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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24 views

Fix face smoothing

I would like to know why it happens and how to fix this issue? I have a model imported from the FBX file. I want to add a face to this model. So, I select edges and ...
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normal map bakeing issue

my issue is regarding baking normals every time I try to bake normal I don't know why a normal map couldn't bake properly I share my normal map setting please describe why iam facing this problem
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1answer
28 views

Confused about x/y when extruding along normals in Python

I'm a 3D newbie but I have programming experience. I'm using Blender 2.91.0 on Linux. I am trying to write a script to create a path/road from JSON data. The general strategy is to start from a block, ...
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How to create ship painted metal panels material?

Can someone tell me how i can get similar bumps on a surface as the images below So far i have just unwrapped the hull and used the following material with a musgrave texture. The model can be ...
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1answer
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Why Geometry's Tangent are difference from Tangent node?

According to the document, geometry node's tangent is surface tangent in world space. And tangent node is from a manually created UV Map for full control when use UVMap. They output difference result ...
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Normal baking not working

I'm trying to bake the normal from high poly to a low poly model. I made a cage that perfectly fits outside the high poly but when baking I get weird artifacts that don't look like a ray distance ...
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2answers
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Why do i get wrong shading like if there are sharp edges that shouldn't be there?

This propeller i modeled has wrong shading on the tip of the blades, like if there are sharp edges but there aren't. The vertices are all connected, the normals are calculated correctly like u can see ...
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Make Vertex Normals Perpendicular to face in smooth shading

Making a face shaded flat automatically makes all the vertex normals parallel to the face normal. However two flat faces touching each other will not share their vertex normals. Basically select the ...
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Making and exporting custom split normals?

i imported this model and some of the edges are shaded smooth even thought they are split. I know it's because it has custom split normals but i don't know how i would go about making my own model ...
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1answer
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Why are the normals of this primitive circle pointing upwards, and how to reset them? [duplicate]

Using Blender 2.8, when creating a primitive circle using the API like this: ...
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1answer
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How to create a sphere with an outer layer of removable pieces? [duplicate]

I'm creating a video game which requires an inner sphere ("the core") and an outer sphere. The core is a solid icosphere, but the outer core must be made of individual triangular prisms that ...
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1answer
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How do I add UV coordinates to a procedurally generated texture?

I have set up this decent normal map for a beaten metal, but I have a slight stretching on the model. Note that the texture is 3D. I don't know why there is this stretching: the object is in scale 1 ...
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Rotation of UV islands causing normal map seams

Throught trial and error I learned that rotation of UV islands can caouse weird seams Below is an image of automaticly unpacket uv map with wrongly rotated island(left) and manually rotated one(right) ...
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getting objects to properly face towards normals

I wrote this little addon: https://gist.github.com/SuddenDevelopment/16df6602a2ecab06f56dc8a2c7e4c9e0 and at first I thought it was doing great, but have found a bunch of scenarios where the area ...
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2answers
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Viewport material shading looks like face orientation is wrong but the issue is something else

The next image will show the problem I am having. I've been playing around trying to fix this, I had this issue ages ago once but I never found a fix, a year later it has cropped up again. I have ...
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1answer
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Why can't I bake any kind of functional normal map?

I first noticed this issue when trying to bake a sculpted base mesh man to a retopologized one. I can't seem to achieve any kind normal bake that works at all. I've tried following multiple step by ...
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Editing Normals To Define the Solidify Modifier

below is a picture of a shell after the solidify modifier has been added. Is there a way to edit the normals individually to make the slot parallel? Preferably in the python API. (note: I am already ...
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Mesh became grey when I recalculated normals, can't fix it

So I was cleaning up an object in blender (mold I'm making of an eyelid to 3d print and pour silicone into) and things started going haywire. I filled a hole in some faces and the new face became ...
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28 views

Painting color and normals simultaneously

It seems this question is unresolved : If I want to paint let’s say wood color and normals on a part of my mesh, how would I do that? Painting it once for each layer (color then normals) will produce ...
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How to simulate reflection of people in a 4 meter parabolic mirror to show that they won't appear upside down?

Answers to the Space Exploration SE question Which Apollo “mystery” was said to be finally solved by a better rendering engine? demonstrate that sometimes a correct rendering is the best way to ...
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Visible seams on the mesh

This mesh has a seam on it. When I apply texture on it the seam is visible. How to fix this issue? I also share the file
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How Can I Get A Clean Topology While Keeping The Normals Smooth?

I'm working on the star destroyer. I have created the hunger bay at the bottom of it but while trying to maintain clean topology. The result ended up with normal's that are a bit warped. Any idea how ...
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Mesh is inconsistent and different color

Hi,i'm confused why this happened to me, i tried to click CTRL+N and nothing happened? i tried to delete it and merge it again and the mesh still inconsistent. What should i do now?
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1answer
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How to include normals in my obj export

I was making a game in Java and lwjgl.This type of game development needs Vertex positions and normals to render a model , along with texture coordinates and indices. Now i exported a simple obj file ...
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Blender into Roblox studio Faces and Normals problem

So basically I started a blender model to send into Roblox studio and I have already come across this problem before where parts of the faces don't show up. So eventually I learned to flip the faces ...
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Why Do My Normals Get Deformed When I Apply Bevel?

