 ...
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185 views

Speed up Intel denoise

Currently I'm rendering on cpu, because at the time of writing it's faster for me (tested it a few times). I know this is kind of bad and I should get a better gpu, but well, currently it's not ...
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Why is my Final Render Losing Texture Detail when working with Cycles and Optix Denoiser?

The first picture is my material viewport The second picture is the final render using Cycles and Optix Denoiser (No COmpositor) with 1200 samples and 6.00 Light Clamp Is there any way that I can use ...
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Which Denoiser to turn on?

Which denoiser should I use? Does it matter? 1. View Layer Properties Denoiser OR 2. the Intel Open Image Denoise --> which I know is quite powerful. So why use the denoiser under View Layer ...
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72 views

Exporting a Denoised Composited Image Sequence

I just finished Blender Guru's donut tutorial, all parts and levels. However I must have misunderstood how the composite node works, especially in regards to animation (or rather image sequences). So ...
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643 views

Can anyone help me understand what causes this error ? OPTIX_ERROR_INVALID_VALUE in optixAccelComputeMemoryUsage

I m trying to do a rendering with optix on. I just recently upgraded from 2060 to a 3090. I had the exact same error with the 2060 but i thought it was because of vram limiation as the scene that i ...
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14 views

Denoise a bunch of images with correct output names [duplicate]

I have a Blender project set to denoise images rendered in Source Filmmaker. It actually does de-noise the images correctly, but the problem is that the setup and output is confusing. Regarding the ...
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5k views

What is the difference between NLM vs Open image denoise? [duplicate]

What is the difference between NLM vs Open image denoise? also what is the "denoising data" in view layer properties?
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105 views

If I use denoise and render it crashes, with no denoising it renders fine

I use blender 2.79 on windows 10 and every time I press denoise it always crashes while its rendering. But when I don't press denoise it renders fine and it doesn't crash.
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115 views

weird yellow and red grains on my renders [duplicate]

I am working on a scene in blender related to Minecraft but for some reason my render image have small yellow and red spots sprinkled which are barely noticeable , is their a way to fix it. it might ...
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353 views

Advanced OptiX denoiser settings missing in 2.91

Where are the advanced OptiX denoiser settings like radius, strength, feature strength, etc. in 2.91? They were in the view layer settings in 2.83, but I can't find them any more.
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500 views

how can we remove the blurry effect that has been caused by denoising?

(using blender2.82) hey guys i have been trying to add fog to my scene but when i do it i have a lot of noise in the image i tried to use blender default denoise but it made it worst because it added ...
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1answer
311 views

128 samples with node denoiser animation still flickering

I'm trying to do an animation but even if I doubled the samples my video is flickering, in another topic they suggest me to increase the samples, so I moved from 64 to 128 samples but the result is ...
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1answer
26 views

How to save a denoised image in composting

How do I save my denoised render in Blender's Composting tab? Here's how I arrived at my problem... Rendered an Image Opened Composting Added Denoise Node Node worked perfectly Attempted to save the ...
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20 views

Weird and unwanted noise from lighting in interior setup [duplicate]

I am following the blender guru 15 minute kitchen tutorial, and I have been doing good so far, but I noticed when I did a test render, that my scene was VERY noisy, as most interiors usually are at ...
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1answer
69 views

The shadow looks like a wave. How do I fix it?

I can't solve it in 3 hours...
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207 views

Can you use Open Image Denoise on the gpu in blender 2.91 or will it only work on the cpu?

Can you use Open Image Denoise on the gpu in blender 2.91 or will it only work on the cpu? And if you can do it on the gpu, how?
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296 views

Can't find the denoiser in view layer

I am using Cycles and yet it doesn't appear. It doesn't work even when I'm using the denoiser node. please any advice would be welcomed.
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448 views

Denoise in EEVEE: Blender 2.91

I have recently started using EEVEE to render my images. However, it is very noisy. I have not seen an option for denoising, and have tried to use the denoise node in the Compositing tab. Here is my ...
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249 views

OpenImageDenoise not with all cores?

OpenImageDenoise needs a lot of time on Cycles rendering, and while the GPU renders blistering fast 14 of my 16 Threadripper cores are not denoising. Is there somewhere a parameter to tweak to get all ...
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View Layer setting do not show up in certain files

*I have no View Layer settings. But in other files I have all these settings. This is in the Cycles Render engine. In the render setting I can't choose my Gpu or Cpu but if I switch to a different ...
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44 views

The denoiser doesn't work on my render

I tried to do a render but i noticed the denoiser isn't applied. Well at least to the donut. I'm not sure if it worked on my icing. I tried to un-check the denoiser and re-check it but it didn't work....
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34 views

Why doesn't Nvidia optix denoiser appear in denoise drop list?

I am relatively new to blender and i read that Optix denoiser is available on 2.9 version as a choice for non RTX graphic cards. but when i downloaded it i couldn't find that option.
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132 views

Viewport Not Rendering/No Lights/No Materials

I just did a render 2 min ago. I'm on blender 2.9 and I was playing around with the denoise features. At the time, the lighting was working, and the materials on my object were perfectly fine. I was ...
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59 views

Why is the preview image better quality than the rendered one?

First pic is final render, second pic is what is shown on the compositor, can tell me why the one on the compositor has better quality? This is rendered in Blender 2.9
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32 views

How to Use Denoising in Texture Baking?

i want to use the built in Denoising with baking textures, is there any way to do that ?
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1answer
880 views

“Denoising” checkbox missing in Blender 2.9 [duplicate]

In Blender 2.8+, I used to check the "Denoising" checkbox in the View Layer Properties when using Cycles rendering engine but after installing Blender 2.9, I can't find this item anymore: ...