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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How to flip all the normals properly on this model? [duplicate]

this is my first time here on StackExchange. I'm pretty new to Blender but I have successfully created some simplistic models so far. So I just modeled a roof rack made for Euro Truck Simulator 2. ...
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Understanding the bump node

I see a lot of tutorials that explain how to use a bump node by demonstrating its use and giving a hand-waving explanation regarding what it actually does. Things like it "perturbs the normal&...
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Smooth mesh with armature is flat after export (blender 2.83.13)

I have a problem with blender. I have a mesh created on blender and smooth that I then blindskin on maya (at that time my mesh is still smooth), then I take it back on blender (without changing ...
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Baked normals not calculating gradient smoothly when using a depth map

I'm currently trying to bake normals using a depth map generated from a rigid body simulation I did featuring a few hundred coins - The problem I'm encountering which I wasn't able to find anywhere ...
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Python/API - How do Normals work?

I'm writing a program that snaps objects to random parts of a larger objects. Right now I've been looping through all the vertices of the main object, grabbing the coordinates of a random vertex and ...
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how to find out which uvs we need to flip

in Maya, we can see flipped UVs in red and correct ones in blue. So is there any way to find out which one is the unflipped/wrong UV in blender??
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Move an object after baking normals

I'm a new Blender user and I'm facing my first big issue. I've just baked high poly normals to a low poly object successfully after a night of tutorials reading, but now, whenever I try to move the ...
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1answer
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How to make Normals on seemingly flat surface smooth

So I'm having this problem where from certain angles this geometry is showing creases where there shouldn't be. Here's the things I've tried: selecting all the geometry that should be level and ...
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2answers
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Shading / UVs panel not present

I found a few answers to a question I had (regarding normals) that reference this panel 'Shading / UVs': I do not have this panel in either object or edit mode. I have Blender 2.8 and my interface ...
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Toon shaded fur. Having fur use the normals from the mesh underneath

the look i'm trying to achieve is similar to this. Toon shaded similar to LOZ: Breath of the wild. I'm using the Lighting Boy Studio 2.0 shader library. But it's same principle as with a single simple ...
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1answer
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How do I create a two sided plane with subsurface scattering for modelling leaves and foliage?

Usually leaves and foliage are modelled as thin polygonal planes with no thickness. Because of the amount of geometry required to achieve dense realistic foliage, modelling them with any thickness ...
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Faces with separate materials slot are transparent?

I'm a beginner, and I'm modelling a hard surface object in Blender 2.93 alpha. I've assigned a different material to some faces to add decals. For some reason, those faces are shown as transparent in ...
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193 views

when baking normals, do I have to set shading to smooth or flat for the low mesh?

When I set the shading for the low-poly to flat, I get the sharp edges baked into the normal map which I don't want. When I set the shading for the low-poly to smooth, the smooth-shading gets baked ...
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Why is my tension map turning out as bumps?

I am having a problem with an tension map addon. https://blenderartists.org/t/revised-mesh-tension-add-on/1239091 <- that one. and the tutorial (by kext next) I was following is https://www.youtube....
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How to get rid of sharp edges\artifacts in Cycles?

So I imported a model of my sim into blender to mess around with renders and maybe try and make some CC, but (as usually the case with game extracted models) the model has these 'artifacts': How do I ...
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Shade Smooth in Sverchok?

When I try to animate or tweak my nodes, the mesh automatically switches back to flat shading despite I have set it to smooth previously. Q: How can I set the shading to Smooth when using Sverchok?
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Creating a cage for baking for a mesh that has a gap in it

I know the concept of creating a cage by just copying the low poly mesh and inflating without changing anything else in terms of vertices etc. However, my mesh as shown has an inset and backwards ...
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extrude along normals going wrong

I try to extrude the faces here: But it get weird and uniform like this: I make sure that I apply scale and make even offset, but it's the same. I want to extrude like the other faces that I extrude ...
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1answer
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Shading issues after normals baking

a). I baked normal map and applyed it to lowpoly mesh and I made 3 clones of it with different options for demonstration purposes b). I got the issue with shading What I want to be: lowpoly mesh ...
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1answer
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GeoNodes. Random Rotation from normals

Let's say I have a log and I need to place moss or lichen on it. I make a bunch of nodes as in the screenshot below. But how do I make this moss rotate along the conditional Z-axis, not global, but ...
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Normals different from their intended direction

I have some mesh who's normals don't seem to correspond to their indicated normal direction:It is just all over the place, and does not change when I recalculate normals. I intended to have the ...
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1answer
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Can't select some vertices

I've tried to make a model according to the lesson https://www.youtube.com/watch?v=EztmPOhnWwA. After applying the subdivision surface modifier, I faced an issue when one of the "tongues" ...
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Combine All Objects but retain the individual custom normal data?

I have a scene with many objects with differing autosmooth values eg some are 30 some are 60. If I combine all the meshes into 1 it will mess up the normals as each object has different mark sharps ...
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1answer
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How can I make adjacent object meshes seamless?

I have a character mesh where different parts of the body are separate objects (body, head, mouth) but the vertices line up as if it could be a single mesh. I am getting shading differences between ...
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1answer
44 views

How do I flip normals of duplicated faces?

