Questions tagged [noise-reduction]

Questions considering the process of reduction of noise in final renders and/or texture baking.

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How to Use D-Noise in the Compositor?

Basically the question. Usually, I let Blender save some additional render passes (mostly ID masks) together with my main rendering for later, in-depth compositing. In the compositor, I pick the image,...
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1answer
31 views

Fireflies plague my render! [duplicate]

I'm trying to render out an animation, but I keep running into a lot of fireflies. I would like to try to avoid the denoise addon since Im rendering an animation, but at the very least I would like to ...
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RGBa noise effect based on/ influenced by pixel values

I'm looking for a way to exactly or closely reproduce the Noise effect seen here in Paint.net The noise seems to be influenced by the image data itself, to a tunable extent. There are no tags for ...
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17 views

How to fix noisy out-of-focus specular highlights

Any ideas on how to fix noisy out-of-focus specular highlights. See attached image to get a better idea of what I'm trying to fix. All my render setting are set up for quality over speed, but clearly ...
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1answer
132 views

Blender 2.8 eevee rendering noise

I am seeing a lot of noise when using eevee to render. Attached is a mesh where you will see the noise is very heavy at the bottom of the iconosphere. This noise is only seen with metallic materials. ...
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1answer
24 views

Different render results with cycles in files created pre-2.8 and post-2.8 - extra noise in 2.8

I use a node group (see linked blend files) along with extremely limited numbers of bounces & lighting to achieve a certain non-photorealistic effect in cycles. This effect has previously resulted ...
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1answer
19 views

Weird export noise after appending object

I have a planet created in one blender file [A], which I am appending to another blender file [B]. The planet in file A renders beautifuly, while in file B, the render is noisy. I have checked and ...
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1answer
62 views

Shadows in render are noisy

Edit: This post is not a duplicate to this question as I am using Blender Render, and not Cycles Render. Blender Render and Cycles seem to have very different options and work very differently. The ...
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1answer
322 views

Fireflies. Where are the options for clamping in 2.8?

I moved on to Blender 2.8, and I'm trying to find a way to remove the fireflies in my work. Obviously, you have to use the clamping feature to reduce the fireflies, but I just couldn't seem to find it ...
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2answers
68 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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1answer
67 views

Can Cycles take more samples at object borders?

Can Cycles be coaxed to cast more rays in pixels containing a large gradient/discontinuity in depth (or high contrast in brightness)? My scene is fairly simple (effectively an image mapped to a ...
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43 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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hdri noise 2.79 vs 2.80

I try to find a way to minimize the noise i get in a scene when using an hdri i created with terragen based on the following. (https://planetside.co.uk/forums/index.php/topic,23976.msg242129.html#...
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223 views

Glass causes noise?

I've been fighting with noise in my render. For draft renders I clamp the AO bounces in simplify, which clobbers the noise, but also the shadows. And I don't like that. So for a final render I want to ...
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54 views

Noise trap - Interior Scene with no glass materials [duplicate]

I want to get rid of the noise but I can't for the sake of god find out what is causing it. I am using an HDRI. I am not using glass materials. I blocked all the HDRI light with objects apart from 2 ...
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Why is this glass getting blown out?

Ok I have a lot of glass in my scene but these shards I have on the floor, regardless of denoising settings or otherwise, that do not appear clear but rather get blown out into white. Denoise ...
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1answer
283 views

Black dots in render with many lamps

Hi fellas any help with the black dots on the render below? Found some info around the web but nothing helped me out (it was an old stuff in fact). Really dunno what could causing this...
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1answer
45 views

I have noise and need help [duplicate]

Ok I'm so tired of the cycles noise problem on interior scene. Plese can you help me? I'm in a rush. This is my scene and a process of a 600 samples render (don't need to finish it for you to see how ...
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180 views

Cycles — Why are my renders so blurry?

My renders are coming out extremely blurry and weird looking, im still pretty new to blender and im not sure how to fix this issue, and whenever I put the samples to higher numbers like 5000 the ...
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1answer
149 views

Quick Smoke Causing Grainy Renders

I was messing around a bit with Blender 2.79, and what i found was when i was doing smoke simulations, the renders turned out really grainy with a lot of noise (kind of like scattered pixels around ...
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27 views

How can I remove these little artifacts from my rendered image? [duplicate]

I've read that too many reflections can cause these artifacts, but I couldn't find a solution to remove them. My sampling was set to 512.
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1answer
1k 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
317 views

How to render a night scene [duplicate]

I really need some help regarding rendering a night scene. When i tick the denoising option. My render become ugly where there is a black dirt on the image. As in the image below. And if i untick ...
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83 views

How to fix noise in a face mesh

I've created a head surface out of an MRI scan. Due to noises in the scan, some parts of the surface are noisy, mostly around the chin: Any idea how I can fix that? I'm trying different smoothing ...
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3answers
686 views

Why is glass material increasing noise, and what to do about it?

