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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2answers
53 views

High noise with emission materials

I'm doing a render where the lights mostly come from emission materials applied to objects in the scene using cycles, I've tried using ridiculously high samples but the noise is still very obvious. Is ...
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Why does the render look different than the preview? I get this dirt looking thing. Is this caused when blender denoises the render?

Why does my render look different than my preview? I get this dirt looking thing. Is this caused when blender denoises the render? Render picture Preview picture see the dirt on the black parts?
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Problem with fireflies and denoise on surfaces

Lately I have this problem with my renders when after rendering I get weird light effects (fiereflies) especially on walls that are just plain coloured. Like in this render ( It's closed room with 5 ...
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1answer
43 views

Is there a way to make render preview less fuzzy

I know how to make my final render without noise or grain. But my preview render is always grainy/noisy. Is there a way to fix this?
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36 views

Help with lines/noise in Evee

i'm getting noise in my evee renders, i'm not very familar with evee so I have no idea how to fix it, here's a screenshot to show what the noise i'm getting looks like here: The red mark is caused by ...
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1answer
178 views

Blender 2.8 Cycles Denoiser produces banding [closed]

This is the image with denoiser: This is the image without the denoiser Turning on Dither made the image with more noise, like I didn't use the denoiser at all.
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22 views

How do I fix the Denoiser's cloudy render glitch? [duplicate]

I have another problem. I've been trying to create a render of my IES light with the Denoiser,but when I do,a weird cloud/noise effect appears in the render. Could someone please help me?
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1answer
55 views

How to use “Denoise” on a secondary rendered image

I can achieve that by rendering the image 2 times, but only using denoise on the first image. But that would double my render time, so i can't do that. I want to use denoise, but on some places of ...
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1answer
423 views

How to utilize the denoise passes to build a denoise node network in the compositor

I've built custom denoising node networks before in houdini's compositor, using raw passes combined with noise reduction nodes, but I'm not sure how to utilize the various blender denoiser passes to ...
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0answers
725 views

Blender 2.8 beta Denoise bug?

I have this problem when I am rendering in Cycles, the render takes the time to process the denoise tiles, however, I have unchecked the denoising filter in view layer tab. I also turned off any ...
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1answer
212 views

Looking for help on how to use the new denoising data

Recently in Blender 2.8 and 2.79 Master a new set of render passes have been made available to the user, "Denoising Data". I have a few questions: How would someone use this information? and is it ...
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1answer
119 views

How you denoise renderered images in Blender?

I am wanting to use Blender as a denoiser as well as a renderer, but I can't find how to bring an image in and denoise it in the compositor. I have tried using the despeckle node but I still can't ...
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1answer
149 views

Is there a way to make denoising work in the Cycles viewport?

I saw this in other renderers, such as the Radeon ProRender or V-Ray and was wondering if there's an Add-on or Build for Blender to work around the limitations of Cycles' Denoiser.
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1answer
302 views

How do I make this render look better? [duplicate]

I cant manage to get the right render settings for this image. if you look at the render closely you cant see the poor quality. The denoiser in blender makes the image look smudged. Here's the ...
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1answer
809 views

Denoising in viewport?

Is it possible to enable the new (2.79b) denoising feature in the viewport? It works great for me in renders, but I can't find a way to apply it in the viewport.
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1answer
36 views

Use denoiser on certain frames of animation

Denoiser wastes quite a time on empty renderlayer (about 2 mins for 1080p), but its checkbox can't be keyframed and even LMB's Copy data path is greyed out (so, no scripting I guess). Animating ...
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42 views

Noisy Animation

I'm new to Blender. I just animated a waterwheel but the water seems very noisy and grainy. Can anyone help me to sort this out ? I rendered this with Cycle's rendering engine. I don't have a GPU in ...
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33 views

Any way I can remove these fireflies/noise? [duplicate]

I have made a model of an apartment and I am trying to get rendered images from the individual rooms and in the end in orthographic view but no matter what I do there is too much fireflies or noise. ...
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0answers
25 views

Rendering - Noise issue [duplicate]

This is my first post in Blender. I'm currently working on this sugarcane's project, But The rendering result cause a lot of noise or flicking issues. can any one give me a advise? I got turn on ...
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1k views

Best settings for denoising in Cycles

I am working on a project and I am using the Cycles render engine. Denoising usually seems like a good option but the image does become a little blurry when I use denoising with the default settings. ...
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1answer
258 views

Denoising Not Showing In Blender Cycles

Ive gotten blend 2.79b and I heard about the denoising feature. I went into the render layers tab but it's no were to be found. I'm in cycles render.
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50 views

Denoiser messing up final render [duplicate]

I have a problem with the denoiser, I need it but it's messing up final render. Everything seems right. Then when denosier comen in. Presets are default and this is the first time this happens, ...
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1answer
371 views

Denoise is not showing in the Scene tab

I am using version 2.79, yet the Denoise option is not showing in the Render Layer Scene Tab.
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2answers
2k views

Noise on glass in cycles

I cannot get rid of noise/fireflies in my glass shattering scene, rendering with cycles. I've tried all of the following suggestions: Increasing Samples (up to 4000, still tons of noise) Filter ...
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0answers
223 views

Cant remove fireflies around emission object (volume scatter)

Ive tried everything turning off caustics, ive turned on simplify, denoising is on, multiple importance is on, increased transparency, filter glossy all the way up to 10 (although there isnt glossy ...
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1answer
294 views

