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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40 views

Why is blender exporting face normals instead of vertex normals?

According to this question: Why OBJ export writes face normals instead of vertex normals Whether the final obj uses vertex normals or face normals depends on the choice of shading. However I always ...
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Baking problems

getting this result when baking through the cage , cant understand why ( cage seems to be ok. W/o the cage result is ok with offset , but i am trying to bake by using cage first time so its very ...
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1answer
19 views

Moving objects along individual normals

So here I am making this simple dice in Blender 2.82a, and it's going swell, but these pips need holes to live in. I think I should move all the pips inwards a little bit and use boolean difference ...
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11 views

Match CV Normals (Tilt) to Mesh Normals

I'm wishing to transfer mesh normals to curve normals (tilt). I'd like to find a way to automate this instead of manually going through and using Ctrl+T. Any ideas on how to accomplish this? I found ...
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1answer
22 views

A new created face does not sharing the old one shading information

I wish I could have a better topic title for this but I'm just a newbie and I don't know what people call it, so... I'm here with a short video to explain my problem. Here is the link: https://www....
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2answers
182 views

Select all the faces with inverted normals

I desperatly need to clean up some geometry that was previously moddeled in a CAD software. Is there a way to automatically select all the red parts so I can filp them? Recalculating normals does not ...
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1answer
130 views

Custom Hardened Normals in LuxCore

All flattened cubes have the same Bevel modifier settings, except for the left one, which has Harden Normals checked. The faces of the left two object are smooth shaded, the right object has flat ...
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Extrude edge along normal by a specified distance

I'm trying to create a roof on an existing building mesh. I thought I would do this by extruding this edge: So I extruded it down the Z axis: But I need it to go "inwards" a bit on the Y axis, like ...
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21 views

Baked Normal Map Not Consistent

I'm trying to bake a high poly model to my low poly model. I gave my high poly model some displacement with textures from Quixel so it could be much more detailed for my low poly mesh. However, when I ...
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56 views

What causes and how to fix shading artifacts on curved surface?

Here's what I'm talking about, I've been using boolean then tried to manually clean up topo to the best of my ability while trying to keep quads: Is it just bad topology or is there something else I ...
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31 views

How do I make a plane with two sides

I'm trying to make a plane that has two sides, or a plane that doesn't have a negative side. I don't exactly know how to explain it, but I want to have a plane where both sides are facing outwards. ...
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21 views

Shading problem with an object

Anyone knows what is the problem here? This black line on the right bucket is present in every rendering mode.
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2answers
205 views

Why I can't smooth a cylinder right in Blender? [duplicate]

Why can't I smooth the upper cylinder like the bottom one? I tried to set the top and bottom face to Flat "Shade Flat", and set the middle face loop to "Shade Smooth". It doesn't work. I also tried ...
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113 views

Extrude along individual normals without changing the normal direction

I have an insetted cube like this: Their normals are quite, normal: But after I "Extrude along Individual Normals", the faces change in direction: How do I extrude them like this: ?
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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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28 views

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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1answer
73 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
37 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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17 views

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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47 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
75 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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25 views

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
76 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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3answers
447 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
74 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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182 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
85 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
675 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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2answers
146 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
93 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
100 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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132 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
210 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
441 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
30 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
91 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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100 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
47 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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43 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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22 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
441 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
588 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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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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303 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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0answers
74 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
322 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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0answers
364 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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