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Questions tagged [artifacts]

questions about strange visual discrepancies in renders

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1 answer
282 views

Artifacts using Zero Alpha Shader

I am trying to gradually make an object transparent. To this end I mixed in a Principled BSDF with an Alpha of zero. However, this results in the following black artifacts in the picture (shaded ...
1 vote
2 answers
3k views

Is there a way to deal with artifacts appearing in texture painting?

I noticed that if I start painting a 3d model, after a while some "white spots" artifacts start to show up, and they become more and bigger the more times I pass a brush on top of them. Here is the ...
0 votes
0 answers
20 views

Why does my render look like this, with artifacts?

On the viewport it looks ok, but when i render it, it has all this render artifacts... Does anybody have any clue why this is? Thanks!
0 votes
0 answers
29 views

Blender background plane color banding issue

I’m rendering a turntable and getting pretty nasty banding on the background plane. Does anyone know how to fix this? I found an old video on YouTube that suggested changing the color depth to 16-bit ...
0 votes
1 answer
20 views

Strange artifacts on model

I started modelling recently and the model I am working on has some rendering artifacts. I modelled the thing through extrusion and ended up with some distorted section, even if the faces are square ...
0 votes
0 answers
17 views

What are these strange rainbow artifacts along the edges and how do I get rid of them?

I'm a total beginner to blender and am trying to create a character model. All I have added is a background and a sphere, but there are these rainbow-colored pixels along the edges of the background ...
5 votes
2 answers
179 views

How to fix edges "radiating" when adding a subsurface modifier

I am creating these button models and they look ok as a base model, and they are easy to manipulate this way. But I want to add a subsurface modifier before exporting them, to make them look more ...
0 votes
0 answers
18 views

Texture artifacts - only in perspective mode

How do, I have recently started noticing some artifacts on my textures in the viewport while using Blender. I think this is since I moved to 4.1, but definitely 4.2, as that is what I am using now. I ...
0 votes
1 answer
288 views

Unusual artefacts in volume render

I am using Blender 2.82a (Cycles) to create a fuzzy ball. However I am getting this strange ring of artefacts in the rendered image, where the alpha channel shows through - I am not getting the smooth ...
1 vote
1 answer
660 views

Strange artifacts when animating rig

When rendering in Cycles these will pop up every so often on this rig. In Eevee it looks fine. I went through the vertex groups to make sure there's no doubling up or anything like that. Has anyone ...
1 vote
0 answers
17 views

Edges Not Smooth with Displacement Modifier Despite Smooth Shading and Auto Smooth

I have a texture that I use with the Displacement Modifier, applied after a Subdivision Modifier with 5 levels on a grid. There's a zoomed-in version of the lower-left corner of this texture on the ...
0 votes
1 answer
659 views

How to get rid of sharp edges\artifacts in Cycles?

So I imported a model of my sim into blender to mess around with renders and maybe try and make some CC, but (as usually the case with game extracted models) the model has these 'artifacts': How do I ...
0 votes
2 answers
1k views

Blender 3.1.2 UV-Seam will cause visual seam in baked normal map (Highpoly -> LowPoly)

A lot of threads exist because of this problems, but no answer solved the problem so far for me. My baked normal maps (Cycles) will always have visible sharp edges with artifacts wherever i "mark ...
0 votes
1 answer
11 views

Artifacts appear when using the subsurface modifier with a hole

An artifact appears when Iusing subsurf
0 votes
2 answers
430 views

Why do black artifacts appear on exported model?

Why do black artifacts appear on the faces of my model When I export it to .obj format? I use Blender 3.2.
0 votes
2 answers
369 views

What's wrong with my front face only option?

