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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.

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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 ...
kaboose1066's user avatar
5 votes
2 answers
550 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 ...
ph_zero's user avatar
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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 ...
Lou's user avatar
  • 11
1 vote
1 answer
25 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 ...
MrNedwab's user avatar
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0 answers
63 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 ...
masanori's user avatar
3 votes
1 answer
193 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 ...
Emma Scott Lavin's user avatar
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0 answers
15 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 ...
kaboose1066's user avatar
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0 answers
37 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 ...
Zak Nelson's user avatar
1 vote
2 answers
314 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 ...
crucchi's user avatar
  • 69
1 vote
1 answer
130 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 ...
user977042's user avatar
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90 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 ...
UnHingeDoor's user avatar
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9 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 ...
Macks's user avatar
  • 51
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0 answers
141 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 ...
BluViolets's user avatar
0 votes
1 answer
27 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 ...
IoanF's user avatar
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1 vote
1 answer
81 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 ...
bonypoy's user avatar
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41 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.
Zanly's user avatar
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2 votes
1 answer
93 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 ...
BlenderLearner's user avatar
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66 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
capozio's user avatar
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.
leoitch's user avatar
  • 33
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0 answers
25 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 ...
Tiffany Leigh's user avatar
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0 answers
134 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 ...
Mantissa's user avatar
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0 answers
30 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, ...
Dikey Klim's user avatar
1 vote
1 answer
50 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 ...
Jack Harris's user avatar
1 vote
1 answer
75 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:...
Brock Brown's user avatar
0 votes
1 answer
102 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 ...
Flavie404's user avatar
0 votes
0 answers
61 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. ...
Jack Harris's user avatar
1 vote
0 answers
59 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 ...
Valentin LARRAS's user avatar
0 votes
0 answers
64 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, &...
Jessie Ferret's user avatar
0 votes
0 answers
77 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 ...
DogFly's user avatar
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1 vote
2 answers
375 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 ...
Yosri Sem's user avatar
0 votes
1 answer
73 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&...
John's user avatar
  • 207
1 vote
0 answers
62 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 ...
K. Prentice's user avatar
0 votes
0 answers
25 views

Normals being weird

How do I fix the part circled in green? And why are there those red spots in the yellow circles? (I already tried recalculating the normals)
Impulsed YT's user avatar
0 votes
1 answer
1k views

How to get normals of generated geometry in geometry nodes?

I'm using Blender 3.6.2 and I'm experimenting with geometry nodes. I would like to apply a transformation to the points of a mesh primitive I added through nodes, but I want to use the normals of the ...
sortai's user avatar
  • 103
3 votes
0 answers
36 views

How is a normal computed for a non-coplanar quad?

Simple question, if I have a quad with four vertices that are not coplanar how is the normal for the face calculated? I know that there are two distinct ways that the quad can be split into tris, but ...
BENG's user avatar
  • 131
0 votes
1 answer
89 views

How to collect the normal vectors and the vector of another object at one point to evaluate Dot product?

It is necessary to collect the normal vectors and the position vector of the third-party object at one point and perform the operation Dot product. How can I do that?
White Raven's user avatar
  • 1,055
1 vote
1 answer
44 views

how to rotate the normal map so that it always looks at one of the axes on the controller object?

Like this. It should work like this in the end.
White Raven's user avatar
  • 1,055
1 vote
1 answer
69 views

How to create a fake light of this type when the normals that are directed to the light object?

I'm looking for roughly the same result. ( in the example I'm spinning the big sphere along with the small sphere ( which represents the fake light ) around the big sphere's origin. ) I think the ...
White Raven's user avatar
  • 1,055
1 vote
1 answer
106 views

Simulation: Problem with normals and Align Euler to Vector

I have a problem with the align Euler to vector, In a simulation, I am distributing some points on a grid, then use instance on points to have some cube to follow the bending grid. The problem is that ...
Jules Guérin's user avatar
2 votes
1 answer
52 views

How to make a shader that shows the direction of the normals relative to another object?

We need a shader so that normals that look towards a third-party object color the mesh in white or its gradation.
White Raven's user avatar
  • 1,055
0 votes
0 answers
18 views

How do you create a hole in an object that is material based? [duplicate]

So I'm working on an object and I want to create holes in it that are material based. Take a look at the example: This example is from Cyanide227 and I'm referring to the rectangular holes seen on ...
Joss's user avatar
  • 11
1 vote
1 answer
31 views

How to place a wave material along the normals of beveled Bézier curve

I'm new to creating materials in Blender and I'm trying to design a material that resembles the texture of a ringed worm (like an earthworm). I'm applying this material to a mesh created from a Bézier ...
Simon Baldin's user avatar
0 votes
0 answers
21 views

Hair curves flipped inside after a bit aditional sculpting

Hair curves flipped inside the normals surface. The UV unwrap does not help. What the reason it can be ? When I try to redone an interpolation modifier the result is same.
Pierre Rambal-Cochet's user avatar
2 votes
2 answers
95 views

How to remove the line in my model?

There's a line that runs in the middle of the snake's head. I applied the mirror modifier and I believe the line appeared. Any idea of how to remove it? File: https://wetransfer.com/downloads/...
EverBlazen's user avatar
0 votes
2 answers
138 views

Why my reflections are stretched?

I've imported from Plasticity an OBJ, and even without Ngons I still got this mess at the angles of my mesh: I've tried manipulate UVs, using a normal map and assign to the roughness attribute, using ...
Alessio's user avatar
0 votes
0 answers
57 views

How to keep the procedural texture unchanged in the pose mode?

This question is related to the previous question. The shader material is setup based on the dot product between the surface normal and a vector <1,1,1> as the following screenshot shows: In ...
Blender Lake's user avatar
0 votes
0 answers
28 views

Instances aren't aligning to normals in geometry nodes [duplicate]

I'm trying to make the instances I've created "lay" on top of the mesh, similar to snake scales. I have a simple geometry node setup. I've fiddled with my nodes but am still stuck.
Alex Deleon's user avatar
1 vote
1 answer
141 views

How can I instantiate objects along an edge without gaps and fix the normals?

I'm trying to make a procedural building with Geometry Nodes using faces as the base and instantiated objects for details. However, I am having trouble getting the objects to instantiate at the edges ...
Pooya heydari's user avatar
0 votes
0 answers
272 views

Copying normals in Geometry Nodes similar to data transfer modifier

[Blender 3.6.1] I would like to make a Geometry Nodes setup that blends the normals in between objects to get an effect similar to this setup of modifiers: To be more specific, the goal is to have ...
Riley's user avatar
  • 1
3 votes
0 answers
292 views

What happens to UV Tangents when using Custom Normals?

Tangent Normal mapping is done with the mesh Normals and UV Tangents. For it to work, these are supposed to be consistent with those used when baking, and orthogonal to each other. When you set Custom ...
Ascalon's user avatar
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