Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [artifacts]

questions about strange visual discrepancies in renders

1
vote
1answer
36 views

Strange artifacts

I imported a model but after i set the materials, these strange artifact appeared and the lighting seems wrong. I tried to recalculate the normals, disable/enable the autosmooth and other things but ...
1
vote
1answer
31 views

How to get rid of black triangles and artefacts?

for the past few days, I've been struggling against artifacts problems with a mesh. I used the boolean modifier on this following cube : After applying the "Difference Operation", here is the ...
0
votes
1answer
18 views

Shading artifacts on the render

I am trying to model Cap's Shield but when I render it, there are some artifacts near the star. Can anyone tell me what's the issue here? Blend File (Please your own hdri since the file would be too ...
0
votes
0answers
11 views

Blender 2.79b Sculpting error and / or bug (?)

This is the surface of the object I'm trying to sculpt, to which I applied a 3x Subdivision Surface modifier. [ This is a wire frame overlay to show the face and edge positioning. Here I'm ...
0
votes
0answers
32 views

Artifacts in viewport. Recalculate Normals and Remove Double Verticles have no effect

I feel stupid, but I don't know what to do. Bad topology? there is no triangles Wireframe Solidmode. X-ray is off. Render mode is ok, cycles artifacts
0
votes
0answers
46 views

Smooth shading not so smooth? [duplicate]

I don't understand why I see these edges when rendering my model. They don't appear in object mode, but when I render. And the topology seems dense enough to not produce these edges? Here are some ...
2
votes
0answers
60 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 ...
0
votes
0answers
22 views

Artfacs on Volumetric clouds cycles [duplicate]

I'm trying to make a cloud with some displace, the first with a Voronoi and the second with a cloud, finishing it with a simple volume scatter shader, but when I'm rendering the cloud get same ...
4
votes
1answer
214 views

Weird artifacts appeared in eevee because of normal map

I'm was working on a shotgun and suddenly for some reason some weird artifacts appeared on the metal materials. I know that removing the image texture and leaving only a noise texture+bump on the ...
0
votes
0answers
33 views

What are these normalmap artifacts in my material?

Blender has always given me minor normal map issues in its renderer and, even since updating to 2.8, I've noticed that these errors are still around. I'm assuming this is an error on my part, but I'm ...
1
vote
1answer
38 views

Shading artifacts / Tricky modelling situation

I hope someone can help me out with this. I'm modelling a moka pot, similar to this one: This is what my mesh looks like in the snout area: As shown in Fig. 3, I marked the planes around the ...
0
votes
0answers
23 views

Has anyone else had weird visual artifacts appear on perfectly normal faces when baking textures in blender render?

I'm trying to bake a UV texture of multiple materials in blender render. All faces in the UV editor are organized and separated enough that there is no possibility of color overlap where I don't want ...
0
votes
1answer
53 views

How can I clean up Boolean operations?

I'm trying to create a mesh as shown in the image. The best way I could think to do this was to use the Boolean modifier, which looks nice shaded flat. However, this creates a messy topology with ...
0
votes
1answer
47 views

How to stop smooth shading/sub surface distorting render

Im using blender 2.8 and modelling a Pokeball, however, whenever I try to smother out the flat edges with a subsurf or smooth shader it creates weird artefacts. Any suggestions would be greatly ...
1
vote
1answer
43 views

Strange artifacts on cycles render [duplicate]

Do you have any idea what is causing these artifacts on my cycles render? I'm using a sun light source to illuminate the scene. 128 samples. I've pasted a screenshot of the material that the ...
0
votes
0answers
37 views

Fixing black faces in texture after using dyntopo

Lately I have encountered a problem while sculpting a model created using photogrammetry. When I was using dyntopo to fix areas with wrong topology, newly created faces didn't dynamically unwrap and ...
0
votes
2answers
131 views

Blender (Cycles Render) Normal Map Baking goes wrong

Who I am and what I do: Hello People! I am fairly new to 3D modelling (still using 2.79) and at the moment I am working on an M1 Abrams low poly tank (around 4600 Tris). What I want to do is use ...
0
votes
0answers
24 views

Weird normal map artifacts after baking in cycles but not in blender render

I duplicated a head and add multiresolution modifier to it, then I did a simple skin texture, but when I tried to bake it into the lower poly mesh some weird artifacts appeared. I already tried ...
0
votes
1answer
36 views

A fluid artifacts, strange long splashes. What am I doing wrong?

I've checked all the normals, meshes, tried to redraw all, scale down the fluids, tried clean blender installation, another computer with a fresh 2.76 blender. The results are similar. So I guess ...
1
vote
1answer
30 views

Weird UV artifacts in final render

In preview render (with enabled RenderLayer) it looks ok: But in actual final render something strange happening with UV map: I tried to reunwrap mesh, change sample count but result is still the ...
0
votes
0answers
55 views

Texture painting is totally messed up, resulting in lines and unpainted areas

after a few hours of hairpulling trial end error I ended up more confused than before. I am not extremely familiar with all that blender has to offer, however I decided to take the task of modelling ...
1
vote
0answers
20 views

Artifacts on my explosion render

i have a problem , because when i render my project. On my scene appears rectangle.
2
votes
0answers
134 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 ...
0
votes
3answers
670 views

White Block Artifacts in Eevee Beta Renders?