I'm new to Blender, and I'm following a tutorial. But when I'm sculpting, I have a problem with the rendering compared to the video. In the tutorial, we use the "Clay strips" brush with an ...
-1 votes
1 answer
41 views

Shade smooth artifact

I've got a strange smooth shading artifact. I don't see any triangles or messed up topology (that I can tell). I've tried adding more geometry and making sure the edges are even. Does anybody know ...
1 vote
1 answer
373 views

Weird rectangular artifacts when using Radeon ProRender

Any ideas why in viewport or rendering, I get these lighter colored artifacts on my screen? I tried disabling my GPU for render, but still happens.
0 votes
0 answers
22 views

Why does my fluid explosion sim have odd artifacts?

Does anyone know why I get this odd geometric noise on my fluid explosion simulation? It's rendered at 256 samples with noise and .05 vorticity. Let me know if anyone has any ideas!
0 votes
1 answer
319 views

Cycles render problem again

I know this issue pops up periodically. But I still haven't found a solution. The problem is on this picture. Other projects render great even with 128-64 samples. I realized that the problem is not ...
2 votes
1 answer
33 views

Why I'm getting artifacts with normals of exported mesh?

I've created mesh and exported it in unreal engine 5, where I'm getting strange artifacts like this: when in Blender it looks okay: I thought the problem could be in normals, but looks like there is ...
4 votes
1 answer
158 views

How do I get rid of the artifacts on this sphere?

I'm currently learning Blender because I need it for a university project. I have some previous C4D experience, but never really learned topology and modelling. I have the following problem: The ...
0 votes
1 answer
817 views

Solidify Modifier going in all directions

I was trying to create a different version of a stylized archway. I used a couple of bezier curves to get the basic shape then borrowed some of the shapes from the original archway. I got everything ...
1 vote
1 answer
55 views

Strange left-over vertices after using a boolean to intersect two objects

I have this simple wall that has 64x16 subdivisions and then an arched wall (created by beveling a wall of the same size but with only 8 vertices). Now I want to intersect them using a boolean so ...
1 vote
1 answer
615 views

Baking emission in Cycles makes line artifacts

I started texturing my model and I noticed that all the procedural textures I made by plugging them into Emission and backing it using "Emit" have weird lines and dots. These artifacts do ...
4 votes
1 answer
65 views

Artifacts on semi transparent object in Material view

I have modeled a simple perfume bottle with some transparency on its body. It's looking fine, but the only issue are the weird 'blocky' artifacts that appear 'only' in Material view. They do not ...
0 votes
1 answer
422 views

White box Artifact appearing in render?

I am new to blender, and while I was following this blender tutorial: https://youtu.be/y0DMMwwdBaY At the 15-minute mark, we start using the compositing tab. For some reason, using this tab causes a ...
0 votes
1 answer
52 views

Black stripe Artifacts when rendering

I am relatively new to blender and I have a wooden texture table that looks perfectly fine in viewport shading: However, the cycles rendered picture looks like this: Looks like artifacts at the ...
2 votes
2 answers
262 views

Wrinkles in shade auto smooth

I Used a Boolean modifier to make windows on a curved mesh and shaded it auto smooth now I have wrinkles in my mesh. I have no Idea how to fix this or another way to cut windows in to my mesh. Could ...
1 vote
1 answer
29 views

How do I fix the faces of a bevel looking pinched when smooth shading?

When I try to bevel the edges of a corner, the faces of the bevel end up looking pinched when I turn on smooth shading. I've tried a weighted normals modifier and shade smooth by angle but nothing ...
1 vote
0 answers
26 views

Mysterious light streaks on a simple mesh

I'm guessing this has been asked thousands of times but I haven't been able to find a helpful answer yet: I'm getting strange light striping & shadows that show up at specific angles on this ...
0 votes
0 answers
37 views

What is this fuzzy artifact?

