Questions tagged [3d]

3D refers to three dimensional space where coordinates are represented with X, Y and Z values.

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38 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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How can I apply my camera to all graphics objects?

Is there a way to have the camera be applied to all objects? Can you have the camera effect objects that where made with glVertex3f(); This is the fourth time I ...
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Workflow to have character look like : Tokyo ghoul:re [Call to exist]

I am looking into a lot of different software and now that I got my head around most of them, I was asking mysel if someone knew what has been used to create the characters in the game I mentionned. ...
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Unexpected changes in Ai population

I've been trying to do my first evolution script. I want my population to learn to walk in 3d space. I am getting issues with the movements and the mutation. In my script, they evolve based on certain ...
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1answer
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Unity3D in WebGL the Player doesn't have animations

I using Unity 2019.2.14f1 to create a simple 3D game. I want to build the project for WebGL, but, even though the player has animations on Unity, in the web the Player doesn't have animations even ...
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1answer
25 views

Downsides to automatic UV unwrapping

I have seen several software packages that offer auto UV unwrapping as an option. My question is why would you ever manually UV unwrap if there is an automated tool to do so? Are there any ...
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23 views

Unwanted rotations with transform.RotateAround

I didn't tough i would have issues with this, but unfortunatly I did. I have a Character (which is more a pile of cube) with a body, a empty GameObject for each leg attached to the body with a join ...
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2answers
83 views

Can I use the 2d physics engine in a 3d game (or viceversa) in Unity?

This is entirely for performance. The 2D physics are less expensive, but I require 3D for some scenes. I never need both at the same time. I know you can have 2D with an orthographic perspective in a ...
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Prefabs x coordinate of position is getting mysteriously updated after destroying and reinstantiating them

Project brief I am trying to make a gamified version of to-do where the player enters tasks and is rewarded with points and a tree grows with the progress. What I am trying to do I have a list of ...
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33 views

How to have a point light with no falloff in Unity 3D?

Does anyone know of a good strategy to make point lights with no falloff, eg. anything in the radius of the light will be 100% illumination while anything outside the radius will be 0% illumination. ...
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122 views

Unwanted angular velocity in unrelated axis (rigidbody simulation)

so real quick I'm simulating 3D rigidbody dynamics. This is what I have: ...
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1answer
32 views

TMP Square Characters when adding Chinese

I'm trying to implement Chinese language in my app. But I'm seeing nothing but squares. I've tried to create from file and hex. They can't be added. For example, there are 3000 letters but only 17 are ...
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Unity 3D Image Distortion

I'm trying to make a 3D tour for cardboard. I'm putting my 3d image inside a sphere with a shader but I've noticed this problem. And the middle of the image is looking kinda wavey and distorted.
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What is a good algorithm for generating a linear regression of positions in 3D space? (for getting the direction of a thrown object in VR)

I'm trying to get throwing to feel right in my VR game. I don't plan on actually using physics to do this; my idea is to accurately determine the lateral direction of the throw, then move the object ...
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1answer
188 views

How to handle forward/backward movement in an oblique top-down view

I'm making a pseudo-2D top-down game, where my assets are actually 3d but I use an orthographic projection to introduce more depth. I saw a picture of how the game "Enter the Gungeon" was actually ...
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213 views

Creating 3D water on Unity for iOS/Android

I want to render an ocean where players can change waves’ amplitude in real-time. Initially, I would render rolling waves (see picture). As the amplitude increases, I need to transition the rolling ...
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1answer
86 views

Can I put real monuments like white house, statue of liberty in my open world game? [duplicate]

I'm currently working on open world game. But I am confused about one thing that, is it ok if I put real monuments and sculptures like white house, statue of liberty etc. in my game? Please help if ...
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31 views

RayCasting picture noise render method

I'm creating a RayCasting tutorial on github (click here to access it) and I'm following a lot of tutorials, implementations and other render methods in the web. One game made with it is the "Prelude ...
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1answer
105 views

To split or not to split large 3D objects?

I have a fairly simple question for which I'm seeking guidance: Should large 3D objects be splitted into smaller ones? By wide, I mean an object that would be as wide as a game level is, below is ...
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1answer
116 views

How do I implement the parallax effect in 3D graphics?

With a perspective projection matrix and camera system already in place, I have a scene with a small jet fighter flying high over a wide and deep canyon with many cliffs and rocky surfaces; these are ...
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Self-illumination vs luminance

I'm using a graphics format reading library which has an enum called "MaterialLuminanceMode". There are three luminance modes for materials available: Self-illumination, which I interpret to mean "...
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1answer
82 views

How to create a 3D grid in Unity3D?

What is a easy way to generate a 3D "hollow" and square grid around a central point, more like a cube (that can vary in size), with each cell being evenly spaced (based on a value)? Note: I know how ...
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1answer
69 views

Is Unreal engine or Unity better for high graphics low file size mobile games? [closed]

My objective of learning game development is to make a 3d relatively high graphics mobile game but that should be in 150 mb. I don't know should I start with unity or unreal engine. I found that ...
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1answer
50 views

3D Collisions - Walking below a slope pushes me through the floor

Here's a really short video (less than 30s) of this issue : https://www.youtube.com/watch?v=JrKbpTY8cMU When I move the player towards a slope (the player is below it), it pushes the player inside ...
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32 views

Script Component not Being detected by Vuforia's Default Trackable Event Handler Script

I have a Script Component named Start inside a GameObject named StartSpawn and I am trying ...
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1answer
90 views

How do I get an object to rotate in world space via RigidBody.AddTorque?

