Questions tagged [artifacts]

questions about strange visual discrepancies in renders

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Intersection of procedural road cause UV artifacts

I am working on a road generator that uses a curve to create a path and a spline parameter to generate UV. However, I have a problem with handling intersections. There appears noticeable artifacts. ...
Chirva Danylo's user avatar
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1 answer
28 views

Artifacts appearing after subdividing

After subdividing my model, artifacts are appearing in what should be sharp corners. Tried using supporting loops, marking sharp and bevel modifiers, but the artifacts remain. This seems to be an ...
Michael Peiffer's user avatar
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28 views

Tangent Normal Bake artifacts

I am expecting a solid color bake at (0.5,0.5,1) but I am getting a bake as if it is the difference of the split normals and the original. Does anyone know the cause to avoid the streak artifacts on ...
Zak Nelson's user avatar
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0 answers
53 views

Fluid Simulation Low Quality When Dropping on Object

The gold fluid when drops on the object creates meshes (or weird bumps) at point of contact. Even when I bump up the resolution to 700 the edges of the fluid are still not completely smooth. Smoothing ...
Fatima Kayani's user avatar
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0 answers
36 views

weird artifacts in shadows

I started to get really weird artifacts popping in my scene, i checked a bit everything i thought of but it doesn t seem to fix the issue. Do you guys have an ideas about that kind of stuff? thanks
Florent Lebrun's user avatar
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1 answer
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How do I get rid of these weird clumps in sculpts?

Whenever I'm sculpting I notice these clumps of verts mostly on edges sharp or smooth. What do I do? (Also smoothing doesn't help)
yua's user avatar
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2 votes
1 answer
41 views

Striped artifacts on object when applying metalness-map to shader-node

i hope you can help me with this. So i have the problem that my model gets striped artifacts when applying a metalness map I baked out of Substance Designer in the shader node, or even when no ...
Manuel Gerhart's user avatar
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56 views

filtering (moire / banding(?)) problem when downsizing video

During video editing, I noticed this issue when downsampling 4K video to HD. I tried different filtering methods, but the problem remains. Is there any setting or workaround to get rid of it? thx
shq's user avatar
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2 votes
1 answer
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Line Appearing in Mesh after resizing

I'm a Blender beginner and I'm wondering why a line appears in my mesh after resizing the shown ring of vertices. I shrunk it a little. Before there was no line. My goal is to add more curvature to ...
1aoxomoxoa1's user avatar
0 votes
1 answer
30 views

Lighting artifacts on plane in Eevee

I have a plane with an image projected on it: But in the rendering and viewport, there are these stroboscopic lines that are especially noticeable in animations: I tried playing around with the ...
Eugene D.'s user avatar
2 votes
2 answers
40 views

why does my obj have differnt shades of grey on faces in object view

Why does my object have different shades of grey on faces in Object Mode? It also looks and glitches when I export it to Roblox studio, and the different shades are still there even with a material or ...
Kiko's user avatar
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1 answer
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How i can remove these artifacts in blender?

Hey blender community, i creating a emboss logo. Unfortunately after i used the modifier solidify i got some artifacts. Do you know how to remove these artifacts? Thank you so much in advance for any ...
ChangeNAL's user avatar
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18 views

Flat Areas Bake with Blocky Colour Chunks

I don't understand why Blender can't bake a flat area without making random blocks on it. I know it did so before. This is Blender 2.93, Cycles render: Red: the top of the base Blue: the cover of the ...
blr's user avatar
  • 77
1 vote
1 answer
40 views

How do I fix artifacts caused by sculpting with dyntopo?

When I sculpt using dyntopo, it sometimes causes edges to overlap each other, causing artifacts to appear, which are exaggerated when I turn on shade smooth. Is there any way to fix this? If not, how ...
sairaaj m.'s user avatar
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0 answers
26 views

Smoke domain glitches Blender

Why does this happen? This is from an old render - sometimes there’s no weird glitching, but on other projects, the moment I press render animation, I get weird frames where the smoke domain just ...
Chris Alldridge's user avatar
1 vote
4 answers
60 views

Wave effect with pentagon shapes: Solidify Modifier does not work as desired

I'm working on a project to create a wave-like effect with pentagon shapes. I am not sure I am doing this the most efficient way, but it almost works. Except for the Solidify Modifier that does not ...
MarcusMaximus's user avatar
2 votes
1 answer
63 views

Weird shading artifact caused by a non-planar N-Gon

How to fix this weird gray area on my object? What I meant by weird gray area is the slightly darker gray triangle above the curved edges. This is a shading artifact caused by a non-planar N-Gon.
Terrible Beef's user avatar
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0 answers
31 views

