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Questions tagged [noise-reduction]

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

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3 votes
1 answer
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Render white noise texture in Cycles

I am trying to render objects with random noise generated textures in Cycles. I am facing this issue: the texture is almost lost after the render I am using this material configuration: When I start ...
xWourFo's user avatar
  • 65
0 votes
1 answer
57 views

Why is my interior Animation flickering/noisy?

I rendered an animation and the frames by themselves don't look noisy, but when I put them together in a video every frame seems to be flickering and really noisy. The lights are purposefully ...
Arceus's user avatar
  • 67
1 vote
1 answer
33 views

Artifacts and flickering in renderd animation but not in rendered view

I rendered an animation and there are weird artifacts that almost look like refractions: There is also weird flickering in the hair, but I assume thats caused by the low sample rate and the low light,...
Jakob Wagner's user avatar
0 votes
0 answers
32 views

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
  • 67
1 vote
1 answer
432 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
0 votes
0 answers
14 views

Black Noise in Small Principled BSDF Materials [duplicate]

I have been obsessing over an issue I have been facing for the last week. When rendering a set of keycaps (images below), the icons have black noise in them. I have tried everything I can find in ...
Chris's user avatar
  • 1
1 vote
1 answer
427 views

Noise regions on ambient occlusion bake

I'm getting strange noise regions on baked ambient occlusion maps. I've tried to change number of light bounces, noise threshold and number of samples but nothing works. Despite the different settings,...
a0405u's user avatar
  • 31
0 votes
1 answer
115 views

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
0 votes
3 answers
892 views

Transparent textures result in extremely noisy mist pass

When rendering a mist pass in cycles in a scene that contains textures with alpha, it becomes essentially unusable due to noise. All posts and solutions I could find about this seem to be outdated and ...
Aci's user avatar
  • 97
0 votes
0 answers
99 views

Cycles alpha background, noise on edges

I am new to blender and i want to render some images with transparent background. This image is rendered with cycles and the shadows are generated on a plane with Shadow catcher. The problem is that ...
Alex Cristian R's user avatar
0 votes
0 answers
84 views

Is there a way to isolate single objects for more Cycles render samples?

I'm animating a large scene, i.e., with many objects and light sources, with Cycles and struggling to solve noise issues. It's an outdoor scene with a real world twilight HDR sky and the darkness of ...
WilburPost's user avatar
  • 1,067
0 votes
0 answers
28 views

Reduce noise in refractive caustics [duplicate]

I'm trying to smooth these puppies out. I don't need realism, just no noise. The material which light is passing through is a Principle BSDF. Using Cycles X with no reflective or refractive caustics ...
ethangale25's user avatar
0 votes
1 answer
837 views

Eevee rendering noise with MToon transparent material

Blender 3.1.2 I have a VRM model I've imported into Blender. Both in the viewfinder and rendering view the glasses of the model have distinct noise. It is not a texture issue, the texture file does ...
MegamiRissa's user avatar
0 votes
1 answer
375 views

Much more Noise in the whole scene with a Light Points?

i am currently working on a steampunk castle and have the problem that the entire picture becomes significantly noisier as soon as I put normal points of light in the lamps. I set the light points to ...
VICUBE Animation's user avatar
1 vote
0 answers
216 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
  • 341
0 votes
1 answer
33 views

Why Im getting this "rain" noise in cycles

Hey guys Im trying to render my projest but Im getting this rain nose I don't know why, any suggestion ?
Slobodan Vidovic's user avatar
1 vote
0 answers
148 views

Combining low sample renders has more noise than one large render

I am trying to create a script, that would allow me to merge multiple images, rendered with different seeds and different sample amounts into one image with a higher sample amount. The script is using ...
Hoodrobinrs's user avatar
0 votes
0 answers
38 views

Can we change Noise seed per sample in Cycles?

In cycles, I have noticed that instead of taking 1000 samples, we can take just 10 renders of 50 samples each with different noise seed and average them externally, the noise goes down A LOT. So, is ...
CoolCoder's user avatar
  • 626
0 votes
0 answers
99 views

texture baking artifacts

im having issues with baking a texture via blender. im only using a bsdf node with white and the sun as a light source. somehow it keeps coming up with these artifacts instead of being smooth with ...
Carter the artists's user avatar
0 votes
0 answers
43 views

Have strange noise in compositor in Cycles (Cycles X too)

I make render of smoke in cycles in blender 3.0. Render location in eevee and mix it in copmositor. BUT in render a have no noise and have it in copositor. How I can fix it? Files in attach - ...
Simon Laskin's user avatar
1 vote
1 answer
46 views

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
  • 11
2 votes
0 answers
197 views

Ambient occlusion causes serious noises in EEVEE

My EEVEE render looks okay with Ambient Occlusion off: But when I turn it on: The noise gets really bad: No matter how many Samples I set (it's almost as noisy in 16 samples as 1600 samples). Is ...
Lai Yu-Hsuan's user avatar
  • 1,992
3 votes
0 answers
290 views

How can I render a ball with equirectangular camera?

