Questions tagged [noise-reduction]

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

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21 views

Excess noise in cycles render and odd denoising results

I'm trying to do some renders of a dark room, but there's quite a bit of noise despite me setting it to 128 samples. When the denoiser kicks in, it fixes the noise but makes the scene look completely ...
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23 views

How do i remove these splotches from my rendered image?

I am a beginner that just did the doughnut tutorial
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23 views

Unexpected noise/pixels of render preview in Viewport Shading

I'm really new to Blender and started watching a playlist from Youtuber Blender Guru, the one about making a donut. Link is provided below to the specific video: https://www.youtube.com/watch?v=...
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19 views

Object shadows having lines doubled

The shadows of the objects seems to be doubling up and even when moving the object around it flickers. Eevee Cycles
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1answer
54 views

Noise in rendered image even with 1000 samples [duplicate]

Rendered with 1000 samples in cycles. What can i try to get rid of it without losing the quality of the image?
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11 views

Some form of noise on my sculpture when animating the camera moving around it

New to sculpting, made some kind of monster with a bunch of geometry, in eevee it looks mostly fine. But in cycles it has the lighting I prefer. Only problem is when animating a camera moving around ...
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1answer
21 views

Extreme noise with portals indoors

my renders always turn out to have a lot of noise when indoors, what should i change? i know the samples are low, but no matter how high i set them, there is a lot of noise. Should i use the clamping ...
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0answers
48 views

why my indoor scene is so noisy? [duplicate]

yeah i know that the sample rate is low, i increased it to 300 and it still was noisy, i think it has something to do with the indirect light, right? I dont know if i need to give more info, im ...
2
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1answer
56 views

Combining denoise node with other nodes in compositor?

I'm rendering a thing in cycles and I think I put the Intel denoise node in the wrong spot, because it won't mix with the rest of my nodes in the composite. I've been using Blender for a couple of ...
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29 views

Weird noise in background

I've encountered this strange noise in viewport AND render, hopefuly it's visible in the image. Basically this dark grey / black noise that doesn't change over time (not ray-tracing it seems), it's ...
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0answers
23 views

Final render is too noisy [duplicate]

I've started tinkering with Blender a few days ago and finally produced my own rendered image. The only problem is that the final render is way too noisy to use. It took around 1-2 hours to complete ...
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34 views

Eevee is too noisy / how to reduce at same samples?

People have probably asked this already but I have not found the answer. I have a reflective title with reflective plane, and the noise created in eevee is very high, even if I increase the samples ...
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2answers
365 views

White Noise in Blender Z Pass with alpha value in Mix Shader

I am trying to get the depth value using z pass from my scene which is a simple head model, but while rendering there is white salt and pepper noise in the hair and eyelash. I have saved in both png ...
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1answer
105 views

Luxcore noisy render

When I try to render something with Luxcore it get really noisy. I read that Luxcore was working as a camera so if the image is too dark you need to add more light in the scene or it gets noisy. I ...
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1answer
526 views

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
56 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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23 views

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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0answers
31 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
1k 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
46 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
64 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
308 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
3k 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
286 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
123 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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0answers
491 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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0answers
88 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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0answers
91 views

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
910 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
46 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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0answers
209 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
235 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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0answers
28 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
2k 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.
2
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1answer
581 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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0answers
140 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 ...
2
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3answers
1k 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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0answers
45 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
2k 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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1answer
1k 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
203 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
107 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
158 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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0answers
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
95 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
5k 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 ...
0
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1answer
193 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
294 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
2k 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
473 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!