I'm trying to understand what is causing the fuzzy white distortion in my render (see edges of arch & star streaks). I've tried various smoothing and anti-aliasing settings but no luck. I'm a ...
0 votes
0 answers
34 views

Dark artifacts appering in render when using subsurface shading on joined meshes

I have this dark artifacts on parts of the meshes when they intersect each other, the parts are just joined, not boolean together, this happens when I use subsurface effect in my shading properties of ...
1 vote
1 answer
28 views

Having problems with artifacting and odd geometry bending with rigged model

I am new to rigging so I don't know the more in depth details of what I have to do to get it to work right. Here is a video of what I have... https://youtube.com/shorts/VEwOycbygDw My first problem is ...
1 vote
2 answers
112 views

How to remove unwanted edge artifacts at borders of Cycles-rendered images?

I'm tried rendering cubic skybox with a procedural Sky Texture in Blender via Cycles and unexpectedly encountered artifacts at boundaries of rendered square images (which a skybox is then assembled in ...
2 votes
1 answer
32 views

Fix Crease Where Two Objects Meet

Goal: To get the two objects (mountain and flat plane) to have a seamless transition while still keeping them as separate objects. What I've Done: I made it so that the mountain texture fades to the ...
1 vote
1 answer
21 views

What can be a reason of dark areas on mesh?

I worked in edit and sculpt modes and clicked some key combination. After that I've got strange dark areas at mesh: What could be a reason of this areas? I haven't changed anything in shader, so the ...
0 votes
0 answers
26 views

Black Bar Artifact in Cycles Render

Attempting to render out a scene and I'm getting a strange black artifact at the top of my render, oddly it doesn't seem to effect the doors, and there is no material overlap. I've tried rendering ...
0 votes
0 answers
36 views

What's causing the shrinkwrap artifcting on my model?

I'm trying to retopologise a very messy and destructively created mesh that was non manifold. However, after giving it a shrinkwrap and subdivision modifier, I'm noticing some strange indents that ...
-1 votes
1 answer
40 views

How can I get rid of these artefacts?

I have some curvatures on my mesh and I don't know how to get rid of those. I tried deleting some faces and recreate them but I got them back:
0 votes
1 answer
18 views

Cycles issue - Edges of the mesh show on some parts of model

I have a number of rocks generated with geometry nodes, then sculpted. The issue is that the edges look split at certain parts of the model, it is almost like the wireframe shows up at some places. ...
1 vote
2 answers
3k views

Strange artefacts when using Decimate modifier

While using a decimate modifier, I get these weird shading artifacts: I have managed to narrow it down to the Decimate Modifier causing the problem. What is causing this weird shading? How can I ...
0 votes
0 answers
86 views

Overlapping Polygons Causing Render Artifacts

I want to render a model that has overlapping polygons. The viewport and Cycles render show artifacts wherever the overlaps are. Is there a way to fix that in the render settings? Viewport Render ...
1 vote
1 answer
47 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,...
0 votes
1 answer
239 views

Cycles volumes turn red and glitchy

I am trying to make some clouds for a scene. In EEVEE the clouds look just fine, but when I view them in Cycles, they have really weird red artifacting going on. You can see this in the upper left- ...
0 votes
2 answers
355 views

Artifact on my model's nose

I was following this tutorial for making a 3d avatar from scratch, and found that there was an artefact on the nose of my model. The modifiers used are the mirror modifier along the x axis and the ...
0 votes
1 answer
937 views

Shading artifacts after baking normal map

I tried baking a normal map from high poly to low poly mesh. The high poly is basically just the low poly with beveled edges and proper smoothing. I'm absolute beginner when it comes UV unwraping and ...
0 votes
0 answers
12 views

My geometry is going wild while sculpting using a brush

Like the title says, I'm sculpting using a brush and the model just creates weird artifacts. I really don't know what I'm doing wrong here.
0 votes
0 answers
14 views

Cycles render glitches

Im having issues with rendering with cycles as the left side of the blade creates some sort of glitch. Any idea what might be causing this?
0 votes
0 answers
108 views

Normal Map Baking Artifacts

I have this model, which when baking the normal map always has artifacts in the same place - on the upper ring, into which many "beams/pipes" are inserted. The mesh consists of several ...

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