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Questions tagged [blender]

Questions about the use of Blender, the open source 3D modelling software, in the context of game development. Questions involving issues strictly with Blender itself (e.g. modeling) are off-topic here and must be posted on the relevant Stack Exchange site, Blender.SE.

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Collision: Simplify Multiple UCX Objects

Unreal Engine 4/5 Is it absolutely necessary to create multiple UCX collision objects in my 3D program? I have a very small, simple room for the player to walk around in yet I have to create 18 ...
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Normals not correct on creation? [closed]

When creating a subdivided cube to create bones for a dragon, the normals seem to be not facing the correct way, which flipping and recalcuating the normals does not do. Do I need all the lines to be ...
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Mesh appearing 'see-through' when exporting from Blender to UE4 [duplicate]

The right wing of the dragon model is appearing see-through upon exporting, anything to double check for solutions? Thanks
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Rig Looks Scrunched Up in Unity?

I've completed my animations for a first person rig of mine, just the arms, and the animations worked perfectly in Blender. When I exported them for Unity however, the result looked as if my rig was ...
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Model normals change when importing from Blender to Unity

I created an Object in Blender and it looks fine in it. These are the vertex normals: These are the surface normals: However, after importing in Unity, the emission color looks entirely distorted: ...
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how much margin is needed for lightmap UVs in relation to the object's scale?

How much margin do lightmap UVs need to prevent light leaks in UE4? Is there a way to calculate the margin from the object's scale or its lightmap resolution in UE4?
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Thin gaps in shadows of FBX models imported into Unity

I recently have started making my game in Unity and making models to go alongside it. However, I export my models as an FBX and am able to successfully get them into the game, but unfortunately it ...
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How do I fixed this messed up Unity rig?

I bought a rigged model from CGtrader.com and I imported it into unity. The import didn't give any errors but when I rigged it for humanoid animation it's arms twisted. I tried moving around the bones ...
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Help with configuring the humanoid rig, hands disconnected

I am working on rigging my first unity character made in blender with the Rigify addon. I converted the rig into a unity ready one with the rigify to unity addon and imported my model but I'm having ...
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Animation problems when importing from Blender to Unity [duplicate]

In Blender, these animations were created: https://www.youtube.com/watch?v=bfIznO321J8 To allow the robot to move with the board, his feet have been hooked to an empty object that moves with the board,...
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How to build level in Blender using assets from Unity?

There are already models for level creation that are used to create different levels. I want to use them to create a new level and I want to assemble the level in Blender. But if I just import the ...
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Character creator and clothing, how to make the assets?

By going inside some game files of big games, it seems a lot of armors, when equiped on the characters will straight out delete their body beneat. for example, if you wear an helmet, underneat it, all ...
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Godot some faces of imported from Blender model are darker then other

I tried to export some scene from Blender to Godot as .fbx, .dae and .glb, but every time it ...
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How to import files with texture in Blender?

I downloaded a Blender model from Google and it came with two folders: a "source" folder where is located the .blend file and a "textures" folder with all the image textures. ...
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Why is my blender 2D ring so pixelated when imported into Unity?

I created a simple ring in blender, yet when I import it into Unity it is horribly pixelated and choppy looking. I want the ring to look perfectly smooth. In blender, I selected the "shade ...
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Importing checker texture from blender 2.93 to unity 2020.3

I have a checker texture made in a blender 2.93 which is created in such a way, Material properties - new material - and on that material, using two texture images and adding a checker texture node ...
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Why is Unity applying different settings to an object copied from another?

I am trying to create some turrets, I have my Blender model which I import into Unity just fine. This model is a double turret with identical turret models for top and bottom. I have to apply a -90Z ...
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Blender loop cut over multiple objects

I have a following object in scene which consists of multiple faces (the orange selected ones). As you can see from the scene collection tool it's actually multiple objects selected at once. I would ...
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Using FBX Exporter messes up materials of VRM?

I am trying to export a VRM into an FBX to edit in Blender. To do this, I have installed UniVRM to import the VRM, and FBXExporter to export it as an FBX. This almost works great. However, I have an ...
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How to take opacity animation from Blender into Unreal blueprints?

Like the GIF above, I made Skeleton Anim and Material Opacity Anim in the DCC tool. However, FBX file format doesn't support opacity anim, so I have the task of rebuilding opacity anim in the UE. To ...
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Two neighbouring wall sprites have visible connecting egdes (generated in Blender)

I use Blender to model walls. I render 2d sprites of these walls in a (gaming) isometric perspective. My problem pertains to the "edges" of the 3d wall: On both left and right ends of the ...
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How to debug UVs exported straight from Blender

I have a model in Blender 2.93. I am exporting it to JSON using landon I am then importing the JSON into a WebGL rendering layer and feeding directly to shaders The JSON UV export is an array of ...
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Why Generic Rigs won't matching? ( Unity )

1 part - Blender I made a character with animations in Blender. When importing in Unity, I decided to split the Armature and the Model into different FBX files. This is how we get 2 files: ...
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Unity - Arm goes backwards instead of back down when blending animations?

I'm putting together an animation tree which is layered, and it seems to get between two animation states it blends the arm backwards over the top of the head rather than back down. Is there anyway to ...
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Unity - How to export equipment properly from Blender?

I'm trying to work out the Blender-to-Unity workflow for equipable items. At the moment, I've got a character animated for running, idling, jumping, etc. Now, I want to add equipment for him. I ...
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Unity is smoothing my low poly models, how do I control this?

