Questions tagged [normals]
Normals describe how faces and vertices are oriented and can be used to aid various calculations and effects. This tag should be used for questions regarding normals in Blender, from uses to issues.
1,328
questions
2
votes
1
answer
60
views
Auto Smooth Angle Isn't Working As Expected
I have a mesh of a section of conveyor belt that gets extended into a complete belt extending along the Y-axis with an Array modifier and wrapped around the X-axis with a Curve modifier, and I want ...
- 123
0
votes
2
answers
20
views
How to move selected vertices along their normals in Edit mode by script?
I'm trying to write code to move selected vertices along their normals in Edit mode. It seems like such a simple thing, but I cannot get it to happen.
I have searched this question and I keep finding:
...
- 449
0
votes
1
answer
44
views
How to create an Outline on generated objects with Geometry Nodes?
Creating an outline effect on an object is kind of simple with a backface-material assigned to a duplicate of the object with a position set to an offset by the normals:
It also works if I create a ...
- 101
-1
votes
2
answers
55
views
How to find the angle between surface normal and World Space Z up vector
I'm trying to use TOA to discover the length denoted in red in the screenshot below but this requires that I find the angle (denoted in green) in rads between the surface normal and the world UP ...
- 449
0
votes
0
answers
13
views
Human model problem after subdivision surface modifier [closed]
Blender file will show a figure I am working on.
When i add a subdivision surface modifier to it I find that the area when the legs join the body is not working as I hope.
What I am doing wrong?
I am ...
0
votes
2
answers
41
views
Why are my faces warped with strange artifacts?
My faces have a weird shading to them even though the normals are facing the correct way. There are also no n-gons. When I import into substance it also looks warped.
How do I fix this issue?
https://...
- 111
0
votes
0
answers
16
views
Irregular "smooth" shading / artifacts still present with flat face smoothing selected
When using eevee and enabling "Scene World", with Mesh > Shading > Flat faces enabled, blurred and irregular shadows still appear.
I have checked/recalculated the normals (they are all ...
- 11
0
votes
0
answers
16
views
ray_cast normals misalignment with respect to face normals
I'm trying to code an add-on that creates instances of an object on the surface of a target object, having the instances aligned with the normal of the face of the target.
I can't use Geometry Nodes ...
- 325
0
votes
0
answers
21
views
Rigging Problems with vertex groups
I initially rigged my character with the standard rigify rig provided with the software. I changed my mind afterwards since the face rig they provided didn't work as well for my character art style. ...
1
vote
1
answer
30
views
Simulation Nodes: Particles with normal-aligned velocity
This is driving me nuts. I'm trying to generate a particle system with Simulation Nodes in which the particles spray out in the direction of the face normal from where they spawn. I got it to work ...
- 31
0
votes
1
answer
35
views
GN: Instances on curve points and rotating based on surface's normals
This may be a basic question, but I have been struggling with this problem for a few evenings now. I want to create a GN system where I have:
a grid, with a noise node to create some displacement
a ...
0
votes
1
answer
15
views
How to export a circle shape from blender to unity3d?
using Blender 4.0
This is how I created the circle:
pressed on Shift + A keys in the opened menu selected Mesh > Circle.
to move the circle up only one axis only up I first selecting the circle by ...
- 219
1
vote
1
answer
25
views
Bad normal smoothing around bevel after boolean
I am trying to do a boolean difference between 2 cylinders. The boolean itself and cleaning up the mesh afterwards didn't pose any issue, however the shading looks pretty bad after applying a bevel (...
- 21
2
votes
0
answers
54
views
Normal/Bump maps causing flat shading
Whenever I add a normal/bump map to a smooth object the shading goes flat. Even on a UV sphere the issue remains. The shader is only using procedural textures so I can't change anything to non-color ...
- 21
1
vote
1
answer
171
views
How do you align modular instances so they face outward using geometry nodes?
I am trying to align a number of instanced cubes around the perimeter of a grid, and all the cubes should be rotated so they instance facing outward and upward.
It is not a perfect grid, the intention ...
- 1,994
0
votes
0
answers
34
views
Baking normals issue
I am trying to bake normals for this guitar i had made, but it never bakes properly. I have tried playing with the extrusion, ray distance, with cage, but i never get the whole thing baked, nor do ...