I'm trying to write a blender script which duplicate and flip faces if X material is found. Right now the script only can duplicate the faces but I need to flip their normals. (Only duplicated faces ...
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1answer
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Baked and applied normals reflect light at an angle

I hooked Alpha to the object to remove the displacement effect so you can see clearly. I use planes to create shaders and bake the diffuse and normals to separate ...
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Set object origin and transform to face midpoint AND normal via Python

The answer to the above question seems to involve moving the scene cursor to the selected face, performing some matrix magic (math) and at one point using ...
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Backface culling problem on textures with alpha

i was experimenting with NPR rendering recently and found this issue in the method i use for outlines, i just can't get my head round it. So, what i did was to use the solidify modifier with flipped ...
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Dispalcment modifiers coffuses normal direction

When I use displacemnt modyfier on the model it displaces the faces only on x axies insted of perpendicular to the face. But normals of model are set to by perpedicular.
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1answer
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How to undo split normals?

Is there a simple way to undo split normals? It seems that it can be done with Python code like described in Clear Custom Split Normals Data on all objects but how to do this for one object using the ...
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1answer
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How to correct these normals along bevel?

I imported a model and corrected the normals (from what I could tell) in solid display mode: I hadn't noticed that the normals are still messed up all over this model until I used material display ...
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1answer
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Geometry Nodes align

How can I align a Cylinder with the normals of the surface? I want it to be aligned with the points on the surface as well.
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3answers
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How can I know where the normal ring is convex and where is concave?

Normals to understand - How can I know where the normal ring is convex and where it is concave?
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How to export without Normals

I was advised to export a model - which I'm using in a THREE js website - without Normals. How exactly do you do that? I'm not seeing that as an option when I try to export it (it's a ".gltf"...
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1answer
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My object becomes darker during animation

I have made this animation: https://i.imgur.com/qXzYD8o.mp4 Each frame consists of an object that has been generated independently using python. These objects are isosurfaces of a function at ...
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I like the effect of this/these normal(s), but I do not know how to recreate it

I see that the vertex normals at the top are at a different looking angle than the rest. Every time I try to rotate normals it only rotates the split normals (pink). I am thinking if I can rotate the ...
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In sculpt mode, how can an alpha brush texture be projected onto the mesh, instead of being projected from my current view?

I want the brick brush texture to be applied according to the normals of the mesh(red arrows), not from the current view (blue arrows). Have I missed something obvious? Thanks in advance. Current ...
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1answer
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how to put image on normal?

I'm trying to put the JBL logo on stereo normal, I've tried using texture paint but it doesn't work how to make PNG image blending with the normal
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1answer
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How can I see the normal data of a face in Blender 2.9?

I'm looking for a way to see the normal data of a face, represented as x, y and z in Blender 2.9x. Sounds simple, but I can't find the option anywhere. I seem to remember having the option in 2.79. ...
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Mirroring Without Changing Faces [closed]

I need to mirror a mesh (square building window) to fit the right side of the building face. When I mirror it using Ctrl+M it changes the normal and it looks weird on texturing. Is there any way to ...
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2answers
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Why are anti-aliased normals so rough on polygon faces?

Smoothed the mesh normals. Put Auto Smooth normals at 30 degrees. But these stripes - I don't understand why they appear. Maybe someone knows how to smooth them out and why are they so rough? ?
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1answer
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Apply -1 x scale (mirror) to object mesh and keep custom normals with python

I have meshes with custom face normals but they should be mirrored in the X axis. They are not perfectly symmetrical so I have to apply -1 to x scale. As I apply the scale with ...
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0answers
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Weird Normal Lines Glitch [closed]

When viewing face normals as lines + Subdivision modifier + toggling Subdivision cage, there's a weird glitch where the face normal lines appear in random locations / shapes: https://youtu.be/aA-...
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Sverchok generating random points on faces facing upwords [closed]

I'm trying to scatter random points on a mesh, this points should be scattered only on faces that have their normals facing upwords (z axis)... how can i create something like this? I?ve been fidling ...
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Normal map comes out wrong from baking

I am making a train in blender and I want to use normal maps to show panelling and rivets without having to add it to the model. To try this I have made a model with some rivets as shown below (first ...
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1answer
759 views

Geometry Nodes and Exporting (Creating a mesh) in Blender 2.92

I'm trying to export Geometry Nodes geometry to an FBX. When I import the file elsewhere, though , there don't seem to be any normals associated with the Geometry Nodes object. Typically, I'm able to ...
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1answer
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Why does my model's edges are too hard?

Sorry for the question, but I honestly don't clearly understand this issue (well, not an issue at all). So, I modeled a simple door knob, with a considerable low topology because well, I didn't think ...
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Is there a way to control smoothing groups in blender?

I'm trying to export a model from Blender to FBX format I'm using auto smooth with weighted normal modifier set to 50, and for some reason, I'm not sure why when my client inspect the model in 3ds he ...
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Adding materials to parts of normal maps

I recently came across the idea of normal maps, and I've begun baking them and using them in my work. However, I can't seem to figure out how to apply different materials to different parts of the ...
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Curve normals (or any kind of path normals) malfunctioning

Well... when creating a path of any kind it was functioning normally. I only messed around with basic transormations like tilt & scale and then suddenly it was like this whenever I create new ...

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