I started a new universal pipeline project and have modelled a really quick low poly character in blender. It stays quite blocky in blender, but when dropped into the unity project its really highly ...
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Using generic animations with different weapons in Unity/Blender

Working on a game in which players can upgrade their weapons. I've animated a character to hold a weapon, but I don't want to create a unique animation for each weapon. How do I create a relationship ...
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How to combine and export multiple NLA tracks of 2 armatures (Blender) to Unity?

As per first experience I created multiple tracks (and also "added" more animation to first tracks thinking I edit them but instead I just created more tracks for same animations) for 2 ...
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UVs Distored When Importing Mesh?

The first image shown below is of part of my mesh in Blender, and the second is of that same part of the mesh in UE4. For whatever reason, the UVs are distorted and glitchy once imported into UE4. I'...
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how to change a 3D character and other assets in-game

I want to make a game in which the 3D character is customizable. For example, there will be a selection of clothes that the character can wear, and when the player clicks on one of them, the character ...
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USDZ horizontal plane position wrong

I'm exporting an object from Blender to an FBX (or GLTF/GLB) file to then convert it in Reality Converter. Inside there, everything looks good, all animations work and the object is positioned on 0 0 ...
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How do I convert a voxel model to a low-poly mesh with texture mapping that accurately mimics the coloured voxels?

I've created a model in MagicaVoxel (A) and I want to use it in Godot. I imported the model into Blender, but then realized that it's using a very high polygon count for such a simple model. I found ...
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How can I recreate a material from blender in Unreal engine

I'm new to unreal and I am having trouble finding a way to reproduce the materials for a mesh in blender in unreal. It's a simple material but I can't find a way to reproduce the color ramp ...
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Parts of the FBX getting flipped upon import from Blender to Unity

I am trying to import a race track into unity, which I have modeled in blender. The problem is some objects of the model are getting flipped, to be specific all the curbs on the sides of the race ...
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How to detect all vertices within collision Area?

Using collision detection algorithms such as MPR (Minkowski Portal Refinement), GJK (Gilbert–Johnson–Keerthi distance algorithm), you can calculate the penetration depth in the collision. For 2 mesh ...
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"The mesh of Body.003 has 1 sub meshes but the renderer is using 4 materials. Your mesh should use the same amount of sub meshes as materials."

I'm trying to import a Mesh (VRChat avatar) from Blender into Unity. This mesh which is failing to import properly into Unity is separated in Blender as Head, Hair, Body. It looks great in Blender but ...
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Pink Objects/Sub-Meshes (NOT MATERIALS)

Using URP. Any object I import into unity from blender (fbx), the sub-mesh that comes with it are pink. All the materials are fine, I can put the object in my scene with a material and it looks normal....
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What settings should the Root bone have in Blender for Unity?

What orientation should the root bone have in Blender to behave correctly in Unity when using the Root Move?
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Putting a material on a fractured model

I have a square model that has been fractured using blender's cell fracture. I also have a material that I want to apply onto the broken pieces. The only problem is that the material needs to be ...
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Why does Unity show dark regions on a model with animation created using Blender?

I sculpted a model in blender, and I want to import that to Unity. When I import just the model(without animation), Unity shows as is. However, when I attach armature to the body and automatically ...
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How to model walkable houses for Unity

I created a house in blender which is a big cube with the upper face intended and pulled down back to the ground. The floors are other boxes and windows and doors are cut out using a boolean modifier. ...
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Problem importing Blender materials into Unity via FBX

I've created a simply low poly house in Blender (2.92) that I have imported into Unity as an FBX. Materials (simple colours) are all set up in Blender. Initially this was all working fine. Colours all ...
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Part of model in Unity is inside out but not in Blender?

I've downloaded this asset and it looks perfectly fine in preview, and even in blender. But when I import it in Unity, one of its shoulder is inside out, even after making all faces double sided. I ...
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How to see real world size in blender

I want to make a .stl file to be 3d printed through blender, but I don't know how I would see the real size. Does anyone have any solutions? Also, if you turn on smooth shading, will it actually be ...
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2 votes
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Best Practices for Random Enemy Animations?

For various animations for NPCs (getting hit with projectiles, shooting, dying) I've been creating 2-4 animations each in blender before exporting. Should I be doing this inside Unity with Animation ...
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How to edit a Rigged 3D Model without Ruining the Rig?

I have some rigged 3D models that I want to use. They came as .fbx. and sometimes I want to make some minor edits such as merging/moving/removing some vertices or something of that nature. The Problem:...
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Attempting to remove extra "edges" from truncated icosahedron lead to excessively global concequences

I need a truncated icosahedron. Blender lets me do that with add -> mesh -> math function -> regular solid (assuming the extra plugin is installed.) So far so good. However, the mesh that ...
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1 vote
2 answers
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Exported FBX to Monogame doesn't translate all meshes

I'm taking a crack at a minecraft clone in Monogame, and I am trying to get my model to render as it's shown in Blender 2.9.1. When I look at the model in Blender, it looks great. When displaying in ...
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Reconciling rotations with Unity and Blender (-360,360)

I'm currently working with Oculus integration trying to export headset (and eventually controller) position and rotation data to a CSV for later use in Blender. My issue comes from the way Unity (or ...
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1 vote
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Humanoid Rig Animations Not Playing Properly

Although I have seen a few questions that are similar to my own, none had specific or clear answers that actually solved the problem, so here I am. Just recently, I have imported a rig from Blender ...
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