The normals get deformed when I apply bevel. Is this supposed to be like this? If not what can I do about it? I post a video here to demonstrate the problem: https://youtu.be/gdx2oekJz78 Also here is ...
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3answers
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An Issue with Normals and SubDivison

A visible seam is observable during SubD operations on a boolean cut. Prior to applying the Boolean I created supporting edge loops which are not approximately* in line, they are exactly* in line, ie. ...
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2.8: Turning on normals on both sides

In Unreal Engine, the roof(this is a plane) of a house object created by Blender is transparent from inside. I guess that it is necessary to recalculate inside normals. However, if I do that I will ...
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Storing the direction of normals to have the desired shader's look

Good morning community. I would like to ask if there is a way to store the direction of the normals (similar to vertex group) , so that the model can have its normals switched to the way I want the ...
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Don't know what goes wrong when I try to bake a normal map

Hey guys im trying to make a mew low poly mesh and get the detail from the high poly one onto the low poly one. However whenever I try to bake the normal map it comes out weird like that on the corner....
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So can someone explain how to bake textures/normals?

I tried baking textures, it turns out this way and I cant figure out what I'm doing wrong.
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Strange dark color and reflection spots on solid mode [duplicate]

I am new to Blender. My model appear darker with strange white reflections/spots, even on Solid Mode. Parts that are disconnected from the main body are fairer for some reasons, and the mirror ...
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25 views

How to align origin's z axis to individual object's normals?

I have an ico sphere and I need this random transform for the individual faces. I may solve this by using particles (but don't now how either) anyway... when entering to edit mode and faces I have ...
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1answer
41 views

normal map shows up slightly offset on mesh, but only in cycles render view

I am following a tutorial to make an anvil in blender 2.9.1. I have 2 different meshes, a sculpted high poly mesh, and a low poly, regular mesh. I made sure both objects were on the exact same spot ...
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Rotated normal vectors

If I access normal vectors for a rotated object, they are not rotated together with the object. Is there a way to get them in world coordinates instead of local coordinates?
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21 views

Very undetailed normal map, blurry? High poly to low poly mesh help

I am in the process of baking a normalmap from a high poly mesh down to a low poly mesh. I am getting a very blurry looking normalmap with bad results. Is there something I am doing wrong? The image ...
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1answer
61 views

Why is my high-poly mesh bake result poor?

I'm new to baking maps in general, so I'm sorry if this is a dumb question. I'm making some drumsticks, and I wanted them to appear used and "beat up", so I sculpted a lot of details into ...
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1answer
60 views

Mantaflow use in blender

.Blend file I am a blender beginner and after watching some tutorials online I figured I'd give modeling and animation a try. I am trying to make an oil hourglass animation that will move the liquid ...
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1answer
177 views

Normal Flip Modifier

I have 8 objects sharing the same mesh (linked duplicates) and I want half of them to have their normals flipped, so I am searching for a modifier that flips all the normals on an object before I set ...
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0answers
27 views

Best way to allow water to flow inside this mesh? [duplicate]

I am a blender beginner and after watching some tutorials online I figured I'd give modeling and animation a try. I am trying to make an oil hourglass animation that will move the liquid downwards.The ...
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0answers
12 views

Failed to export normal image

I simply want to export an image from blender for a getting an overlooked view. The code is from an example to export three types of image including the normal one. The code is not working and I don't ...
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DONUT Displacement Faces and Object are Not the Same

Hey Everyone. So first there was some missing faces on the donut, so I *knife-cut some edges in. From the beginning though, I noticed the displacement is smooth on top then gets randomized further ...
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Make normals face around a sphere not working. Blender 2.8

I am trying to use a data modifier on a foliage asset to make the "leaves" face uniformly in a spherical shape. I surround the leaves in a uv sphere and then select the leaves. create a data ...
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1answer
55 views

blender normals not recalculating [closed]

check out this file https://www.dropbox.com/s/r80hkvh4oulf4ra/faceOneWay.blend?dl=0 I'm trying to fix the normals to all go in one direction. I have tried recalculate and nothing is happening. Is ...
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Triangular Black parts on mesh after applying a Normal Edit Modifier

I'm trying to create an anime-style character, I've imported a VROID Model that I made and changed the shader on it. There is a solidify modifier (for outline) and an armature modifier placed below ...
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1answer
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Having a problem with Normal Baking a high poly model into a low poly model. (with file included)

I'm having this issue where, yes i can bake the normal map, but when i apply it onto the lowpoly model with the normal map something weird happens in the middle of the model. I have no idea what to do....
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1answer
43 views

How to render normals?

I wanted to make render with some model which has flipped normals in. But when I render it, the render was looking like this: I didn't find anything about it and how make it to show in render. Is ...
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1answer
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Object seems split into two

my object is split into two. Last time I got rid of this problem by making normals consistent, but this time it doesnt work. I have a Mirror Modifier on the objecgt, but not applied yet. Thanks for ...
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1answer
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How to avoid flipped looking normals when baking them?

So I ran into this the second time now. The normals on the model flip randomly despite the faces are facing outwards. In this case it happens at the uv seam of the model but other times it seemed ...
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How to separate faces of an mesh, center pivot to every face according to its normal? [duplicate]

I have separated all faces and set the pivot point (origin) to center mass with this solution: This link is where i have found the first bit of the code Here is the code: ...

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