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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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Normals messed up in OpenGL app

This is how my models look in Blender: https://youtu.be/TisUm5greSs And this is how it looks in my OpenGL program (ZGame Editor) https://youtu.be/U3QUXforWOo All normals are showing fine in ...
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1answer
21 views

Select faces with crossing normals

I'm working on a geology surface model, and I'm trying to find an automated way to identify cracks, rifts or crevasses. One way I thought of is to identify faces with normals crossing at a certain ...
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1answer
16 views

very simple Z Normal axis rotation

new to Blender, so please forgive if obvious.I have been looking for an answer on this.... Goal: Simple object (e.g. cube) , once rotated 45 degrees, can have rotation on its Z Normal animated. I ...
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2answers
75 views

Procedural random/different colors based on normal direction

What I have. A simple subdivided Cube with circular holes in it - every side, six of 'em. Holes have they own material, and each of the hole has different color. Holes are completely flat. I have ...
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25 views

From blender to substance painter

So i'have got a problem with blender/substance painter. When my normals are correct (outside) this happens - And when my normals are not correct (inside) this happens - So it seems like i can just ...
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12 views

diffrent color while creating static mesh [duplicate]

im new to Blender but i dont know what is happening with my mesh. It has 2 diffrent colors on it and its making me harder to work... For example: When i want to sculpt with F SculptDraw i have to ...
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1answer
23 views

How to show the normal of a face

How do you show the normal of a face in Blender 2.8. It used to be in the properties panel (n to show) but now where has it gone?
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1answer
27 views

Surface normals still regular in edit mode after displacement map

I am trying do perform a displacement map in a conical shape. I created a circle, extruded in Z and resized at the other side. After that, I selected everything and subdivided to have a bunch of small ...
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40 views

my normals are standing in all directions

My normals are facing in all directions and recalculating them doesn't improve much. Any advice?
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1answer
33 views

How can I make my selected edges render at a smooth angle?

In comparison, Autodesk Maya had a normals modifier tool in the toolbar which you could select Soften Edge or Harden Edge. Soften Edge would make edges render up to 180 degrees giving it a smooth look ...
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30 views

is it possible to get low and high poly models out of ocean modifire?

I'm using ocean modifier with resolution of 20, before applying the modifier and decimating the mesh I want to ask if there's a better way to get a low poly model out of it? lowering the resolution ...
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18 views

Recalculating normals on a .xml imported surface

sorry for what may be a trivial question. I'm trying to prepare a surface I've meshed in a different program for 3D printing. In particular, I need to recalculate normal vectors on a surface I have ...
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49 views

Extrude on Vertex Normals Broken

Median Point is set. And normals seem to appear correct. How do I fix this issue? This geo was first a mirrored object and it has an instance.
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1answer
34 views

Blender boolean modifier difference make distorsion

I'm trying to create a difference between two objects. Let's see my object below : As you can see, I get a really bad result. I would like to show you my shape before applying the boolean modifier. ...
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12 views

Adjust/bake vertex normals on specific shape key

I'm crafting pose-corrective shape keys for a model that's being exported to another engine (specifically the Source engine, should that matter. No, the engine doesn't normally use correctives, but I'...
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12 views

Calculate normals for non-manifold mesh

I'm currently playing around with unity and tried to create a room in blender and import it to unity. The room is a non-manifold mesh (on purpose) - because nobody is going to see that room from the ...
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1answer
95 views

Perform multiple face transform using individual axis

in edit mode, i select 4 faces (image1) and i want to scale them using their own individual normal axis so i can get the result as in image2. How can i do this without manually do it one by one ? is ...
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12 views

Combine substance painter normal map with one already from blender? [duplicate]

Ok, so I already baked my normals from my high poly -> low poly mesh in blender and texture painted that in blender to clean it up as there were issues. Now I need to add extra bumps (like face ...
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33 views

Normal Map weirdness!

Newbie Blender artist here and I'm having some issue with a Normal Map. The Map seems smooth but when rendered it seems to show some weird topology rather than smooth surfaces. If anyone could help me ...
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1answer
16 views

How to texture paint only one part (normal map)?

Ok, Ive baked normals and there are some I want to get rid of completely - meaning go back to the purple color so they dont show up black. I dont need them and want them gone, but need them on other ...
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1answer
31 views

Cycles weird baking behavior: changes to another image texture mid-bake

Blender enthusiasts! I'm nearly done with Aidy Burrows' Game Asset Creation course and ran into weird baking behavior from Cycles while making my final textures for the game model. Details of the ...
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0answers
8 views

Import to blender, some parts are see-through (Normals are outwards already?)

Sorry for the horrible textures and UV maps, but I'm learning UV Mapping, and when I get the model into Unity, some parts are see through, kinda like when normals are flipped. However I have ...
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1answer
32 views

Extruding along vertex normals gives weird result

I know I'm probably making some silly mistake after hours of consecutive work. I have a cylinder representing a gun barrel, and at one point I want to add a 'ring' around the barrel, as shown below. ...
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1answer
26 views

How to fix shading issue on a flat face?

Here's a simple shape with two bevel modifiers and smooth shading turned on, but the shading on the flat surface is distorted and wrong. I've tried recalculating normals with CTRL N. How can I fix ...
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30 views

Shadows not calculated properly for some of the faces in the mesh

I'm running into this issue guys where I'm rendering these dark faces even though the normals are correctly placed. I used the knife tool to cut-up the mesh for most of teh scars and cracks you see ...
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32 views

How does “Flip Normals” affect Face Corner Data?

