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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93 views

Baked normals Look a Strange

For a few months I'm researching and making little tests to better understing and optimize a LowRes Workflow, And this "error" continue to occurs on this particulary model that I'm working on, It was ...
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1answer
41 views

What's wrong with Automatic Weights doing to my Normal?

I'm having trouble with my model in Unity.. I made the model with Blender, put on the Armature(using Automatic Weights), and found everything works great. But as you can see in the image, when I took ...
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3answers
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When using a baked normal map it is inverted on half my model

I am having a problem when baking and then using a normal map. I have a high res and low res model and am using the "Bake selected to active" feature. I am using BI to bake the image as I cannot ...
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2answers
66 views

UV's and Normals

Question 1. Is about normals. To my understanding there is a way to visualize them better red being faced inward and blue being faced outward or something to that nature. Sometimes the lighting in ...
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0answers
29 views

Boolean Not Working Properly (Partial Cuts) [duplicate]

I'm trying to make a click pen mechanism, where a piece in the center of the cylinder in 1 spin locks in place, and in another spin it slides into one of the slots. I need to cut out part of a ...
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31 views

Not sure why split normals remain in the same position after smooth shading applied

In this image you can see that I have two connected planes and I am showing the vertex normal and the split normals. I do not have smooth shading or auto smooth on. This is how the last image ...
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392 views

Importing from CAD - how to have correct normals?

Importing CAD models into Blender. SolidWorks -> Rhino -> FBX -> Blender. Works fine for rendering in Cycles. But on export to .html, I get invisible patches in the model, due to the normals ...
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0answers
16 views

Artifacts on cycles render [duplicate]

I got this weird box artifacts on my model: I thought it was the normal map, so I removed it. But it's still there: How can I get rid of it?
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1answer
9k views

display face normal direction in blender 2.8

how to know if the normals of an object is flipped or not. cause 2.8 has only the same colors of normals and i cant identify if its a flipped normal. unlike the previous versions that there are to ...
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2answers
51 views

Why is this simple primitive shaded so weirdly?

I made sure everything is quads , I've checked the normals, I've unmade and remade all the faces, no luck. Why is the shading still so weird? All I did to create it before I started trying to fix ...
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1answer
29 views

How can I combine two displacement without the face normal changes of one screwing up the other?

I'm looking to apply an animated displacement to a surface which has already been displaced with a cloud texture (creating an organic lumpy base surface). It should look like this... ...applied to ...
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1answer
415 views

Particles/Hair: How do I adjust the normal so the spikes go the same way around the object?

Is there a way to adjust the up/rotation of a face's normal, so all the spikes flow the same way on the object For some reason they seam to flip over when I apply this particle system to the simple ...
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54 views

Normals not completely baking

So, I'm trying to bake a high-poly mesh onto a low-poly mesh. I made sure to check the "Selected to active" box. And I've played around with the ray distance. But no matter how I tweak it, the normals ...
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Normals of exported Blender model (.fbx) are not correct displayed in gameengine (CRYENGINE)

You can see in the first picture that the normals of the left pillar are not correct displayed. This happens with all "subobjects" in the model that are duplicated AND mirrored. The model is created ...
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1answer
562 views

How to get perfect baked normal map?

I am pretty new to blender and I am trying blender 2.8. Whenever I am trying to bake normal map from a high poly mesh to a low poly mesh using cycles render, the results are not accurate at all. I ...
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Baking only works when I restart Blender

I have a model with many separate parts and I need to bake all of the normals onto one map, but baking only seems to work when I restart Blender. Is there any way to fix this? Thanks. I made a video ...
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3answers
1k views

How to enable auto smooth option for unreal engine?

When i export my object into ue4 it looks awful without auto smooth option I see auto smooth is disabled in unreal engine. Is this possible to enable auto smooth for unreal engine ?
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20 views

Can you extrude along custom normals?

Here's a UV sphere; a panel has been cut into it. These are its vertex normals: These are its face corner normals: These are its face corner normals under a Data Transfer modifier from an intact ...
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Solidify Modifier and Rim Surface Normals

I’ve built a character surface and I’m using the Solidify Modifier to give that surface thickness and turn the surface into a shell for 3D printing. The shell must be divided into sections to be ...
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2answers
279 views

Low poly normals when baking with Cycles

Blender novice here. I'm trying to make some models to use in the Unity3D engine. I modeled a high poly tube and the low poly counterpart. Now I'd like to bake the normal map from the HP to the LP ...
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1answer
202 views

How can I change Blender's output image resolution?

I am currently trying to make a normal map for a texture I made. That texture has a 2048x2048 resolution. When I bake the normal map and save it to my desktop, the resolution of the normal map is only ...
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0answers
73 views

Baking through python

The script I have now imports an fbx, deletes the existing material and assigns a material that comes with the .blend scene. Then the idea is to bake out the cycles normal after, but I'm getting a ...
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1answer
3k views

Normal map baking does not reflect details

I have unwrapped the hi poly model: And I have unwrapped the lo poly model: Then I select the hi poly and the lo poly and bake the normal map. However, there are no details in the normal map: Does ...
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0answers
17 views

Problem with baking normals

I am trying to bake the normals of this model onto a low-poly version of it (basically, almost the same model without a bevel modifier applied). However the normals do not seem to be baked correctly. ...
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0answers
24 views

Use hairs' direction to set normal direction?

