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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233 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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313 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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1answer
55 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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67 views

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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159 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
251 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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2k 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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0answers
137 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
74 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
29 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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3answers
1k 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 ...
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1answer
335 views

Editing the normal direction to be parallel with the face.

So I am looking to change the normal direction from being 90° on the face to just kind of lay flat on the face. Is that possible to achieve in Blender? Or are there any addons that will help with this?...
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46 views

Strange shading for face of wheel?

I have extruded a wheel that originally looked like this: My modified wheel now looks like this: As you can see, the shading looks incorrect, with strange dips instead of a flat surface. But the ...
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12 views

Weird Pixellation, Almost Like Dealing With NGons But Different [duplicate]

I bought this element from CGTrader and imported as a obj file. The pixellation doesn't seem to be from ngons. The normals are facing outside. My thoughts are that it has a ton of overlapping ...
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212 views

Problem baking Normal Maps from high to low poly - grey result

I selected the High poly mesh first then the low poly. (both have the same coordinates) Created a new image in the uv map called normal map v2. I created a material with an image texture node and ...
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1answer
215 views

Some edges are not smoothing in Blender

I imported this geometry from Zbrush. As you can see the other edges around this area were smooth-able, but I could not get the edges connected to this cone shaped ridge to smooth. The first image is ...
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1answer
278 views

How to bake normals using modifiers only?

I have an UV-unwrapped base mesh that I want to bake tangent normals into. Only detail I need is a few bevel modifiers and a subdivision surface. How can I bake the smooth version without using cage ...
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1answer
171 views

How to ignore backfaces when doing a raycast?

I am using a raycast (just like in the template "operator_modal_view3d_raycast.py") to get a face index. The object the ray is cast on is a cube with inverted faces (directing inwards). Unfortunately ...
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39 views

Relieve topology tension on planes and borders

I was prototyping a steel shield and everything was good until I had to carve holes in it. It was a simple task, but I've noticed something that I ever wonder how to solve it. The topology around ...
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0answers
372 views

Strange result from baking normal map

I can't seem to figure out what is happening here. A bug possibly? I went from a normal bake result to this. The only thing that changed between the two bakes was the use of a mirror modifier on the ...
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159 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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427 views

Exporting a model to be read by Assimp

I'm trying to create some low-poly models for my game and I'm trying to learn some Blender basics. I can create a model and export it to Wavefront or Collada and I'm able to import it into my code ...
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1answer
428 views

Normal/Bump/Color created in Substance Painter doesn't appear correct in rendered model material

I created this material in substance designer and generated the normal map, bump map, and color map and imported it into blender with a node setup like such (note that I've tried both "Color" ...
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0answers
246 views

Strategy for Generating a Normal Map Projection From a 3D Model

I am still relatively new to Blender, and I am currently using it to model 3D vehicles for a 2D game. The 2D-rendering engine (Pixi.js) creates an illusion of depth using a normal map (as ...
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0answers
103 views

How to get geometry normals in cycles like in blender internal?

I need view dependent normal output in cycles, is it possible to convert things somehow?
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0answers
601 views

Normal map not baking properly--half of the model is baked in the wrong direction

New to blender, so I could be doing a lot wrong here. I've baked my normal maps in Cycles render, but parts of them are flipped the wrong way. There are awful seams on the tail and legs and I'm at a ...
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1answer
1k views

recalculate outside (normals) for all objects

due to a sketchup import half my objects are inside out how can i make a script (novice) that selects all objects (one by one?), put them in edit mode, recalculate outside (cntl n) and back into ...
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0answers
236 views

Normal map has artifacts and nothing is fixing it

So i modeled and sculpting a Ionic column and then retopologized it, and baked the normals, but there are colored artifacts in the map. I have tried increasing the Ray Distance, the Margin, the size, ...
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0answers
16 views

How to make a Jump Out Box with Constraint and Physics

I am making a Jump Out Box which want to prompt a Ball/clown from the box. I am currently using SkretchTo constraints on a mesh called "Spring". However, it is not as real as i expected. when i ...
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1answer
120 views

Make Normals “brighter”

I am currently looking for a way to make normals "brighter". The reason is that I was looking for a method to combine two normal maps and found this question: How to Combine two Normal Maps? I ...
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0answers
255 views

Whenever I bake a normal map via Selected to Active, it bakes the normals of both the high poly and low poly mesh