Artifacts when using Data Transfer modifier to fix bad shading on cylinder

I used the Data Transfer modifier to fix the bad shading on the cylinder. It has a complex geometry due to these small details. As a result I got such artifacts. I can't understand why. Any ideas?
lemapegas's user avatar
2 votes
1 answer
37 views

Weird shading when adding inset to smoothed beveled object

I'm modeling this truck and when I try to inset to make the side windows there is this weird shading/square in the size of the inset and the edges stay the same when trying to extrude too.
Máté Szlovicsák's user avatar
0 votes
1 answer
69 views

Cycles render artifacts that looks like strings and web

does anyone know how to get rid of these artifacts? They appear on only some of the frames and I have tested them with different samples, lighting, and shader.
NAO WAO's user avatar
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1 vote
1 answer
39 views

Boolean hole gets artifacts after boolean modifier is applied and I extrude the hole

1. Cut a hole in this part, right here. Thats why I added the highlightet lines. 2. Added a Cylinder, smooth shaded, and auto smooth. 3. First problem arrives. If the cylinder only intersects the ...
patrick823's user avatar
0 votes
1 answer
44 views

What is causing this bad shading on this triangulated mesh?

I have this beautiful Lamborghini Urraco model but unfortunately I can't seem to fix this bad shading on this triangulated door mesh, it's very hard to see in Blender but it's quite eye-staggering ...
TheNuvolari's user avatar
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0 answers
35 views

eevee rendering problem weird shadows on surface / artifacts / looks hollow

Heyo, I am getting these weird shadows on the surface when rendering with eevee, but it looks fine with cycles. I already turned on soft shadows and increased cube & cascade size, that didnt help (...
max_max_max's user avatar
0 votes
0 answers
24 views

Artifacts on Viewport (Waveform/Vectorscope)

Any ideas on why am I getting all kinds of artifacts on the viewport, when selecting waveform or vectorscope? If I resize the viewport window artifacts change their look and nature, looking more or ...
Domingo's user avatar
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0 answers
14 views

Artifacts in all meshes, even when creating a new project and adding a basic cube [duplicate]

so Ihave that problem that all my meshes are broken so I have artifacts everywhere, especially around edges. You can see that all face orientations are messed up and recalcualting outsides doesn`t ...
xTheFreeDom's user avatar
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0 answers
9 views

Weird DOF artifacts in Cycles

Is there documentation somewhere on how exactly Cycles renders images with DOF? I assumed it was using one of these two options: It represents the camera as a zero-sized point in space. It spreads ...
relatively_random's user avatar
2 votes
1 answer
31 views

Strange wavy X shaped render artifacts

I'm getting an annoying wavy effect on renders in a low poly cycles file. Whats frustrating is that I've rendered several files now with all the same settings without this artifact. The strange thing ...
ajaxholyspearman's user avatar
1 vote
1 answer
39 views

What is causing these dents on the model/is it fixable?

I downloaded a free to use car model and I noticed some parts have these artifacts: I applied scale, recalculated normals, tried with shade flat/smooth/auto smooth but I can't seem to fix them. Is ...
TheNuvolari's user avatar
0 votes
0 answers
14 views

Artifacts eevee viewport, cycles is fine

I can't figure out why I get artifacts in the viewport with material and Eevee render views. Cycles is fine — the same issue across Blender versions 3.3.7, 3.5, and 3.5.1. I have an i9 and 5700xt on ...
robotico's user avatar
1 vote
1 answer
23 views

Weird ridges/wrinkles along iPhone model

I'm new to Blender/3D design as a whole and I am getting some weird ridges in my models. I believe this happened when I beveled it. Any ideas as to what I can do smooth this out? File: https://www....
CJ McNeill's user avatar
1 vote
1 answer
29 views

How can I solve this artifact (or bad shading) caused by this tri-gon?

This might be a stupid question as there's a chance that without the file it's not possible to figure out how to solve this, but: I am modeling a Daihatsu Midget and I can't figure out how to replace ...
TheNuvolari's user avatar
0 votes
0 answers
36 views

Curves creating artifacts?

My mesh is issue free when laid flat but when a curve modifier is applied, it gains these artifacts. They do not show up as an edge or at all in edit mode, only in object mode. It's an issue because I ...
schutta's user avatar
0 votes
0 answers
31 views

How can I fix these artifacts that appear when I set indirect only to my emissive smoke?

