Questions tagged [artifacts]

questions about strange visual discrepancies in renders

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559 views

How to get rid of this artifact when sculpting by using multires

I tried to sculpt this foot with multires, there was no problem until I save the project, then these artifacts appear. I smoothed with smooth brush and they have gone. But when I save or return to ...
1
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0answers
432 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. ...
2
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2answers
472 views

How to reduce artifacts on curved text/vector

this is a problem I face a lot when working with branding and typography. After importing vectors/typing, extruding and bending (simple deform or curve modifiers) it always come up with those ugly ...
1
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1answer
51 views

artifacts on all my objects

All my objects in all Layers have these kinds of artifacts, anyone know why that may be?, when i hit "P" to play blender game they dissapear, but its super enoying to work with when you are texturing ...
1
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0answers
83 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 ...
2
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1answer
1k views

Yellow artifacts when baking normals

I've been searching and trying a few things for the last couple of hours and I can't figure out why there are yellow spots showing up on the normals when I bake them. Originally the wings had the same ...
3
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2answers
660 views

Mesh artifacts only on render

I am making my phone in Blender and my mesh has weird artifacts on rounded corners only on render, not in viewport. Removing doubles and flipping normals doesn't help. I thought it's releated to non-...
0
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1answer
361 views

Weird Artifacts When Rendering

I am working on a 3d model in blender (obviously). I don't know why, but when I hop into rendered mode, the object has weird triangles on the object. I don't know why those are there, but i think it ...
1
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0answers
219 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 ...
1
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1answer
387 views

Dealing with Artifacts in The Render?

Please help, I am going insane trying to deal with this. I am pretty new to blender but i've just completed building a character. The face is pretty intricate and I had a feeling it was going to be a ...
0
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2answers
533 views

Blender noise during paint in Texture paint mode

I have weird problem. During paint in texture paint mode after paint the color is not filled but have any "noise". Like on the image:
2
votes
1answer
649 views

Strange texture paint artifacts

I'm trying to paint on my 3D model. UV's are unwrapped with no stretching. Texture is 1024x1024 with alpha. Brush has alpha check as well (I've fiddled with all the brush settings, couldn't find ...
1
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1answer
387 views

prevent z-fighting between billboard particles?

In an effect like blossoming flowers and many other particle effects the z order of individual particles doesn't really matter, so can I tell Blender to make them stop z-fighting and causing ...
2
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1answer
366 views

Cycles hard edges in retroreflective material within a face

I have a problem with a retroreflective material in Cycles. When i render my scene it seems that some faces get rendered differently. The scene contains only one lightsource in form of an emitting ...
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1answer
66 views

Waving artifacts on texture/light Cycles

In the image below there is a pattern on the material that was not intended. How do I fix this? I attached image and .blend file. If You need any details, please, ask. I don't know what should I give ...
1
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0answers
556 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
93 views

Is there a faster way to clean up these tiny artifacts?

So photoscan creates a lot of artifacts and I want to remove em as efficiently as possible. I know that adding a subsurf level kind of does it but I don't want to subsurf a model that's already made ...
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0answers
68 views

Artifact when DOF is applied to layered render

Notice that the background follows around the skin of the body and cuts through the hair, which is on a separate layer from the body
5
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1answer
536 views

Smoke hi-res fire artifacts in Cycles?

When rendering smoke/fire simulations with cycles I sometimes get some random lines/artifacts on my render. Do you have any idea what might be causing this? There are also some issues with ...
2
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0answers
65 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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1answer
482 views

Blocky Textures around object, Blender render artifacts, possible causes?

I'm getting weird render artifacts around the edge of a cylinder on the floor, blocky areas that look low-res: (Edit) Image A: Blocky Textures behind the cylinder Rendering from other angles shows ...
1
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1answer
1k views

What can I do to get rid of ugly triangles

I have a problem with baking textures and ambient occlusion. Weird triangles and artifacts appear at end of process. I have tried (i think) everything on internet like soldify, triangulate faces, ...
2
votes
1answer
570 views

Final render different than preview, black artifacts appear

Update: Added edge split modifier, now it works. I don't understand any of this. I'm going crazy over this. Tried rendering in 2.75 and 2.76b. Same result. I have this piece of a sword that just ...
3
votes
4answers
488 views

How can I make transparency act as expected with the internal renderer?

Seems like a z-buffer issue. Everything seems fine in the material preview, but in the render the sky (or transparency, if no sky) "bleeds" a pixel or two between the intersecting part (intersecting ...
6
votes
1answer
137 views

High start clipping causing dashed edges in 3d view?

I read up that issues sometimes occur with a too low start clipping distance, and since the model I'm working on is pretty huge, I set the start clipping to 1 blender unit. However, I noticed that the ...