Questions tagged [models]

A representation of an object in 3D space.

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Question about model loading and textures

I recently learned how to load models with assimp, but I'm confused about something. Assimp loads normal and height vertices, but you can also load height and normal textures. So far, I've done shader ...
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1answer
28 views

How to use assimp textures with openGL/getting a better understanding

I recently learned how to load a model to openGL using assimp, but I am having trouble figuring out how to do lighting calculations on this model. Previously with my own created objects I would set ...
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How do I rotate a Fan Sprite with a very low resolution? (I dont know how to draw a rotated fan) [duplicate]

So, I have a fan image: Upscaled: And I want to rotate it for a texture Im working with, specifically a computer fan cooling a server box in a game model. Im having trouble getting a good look with ...
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1answer
55 views

2D engine design/architecture: transformations

Hello! I'm working on this hobby little 2D engine in JavaScript because I want to learn how all this things are implemented and architectured in general. Internet is full of resources but most things ...
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18 views

How to achieve highly detailed textures on buildings/architecture?

I have a bit of experience when it comes to 3D modeling, but something I never really wrapped my head around is environment modeling. You know, you walk down a road and you see lots of buildings, they ...
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1answer
29 views

Broken model matrix builder

I'm trying to setup basic render pipeline in Vulkan and am currently setting up the perspective, view and model matrices. The line that calculates the position in the vertex shader is this: ...
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61 views

Is it better to store whole levels in one model file, or maintain smaller reusable models and a custom scene format? [closed]

I've experimented with a few small game engines over the past few years and usually I end up keeping models separate as a .dae or similar file, then designing a scene file format and hand-writing the ...
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1answer
30 views

How to replace texture maps on models in a packaged game?

I'm trying to do an experiment. I'd like to do some object masking to the assets inside of a game, so during run time, when you are playing, they're texture maps are replaced by the masks. The masks ...
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1answer
47 views

How to calculate the transformation such that two points with different position, orientation and origins line up?

Let's say you have two different 3D Objects which both contain a node that is off center (not at the origin) and have an orientation. How do you calculate the transform for one of the object so that ...
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2answers
147 views

Add oceans to an earth model with only continents?

I have the following earth model, it only has continents: I wanted to add water but as you can see, some of the continents are now hidden due to the water sphere being more round than continents: I ...
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1answer
32 views

Why has my object detached itself from the parent?

I made an two objects in blender, animated them, and saved them. Firstly, when I reloaded them, half of the animations I created had disappeared, which is annoying itself but the real annoyance is ...
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59 views

OpenGL streching up geometry

I'm developping my own game engine in C++/OpenGL 3 but I've got some troubles with my geometry. Indeed, when I render something everything is weirdly streched up : By tweaking scale values we can see ...
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1answer
179 views

How can I cut a doorway through my wall at runtime?

I am working on a Unity project where I have 3 models: a stacked, rounded wall (think logs), a flat wall (think bricks), and a door. The door has an animation to open / close itself, and when it's ...
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34 views

Unity Model causes screen to go black

So ive been having this problem for a while and i have no idea whats causing it or how to fix it. Some objects in my scene causes my camera when looked at to turn black as you can see from the gif i ...
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38 views

MonoGame - Model not rendering properly

I'm trying to render a model made in Blender. I export it to .fbx and import it in the content pipeline, load and draw it, but it displays like this: And this is what it looks like in Blender: Code ...
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Glitchy model when import from maya to unity

When i import my model from maya into unity, i get a glitchy result. Info: -maya 2019 -unity 2019.2.01b -import in fbx -model has a skeleton I cant find a way to fix this problementer image ...
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1answer
95 views

OpenGL Fragment shader: not all fragments showing colors

I'm writing a simple 3D renderer and while the model loads fine, the colors are off. Quite a few fragments in the model show no color at all. Here is the render: The locations of the blacked out ...
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1answer
45 views

Unity - Blender models/animations showing gaps

As part of a college project, a member of my group has made some simple chests with an open animation. Importing these into Unity though, I instantly noticed there were gaps where the faces should be. ...
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2answers
316 views

How can you tell if what you're buying is legal?

In the past few days I've been browsing 3D asset marketplaces and repositories (I've been doing it for ages, but a lot recently). Many assets are paid for, others are free. In the past few days I've ...
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1answer
12 views

Trying to add my model's animation to the animator in Unity but it doesn't work?

I made an animation for a model in blender, then saved and imported it into Unity. In the preview, I can see the animation playing, but when I try to click on 'loop time' or to drag it over to the ...
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32 views

Unity - character model not blinking

I'm a bit confused as to what's going on, but I've just noticed that my imported character model never blinks during his animations. I currently have 3 animations - an idle, walk and jump. Every ...
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0answers
24 views

Import multiple models in runtime into Unity3d scene and make an animation sequence out of it

So, I have multiple models of ply file formats on my phone. When my scene is running, I want to let users import multiple models into Resource folder and create an ...
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0answers
17 views

How to load models with possibility to change textures in Three.js

I'm working on a game in Three.js where I have a few variations of the same model in blender. What I want to achieve is that I'll load the model once with all the material settings, but then I'll ...
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1answer
125 views

How are real world car characteristics translated to in-game?

I am just entering the world of game development, starting with the racing genre of games. Let me clarify that this question is not about car modelling or external detailing; it is about the way a ...
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1answer
32 views

Player object's model starts to shake after some time

I created a default scene in a new project and imported a model from Unity's asset store and then get this strange behavior of the model starting to shake for no reason after some time after starting ...
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1answer
79 views

Unity3D - weird model imported from blender

Also it's important to mention that I'm using LightweightPipelineAsset for Scriptable Render Pipeline (so I can use PBR graphs) Problem is that surfaces that SHOULD be drawn they AREN'T and the ones ...
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1answer
219 views

Why does the head of my ragdoll act like its about to fly off its shoulders?