Any idea what's causing these two white blotches? They don't appear in the viewport render. here's a viewport screen capture, and here's a render with the spotlight (that's located behind the model) ...
0
votes
1answer
134 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
1answer
39 views

Rendering issue (JPEG artifact on characters mouth/non-transparent background) how do I fix this?

I am rendering a Roblox character in Blender to make a GFX. I seem to be continuously running into this issue, no matter how many times I re-render the image. How do I fix this?
1
vote
3answers
167 views

Bad normal map baking

I'm trying to migrate from 3Ds Max to Blender and everything was good until the moment I started to learn baking process. I have a 6 faces cube as low poly and its subdivided copy as high poly. Using ...
0
votes
2answers
33 views

Why does my model's eyes have artifacts?

the scene is lit up using three spots placed 120º apart
1
vote
0answers
31 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
votes
1answer
80 views

Getting rid of reflective artifacts when using Cycles [duplicate]

I cannot find a way to fix this issue. I tried higher sampling but the artifact still appears. If you look at the image, I added a light behind the lens. But there are fireflies/artifacts in the ...
0
votes
1answer
23 views

After “with automatic weights”, nose became weird

After "with automatic weights", nose became weird. Why is this happening? Here's a video that shows the problem: https://youtu.be/1izcoGULxDo Here's the .blend file: https://www.dropbox.com/s/...
0
votes
1answer
71 views

Fixing artifacts from an imported Medium sculpt?

I'm creating some assets for a game I'm making using Medium by Oculus, but when I import it into Blender it leaves me with strange lighting artifacts. I tried dissolving some vertices and edges to try ...
1
vote
2answers
129 views

Compositing Shadow pass problem

Here is my problem, I need to create 2D aspect animation from 3D model in blender. From the start my rended image is ok But when I transform it, I need to use the Shadow Pass and it looks realy ...
4
votes
1answer
122 views

Why does cycles' volumetrics leave stepping artifacts?

When I render out my rather sharp volumetrics, I get the kinds of artifacts shown in the images and links below. They are obviously produced by step size, and samples stepping through the volume, and ...
0
votes
0answers
26 views

How can I remove these little artifacts from my rendered image? [duplicate]

I've read that too many reflections can cause these artifacts, but I couldn't find a solution to remove them. My sampling was set to 512.
2
votes
1answer
43 views

Blender boolean modifier difference make distorsion

I'm trying to create a difference between two objects. Let's see my object below : As you can see, I get a really bad result. I would like to show you my shape before applying the boolean modifier. ...
3
votes
0answers
156 views

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 ...
1
vote
1answer
75 views

Blender artifacts when zooming out

I facing the problem that I get artifacts around areas where polygons are close together when zooming out: this is also visible in rendered shading. It seems like some of the polygons disappear: This ...
1
vote
1answer
223 views

Exported model from Blender has holes when imported in Unity

so I have a problem with exporting. I finally have gotten myself to pick up Blender and this is my first attempt at a low poly model created from the ground up. And in blender it seems to render just ...
0
votes
1answer
608 views

Low poly mesh/Oddly sharp edges on normal map where it is supposed to be smooth

I was wondering if anybody could help me with this problem I'm having with all my models/normal maps. As you can see, it mainly happens on the handles[the handles of a knife model]. You can still see ...
0
votes
0answers
21 views

Can't bake normal maps properly

Here's the problem: https://imgur.com/a/2zxANMn As you can see, when the islands are not pointing at straight 90 degrees I get artifacts on the edges. Anti-aliasing doesn't really help (used the ...
0
votes
1answer
72 views

Strange artifacts in a simple object

I'm modeling a mirror. I created this frame by extruding planes for the outside part and then connecting both holes from the front and the back. I used and applied a mirror modifier for the Y axis. ...
0
votes
1answer
40 views

Contain mesh within another mesh boundaries?

I'm trying to limit a mesh within certain boundaries so that I can then scale it really big and the mesh never goes out of boundaries of a box. I've tried using boolean but I get a plethora of ...
0
votes
0answers
52 views

Animated Curve Modifier + Cycles Motion Blur = Weird Render Artifacts

I'm trying to render an animation which involves two animated objects which have curve modifiers attached to them. After making a test render, I found some odd render artifacts, and I was hoping there'...
1
vote
0answers
16 views

Render vertical artifacts [duplicate]

Can't find information on it, since don't know what it is actually. This is what I have in Rendered Viewport Shading: And this is what Render shows me as an result: So, what are these vertical lines?...
4
votes
1answer
704 views

Smoke Simulation has weird artifacts and looks low res

I can't figure out why my smoke looks like this. It has weird artifacts and looks like it was rendered on 144 resolution. This was actually rendered in 2560 x 3840. I also used 400 samples and I'm ...
0
votes
1answer
189 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 ...
2
votes
0answers
230 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 ...
0
votes
1answer
122 views

Banding artifact on open GL Render

I'm currently working on an animation openGL project, and i have this "banding" artifacts on gradient induced by spotlights (see picture below) I'm aware it seems to be because of 8bits precision ...
0
votes
1answer
52 views

How to get rid of the shape inside a shape [duplicate]

Hello guys, when i enter into Edit mode, i always get this shape inside the mesh. (I'm talking about the rectangle inside the cube) does anybody knows how to remove it? or what its for? (if its ...