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Questions tagged [models]

A representation of an object in 3D space.

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1 answer
42 views

How can I convert .obj files into a 2D array of [x,y,z] coordinates and color values?

I have a cool 3D model I want to use, but for this program I'm working with, I need it in array form, with each point's coordinates and color value. I've already voxelized the model using this tool, ...
Dinuka Herath's user avatar
0 votes
1 answer
40 views

What transformations are performed under model space?

I am struggling to understand the relationship between model transformation, model space, and world space. I understand that model transformation transforms an object from model space into world space....
CheeseS's user avatar
4 votes
1 answer
229 views

What are good ways to make modular corridors and interiors of buildings?

I would like to make modular corridors and some other objects in my level, to make it easier to construct them. Do I separate walls, floor, and ceiling or make a tube module? How to avoid seams ...
V S Vuca's user avatar
2 votes
1 answer
143 views

Where is the illusion of a moving camera perspective coming from in this rotatable cube model?

Just for fun, I had been attempting to build a model cube in vanilla JS that can be moved and/or rotated. What I was going for was the simplest possible representation (so, no adjusting for ...
Quack E. Duck's user avatar
3 votes
2 answers
682 views

Should I model with quads or with n-gons?

Model 1 — all 4-sided polygons Wireframe Gun Model 1 Model 2 — polygons have arbitrary number of sides/vertices Wireframe Gun Model 2
Paneer Handi's user avatar
1 vote
1 answer
2k views

Is it legal to use the exact same proportions as Minecraft's Steve character model in software without permission?

I am developing a game (or a game engine) that includes a low-poly human-like character model that follows the same proportions as Minecraft's Steve character model. Specifically, the model consists ...
Luke 10X's user avatar
  • 113
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0 answers
46 views

Visualising quaternions for key frames in an editor

I'm working with 3D models from an existing game with its own proprietary file formats, however the way they work is pretty standard: Skeleton is defined as a set of bones, each bone either has a ...
nigelg's user avatar
  • 1
1 vote
2 answers
145 views

What dynamic range of numbers do games typically use?

Most of the numeric quantities used in games (aside from integers for counting or indexing objects) are single-precision floating point. This is IEEE format, which allows for numbers as big as 1e38 ...
rwallace's user avatar
  • 125
1 vote
0 answers
313 views

Unreal 5 and Maya 2020 not matching scale despite both defaulting to centimeters

Effectively 100 units in Maya set in centimeters = 1 unit in Unreal Engine set to centimeters I've been in a school project last year and am about to embark on another on UE5, and I'd like to find out ...
VegetableStu's user avatar
0 votes
1 answer
210 views

Model is oriented correctly in the Unity asset browser but flips 180 degrees when added to the scene?

I have modeled two pinball flippers in Houdini. I exported them as OBJ files and imported them into Unity 2021.3. They look correct in the asset view: They also look correct when I open them with the ...
Matt's user avatar
  • 375
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0 answers
45 views

Is there a performance difference between modeling a complete scene in Unity with assets vs importing a complete 3D scene from SketchUp?

I've worked with 3D modeling (architectural projects) using SketchUp for 4 years. I'm trying to import the models into Unity and then add the components I want (like colliders, scripts interacting ...
cElu's user avatar
  • 1
0 votes
1 answer
100 views

Characters not applying avatars correctly

I am trying to get different models to go through animation cycles in Unity. The first four models are from Mixamo. Does anyone know why my characters end up like this (lodged into the ground) when I ...
tak's user avatar
  • 1
1 vote
0 answers
159 views

How can I make yarn visuals similar to those in "Kirby's Epic Yarn"?

I'd like to know how I can achieve the effect seen in Kirby's Epic Yarn: All characters use "yarn" as outline which moves to simulate movement etc. How can such an effect be achieved? Could ...
Progga's user avatar
  • 111
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0 answers
169 views

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 ...
Stdugnd4ikbd's user avatar
0 votes
1 answer
577 views

Level Creation - How to achieve seamless race tracks?

I'm aiming to make a racing game in Unity. Please take a look at the image provided below, and suggest me the best technique to achieve something like it. (Keeping the performance as optimized as ...
Haseeb Ali's user avatar
0 votes
2 answers
49 views

Unity approaches for automatically setting pivots of each sub-gameobject at base center

I'm working with some free models online, which don't seem to have pivots properly set for any of its submodels. Is there a universal pivot fixer or something if not... The center seems correct for ...
ina's user avatar
  • 294
0 votes
1 answer
409 views

Unreal Engine - Materials Import as Gray

I imported the .fbx files from here: https://www.cgtrader.com/3d-models/industrial/other/big-warehouse-pack into an Unreal Engine 4.27 project. All the meshes load in properly, but the materials are ...
Quantum Guy 123's user avatar
0 votes
0 answers
133 views

LibGDX getting model roll

I'm working on a 3d game in LibGDX, got help on here with my model rotation. Worked great. But now I'm dealing with the model's roll, and it's not behaving as expected. It's controlled by: ...
Whimsical Hubris's user avatar
1 vote
2 answers
150 views

How can we generate 3D architecture in a racing game's background procedurally with respect/similar to the real world?