I use the "Normal Edit" and "Data Transfer" functions a lot, therefore I'm working with custom Normals with Face Corner Normals that differ from the Vertex Normals. The Pink lines represent the Face ...
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102 views

What does 'Mark Sharp' *actually* do?

In the course of teaching myself Blender, I've always been led to believe that marking edges 'Sharp' had an effect only if used in concert with the Edge Split modifier. But then I saw a couple of ...
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20 views

Align particle to object normals?

Trying to put these objects (as particle objects) onto a slightly deformed tube model. This is it so far, but as you can see the rotation of the objects is different depending on the vertex it is ...
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12 views

Data Transfer to Adjust Normals

I have two sheet meshes, with identical curvature (extruded from the same edge-loop) .. and one has a staircase cut top edge. The cut alters the vertex normals, so they are no longer aligned down Z ...
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1answer
31 views

Can't make proper normal map of corrugated sheet

I have been trying to create a normal map of a corrugated sheet. The low poly model is a simple cube with 8 vertices. I can't understand what i am doing wrong. When I am applying this normal map on ...
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1answer
43 views

weird yellow artefacts when baking normals

does anyone know why this is happening to me ? i tried normals outside, didnt help. Edit: edited caps, and added photos, sorry new to these boards, thanks in advance :)
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59 views

Extrude Region (vertex normals)

Hi I'm a beginner I just made a couple renders, and I really got into 3D modeling, so I decided to take a Hard surface Modeling course, I was following along and the instructor Extrude the vertices ...
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16 views

Low poly model with normals in cycles

I Baked a normal map from a high poly barrel to a low poly barrel and it seemed to work out fine. I thought that I'd noodle around a bit in cycles to finalize the material, but unfortunately the ...
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15 views

mesh front invisible, normals are corrected

I have made sure that all my mesh's normals are facing the correct way. when the mesh starts the animation, I can see her face fine, but when she turns towards the camera, her face is gone.
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13 views

Can't bake normal maps properly

Here's the problem: https://imgur.com/a/2zxANMn As you can see, when the islands are not pointing at straight 90 degrees I get artifacts on the edges. Anti-aliasing doesn't really help (used the ...
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1answer
49 views

Low poly mesh interrupting normal map in render

I have been looking for a solution to my problem for 3 hours and unfortunately I can't find it anywhere, so I have to ask. When I add a normal map with hi poly mesh, the edges of the object are ...
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38 views

Normals not baking as expected

I am working with 2.79.5 and a Bevel node from this version. I use the bevel node to bake fake bevels on a normal map, bu the baking didn't turn out as expected, I ended up with a messed up normal ...
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25 views

Bevel node baking has issues

here's my little story of a particularly bad day. I was baking a lot of maps with bevel node to make faked bevels for a game engine, and at the end of my day I encountered the worst problem I could ...
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1answer
33 views

TextureAtlas flips normals on half of the deep linked duplicates

I have a strange effect on my model. I modeled the Portal Companion Cube and since there's a lot of similar objects, I created deep linked duplicates of them to make easy adjustments to all of them. ...
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15 views

Can't bake normals from high poly mesh

I'm trying to bake normals from high poly mesh to lower poly, but i keep getting these colourful normals. i tried various ray distances but i keep getting the same result. Here's the screenshot ...
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58 views

Bevel normal map baking artifacts

I am having trouble getting artifact-free bakes in my latest bakes. I am posting this here because the problem originates in how I model and mark seams in Blender. I am baking a high-poly object with ...
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Why doesn't my union Boolean modifier work using Python script?

I am new to Blender. I tried to do a union operation on all beams using the python script. As shown in the following image, the model looks like: However, after the union operation, one of the beams ...
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21 views

I cant fix normals - Blender to Unity?

Ok, Ive looked at all the tutorials, turned on blackface culling in Blender so that I could see the holes that show up in Unity, and taken these steps to fix normals in Blender: Recalculated normals ...
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1answer
41 views

how to avoid straight lines in normal maps

i've been having some trouble with baking normals. I make a hi poly mesh and retopo it. Since i need to uv unwrap, i just mark some seams into the low poly model. The problem is i get some odd ...
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107 views

Why does my normal map not work with the Principled BSDF shader?

Hey guys, I have a fairly simple problem that i simply can not get past. I've connected 3 image textures (Color, Gloss and Normal) to the Principled BSDF shader. The Base Color and the Gloss seem to ...
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49 views

Normal map issue with subdivision surface

My mesh uses a subsurf modifier, but when I apply a material with a normal map to the mesh, Cycles seems to be using the low-poly version's normals, rather than the smooth, subdivided version's ...
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1answer
33 views

See-through faces, but just in game and probably not because of normals?

I modelled and animated some low poly game characters with Blender and when I import them in Visual Studio MonoGame there are some parts of the modells see-through as you can see in the picture. I ...
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0answers
16 views

Loss of details after baking normals, why?

I used the high poly mesh on the right and baked its normals on a low poly mesh, resulting in the model on the left. Despite the decent looking there was a big loss of details, which I can't fix by ...
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30 views

Cylinder normals?

Trying to get a cylinder texture/normals to "line up" and all go in one direction. Not the direction on the face, but the direction of the texture where up is up and down is down all the way around. I'...
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2answers
302 views

Normal map not working correctly

I followed along with a tutorial which shows you step by step how to create a normal map. Parts of the normal maps shows on the default cube mesh when I render, but it shows the outlines of the ...