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Questions tagged [artifacts]

questions about strange visual discrepancies in renders

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1answer
24 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 ...
0
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1answer
27 views

Strange artifacts on cycles render

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 ...
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0answers
17 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 ...
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2answers
55 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 ...
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0answers
14 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 ...
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1answer
31 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
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1answer
27 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 ...
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0answers
28 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 ...
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0answers
19 views

Artifacts on my explosion render

i have a problem , because when i render my project. On my scene appears rectangle.
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0answers
85 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 ...
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3answers
406 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
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1answer
73 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 ...
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1answer
22 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?
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3answers
70 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 ...
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2answers
29 views

Why does my model's eyes have artifacts?

the scene is lit up using three spots placed 120º apart
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0answers
24 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 ...
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1answer
70 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 ...
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1answer
21 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/...
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1answer
45 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 ...
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2answers
106 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
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1answer
111 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 ...
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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
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0answers
123 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
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1answer
55 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
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1answer
155 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
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1answer
401 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 ...
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0answers
20 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
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1answer
57 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
29 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 ...
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0answers
46 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
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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
609 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
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1answer
120 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
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0answers
207 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
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1answer
106 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
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1answer
48 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 ...
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0answers
26 views

subdivision problem

I started learning blender a month ago, I'm trying to make a jukebox but I got some problems This is what I've done so far: When I add subdivion: Adding holding loops(?) helps but creates artifacts ...
1
vote
1answer
82 views

strange artifact when rendering volume

I'm using a volume scatter shader to render an atmosphere for a planet. To save on time I used a spherical gradient and ran it through a color ramp to get white only on the rims of the sphere. This ...
0
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1answer
71 views

Reflections showing wave pattern after adding plane

We actually it is quite hard to describe my problem with only using words. 1 My problem is this weird wavy contour. Without the plane underneath the can, the reflections look fine (like in the bottom ...
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0answers
75 views

Dark artifacts while rendering

I have tried recalculating the normals, added an Edge split modifier and tried the Subsurf Modifier too, but none of them seem to remove the dark artifacts around the edges. Increasing the ...
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0answers
98 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
117 views

Black areas appear when using Glossy and Normal Map, Cycles

When I add a normal map to glossy, glass or any reflective material there are appearing black zones and spots on it, like the light is not reflected there. And it doesn't matter of normal maps, and ...
1
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0answers
56 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
vote
0answers
56 views

Black areas when rendering in Radeon 7870 GPU [duplicate]

Hello everyone, I have a problem with the GPU (msi radeon hd 7870 2gb oc edition), practically in some scenes the rendering with the gpu form some black parts, which are not shown if I render the same ...
1
vote
1answer
79 views

Shrinkwrapping moiré-like artefacts (blender-osm)

I'm having issues with getting a water polygon imported through blender-osm add-on to properly shrink-wrap on the corresponding terrain. Here is what the artifact looks like (the black moiré-like ...
2
votes
0answers
44 views

Getting black spots in blender render, render [duplicate]

I'm using Blender 2.79. I've looked at a number of possible answers on this, but none seem to help solve the problem. I'm getting these weird black specs in renders when using blender render. I've ...
1
vote
0answers
101 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
vote
2answers
69 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 ...
0
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1answer
245 views

How do I fix this issue with my model's texture

I've recently created a humanoid model to use for animating in the cycles engine, and in the texture view and material view, it looks fine. However in the rendered view, I get strange black spots on ...