Questions tagged [artifacts]
questions about strange visual discrepancies in renders
385
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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. ...
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1
answer
28
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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 ...
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28
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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 ...
- 847
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53
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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 ...
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36
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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
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33
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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)
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41
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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 ...
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answers
56
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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
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2
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1
answer
18
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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 ...
- 33
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1
answer
30
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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 ...
2
votes
2
answers
40
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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 ...
- 23
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68
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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 ...
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18
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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 ...
- 77
1
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1
answer
40
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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 ...
- 107
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26
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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 ...
1
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4
answers
60
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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 ...
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.
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31
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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?
2
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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.
0
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1
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69
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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.
- 17
1
vote
1
answer
39
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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 ...
- 307
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votes
1
answer
44
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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 ...
- 197
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35
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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 (...
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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 ...
- 1
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answers
14
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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 ...
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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 ...
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 ...
1
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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 ...
- 197
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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 ...
- 1
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....
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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 ...
- 197
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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 ...
- 1
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0
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31
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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 ...
- 1
0
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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 ...
0
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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 ...
- 105
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 ...
0
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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 ...
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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 ...
- 406
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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,...
- 847
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0
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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 ...
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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 ...
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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, ...
0
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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 ...
- 153
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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 ...
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1
vote
1
answer
125
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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 ...
- 313
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1
answer
236
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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 ...
- 11
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1
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78
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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 ...
3
votes
1
answer
371
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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 ...
- 33
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0
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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 ....
- 51
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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 ...