I have a quite simple rendering in Cycles, containing some droplets with a standard glass material – only glass node, connected to surface of material node. The problem is, the glass increases the ...
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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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1answer
949 views

Get rid of /reduce Noise in Cycles Render [duplicate]

Im new to 3D object creation(2 weeks at most) and I was wondering if there is a way to reduce if not get rid of the noise when rendering using the cycles render. thank you for the answers.
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2answers
637 views

Interior scene has a lot of noise, even with optimized settings [duplicate]

I can't figure out why my scene is still so noise after I optimized the scene / lighting settings. I have the following settings: 1. Sampling: I increased the Sample size to 2056 I'm clamping ...
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1answer
93 views

How do i remove noise? [duplicate]

I tried to make this scene from blender guro tutorial, but i got problem in my lamp which is to noisy. Is there a solution without increasing my samples render? Im beginner for this stuff.
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0answers
75 views

My shadows using “blender render” are noisy?

Whenever I make a render in Blender, all my shadows are messed up. They aren't just black, they're black but have a lot of noise. I don't know how to explain it better, so I'll post a render where you ...
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1answer
140 views

How to reduce noise [duplicate]

enter link description here after enabling depth of field i faced with problem of noise. Metal objets especially looks very bad. How to fix it?
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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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72 views

Different number of samples for different parts of a render

Is there any way to use different number of samples in different parts of the scene? I'd like to have higher number of samples only where the glass material is but lower on the rest because I dont ...
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2answers
3k 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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1answer
153 views

Noisy scene even with 3K pass

I know many many people have asked this before, but i really can't understand what is wrong... I've tried everything: raised passes up to 3k, added denoising, indirect clamping, multi sample ...
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0answers
239 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
857 views

Blender Cycle too much noise [duplicate]

I've spent all my morning trying to get rid of all fireflies in the final render, but the result still shows too much noise. How can I fix it (without changing materials)? Thank you.
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1answer
266 views

Getting low resolution render images [duplicate]

When i am rendering my scene in 1920×1080 at 100℅, and with a sample value of 500, I am getting a low qulality image which got rendered in just 8 seconds. How can I fix this!
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1answer
260 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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1answer
371 views

How do I set the Seed value to 0 under the Sampling tab?

The seed value keeps resetting to the default value after I set it to 0, once I render a frame. I want to eliminate all noise from the final rendered image.
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28 views

Why is there still so much noise? [duplicate]

I added a portal to the the window and put the size to 9.353, and also rendered the samples at 2000 and there is still noise. do I need to portals for this?
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2answers
607 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
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
442 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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68 views

I always get some noise in my images made with cycles

There are also another problems with this image, but the noise I get in all my renders, I don't know how to solve this, could you help me. My renders also takes too long to render, even if it is a ...
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2answers
2k views

How to reduce the glossy noise? [duplicate]

I am using a lamp with shader glossy, without the lamp the scene is good, but when I bring the lamp with the shader increases the amount of noise. what do I do?
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2answers
149 views

Is it possible to have more fireflies at the same time I use more samples?

I am referring to the white dots that appear in glossy objects. I moved a little the metal carpentry for the second image, and I got less noise in the horizontal ones which are on the top, but for ...
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1answer
449 views

too much light causes noise [duplicate]

Usually happens the opposite.. but today I have too much noise caused by too much light! (at least, I suppose It is because of that...) I have also Volume scatter and absorption applied to a ...
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39 views

How to clean white spots on an image? [duplicate]

I was watching a tutorial on making a cup, (link in comment) and towards the end, he says make Clamp 0.98 in order to remove white spots on the image. I added 0.99 to Clamp Direct (2.78c) and I still ...
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1answer
2k views

How to reduce noise in really dark scene

So I've been working on this one scene for a while now and I just can't get the look that I want. It is supposed to be a bar and therefore pretty dark. For some reason, nothing I do seems to reduce ...