Questions tagged [3d]

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

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2answers
68 views

Find if one player is visible to the other

Two players (p1 and p2) are standing in a 3D space, represented by points (x1, y1, z1) and (x2, y2, z2). Player 2 is holding a light source, pointing in the direction given by a normalised vector (xn, ...
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0answers
65 views

Convert bones by bone matrix

I have a 3d-models from old game. They have the following structure: ...
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1answer
41 views

How to find the largest bounding boxes in 3D array to cover all cells?

I'm trying to generate colliders automatically from a 3D array where each cell represents a constant-sized piece in a world (like a voxel). I'm trying to optimize the number of colliders, so I want to ...
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1answer
3k views

How to implement the seek steering behavior in Unity3d?

Following this tutorial: Understanding Steering Behaviors: Seek, I tried to add seek and steering behavior to my Unity prototype but it's not working this is my script. The cube does not steer it just ...
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1answer
122 views

What is the difference between Character Modeling and Level Design?

I'm thinking of either focusing on character modeling or level design, but I'm not sure what the differences are. Do companies consider them as separate jobs because I don't know that either. My ...
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2answers
4k views

How to implement translation, scale, rotation gizmos for manipulating 3D object's transforms?

I am in the process of developing a basic 3D editor. It uses OpenGL for rendering a 3D world. Right now my scene is just a few boxes of different sizes and I am at the stage where I want to be able to ...
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2answers
200 views

Clamp camera view angles relative to moving object

I have a camera attached to an entity that moves in a circular pattern around a fixed center position. I am attempting to clamp the rotation of the camera such that it can only look inward toward the ...
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2answers
150 views

3D affine transformation (rotation) mimicking Mode 7, Java 2D

I watched videos of games using mode 7 like Outrun or Space Harrier and I want to make a game which imitates this classic graphic. I was inspired by Notch's Prelude Of The Chambered too. After ...
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2answers
62 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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3answers
2k views

Need advice concerning the creation of open world game in Unity 3D

I just wanted to ask for advice those being an expert in Unity 3d and overall in game industry about how it is possible to create an open-world game by means of Unity 3D, that is, I already tried to ...
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2answers
187 views

Game assets are images or 3D models

I am new to game development and I have created simple games with javascript and SFML. Those games are 2D and there I used images as my gaming assets. I was trying to be familiar with OpenGL like 3D ...
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1answer
533 views

Java game object pool management

Currently I am using arrays to handle all of my game objects in the game I am making, and I know how terrible this is for performance. My question is what is the best way to handle game objects and ...
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1answer
1k views

Unity3D C# Drag object smoothly on it's x axis that's already bouncing

In my scene, I have a bouncing ball that collides with a cube. On each collision the ball returns to the same height. How can I get the ball to smoothly move along the x-axis by dragging my finger ...
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2answers
3k views

Toon/cel shading with variable line width?

I see a few broad approaches out there to doing cel shading: Duplication & enlargement of model with flipped normals (not an option for me) Sobel filter / fragment shader approaches to edge ...
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1answer
171 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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1answer
58 views

Handling different renderers Y axis direction in a single engine

I have an engine that uses either three.js (3D WebGL rendering library) or pixi.js (2D rendering library) depending on the game. ...
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1answer
286 views

Is my 3d terrain moving?

I generate a 3d isometric terrain with the help of badlogicgames. I pass a perspective camera to the spriteBatch projectionMatrix, but when I move my player (perspective camera follows my player) it ...
68
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7answers
35k views

What to consider when deciding on 2D vs 3D for a game? [closed]

How much "harder" is 3D than 2D in terms of: Amount/complexity of the code Level of math skills required Time involved in making art assets Original title: How hard is 3D game development versus 2D?
31
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1answer
9k views

How do you turn a cube into a sphere?

I'm trying to make a quad sphere based on an article, which shows results like this: I can generate a cube correctly: But when I convert all the points according to this formula (from the page ...
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1answer
112 views

3D Perspective issues

My team is currently developing a 3D Sidescroller game and we encountered some issues regarding the whole in-game perspective of the levels. The levels are composed of 3D modeled corridors which are ...
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0answers
51 views

How to make backgrounds for 3D games? [closed]

I've started to study game design and I couldn't really find an answer for this one. Let's imagine a small level with a nice (non passable) background in the distance. The background has mountains, ...
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2answers
213k views

How to merge two objects in Blender

What I've Done I created a Cube object with Subdivision Surface modifier in order to model a spehere. I created a cuboid object looking like a angled, longish baton. What I Want to Do I want to ...
14
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2answers
3k views

How to gain accurate results with Painter's algorithm?

A while ago I asked how to determine when a face is overlapping another. The advice was to use a Z-buffer. However, I cannot use a Z-buffer in my current project and hence I would like to use the ...
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0answers
621 views

How to create skeletal animation data for a skirt?

Please think of this in an engine-agnostic way first, and then we can talk about specific engines. In my game, I have a 3D character which is wearing a hakama (think of it as a long pleated skirt). ...
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1answer
268 views

What type of 3D engine is the original Quake engine?