TL;DR: Artifacts appear when smoke with emission set to indirect only. I have this scene which contains a smoke with emission. When I render the scene with indirect only for the smoke these weird ...
Demondz's user avatar
0 votes
0 answers
25 views

Spontaneous deformation of vertices when changing modes

I remove this spontanous vertex deformation in sculpt mode, but it keeps returning when I switch to other modes and then return back to sculpt mode. This problem began spontaniously I didnt change ...
Pierre Rambal-Cochet's user avatar
0 votes
0 answers
19 views

Glitches on curves when importing svg

I have a curve with the following modifiers added: Mirror Solidify Subdivision And I keep getting these glitches. If I remove the subdivision modifier then the glitches disappear. I sometimes get ...
user303096's user avatar
0 votes
1 answer
65 views

Cycles/Optix: Flickering horizontal bands in rendered video?

I rendered this basic scene with glass BSDF object, plain texture into Principled BSDF on floor, no skybox, sun light at 9 strength, non-moving camera. On rendered video, you can see that strange ...
FranzScratch's user avatar
0 votes
0 answers
30 views

Some triangles in imported PLY with Color Attribute appearing dark

I'm new to Blender, and I was trying to render a model from the game Stormworks, a .ply file. Having imported it, and getting stuck, given the learning curve, I consulted this guide, however, the ...
jan pi sona mute's user avatar
0 votes
0 answers
73 views

Strange artifacts when using Volume Scatter + Volume Absorption

I always get these streaks (on cork and left side of this render too) when using volume scatter with volume absorption, they start happening during the render process and it's glowing because I have a ...
Raoul L'artiste's user avatar
0 votes
0 answers
26 views

Render height maps in blender without outline on border

I am rendering a plane at 2048x2048. using 16 bit depth, Camera is pointed straight down in orthographic mode, if I zoom in, there is a 1px wide border long by render. This seems to be true for Cycles,...
Zak Nelson's user avatar
0 votes
0 answers
19 views

How to manage selfreflecting light in object

I get these weird miscoloured rings in my object from it reflecting on itself. I tried using the "is reflection ray" but am not sure if there is a way to turn off only ray reflecting on the ...
Gus_Ex_Machina's user avatar
0 votes
0 answers
169 views

Small bits of flickering artifacts inside and behind VDB volumes in cycles

I have rendered this video using cycles in blender 3.3.1. The scene contains two VDB volumes (red boxes in the video) that are volume-shaded using a simple emission shader that shows the VDB data ...
hank's user avatar
  • 1
1 vote
1 answer
161 views

Shading artifacts in a low poly mesh

Can somebody describe the technology for getting rid of artifacts like these. I moved around some vertices and added/removed some edges, reset and smoothed normals, added weighted normal modifier, ...
Nebehr Gudahtt's user avatar
0 votes
0 answers
35 views

How do I fix this weird shading problem?

This problem is present on about half of the entire model, on seemingly random faces. The problem only appears when viewing the material, not in normal solid shading. The problem appears in both EEVEE ...
DraugR's user avatar
  • 153
0 votes
0 answers
23 views

Strange, blocky shadows that glitch with camera movement in eevee scene

I have some strange, blocky shadows in my renders that glitch out whenever the camera or the objects move. When I exit the camera view into 3d viewport it looks fine, but the blocky shadows show up ...
Thomas's user avatar
  • 1
1 vote
1 answer
125 views

Why am I getting these artifacts? (...& how can I get rid of them?)

As you can see, this figure has artifacts around the shoulders, buttocks, etc. How can I get rid of them? (The mesh has no loose geometry or interior faces and I've already done a "merge by ...
gymreading's user avatar
0 votes
1 answer
236 views

How do I fix this Multires Modifier artifact?

Edit: Solved on my own, see answer I'm rigging and weight painting eyelids for animation on my creature and came across this artifact that appears present only on the right side. I've located the ...
Shnurgle3D's user avatar
0 votes
1 answer
78 views

2 lines of corner bevel artifacts

I'm trying to fix the artifacts in the topology of this beveled corner. I already have a few corners that look good, but there are still 2 problematic spots with artifacts and I don't know how to fix ...
Akinari Hiratasuka's user avatar
3 votes
1 answer
371 views

Issues with a normal map baking

I don't understand what's going wrong when baking my normal map. You can see the strange result on a pic. It's a non-manifold geometry mesh and the text on a tire has a bad topology. Can it affect on ...
merzkoe's user avatar
  • 33
0 votes
0 answers
86 views

.usd import looks wrong compared to .fbx

I have been testing the use of .usd instead of .fbx for one of my blender scripts, and I have been seeing weird polygon artifacts on my .usd mesh after import. Compared to my .fbx mesh. Here's the ....
Zane Jensen's user avatar
1 vote
1 answer
84 views

How to pinch a hole into a UV Sphere?

I'm a Blender beginner and I'm trying to create a pumpkin creature for my game. The problem is that I am using a UV Sphere to create the pumpkin and using a Boolean Modifier to make the eye and nose ...
Felipe Rafael's user avatar

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