Questions tagged [artifacts]

questions about strange visual discrepancies in renders

81 questions with no upvoted or accepted answers
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Artifacts when rendering irregular mesh in Cycles (black lines)

when I render with Cycles any mesh (specially planes) with a bit of irregular shape (by using previously, for example, a displacement map) some black lines appear on it. Those black lines are not ...
2
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0answers
269 views

Shadow terminator artifacts issues

I work with Blender 2.81a and I have a problem with some artifacts in the shadows of objects with smooth shading. Based on the release note of Blender 2.81 ,(https://www.blender.org/download/releases/...
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61 views

Why Transparent BSDF blocks reflections of Principled BSDF? (Cycles)

I wanted to share an issue related to Cycles shaders I don't really know how to face. I am rendering a honey pot. Nothing crazy about this. But when I tried to add the sticker I noticed some ...
2
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0answers
245 views

Blender 2.80 displacement texture bug(?)

I thought I better seek help from others to make sure I'm not making a user error here before placing a bug report. In using greyscale displacement maps (textures) in blender 2.80 I've noticed ...
2
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0answers
269 views

Edge smoothing problem with solidify + bevel + subsurf

I have started learning blender and I have run into a problem when using solidify, bevel and subsurf together. The problem is that the inner edges of the windows in my object have artifacts: I want ...
2
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0answers
457 views

Strange result from baking normal map

I can't seem to figure out what is happening here. A bug possibly? I went from a normal bake result to this. The only thing that changed between the two bakes was the use of a mirror modifier on the ...
2
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0answers
832 views

Normal map artifacts in Substance Painter

I am getting artifacts in my normal map when baking high poly to low poly in Substance Painter. I already discovered one thing that can cause these is that the high and low poly objects match too much,...
2
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0answers
369 views

Rendering pixel-wise normals as RGB colors - artifacts

I am dealing with the following problem. I have a fixed camera and the mesh representing a surface. I use the cloth simulator and wind source in order to generate various shapes of the mesh. For each ...
2
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0answers
68 views

How can I get rid of these artifacts in blender internal? They appear on mesh with subdivision-modifier and lamp with raytraced shadows

When using a lamp with raytraced shadows active, artifacts appear in the shadows on the mesh IF the mesh has a subdivison modifier in the stack. But if I apply the modifier and re-render the ...
1
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0answers
32 views

Poor quality of x-ray in 2.8

Who knows what's the reason of such poor shading in x-ray mode? I can't do sculpting because i simply cannot see the shape because of these artifacts X-ray value - 0.877 Viewport settings
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0answers
72 views

Car Modeling Subsurf Modifier

I am now trying to model my first sports car in blender. I am pretty happy for the first attempt, but I have a few problems with keeping some edges sharp and subsurf others. Currently I am using an ...
1
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0answers
24 views

orange artifact moves with screen

i was trying to bevel something and this orange speck appeared when i ctrl z back. i cannot get it to go away and reload its still there it does not show up in a new file, it looks like 3 pixels, but ...
1
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0answers
28 views

Artifacts on stars when exporting to FBX

I've just finished a Model. When exporting to FBX (and OBJ too), the stars form some weird artifact, which you can see in the images below: The first 2 Pictures show Edit and Object view respectively,...
1
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0answers
42 views

remove artifacts from transparent image

I'm trying to render an image using cycles and my rendered image has these background artifacts that look like lines. These lines match up with the extent of the picture. I made both images (the one ...
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0answers
28 views

Weird render glitch in rendered video

I was rendering a scene with a couple of objects in it: One object with a shader to act as a "green star" Another object surrounding the first object, with a cell fracture in the mix; Usual shader is ...
1
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0answers
91 views

Extrude and Bevel problems with SVG Curves

Alright, so I'm working on a background using a 2D logo I've created for myself in Illustrator. Ive decided that for starters, I want to turn the logo into a 3D object, with each path beveled on the ...
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0answers
25 views

Artifacts on my explosion render

i have a problem , because when i render my project. On my scene appears rectangle.
1
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0answers
59 views

Weird Sharp Shadows when normal baked with cage

I am getting this weird sharp edges at the shadow transition when I used cage while baking them. It didn't appear when I when cage was not used, but without cage the edges are very sharp and don't ...
1
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0answers
240 views

Sculpting problems, not enough faces?

I've just started trying out the sculpting tools in blender. I first followed this sculpting basics tutorial: https://www.youtube.com/watch?v=uVpwivEl_6o and am now trying to sculpt a leaf shape. I ...
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0answers
83 views

Artifacts appear in final render, but not in preview

I'm trying to do a simple cup, I have reduced the materials to an absolute minimum of nodes, so the issue probably isn't in the material. The rendered view in the viewport looks like this: but the ...
1
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0answers
146 views

Remesh modifier creates unnecessary planes

I'm trying to achieve a low-poly effect on an imported heightmap after applying Subdivision surface (Simple) modifier and of course Displace but when i add a Remesh sharp i obtain this: Into which ...
1
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2answers
154 views

Artifacts / Darkening while baking

I created this crate for a game I'm working on, I've been trying to bake my wood pallet texture I have but every time I try to do so my bake comes out having artifacts and the material itself darkens ...
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0answers
61 views

Rectangular Artifacts

I've been playing around with the open-source space game Endless Sky, which uses flat 2D sprites for all its spaceships but the sprites are rendered via Blender. I'm investigating the possibility of ...
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0answers
133 views

Triangulation artifacts

After triangulation I've got these shading artifacts. how do I get rid of them?
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0answers
177 views

How to avoid mesh anomalies after Knife Project

Using Knife Project to have some windows and doors in an aircraft fuselage, however the cut produces these anomalies around the window corners, where the triangulation is, that I cannot find a way to ...
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0answers
1k views

artifacts in baked normal map(cycles)

trying to bake normal map from high to low poly mesh result have artifacts 1- it not smooth 2- it have some weird colorful areas what I did wrong? need help :(
1
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0answers
483 views

Artifacts blender cycles

I did a Tutorial on YouTube. When rendering the animation I got a diagonal line with artifacts. This is a render of 300 samples I am fairly new to blender so thought i was doing something wrong. ...
1
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0answers
91 views

Garbage pixels along one edge of image in 3D view

My son is working on a project in which he is creating animations using 2D images. We are seeing pixels along the top edge of one of the images in the 3D view and when rendering. There are no pixels ...
1
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0answers
245 views

Dark spots and lines showing up on render, GPU vs CPU?