Denoiser slows rendering too much

Suzanne on transparent background with 1 sample and denoiser is rendering slower than at 100 samples and no denoiser. PC specs: Ryzen7 1700 (stock), GTX 1050ti, Win10 64bit v.2.79a, CPU+GPU, 1980p, ...
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2answers
413 views

Denoising not working with GPU

I have this problem, when I try to enable denoising when rendering with my GPU only I get a completely black rendering. When I render with CPU+GPU I get black tiles. I´m running Blender on an iMac ...
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0answers
112 views

Pixelated light in final render [duplicate]

I've rendered my final scene but the emitting light from the bulb shows a weird pixelated shade at the base and on the bulb... however it seems like its clear in the viewport render. Any ideas? Is it ...
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1answer
81 views

How to take away shadows where I don't want them?

i only want to have the shadow of the rope showing, but as you can see somehow shadows are being cast onto the layers which doesn't look good. I'm pretty new to blender and tried to mess with the lamp ...
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1answer
250 views

Why do I have 'glitched' areas in my render after enabling denoising? [duplicate]

I am a newbie to blender and i found a 'Denoiser' option and decided to use it. I found out its function but it seems to create these 'glitched' areas in one of my renders. What are they and how do i ...
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0answers
699 views

Denoising is giving my strange artifacts [duplicate]

I have this material, that is a subsurface and because some reason when the denoise is applied it gives my really strange artifacts only in the red parts(the oxidized metal is other object).
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1answer
760 views

Weird noise when using denoise [duplicate]

i had these weird noise on my render i had changed render settings even every object material, and it's not solved Maybe anyone can help?
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3answers
14k views

How to properly denoise renderings?

Since the Denoise feature was added to Blender I only use the default setting with it and it really does the work. But sometimes the denoise is noticable on some of my renders. How can I overcome the ...
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2answers
566 views

Shadow-catcher stays noisy even with Denoising - also very dark

I am facing some issues with the shadow-catcher and denoiser in Blender 2.79. Denoising doesn't seem to have any effect on shadow catcher shadow. If I turn off shadow catcher on ground plane the ...
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1answer
7k views

How do I use the cycles Denoiser?

For quite a while, I have been using realtime GLSL shading for most of my projects. I decided to re-vist cycles after hearing about how awesome the new denoiser is. What does the denoiser actually do, ...
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1answer
371 views

Where is the denoiser?

Can someone tell me where this denoiser is? I know it's in the renderlayetab, but i can't find it i can only find view Thanks
3
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1answer
1k views

Partially high noise using glass material [duplicate]

I created a simple bottle and applied a glass material using the new principled shader. When it comes to rendering the surface of the bottle turns out incredibly noisy, except the part on the front ...
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1answer
1k views

Problems with denoising in rendering

I'm starting to take my first steps in Blender. I recently did the BlenderGuru's light bulbs tutorial. I have problems with rendering. The two images attached were rendered using Cycles (Blender 2.79),...
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1answer
402 views

How do I get denoising to work for all OpenEXR passes?

With the new Denoiser function, we're finally able to drastically reduce the samples in our scene without having to worry about the noise to much. I'm rendering my scene with less samples now (500 ...
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0answers
449 views

Is there any technical reason why the denoiser isn't a compositing node?

I enjoy having the option to denoise renders in Blender 2.79. However, it seems like it would be much more intuitive if there was a denoising node in the compositor for a number of reasons. For ...
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1answer
257 views

Use cycles's denoiser on multi-layer EXRs

The built-in denoiser that comes with Cycles in Blender 2.79 is awesome. Sadly, it's come too late to use in a current project... However, I have multi-layer EXRs containing all the render layers from ...
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0answers
296 views

Smeared dots with Denoise 2.79

I'm new to this world. I was rendering a test scene, to see differences of using the Denoise feature. Anyone know why the Denoise version (bottom image) has these weird smeared dots in them?
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1answer
651 views

denoise a rendered image

Is it possible to use the denoiser of blender on an already rendered image, considering it will be rendered using blender ? (the reason being I'd like to use the resumable render via blender's command-...
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0answers
350 views

Artifacts using denoise

I did this tutorial, and when I render there is an artifact like in the image below. I'm using the last macOS with an AMD 560, and if I don't include denoising everything is fine. Can someone tell me ...
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1answer
513 views

How to have Denoiser ignore certain objects?

I have a scene with some objects that have image textures. Denoising the entire scene makes the image textures on certain objects to look less sharp. How do I get Blender to denoise an entire scene ...
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1answer
1k views

Denoise is missing in 2.79

I just downloaded the official release of 2.79, and I'm missing the Denoise feature in my Render properties. Is there some step I'm missing in order to activate it?
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2answers
932 views

Why does Denoising take up so much memory?

I tried to render my scene with the new 2.79 Denoiser. During the Rendering Process everything was fine, my memory peak was about 1000M but as soon as the Denoising started it suddenly shot up to ~...
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1answer
465 views

Noise Texture Glitch when using denoise

Hey,everyone. I created a PBR FNaF plastic material and when I render it with low samples and use the Denoising feature,it blurs the Noise Texture and makes it really hard to see. It's supposed to ...
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1answer
972 views

What are the denoising passes useful for in 2.79 experimental feature set?

In 2.79 when experimental feature set is activated, there are some new passes available to the compositor if Denoising is enabled. The new passes that are there after rendering the denoising pass ...
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2answers
6k views

Denoising option grayed out

I would like to use new denoising feature for cycles in blender. I downloaded latest build for blender (blender-2.78-81d7ff8-win64). When I open my project the ...