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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22 views

Low Poly Mesh Jagged After Baking and Applying Normal Map

I have recently made a high poly lightsaber model with the subdivision surface modifier, and then duplicated and taken off the modifier to create the low poly version. I then created a cage, and baked ...
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15 views

How to fix tone/brightness change across the seams?

So after baking the normals of my character, this is the best i could do. (One of the hands and the boots stayed yellow no matter how much i tried to tweak it). But for some reason there are very ...
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Objects can't go inside my mesh?

So I've been making a a character and I've fully sculpted, retopologized, and baked normals with this character. I then went to work on making an eye, and when i finished i tried to move the eye ...
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44 views

Normal Baking Showing Yellow

I have a lightsaber hilt that I'm trying to bake. I made a low poly mesh first, then I added a subdivision surface modifier to my low poly mesh to make a high poly version. Because I added the ...
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1answer
31 views

how to fix normal of a shader after scaling with a factor of -1

I am making a door made of two sliding panels (I have simply made one panel, duplicated it and scaled it by -1 to make the second one) As you can see, the flipped one get a weird color, I guess it is ...
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problem when I bake Normal maps in all tecniques possible

I have a problem baking a normal map and I tried all the methods, I want to smooth the edges of my object and I used the selected to active method using the frist object as a high poly one with bevel ...
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28 views

Hair Particles “Reversed” Solved

I thought I had a normals problem. My hair particles were reversed, and changing the normals didn't do anything. AND I noticed when I moved the emitter around, the particles always pointed to ...
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1answer
58 views

What's the difference between Normals and Face orientation?

I'm following this really good tutorial, about Texture Painting, from CG Boost (https://www.youtube.com/watch?v=lmbAs9jE1vI). At some point the the paint doesn't work because of flipped faces I ...
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How can I get the vector value of the normal of a selected face using the Blender Python API? [duplicate]

I found one solution where I can sort-of get it mathematically by getting the cross product of the vectors in the face, but I think I'm losing accuracy since its all in floats, and rounding the array ...
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2answers
44 views

Struggling to 'fix' normals

This is a really simple model, I can't get the bevel op to smooth the edges because the normals are wrong. Normally(!), calculate outside fixes all this, or is this a bug in 2.82?
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181 views

Recalculating and flipping normals not working—but manually re-adding the faces does? (Simple mesh)

See if you can help me figure out what’s going on with this basic chair geometry with normals issues. I recalculate normals and—still have a normals problem. I check the face orientation. Ok, a ...
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1answer
53 views

Normal map baking artefacts

I created a simple Hight-poly and Low-poly geometry. when baking Normal, I get strange artifacts. I tried to change the settings, extrusion,used cage. without result. Explain how to deal with them. ...
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62 views

How to flip normals that won't flip

I'm creating some low-poly terrain in blender by starting with a grid, then pulling vertices up vertically using a random falloff to affect nearby vertices. I've ended up with some normals that face ...
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1answer
51 views

Why does joining meshes result in a joined mesh with (previously) non-actively selected meshes being transparent?

I am currently working on a character model / rig and I want to join some meshes together to a single object (not parented). However, every time I try joining any mesh, all geometry except that of ...
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1answer
314 views

Problem with normals…what else?

When I try to remesh, I see this QuadriFlow: The mesh needs to be manifold and have face normals that point in a consistent direction. It won't let me remesh. Shift + N won't work and in Face ...
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83 views

Weight painting in a fully established material

So today I am working on a landscape that I will eventually animate in 4K, therefore I want to create a lot of detail. I want to start painting in some nice detail near the river ( highlighted in red ...
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1answer
68 views

How do I get the normal vector of a selected vertex?(BMESH)

I'm trying to Orient my gizmo according to the normals, but I can't do it exactly. Sometimes perfect, sometimes not. Can you tell me what's wrong? ...
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25 views

Hard edges in render [duplicate]

I've been having this problem with several models and I can never figure out what the issue is. Hard edges are appearing on the model in rendered view despite it being entirely smooth shaded. There ...
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1answer
59 views

Merge by distance messes up shading?

I have recently encountered the following problem: I am importing a model from WOW Model Viewer, but it is imported in such a way that faces are not connected, so in order to rig and animate it ...
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65 views

Lighting error with seams/UV Islands?

I have been making a model for the Source Engine, I baked a normal map and gave it a simple test diffuse texture (Solid colors, very basic with no shading). In blender everything seems right However, ...
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22 views

How to get my normals functioning

Hello everyone! So in the picture above you can see in the background one of my objects has a normal map that I am very happy with. I created another object and then applied the exact same material .....
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2answers
193 views

Mapping normals from -1..1 to 0..1

I am trying to bake a map that shows calculated normals in 0..1 range using cycles. (As opposed to -1..1 range) When I use <...
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1answer
267 views

blender python move faces along normal

Using the GUI you can Set Transform Orientation to Normal select a face in edit mode then hit G button then Z button to move the face in the direction of the normal. I am trying to do this with ...
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1answer
22 views

After import to Unity, back faces are transparent

I'm trying to add thickness to a mesh, but the tris count is increasing. How can I fix it without tris count increasing?
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1answer
83 views

Why do i have different normal directions? (ascii stl)

Why does the blender show that the normal directions are different? B.stl ...
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68 views

Baking normals in blender(cycles) 2.8 - green on UV map?