I've been rendering out an animation for the past three days of a punching bag flying through a wall. However, I noticed something kind of annoying. From frame 72 to 73, it seems like the smoke gets ...
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0answers
607 views

Horizontal Render Artifacts When Using OpenCl

I've just started rendering with my new AMD GPU and realized that I'm getting some strange horizontal line artifacts. As you can see, in the box on the right, there are strange blue lines, and all ...
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0answers
13 views

Texture artefacts / distortions on mesh

New to blender, I imported a design from a CAD software using Mesh objects. I applied textures on the objects (to render object sides) and on Top and Bottom faces. On the Top and bottom I have some ...
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0answers
11 views

How to prevent weird black artifacts from forming when I use softbody sims?

Long story short I decided to make a nice softbody sim of a mesh. Just wanted it to plop on the floor with a jelly-like consistency. However, when I baked the sim, some weird black artifacts formed ...
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0answers
24 views

Weird Jittering Effect Going On With Model?

So I have a 3D Model of Godzilla, and so far everything is great with it. The only problem is this weird effect going on near Godzilla's mouth area where the lighting seems to be jittering. I don't ...
0
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0answers
16 views

Artifacts in Objects and meshes in viewport V2.81

Can anyone please tell me how to remove these artifacts in meshes and objects in the viewport. It happens with any mesh or object I place whether it's a low poly or high. This has never happened to me ...
0
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1answer
17 views

Some funky stretching going on in character animation

Well, first of all, I saw many posts about stretching, but mostly they are about unproperly vertex painting and in those other posts you can see the stretching directly in the viewport, but my case is ...
0
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1answer
25 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
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1answer
21 views

Problems with “simple-mesh” smooth shading

I'm modeling a wooden elephant and using this method for cleaning the topology. I'm having a little problem with a "simple" mesh, when adding a subdivision-surface-modifier and applying the Shade-...
0
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1answer
25 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 ...
0
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0answers
12 views

Weird artifacts in rendered shadows

new blender 2.8 user here. I found weird artifacts in the shadows when I rendered this cup. Only happens when the plane is dark, although you can see a bit of that weird pattern in the coffee. Here's ...
0
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0answers
11 views

Artifacts when smoke and glass interact

https://youtu.be/_YHDpam17fs Can anyone think of an obvious reason the mug and the smoke simulation create these weird artifacts? The setup should in theory be pretty simple. I can post the blend ...
0
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0answers
74 views

Cycles GPU OpenCL render has square white artifacts and strange lines on an AMD RX 5700 XT in Blender 2.82

Issue: Rendering with my AMD GPU, either in GPU-only mode or GPU+CPU mode, causes artifacting (either strange black lines if GPU-only or white box artifacts of GPU+CPU) in OpenCL Cycles renders. GPU-...
0
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0answers
21 views

Rendering artifacts in flat shaded geometry only visible in cycles. What causes it?

I'm doing the Blender course from Polygon Runway, and in my second attempt I ran into some odd artifacts that I can't pin down. They are only visible when rendering in cycles, and I'm quite sure there'...
0
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0answers
22 views

HDRI strange double rotation with glass shader

I am using EEVEE and when I see in render mode through a glass there is a transparent "copy" of the environment image's reflection but with a different rotation. The problem is caused by the glass ...
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0answers
16 views

Smoothing topology detail

I'm making a chair but I'm getting this weird artifact here where I've added loop cuts to be able to shape a curve. How do I smooth out this area?
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0answers
14 views

Square artifacts appear in subsurface'd, smoothed UV sphere

I'm rendering planets using a couple of UV spheres (terrain and atmosphere) and a displacement node (for mountains) in Cycles. Since I've upgraded blender, sometimes the renders have square-edged ...
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0answers
15 views

Weird user interface behavior once I minimize blender window

This weird behavior occurs once I minimize blender window and the same issue appears in blender 2.7b. Can someone help me with this?
0
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1answer
30 views

Alpha Layer + Transparency Shader Glitch in Eevee

I am following the CG Geek tutorial in which he details modeling a tree in one minute. (https://youtu.be/y7PdiGXbrD0) I'm running into problems when it comes to shading. When I add a transparent ...
0
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0answers
28 views

What's causing this object to show diamond artifacts in Cycles?

On render and in the preview shown, a lot of faces are bisected, with half shaded differently. It only happens in Cycles. It shows up even if there is no material. I tried redoing the UV map. I ...
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0answers
25 views

Why does the Eevee rendering create alpha squares where there should be a model?

So, I was using Eevee's bloom effect to make a light grid, with a transparent background, exporting to the DPX format (10-bit, RGBA,) and when I rendered I got these alpha squares at the bottom. Is ...
0
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0answers
33 views

artifacts at polygons

Artifacts appear when I connect the normal map (the presence of the texture itself is optional). the normals at the polygons are looking out.