- 33
0
votes
0
answers
14
views
Applying Normals/Textures to Animated PNG (No Grease Pencil)
I want to import a 2d animation in PNG format but also want to utilize normal maps and such to my 2d animation to give it a certain look. I have the frames at the ready but don't know exactly how to ...
0
votes
1
answer
28
views
backface culling not marking faces as red and blue
I remember backface culling used to mark flipped normals as red and correct ones as blue. Not sure if it's different with the newer versions, but backface culling is now only displaying the flipped ...
- 185
0
votes
0
answers
26
views
Custom normals are not working in render, only in viewport
Using 3.6.0
My custom normal split geo data is working fine in viewport in render view, but when I go to render the image through the actual renderer it doesn't show the custom normals? Notice the ...
- 11
5
votes
2
answers
475
views
Why multiply a normal?
I am looking at this tutorial Geometry nodes for damage to stone. It uses a normal multiplied by some random vector to produce offset. What does multiplying a normal of a point with random vector ...
- 172
1
vote
0
answers
44
views
Edges showing up in normal map
I'm looking for help on rendering normals. I've rendered out normals without issue before, but something seems to be off now. Here's an image showing the problem.
I'd expect there to be nothing on ...
- 11
1
vote
1
answer
23
views
Cant figure out how to flip normals on this Space suit Helmet
I downloaded this space suit helmet here https://www.cgtrader.com/items/3165630/download-page and I was planning on 3D printing it. I cannot cut it into sections without converting the normals using ...
- 11
0
votes
0
answers
45
views
Retopology and reflections issues (wrong normals)
Retopology and reflections issues (wrong vertex normals)
I've started retopology. But I've noticed a problem. Although the topology seems to be clean, the reflection is completely broken compared to ...
- 11
2
votes
1
answer
56
views
Use Geometry Nodes to Align Instances Along Mesh Edges with Instance Z-Axis Always Aligned to Perpendicular Ajacent Faces?
I'm using Geometry Nodes to to instance two meshes onto another mesh, here an icosphere to start out, such that I can develop sets of modular 3d printable "Hubs" and "Struts" that ...
0
votes
0
answers
6
views
Custom Split Normal Data not rendering properly, but does on random frames?
I'm having this issue where I have custom split normals on this character, and it's fine in viewport. But when I hit render I get something that looks like I've cleared the normals, which looks a lot ...
- 11
0
votes
0
answers
29
views
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
1
vote
2
answers
87
views
How to get correct curves from Mesh to Curve node?
In the example file below, we have a simple profile created with a bunch of vertices forming a continuous edge.
Using the help of geometry nodes, I want to apply a fillet to smooth out the shape, make ...
- 47
1
vote
1
answer
65
views
Material displacement to mesh around UV sphere, strange normals?
I'm trying to follow this Youtube tutorial about convert a material displacement input into a mesh for 3d printing.
This works by outputting the displacement as a .exr file which is used in a ...
- 13
0
votes
0
answers
47
views
Raycast with Normal as the Ray Direction Doesn't work
I am trying to delete points along the Normals of instanced planes. The best idea I had was to Raycast but it won't take normal data as ray direction and I don't understand why.
Originally, I thought ...
0
votes
0
answers
7
views
Shader map along normals inside cycles from center to the periphery of an object
Hello Blender Community,
I have an object that consists of a simple sphere with geo nodes based tentacles applied to it. I want to create a mask with a color ramp that alters the color beginning from ...
- 51
0
votes
0
answers
43
views
Functions to remove extra faces & fix normals? | Marvelous Designer FBX to Blender Workflow
[edit] Here's the project file:
While I realize that the answer may be staring me in the face, I've also sunk a lot of time into this with no real progress.
I'm working on using custom Marvelous ...
0
votes
1
answer
22
views
Selected to active baking produces stretched faces - Blender
I have an issue when baking
Texture faces are stretched after baking "selected to active". It only bakes the textures if the normals are flipped on my active object(scanned mesh).
Things I ...
- 1
1
vote
1
answer
43
views
Is it possible to change the direction of vertex normals in 3.4?
Is it possible to change the direction of vertex normals like in Mayas normals editor? I just want to point my vertex normals straight up.
The normal modifier is only getting about half of the vertex ...