I'm getting really discouraged because I can't seem to figure how how to rotate my object via Rigidbody.AddTorque like it is on a figurative global turn table rather than a local turn table. Another ...
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1answer
197 views

Why is my A* algorithm is not taking future obstacles into consideration?

I am fairly new to programming, unity, and game design in general. I am following an old A* unity tutorial by Sebastian Lang and the algorithm he used doesn't seem to be completely accurate in terms ...
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1answer
53 views

Model gets distorted when rotating the camera

I'm currently developing my own 3d graphics engine and I'm having a hard time figuring out why my 3D models gets distorted when rotating the camera around. This is my projection matrix. I'm following ...
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1answer
55 views

Draco encoder lossless, is it possible?

I'm trying to use the draco library in a Unity project. I've a lot of obj files with models of a person in different positions. When I encode these models with the ...
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48 views

Least expensive way to build a forest in Unity3D?

I'm a programmer with some experience in Unity. My objective is to make a game (or maybe just a virtual space you can walk around in First Person perspective) featuring a forest and to make it look as ...
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1answer
88 views

How to duplicate Blender glow and reflection effects in Unity?

I am trying to make my game more interesting by making a background with this NEON tunnel made of glowing lines. Since I am not a good 3D artist, I choose to hire some freelancers, and they made a ...
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24 views

Monogame - How to correct “brightness-additivity” while using Alpha-Blend-State

When using GraphicsDevice.BlendState = BlendState.AlphaBlend; in monogame following happens: Is there any avaible method to keep the color brightness ...
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80 views

What is wrong with my collision detection?

I am trying to create a collision detection system between block using this code: ...
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1answer
111 views

What to do with collision detection?

I am able to get collision detection (CD) into my game but... what do I do with it? Do I push the player back to the last location? Something else? I am programming the game in C++ using the Irrlicht ...
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19 views

Keep my 3d player from jumping if he's not on the Ground [duplicate]

I'm making a 3d game, and I have only made games in 2D before, but i have used blender before too. My player can now walk and jump, but he is not limited to only jumping of the ground. In 2D, you ...
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1answer
205 views

When do you use StartCoroutine and when Invoke?

I am confused. Both seem to do the same thing: Delay a method. Both Invoke and StartCoroutine allow you to call a method by name (string). ...
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1answer
26 views

3D title Rendering in Maya For babylon Js Game Engine

I created a 3D title in Maya and applied color through lambert and rendering with mental ray. Problem is when the coder is rendered in the game engine, it is looking very sad. The colors are faded ...
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1answer
92 views

How can I snap player-constructed objects in a 3d world together?

I m trying to build minecraft type of game with more complex builds like that of fortnite, so I wanted to start with the best practices i have to follow to create those builds. the blocks in ...
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18 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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24 views

Inclusive vs Exclusive voxel bounding box

Let's say I have a few voxel at (1,1,1) and (2,2,2), I would like to know if would be better to consider that the smallest box that contains both voxels is either (1,1,1) to (2,2,2) or (1,1,1) to (3,3,...
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1answer
72 views

Soft Body rendering from OBJ model

As part of my master thesis I have to do an softbody simulation. I 'm using Bullet Physics engine. I'm trying to render softbody, create from Meshes, with Shaders in OpenGL but the object doesnt ...
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2answers
87 views

OnTriggerEnter With First Person Controller

I'm working on an FPS for my first time. I'm creating a simple terrain and instatiating 15 cubes on my terrain. (This works fine). Each cube is named "cube" and has a static trigger collider. Here's ...
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22 views

Unity creating 3d clothes for game character

I am trying to make a system where players can change out their clothes with others if they like, and even layer up clothes such as covering a shirt with a jacket, then an armored vest. I have ran ...
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0answers
18 views

Correct primitive to start with for modified cone shape

I am very new to Maya and trying to make a Nikon F camera from reference images. I can't quite wrap my head around how I would make the shape on top of the camera because it is essentially a square ...
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28 views

Is it efficient to use colliders on UI canvas in Unity?

Basically I have a task where the player will be able to drag an object (as UI Image), and place it inside a bag (another UI image). What's the best optimized way to do so? As I researched, I do not ...
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1answer
157 views

How to preserve Arcball rotation in c++ OpenGL?

Firts of all want to say that I've already searched for other people's answers here as same as Google and didn't found anything about it there. Also tried some others arcball implementations but none ...
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31 views

Unity3d:Detect a collision between an image and a sphere

So, I just realized, an image with BoxCollider2D wont detect any collision with Sphere with <...
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1answer
67 views

How can I export a 3D model with keyframes to use in Blender?

I'm currently trying to export some 3D data and load it into Blender, but I've encountered some problems at the time of processing the meshes. They all have keyframes (nothing too complex, just ...
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0answers
38 views

Adding spread to velocity Vector3D

I am trying to give an object a velocity spread (e.g. shotgun bullets or particle effect). ...
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0answers
30 views

Generation of a 3D loop the loop with minimal steering required

How would I generate a surface which resembles a loop-the-loop shape like this one described here? After triangulation of the surface, lets say I start at one end with some initial velocity which is ...