The problem can be seen here: https://gfycat.com/LimpingMerryGermanshorthairedpointer Ive created my ragdolls by using the Unity ragdoll creator tool. To begin with, all the limbs of my ragdoll ...
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0answers
216 views

How can I blend meshes together where they intersect?

In a lot of my scenes I have things like this: and this: All the places I've circled are places where a prefab overlaps with another one or with the terrain. Is there any way to make those lines ...
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1answer
265 views

How can I reorder the order in which the vertices are in an .obj file?

Blender saves the files with the structure of All the vertices All the normals All the UV The game to which I want to import the model, only accepts the following order in structure 1 vertex 1 ...
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24 views

Built-in Terrain analogs search: is it worth to use imported 3d-model?

I think 3d-model is better than the built-in terrain-component in Unity when it comes to optimization. But when it comes to texturing terrain made in 3rd party 3d-modeller, how to apply resulting ...
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2answers
76 views

Adding large 3d models into Unity

I have a 3d model of a restraunt with several characters in it probably over a hundred objects. Whenever I try to import it into Unity Unity just loads forever until I force close it. How do you ...
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1answer
1k views

Can I use Adobe Fuse CC models in my commercial game?

I'm wondering if it's allowed to use Adobe Fuse CC models and textures in a commercial game? I use this software to get good shapes of character and then use Blender to modify the body or renew ...
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1answer
668 views

Should LOD models be used in mobile games?

LOD models are widely used in PC and console games, to optimize performance by reducing the vertex count and texture size for distant objects. However, I'm having a harder time finding out if they are ...
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1answer
78 views

How to store 3d transformation in a game?

I am curious what is the best strategy to save 3d transformation of a model. Here are the few choices I think about: 4x4 matrix 4x3 matrix(skip the bottom row of a 4*4 matrix) Dual quaternions with ...
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1answer
72 views

What is better: One texture per model or assigning multiple models to one single huge texture?

If I'm making a low-poly car pack of multiple cars for mobile platforms, should I: Make a large texture like of 2048x2048 and unwrap all the models to it Make separate, smaller (256x256) textures for ...
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1answer
100 views

Why is there no standard 3d file format that saves models as (collections of) primitives?

I have been looking around for a file format that saves models as a collection of primitives (Boxes, Spheres, Cones, Cylinders, etc.). After some research, I came to the conclusion that pretty much ...
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1answer
108 views

How can I make the terrain infinte?

I am making a game in Unity 5 in C# and I need to make the terrain infinite. I have tried to make it infinite but it just keeps spawning the terrain too much times and then the game crashes. Does ...
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1answer
481 views

Exporting a simple mesh from Blender for reading in Assimp

I'm trying to create some simple assets for using in my rendering engine. What I'm trying to do is to generate simple low poly models and then importing them into my application using Assimp. I can ...
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24 views

Unity / How can i prevent my model from blinking when it doesnt have normals?

Somehow the light which is shining on a moving model is making it "blink" (its like getting very dark and then very lit again. The model has no normals. (unity import settings: normals: none) Is ...
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1answer
108 views

Model texture flipped?

Im making a custom Wavefront .obj loader and the images loads but the texture is flipped. What is the problem? here is code and a image. ...
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1answer
88 views

Licensing classic (vintage) car models for game

I know that I cannot use real car models in a game without permission. However, I am interested in a classic (vintage) cars from era before 1950. Some of the companies no longer exist, or were bought ...
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1answer
2k views

How can I apply a mesh collider in Unity to an entire imported model rather than a single piece?

I have a series of models from Blender I'm importing to Unity as .blend files and I need mesh colliders applied to each one. What I'm finding is that with any model that is constructed of multiple ...
2
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1answer
318 views

How do I shade / model low poly smooth surfaces that come to sharp edges?

Consider this model of a tank turret: The following model has smooth, round surfaces that meet at sharp corners. This is achieved with a high number of subdivisions and marking certain edges as sharp ...
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2answers
133 views

How can I create and load models with additional information?

I want to create game similar to original DOOM in Unity (using 2017.2). I'd like to make it possible to load entire levels from file, but I don't really want to write my own level editor that would ...
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1answer
132 views

Why are Monogame models tied to effects?

When I load a model in Monogame using ContentManager, the model contains effects on each mesh (mesh.Effects). This is confusing ...
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3answers
8k views

How to increase MagicaVoxel size limit?

I need to increase the size of the field you make models in by at least 20. It really doesn't make sense why you cannot go beyond 126x126x126 because in the MagicaVoxel viewer, there are sample models ...
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1answer
81 views

How to hide fbx files for commercial release

I see that all commercial games I've played never expose their fbx files - usually, they archive the fbx files into PAK file or BIN file. For example, Torchlight 2 use OGRE3D for their Graphic Engine,...
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1answer
40 views

In unity, some part of mesh doesn't show only in play mode

This is screenshot of not playing mode. You can see the the speedloader and bullets inside of the revolver. And this is when playing mode. As you can see, I can see the speedloader and bullets in ...
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0answers
47 views

XNA Further faces are shown through closer faces

I'm trying to draw a 'axis' model named 'XYZ'. The problem is that it is rendered wrong (screenshot below). You can see that the blue face can be seen through the red face. The black, green and red ...
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1answer
160 views

Customizable 3D “growing” Avatars within Unity [closed]

I'm working on a project that allows the user to pick their personal avatar (change faces/body settings/etc), and then have child/adult versions of those. Ideally, they will allow an age progression ...

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