In the last few days, I jumped into searching is there a conventional/convenient way to build 3D architecture quickly, most likely by some accessory software like CityEngine, BIGEMAP, or google maps' ...
charmetei's user avatar
0 votes
0 answers
140 views

Check if a triangle is back-facing in a 3d model

I'm creating 3d models with an algorithm, but i have no idea how to make all triangles in the mesh face the right direction, so some faces are facing inside the model. The list of vertices is sorted ...
André Kuljis's user avatar
0 votes
1 answer
415 views

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 ...
Tudvari's user avatar
  • 751
0 votes
1 answer
740 views

Why do Dynamic Bones disconnect natural flow if they have ANY child gameobjects?

I've been having an issue for months now where if I have a dynamic bone chain that splits off in any way (ie. any of the chain's bones have child gameobjects), then the flow of the dynamic bone chain ...
Willixir's user avatar
0 votes
1 answer
242 views

Textures not working on glTF Embedded Models. Picture Explains The Issue. (GODOT ENGINE)

I wanted the tree to look a bit more stylized, or have a bit more to it than just flat planes. Yet when I tried to put this texture on it, it just looks completely wrong. Is this a model issue or a ...
Phoenix's user avatar
  • 19
2 votes
1 answer
2k views

How do I add materials to a glTF model in Godot Engine?

I'm using glTF Embedded files because I was told they are the best files to use with Godot, so I got a pack of a bunch of really lovely trees and other things to use in my game. But when I import it, ...
Phoenix's user avatar
  • 19
0 votes
0 answers
94 views

How to model the double jump in Super Mario using projectile motion

So the single jump in Super mario games follows a curved trajectory of the formula s = s0 + v0t + ½ at2. The double jump in mario consists of two different parabolas combined. I know that the max ...
Ranya's user avatar
  • 1
0 votes
1 answer
223 views

How to make one material on object with many parts inside?

I have a weapon witch have many parts, it also have many materials. Do I really need to make it like that? It's like about 8 mats! :(
Dead Lord's user avatar
0 votes
1 answer
148 views

When importing a character to Unity, textures and meshes don't appear

I'm relatively new to Unity, and I'm left with doing this as my last step towards my task - importing my animated character to a game engine and program the movements. The problems that I have ...
lucutes's user avatar
  • 11
0 votes
1 answer
837 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 ...
Julk's user avatar
  • 23
0 votes
1 answer
382 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 ...
Eduardo G.R.'s user avatar
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0 answers
384 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 ...
Paul's user avatar
  • 165
0 votes
1 answer
97 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: ...
Karlovsky120's user avatar
2 votes
1 answer
129 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 ...
lazylama's user avatar
0 votes
1 answer
252 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 ...
Nighley's user avatar
1 vote
2 answers
183 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 ...
aybe's user avatar
  • 773
0 votes
1 answer
192 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 ...
Ronnie Lightweightbaby Coleman's user avatar
1 vote
0 answers
67 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 ...
MacEquette's user avatar
1 vote
1 answer
2k 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 ...
Raven Dreamer's user avatar
0 votes
0 answers
234 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 ...
Logan's user avatar
  • 25
3 votes
1 answer
269 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 ...
Rish's user avatar
  • 181
1 vote
1 answer
100 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. ...
DustyShinigami's user avatar
4 votes
2 answers
384 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 ...
Zebrafish's user avatar
  • 189
0 votes
1 answer
44 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 ...
CraftyMaelyss's user avatar
0 votes
0 answers
104 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 ...
DustyShinigami's user avatar
0 votes
0 answers
79 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 ...
MrRobot9's user avatar
  • 321
1 vote
0 answers
52 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 ...
Dawid Zbiński's user avatar
0 votes
1 answer
256 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 ...
SNag's user avatar
  • 101
0 votes
1 answer
56 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 ...
Val's user avatar
  • 123
1 vote
1 answer
920 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 ...
StuckInPhDNoMore's user avatar
1 vote
0 answers
574 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 ...
Ryan's user avatar
  • 153
1 vote
1 answer
1k 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 ...
Evil prohack3.0's user avatar

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