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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17 views

Bender model has changed

When blender model is imported to unity as .fbx file, the model has been changed like thiseven though this model having no rigs and inverted normals. And i tried this way also (changing faces quards ...
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How to scale an object so that all it's faces are moved 2 centimeters towards the median from their original position?

I have modelled the outside of an airplane's fuselage in Blender, and now I want to model the inside and doors. For that, I need to make the fuselage skin a 2 centimeter's wide "wall". Below ...
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How to create skydome model in Blender?

How do you make a skydome as used in this Sketchfab object. A skydome is an alternative to an HDRI for providing sky-like lighting. It's an actual dome that you place your scene inside, the way a ...
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38 views

Cycles Alpha Issue - Plane with seamless edge

I am attempting to overlay a high res, sculpted plane on top of another plane but I am struggling to hide the edge of the overlaid plane. The plane has a shrink-wrap modifier, a data-transfer(normals) ...
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How do I set all the faces on my mesh so they are the same shade?

I created this opening animation using blend keys. (viewport shading) When the animation opens up at the end I want all of the triangular faces to be shaded the same colour, as the mesh is now ...
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How to control normals of spiral curve so objects in array point towards the outside [duplicate]

I have a torus where I wrapped a spiral curve around using the shrinkwrap modifier. After that, I created an array and curve modifier on the "eyes" object as I want it to follow the spiral ...
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need help with custom normals! [closed]

I am working on an npr project that uses custom normals. The problem is that when I try to animate my characters the custom normals deform and the shading breaks. I wanted to know if there was a way ...
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1answer
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Eevee - My objects normals look messy in rendered mode but seem fine when looking at data

I modelled this car starting from a plane and extruding it (which probably doesn't help), and now that it's finished I just realized when changing display mode from object to rendered that the faces ...
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Geo Nodes: Align point instance to normal - tangent

I am attempting to replicate blenders particle system alignment using geo nodes. the issue I'm having is that I cant get the particles to stay upright, is it possible to align to something like normal ...
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Align Camera Angle to Averaged Normals for Small Area Below Camera

Background: I have a large terrain mesh (~6M vertices) which I would like to "drive" over with my camera. The mesh was sourced from a high quality physical terrain DEM. I am using the ...
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1answer
36 views

Stationary Blender particles on rotating circular plane not rotating as if following planes rotation

I want my particles to rotate as the circular plane beneath them rotates in order to give the impression of ships or cars travelling in a circle. My particles normals are not orienting in the ...
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cycles shadow issue, one object in the scene is way darker than it should

In my scene, one of the objects get's darker than the others, in the picture, the arms of the model should be the same color than the legs, the same materials are applied. The problem only occurs in ...
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Smooth out the outline of an object without creating more geometry

I have this low-poly mesh: It renders as this: Even with Smooth Shading on, the outline is still jagged. A simple subdiv modifier fixes that, but of course it creates a lot of geometry. I feel it's ...
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Trouble with baking edges on hard surface model from high to low poly

I created a simple box with a few extrusions, applied scale, unwrapped with all the necessary rules (sharp edge = seam edge, space between islands and etc), created "high poly" mesh with ...
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2answers
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My pocket watch is not visible through it's glass except

I am using eevee and blender v2.93.3. My pocket watch glass uses a glass bsdf that works but nothing other than the hands appear, not even the body itself. After looking at the normals, it appears ...
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Use Normal map on something other than base normals

The Bump map node has a Normal input. This lets you make alterations to your Normals before the Bump is applied. The Normal Map node does not have this. It always acts on the base mesh Normals without ...
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How exactly does the Strength input of Blender's bump nodes work?

From the Blender Docs: Strength Strength of the bump mapping effect, interpolating between no bump mapping and full bump mapping The idea of mixing together two ...
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There is Something wrong with my normal map

There's some weird problem with my generated normals. They're like all cutted, but my model is smooth as wet soap, I can't figure out how it happens and I cannot fix it, so please can some good soul ...
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1answer
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is there a way to hide the cut when 2 objects need to appear as one?

I've been trying to find a way to have 2 objects appear as one. For reasons this has to be the case for the game I'm working on. My question is, is there a way to hide the line that appears when you ...
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2answers
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Why does a smooth-shaded mesh look different upon subdividing it?

I would like to preface that by subdivide, I mean the one that merely adds more polygons inside a mesh without distorting a shape, this: Now from what I do know about smooth-shading, when a pixel is ...
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1answer
63 views

If bump maps override face normals for lighting calculations, why do flat shaded bump mapped models look different from smooth-shaded bump mapped?

I am confused in regards to this. From my understanding, a bump map sort of 'overrides' the normals provided by the mesh faces for lighting calculations. I also know that in flat-shading, a pixel is ...
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105 views

Access to Vertex Normals in Geometry Nodes

vertex_normal was an Mesh attribute, available in Blender 2.93's Geometry Nodes. It has since disappeared. The normal attribute ...
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1answer
42 views

Align normals to shape surface

I have several shapes like this as a curves. Sometimes with a whole in it: As a next step I convert them to meshes. When i do this all my normals are looking in the upwards direction. But I want them ...
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how to find the angles to set the cylinder direction as perpendicular to the faces(polygons in python) of an object? [duplicate]

I want to find angle of an cylinder so that it will always perpendicular to the position in another object faces. I got face(polygon in python) position by 'bpy.context.active_object.data.polygons['...
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21 views

Moving multiple objects at once

I'm trying to move a set of objects along say x-axis, I select them all and try to shift them, but all of them are aligned to the different axis, so they move along different axes. How do I quickly ...
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1answer
23 views

How to rotation according to face normal?