Firstly, I'm a first time user for Blender. I want a equirectangular image so that I can create a texture to use on a sphere object on my Unity project. I'm searching and trying for hours. Here what I ...
Halil Nebioğlu's user avatar
0 votes
0 answers
232 views

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 ...
Frederico Jesus's user avatar
0 votes
2 answers
239 views

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 ...
Aman Kumar's user avatar
0 votes
0 answers
16 views

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 ...
giulio's user avatar
  • 1
0 votes
0 answers
81 views

Scene is noisy and the noise barely changes from 750+ samples

I have created this blockout of a hobbit hole but when i try to render it it's very slow and quite noisy(denoising used) even without volumetrics. I would just crank up the samples to solve this but ...
Matěj Chalupa's user avatar
1 vote
0 answers
203 views

Weird noise-like textures on roughness textured surface? (Cycle render)

So I have this metal object that has roughness textures on it. It looks okay on the viewport. But when I render it somehow there are some noise textures on it. The noise especially is on the shaded ...
ariish44's user avatar
1 vote
1 answer
105 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 ...
Svisha's user avatar
  • 65
1 vote
2 answers
513 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 ...
cancelojao's user avatar
1 vote
0 answers
810 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 ...
jona's user avatar
  • 277
0 votes
0 answers
171 views

White Noise after Rendered Scene

When I render, white like bricks come up in my scene and start to affect the sand textures. I've researched I thought it was a noise particle from using something transparent like water but the noise ...
OGee Sama's user avatar
3 votes
2 answers
2k views

Mist pass looks noisy

I have a following problem: when I render my final image with mist pass, the mist pass itself becomes noisy, see in these images: Mist pass combined in image: Mist Pass itself: Could the problem be ...
Andris Erglis's user avatar
0 votes
1 answer
878 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 ...
new user's user avatar
0 votes
0 answers
28 views

How to make the glittery effect cleaner on cycles render? [duplicate]

I´m finishing this study but I think the gliterry party is a little off, kinda blurry. Does anyone have any tip on how to improve it this final render? Thanks a lot! I mean this part (the upload here ...
Samantha Pereira's user avatar
4 votes
1 answer
749 views

Strange Glass Reflectivity in Wine Bottle Scene

I am testing out some materials and put together a simple wine scene from some downloaded assets. This is the render: Anyway, there are parts of the render that look pretty unnatural. I've pointed ...
fmotion1's user avatar
  • 1,431
0 votes
2 answers
1k 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.
Adelina Pintilie's user avatar
0 votes
0 answers
220 views

Very noisy indoor scene mystery

I'm working on a indoor scene in Cycles Blender 2.90 with the Nishita sky as light source coming trough the windows. For the glass material I used Blender Guru's glass hack, but I'm sure the glass isn'...
Rock's user avatar
  • 153
0 votes
1 answer
58 views

I connected colour to composite node directely, and there is a noise

I've found a noise in my image, though (ideally) it should be perfectly clean. So I made an experiment. (Blender version 2.90.1) New file, I set the render size 40 x 40 and changed "View ...
sscnl's user avatar
  • 1
0 votes
0 answers
33 views

How to get rid of this noise?

im making a 3D animation of two glass hands cracking, but as Im getting to the point of sorting the lighting for the scene my glass material is giving off a large rectangle of noise. Im using evee ...
Charlie Hayward's user avatar
0 votes
1 answer
3k views

Cycles noise no matter what I do, and the denoiser makes it look cloudy

I realise so many people have asked this question so many times, but I just can't see what I'm doing wrong here. I'm on Blender 2.83.2. I have a simple scene with a room and some objects, some with ...
irwazr's user avatar
  • 35
2 votes
1 answer
183 views

how to reduce clump of strange noise in render?

I have a strange clump of pixels on a model added into some video. am experimenting with animated depth of field to get the model to defocus when the camera does, the pixels stay in focus and seem to ...
Arthur's user avatar
  • 73
2 votes
0 answers
89 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 ...
Joshua Diem's user avatar
0 votes
0 answers
31 views

How do i remove these splotches from my rendered image?

I am a beginner that just did the doughnut tutorial
Beginner's user avatar
0 votes
0 answers
433 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=...
Zakenmaru's user avatar
0 votes
0 answers
271 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
Harshan Alweera's user avatar
-1 votes
1 answer
2k 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?
Stanislav Chmulev's user avatar
1 vote
1 answer
67 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 ...
Thomas Bouasli's user avatar
1 vote
0 answers
55 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 ...
Thomas Bouasli's user avatar
3 votes
1 answer
754 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 ...
Marten's user avatar
  • 149