Is it possible to use the direction of hairs strands to set new custom normal directions using Animation Nodes?
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10 views

Backing normal map line artecats

I'm backing normal map in cycles and it seems to be baking fine except I'm getting line artefacts on the edges ]2
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1answer
67 views

Reflection in sphere becomes more distorted as subsurf increases?

I was baking normals from hi poly to low poly meshes. With this specific example of a hi poly icosphere the reflections are distorted, whereas the low poly sphere is less so. so i was just wondering;...
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1answer
3k views

Strange black shading. Cannot fully light mesh. (Cycles)

Here is the viewport in material view. The node setup is just a PNG texture into a diffuse shader. And this is in rendered view. I've tried using environmental lighting as well as a directional ...
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0answers
12 views

Black spots on imported meshes [duplicate]

So I'm not sure how to explain this very well because i can't figure out whats going on, sorry if this is lacking information. So there are certain meshes that I import and there are these black ...
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3answers
62k views

Why are some faces in my mesh darker?

While rendering a mesh with smooth shading on, I get a dark region/shadow on certain faces. The effect is more evident when smooth shading is applied to a mesh containing ngons, with the ngons turning ...
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0answers
174 views

I need help improving my normal map baking for game assets

I started with Blender about 2 months ago. I use that and 3dcoat to make models. I've made a lot of models i'm really happy with, but when it comes to the normal map baking process it's pretty much ...
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1answer
396 views

2.8 Normal map and Texture issue

Don't know if it's just because 2.8 is still in the process of making, but here's my problem. I have this man mesh (from cgtrader) that came with a normal map and this texture that matches it to put ...
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1answer
207 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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55 views

after applying the normal map my character looks so weird

After applying the normal map this is how my character looks pls help. The file is available here
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3answers
2k views

Clear Custom Split Normals Data on all objects

I am cleaning up a large file imported from another program with 500+ objects. All of these objects have Custom split normals that need to be cleared, and then Auto Smooth turned on. I know I can make ...
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1answer
58 views

Can not edit object after failed Normal Map Bake

Using Blender 2.79 I am attempting to create a ferret to animate. The body has been created in two versions. Both low poly and high ply objects which are located in the same space. The low poly has ...
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1answer
665 views

Seeing through objects in Game engine

I used sculpting on a plane, and things looks great. However, when I press P to play, the whole ground become a mess. I can see through it in various places, and there are also nasty looking black ...
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0answers
74 views

Using a different normal for shadows and shading

I'm using modified vertex normals for making an anime-style toon shading. The thing is, if an object is placed between the light source and the object with modified normals, it's shadow hasn't got it'...
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2answers
584 views

How can a vertex have a normal?

I understand a normal to indicate the following information: normals are intersections which are perpendicular to the plane of your face I understand this to be a vector. And that a shader uses ...
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0answers
340 views

Normals not working correctly 2.8 Blender

Normals are not working for me in Blender 2.8. I tried "CTRL+N" to recalculate outside but they still are not working. I tried also to turn them inside but it also didn't work. This also happens only ...
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1answer
34 views

Baked normal map is partly distorted/flipped

I'm trying to bake a normal map from high res model onto a low res one. Normals are all okay, no modifiers, no double vertices. Result is the same when baking the map in xNormal. Result is the same ...
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1answer
67 views

Vector Math to Determine Gravity Path

I need to code a function that basically traces the path a sphere would roll when placed on a triangulated terrain. The image below shows the problem, but I haven't got a clue how to work with vectors ...
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1answer
222 views

How to render Backfacing Culling

I have flipped normal of object, but unlucky, it didn't work in render. Is there way to fix it? This what I want: But I got this in render:
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1answer
1k views

How to flip normals/direction of curve geometry in 2.8 [duplicate]

I'm trying to make a seat belt. I've pulled a loop off the seat and converted that geometry to a curve, and then extruded/beveled the geometry in the curve properties. It works, but it's making the ...
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0answers
46 views

Blender mesh transparent in UE4

Hi I'm having a problem with this mesh of mine. It's a relatively simple object, but it keeps appearing as transparent in UE4. I think it has something to do with normal but I'm not sure what exactly. ...
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2answers
30 views

How can I quickly make two normals opposites?

The best way I can really explain this is, in a 2D space, two lines are parallel when you can draw a perpendicular line between both of them. In a 3D space, if you have two surfaces that are facing ...
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3answers
43k views

Creating Normal maps from a Texture?

Is it possible to create a Normal Map from a Texture, not a mesh? If so, how? As I'm working on an Eye, and have already made the textures, I was wondering if it was possible to create Normal Maps ...
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0answers
31 views

Why are my normals not applying correctly onto my model?

When applying some baked normals, both object and tangent baked, onto my model (Shown Below or Above), the normals show up on the model; however, the normals are not in the correct location. After ...
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11 views

normal mapping transform based off face normal axis rather than world space axis

so I'm trying to make a "holographic' or "rainbow chrome" material by having each color reflect off the surface at a different modified normal angles by plugging the Geometry normal input node vector ...
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2answers
145 views

What causes these black streaks along certain (concave?) edges?

I have a model with an open mesh terrain surface and some closed building meshes – when rendering in Cycles I'm seeing black streaks along some mesh edges. On the building models it seems to be ...

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