I want to place cursor with copying face rotation (Normal?) First i did place cursor to where door handle will be placed And create circle object to where cursor is placed. I want to rotate my ...
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Render inside AND outside normals?

I have a model of a process tank and I'm trying to set it so that both the outside AND inside the tank are visible. I've gone through a number of posts about normals and such but recalculating them ...
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Normal Edit Modifier changes scene appearance before pressing Apply, sounds like a bug?

I have only one object in my scene, and is a 3d scanned mesh. Without pressing any settings in the modifier, the mesh changed in appearance right after I click on Normal Edit inside the Modifier menu ...
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1answer
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texture on wrong side, normals are good

Ive created a procedural texture shown in the middle, and baked it to a texture, tried multiple uv mapping methods, reseting vectors and the baked texture always obeys the lighting of the face normals ...
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Strange transparency/artifacts when baking normals from a high-poly mesh

After adding a bunch of details (using KITOPS inserts, mostly) to a high-poly mesh, I've been attempting to bake the details of the mesh to a normal map for a lower-poly version. For some reference, ...
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Baking bevel node results in colourful normal map

I am trying to bake the bevel nodes normals onto my model. However, I constantly get results like this were the normal map looks all colourfull, instead of the light purple colour its supposed to be. ...
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Normals create black spaces in Cycles but work fine in other rendering engines

I am relatively new to blender and recently learned to bake normal maps. I did this and it worked fine (It looks great in Eevee) up until I switched to Cycles. Now, either the normal gets misaligned, ...
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How to make a low poly cone [duplicate]

The answer below is 100% false for the following reasons: As you can see in the left pictures the normals are messed up at the tip. the only reason the normals aren't messed up in his final product is ...
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Normal error: One vertex shares all normals of an object

I was working with my .blend file on a new computer and when I opened the file, for some reason the viewport couldn't show the shaded surfaces of the objects, only the outlines in object mode. I have ...
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Why the baked normal‘s color looks different when it's color space assigned as non-color?

Why the baked normal‘s color looks different when it's color space assigned as non-color, and it is identical in sRGB space. It seems like been appilied a 0.454? gamma curve onto it when the color ...
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Normal baking errors

Guys I'm losing my mind trying to figure out why am I getting those ugly green spots (with or without a cage) in baked normal maps in Blender when I don't get them in Sub Painter(the clean normal ...
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1answer
25 views

How do I fix a spiked object when importing .fbx file from blender 2.82 to Unity 2017

Dear gardian angles from stackexchange, I am working with Blender 2.82 and Unity 2017. I know that it is a common problem that .blend files of a higher version cannot be read by Unity. Apart from ...
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1answer
21 views

Extrude along normals without intersecting geometry

so basically as the title says i am trying to extrude along normals without intersecting geometry but this happen( see images ). Is there a way of doing it on a clean way? Right now the geometry is ...
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1answer
72 views

How to get "true" face normal in scaled object?

I work on addon for UV box mapping. In my addon I need to check face normsl to sort X,Y or Z oriented faces. By foloving this topic I found how to compensate object rotation by multiplying object ...
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Extruding 4 cube faces along normals not consistent?

I'm, quite new to modelling in Blender and I was experimenting with the extrusion of faces command using the starting cube. These are the steps I followed and lead to my confusion (also see ...
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To align Face center with the nearby faces of an object in Blender 2.93.1 [duplicate]

While modeling, the face center of certain faces got misaligned. It disables loop cut through all the faces that were selected. All the faces are rectangles. You can view it here: I tried to reset by ...
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1answer
66 views

Finding faces that are twisted wrong-side out relative to their neighbors?

How do I find faces that are twisted relative to their neighbors such that they face in while their neighbors face out? I'm not talking about situations that can be resolved with Mesh / Normals / ...
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How do i make Dynamic Paint use the deformed mesh normals?

I've been trying to use the displacement option from the Dynamic Paint physics modifier after an Armature modifier, but it seems that the normals used for the displacement direction are from the raw ...
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1answer
707 views

How would I fix this awful artifact shading?

I was making a gun model and couldnt figure out how to fix the awful shading on my models front without changing the detail of the model and Ive already tried [ Set from faces ], [ Average faces ] and ...
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2answers
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Which space is the normal map (for BSDF) defined in?

I know a pixel on a normal map's RGB value represents the normal vector's XYZ coordination. but in which space? World space, the object's local space, or relative to the face's normal? If it's not ...
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1answer
52 views

Odd geometry nodes (normal) behavior using Align Rotation to Vector node

Using v2.93.1. I am aiming to apply a collection of hull plates to a cylinder using geometry nodes. I am almost there, but something is wrong with 1 of the tiles alignment - which is presumably due to ...
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570 views

How do I get double sided normals without adding vertices?

How would I get double facing normals to export to other programs without the feature?
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31 views

How do I flip normals on a shrinkwrap modified shape? (Blender in 2.79.)

I've created a "Smart Watch" model (with screen) in Blender 2.79. I used the "shrinkwrap" modifier over a square to create a rounded square, then added a flattened cube for the ...
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30 views

Normal map is dark blue?

My normal map turned suddenly into dark blue, does abyone know how to turn into into light blue? High Poly Model, Low poly Model and Cage -> baked got light blue, added something to my highpoly, ...

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