I’m following a tutorial that covers sculpting a plank of wood, and then retopologizes it and bakes a normals map and a few other maps. The tutorial was filmed before blender 2.8, and I’m having some ...
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1answer
39 views

Normals look different from Edit and Object modes

Face orientation is different from Edit mode and Object mode. In object mode, they are all red. In Edit mode, they are correct. How to resolve this issue? Thanks a lot!
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27 views

High to Low Poly Bake Creating Seams Along Edges

I am trying to do a high poly to low poly bake with a simple test object that has slightly rounded edges. I am using Blender 2.81a. When I do the bake, however, I see a crease along each of the edges. ...
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21 views

Alt s scale not behaving like it should

so when im in edit im trying to scale faces on their normal by hitting Alt s but instead it just slides the whole mesh on a seemingly random axis, what is happening here ? 2.8
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1answer
262 views

Get or display normal vector / coordinates of selected vertex?

I have a .stl file and want to get the normal vector of a selected vertex or face in relation to the origin. Blender only shows the coordinates of that vertex/face. My blender skills are very ...
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1answer
389 views

How to set custom vertex normals for certain vertices using python?

I am struggling to set custom vertex normal vector just for certain/selected vertices in an object with python. I searched through the documentation and forums but nothing really helps so far. This ...
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32 views

How can I turn all the normals of this bezier to face outwards from the sphere?

I’m currently combining this tutorial with this answer in an attempt to make a sphere of roads extruded along a bezier. The following is my current effort (file link below): Unfortunately, I can't ...
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237 views

Get image pixels from multiple viewer nodes

For Blender 2.81 and Cycles render. I want to access all of the following data passes from a Python script: Z Normal ...
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60 views

Can't edit normals on mesh with no face

i make this bottle with just extrude vertex, screw modifier and bevel modifier. but i can't get to fix the shading. all the vertex normals facing up and i cant rotate it. all tools from Q menu for ...
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1answer
262 views

Is there a way to change the edge from 'Auto Smooth' mode to a complete curve?

My purpose I made the following modeling to make parts for the robot’s tilt arm. What I tried I first used the Surface subdivision modifier to express softness ...
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246 views

Double sided normals/backface culling off not working? (2.8)

So I've got my model all made textured etc yadda yadda. I save it as a .blend file, which unity helpfully can recognize. Backface culling is OFF. I have recalculated the outside. However, when I ...
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48 views

How can I keep quads flat when fitting a mesh to a curve?

I'm making a race track using a bezier curve and a simple mesh with an array and curve modifier to fit the curves. This is for a racing game in Unity. When moving the model from Blender to Unity, I ...
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0answers
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The cursor to selection command doesn't consider the normal direction of the face

gif A) The cursor to selection command doesn't consider the normal orientation of the face. gif B) You can use the Cursor tool with Geometry as the Orientation option to get the normal orientation of ...
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1answer
93 views

Bake normals map does not work well

I have issue woth baking normals. In some reason bake does not work well. I tried a lot of ways and configs.. But my normal map is incorect. When I'm trying to use this generated normal map in Unite ...
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1answer
20 views

Create an edge parallel to the normal of a face from a given vertex

I'm wondering if there's a simpler way to do this. The way I ended up doing it, was by duplicating the face, creating a new transform from it. But I have to do this possibly hundreds of times and I ...
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28 views

Camera space normal misunderstanding [duplicate]

I am trying to create a shader which uses camera space normals. To get those normals, I am using the Geometry node and the ...
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2answers
133 views

Animation nodes - How to make an object face camera yet let the object rotate around its normal?

Imagine an object, for example a Cube. Now Imagine the Camera. Imagine that, whatever the position of the camera is, you always want (a certain face of) the Cube to face the camera. This means that ...
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33 views

High Poly baking make some artifacts

When I baked normalmap from high poly mesh, often there are some artifacts in hard edges. Note that I usually use Auto Smooth or Edge Split modifier to make hard edge. Here's the result from ...
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Hard edges on sculpted mesh

I'm sure someone else has asked this question but I'm not sure exactly what to search for. I am trying to sculpt a tin-box kind of thing with smooth beveled edges around the corners. When I go into ...
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Help with baking a normal map

Full disclosure I'm new to 3D art so forgive me of some stupidity. I'm working on a normal map for a hand sculpt that I've done. I'm attempting to bake the high poly version of the sculpt into the ...
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1answer
69 views

Shade Smooth Render Lines

I want to simply smooth out the circle faces on the object using the Shade Smooth render selection. However, all the faces are affected by the smooth render and I get a stretched lines look to the ...
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0answers
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mesh.point_normals spherize via python not behaving the same as in-window controls

When i use the manual controls to spherize point vertex normals towards a point the spherize strength slider sets the total percentage the normal is interpolated by. When i do the same command with ...
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30 views

Can someone explain the relationship between normal color vs vector angle?

So here's my problem: what are you seeing here is a UV Sphere in 3D view with Normal pass (displaying object space normals) Can someone explain how are we supposed to know the normal angle (surface ...
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50 views

2.8 how to align vertex normal towards/away to light angle by x amount?

I am using a diffuse based toon shader for NPR models and i need to be able to fine tune vertex normals in order to force certain non realistic shadows. Trying to rotate them manually is very tedious ...
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29 views

Blender to Unity Rigged Mesh Deformation

I'm having several issue exporting an animated character from blender to unity. In blender the pose and the animations look fine but when I export the character in Unity some parts are deformed. I ...

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