As the title explains, I'm trying to sculpt some details into a rock and bake them into a normal map. However, whenever I hit bake and check the image, I can see the low poly mesh has been baked into ...
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1answer
289 views

High poly from low poly with normal maps

I have some low poly models with nice normal maps. Is it possible to create high poly model based on low poly model and normal map? Subdivision surface doesn't work in this case, as it will create ...
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1answer
103 views

Flip default face orientation of object

I'm creating my first model and it's going fine so far. One thing though - I probably did something wrong in the beginning, and default orientation (normals) of faces is pointing inside the model. I ...
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1answer
2k views

Extrude Region (Vertex Normals) Extruding faces individually

I have an issue with extruding along Vertex Normals. The faces extrude independently. When I select the extrusion type with the proper faces selected: The faces extrude individually and don't stay ...
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1answer
494 views

How to edit normals so light is even all the way around for grass patches?

I've been trying to do this with the edit normal modifier, but I can't get it how I want, and that is because I don't full understand how to use that modifier. Maybe there is a better / simpler way ...
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2answers
687 views

How do I make normals visible on both sides of a model?

I am making a first person shooter. I am making assets in Blender and importing them to Unity. I made a building with an entrance and imported it. When I walked around it, the walls started ...
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0answers
47 views

How to find the distance from a face of one object to the surface of another object, along the face's normal

I feel like this has probably been answered, but I searched and couldn't find an exact solution. What I want is a quick way to take a selected set of faces on an object (or the vertices that make up ...
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1answer
194 views

Why normalized EXR renderings of surface Normals look different than PNG renderings?

I render surface Normals using Cycles and store the results in EXR format. The values in the EXR format are within the range of [-1, 1] meaning that I cannot ...
2
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1answer
924 views

How to calculate intersection between two planes

I'm dipping my feet at Blender SDK, and I'm trying to calculate intersection between two planes: Created a default plane in center, duplicated, rotated second, scaled first, applied transforms; but I'...
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0answers
238 views

Normals Inverted

The normals on the "cube"s, for some reason, appear inverted. They look inside out. I've tried recalculating normals but it still isn't working. I'm a bit of a beginner so what should I do? Edit: ...
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0answers
98 views

Blender Out Of Memory and Crashing

I'm trying to create a mountain scene in Blender and when i started adding some bump mapping blender started absolutely eating up RAM (quickly shooting up to the 8GB I have) and then running out of ...
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0answers
3k views

How can I bake a normal map with smooth, beveled, edges, when the low poly has sharp ~90° edges?

Background I have been trying to solve a seemingly simple problem with normal map baking in Blender 2.9 since last weekend. I wanted to make sure that I read and researched as much as possible before ...
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1answer
282 views

Normal baking issue, some parts are low res

I keep running into an issue where I'll have portions of my normals look fine, but tiny bits will screw up. Despite making a hi res model and cage baking, I still end up with super low res objects on ...
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0answers
69 views

Odd normals/texture issue upon export from blender

Having an issue with an object upon export. Everything looks fine in blender: But when I export it to another format, something is happening that displays textures on the incorrect side of faces (at ...
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3answers
6k views

how to flip normal direction in blender

I am following a blender beginner tutorial by blenderguru and he is me how to make a doughnut.so we wanted to make sprinkles and he said we needed to change normal direction to face inwards. in his ...
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0answers
458 views

Select only backfaces?

Is there any way to select only backfaces in edit mode in blender? When editing models for mods/games I've noticed a lot of the time there are double vertices for faces, and because of this simply ...
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0answers
24 views

Normal problem after baking

I've baked my normal from high res mesh and applied to a low res one, the result is here in the image. The shadow is weird and straight. How to fix this please?
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0answers
196 views

Missing detail on the object when baking normals [duplicate]

I have been having some trouble with normal baking . I am trying to make a die. After the bake is finished, I get the edge detail of the high poly mesh on the maps, but the numbers don't show up at ...
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2answers
577 views

Baked normal map comes out transparent

Blender 2.79 I'm trying to follow a Cycles workflow in baking out normals from a high poly mesh to low. Instead of a purple image with rainbow detail I'm getting nuthin. I've checked both meshes' ...
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1answer
1k views

How to render world-space surface Normal maps using Blender Internal?

This is a similar question to what I had asked before. But this time I want to render camera view-invariant (world-space) surface Normal maps using Blender Internal renderer. How can I do that? In ...