- 895
0
votes
0
answers
23
views
Why do I have to flip the normals to make my solidify modifier's material index offset show up?
The top picture is when the flip normals box is unchecked. The bottom picture is when the flip normals box is checked.
- 1
2
votes
1
answer
58
views
How to conform normal directions of a roof
I want to scatter roof-windows with geometry nodes and i have the problem, that my normals are pointing in different directions. It is driving me crazy but its probably a easy fix. I simply wan't that ...
0
votes
0
answers
54
views
GN writes an attribute that intervenes in the normal direction and provides it to the shader，
I want to use gn to achieve the effect like Susan's below. How can I use gn to create an attribute that interferes with the normal direction and pass it into the shader? thank you very much
- 1
2
votes
1
answer
21
views
Version 2.83 normals not working
i'm using V2.83.
when i turn on normals in Overlays, all the normals are pointing X axis and pink.
face orientation is on.
- 33
0
votes
0
answers
22
views
Mirror modifier and shading issues [duplicate]
I’m new to Blender.
With the ear picture below, what do I do about the ring around the ear? Also with the head I can’t seem to figure out how to get rid of the line going down the face after I ...
0
votes
0
answers
92
views
Mesh displacement and normal map artifacts in Eevee
In my project, I'm using Geometry Nodes to displace a mesh and then, in a shader, adding additional texture via a combo of Noise Texture, various mapping nodes and then Bump.
I'm seeing all sorts of ...
- 85
0
votes
0
answers
28
views
something went wrong with normals, i guess
guys! after I extruded some faces along normals, it really got my mesh funky. In solid veiw it is visible that something is wrong. But when you get some texture on it, it stretches like hell. Also, ...
1
vote
1
answer
40
views
Why does adding an image texture node to the normals section make the face look half light/half dark?
I'm adding image textures to the various nodes on my character, and this happens to some of my meshes when I add a normals texture:
The face of the character is half light, half dark. This happens ...
- 451
1
vote
1
answer
50
views
When bending a plane from Import Image as Plane plugin I can see the other side of the image
When I take a plane from Import Images as Plane and then bend it so that it overlaps, I'm able to see the other side. I'm not sure how to prevent this behavior from happening:
To recreate the problem:...
- 121
0
votes
1
answer
77
views
Normal/face bug total mistery
Original question go further in the post to see the edit 4 behaviour
(Hello, i have a problem with my meshes they suddenly appear to have weird bug with normal only when i move my camera on axis like ...
- 13
0
votes
0
answers
34
views
How can I get Blender to import normals as normals and not bump?
I have a set of FBX files that I am editing and cleaning up. These meshes have normals textures, but when I import them, they read as bump maps, with the Height attribute pointed to the normals map. ...
- 451
1
vote
0
answers
32
views
Specular reflection displays original faces of my model despite defining an object space normal map
In my scene, I have a Suzanne where I'm attempting to paint normal maps in Object Space (as it's easier to create facets). However, when I preview it, it's apparent that the normal map doesn't ...
0
votes
0
answers
55
views
Can you animate and change perspective of textures in real time and have textures that follow camera view?
I want to be able to change the perspective of a texture and animate it. I know you can put a 2d rig onto a 3d model, but in tutorials you have to import a 2d image of each frame (or in a face rig, &...
0
votes
0
answers
49
views
Data Transfer causes sharp edges in render
I'm using a data transfer modifier on an object, and its causing these jagged shadows on the mesh in the render view. This isn't happening in the viewport. I'm using blender 3.4, and rendering in ...
- 1
1
vote
2
answers
198
views
How to align object on normal vector between vertex and line
Update 29-08-2023 22:20
Dear community,
Thank you for the input! The responses gave me some useful tips and nodes to integrate in the desired workflow. Since not everything was clear, I will give some ...
- 11
0
votes
1
answer
39
views
Pre-displacement normals
The "Geometry" shader node provides normal information for the geometry being shaded. This can be useful, for example, to mix a snow shader with a rock shader depending on how "flat&...
- 173
1
vote
0
answers
32
views
Can't find Bake Option in Render Properties
I am using Blender 3.4.1 on a PC with an NVIDA GeForce RTX 3600. I have no Bake option in the Render Properties tab, and it doesn't matter what I select in preferences under "System": CUDA ...
- 11