What type of 3D engine is the original ID Software Quake engine (1996)? What is the correct terminology? Is there a particular simple term that describes this type of engine? E.g. the original ...
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3answers
1k views

Box2D in 3D space

I am trying to combine a perspective camera with a box2D world using libgdx and I am having some problems getting the two to synch up. I want to do this so I can use 3D models but keep the game in a ...
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1answer
146 views

How do 3d game engines draw this pattern?

I am doing a small project, where there is a 3d engine, however I do not know how to draw something if it is like the image below. Usually I would draw from farthest back to closest. But here there is ...
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1answer
53 views

Logic at a low framerate with interpolated rendering at higher framerate

It takes too much processing power to do game logic on every rendered frame (60fps), so what if I made my game save frames? It would actually calculate important stuff 20 times a second, and the ...
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2answers
2k views

Blood splatters on a terrain

I am trying to create blood effects, where the characters being killed are on an uneven terrain. The simple way is to instantiate a prefab with texture, which uses a plane mesh, on the raycast hit ...
8
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3answers
6k views

How does an AAA graphical workflow look like? [closed]

So this is how I understand it: An artist models the thing in Zbrush or Mudbox. It now has 10+ million polygon. He exports it in Zbrush as a normal map + low poly model. (this works?) The model now ...
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2answers
393 views

Is clipping done before or after projection?

Is clipping applied after projection or before? How can it be applied after projection when a vertex is behind the camera and projected therefore mirrored? At this time I clip the triangle before ...
8
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1answer
11k views

How can I make 3D games in 4K that are a few megabytes?

I would like to make 3D games in 4K that are a few Megabytes (MB) in download size. Is there a way to use 3D Vector Graphics in games to reduce the file size ? Or is there any other way to achieve ...
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2answers
1k views

Is it good to use 24 fps animation in 60 fps game?

Is it normal to use 24 fps animation in 60 fps game or it will hurt perfomance or create bugs?
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2answers
4k views

Catmull Rom Spline - Constant Speed

Given the equations found in the answer here: Determine arc-length of a Catmull-Rom spline to move at a constant speed How would one A) Apply this to a 3D Catmull-Rom Spline, and B) write A out ...
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1answer
313 views

First Person Shooter Character in Unity - Meshes Clipping When Close to Body?

I am working on a game character using Unity. I'd like it to be playable in 3rd Person and 1st Person depending on what the user chooses (switchable in game whenever ideally). I've worked on and read ...
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2answers
2k views

Help to understand positive rotation direction on left/right handed cord spaces

I began to study 3D math and noticed about left/right handed cord spaces and clockwise/counterclockwise rules. I understand that left-handed use clockwise positive rotation and right-handed ...
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1answer
121 views

In a game such as Star Wars Galaxies, Planetside, and Warcraft how would server-side collision/terrain navigation work?

I'm trying to learn some advanced topics in multiplayer networking for fun and education, specifically how server-side collision/terrain navigation works in MMOs and/or any online game. Personally, I ...
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2answers
169 views

Draw text in OpenGL ES 3D game?

I am making a game using OpenGL ES 1.0 and I want to keep player score. So I need to draw text dinamically. What is the best approach? Some library, textures, bitmaps? I tried to use TextView but ...
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1answer
379 views

Game Modeling good practice regarding quads and ngons

I'm asking myself if using quads is really the better practice instead of using ngons (for flat surfaces!) when it comes to game modeling. I often read this and saw models that look like this (96 ...
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0answers
41 views

Does it make sense for a view matrix to have a scale?

When building a view matrix from an SRT matrix multiply, examples (here and here) only ever compose it with a R and T. Does it make sense to have the S component be anything other than the identity? ...
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0answers
33 views

Efficiently drawing a batch of meshes?

I was playing around with some isometric ideas, I want to create fairly large maps with a couple of Z levels, much like the older X-com games. I figured I am probably way better off to draw the quads ...
0
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1answer
121 views

Vertex with too many connections in Maya

After some mesh editing in Maya I got one vertex with a lot of connections. Please help, how can I fix it? Don't even know how to google it.
5
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1answer
546 views

Can a sprite be rendered with thickness in Unreal Engine?

Is there a convenient way to have a 2D pixel art image with clip transparency (not partial transparency) rendered with thickness in Unreal Engine? Paper2D does exactly what I want, except it's a flat ...
0
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1answer
306 views

Using 3D models in an 2D Game in libGDX

In my libGDX 2D RPG-Game (like Zelda or something) I want to display some items as 3D-Objects. Since I'm using an OrthographicCamera like this: ...
28
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1answer
15k views

Orienting a model to face a target

I have two objects (target and player), both have Position (Vector3) and Rotation (Quaternion). I want the target to rotate and be facing right at the player. The target, when it shoots something ...
0
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1answer
313 views

Why is my ground so dark?

I wanted to add a ground so I can know the position of a helicopter in the world. But the ground appeared in a weird way: The ground had the following texture: This is the code: ...
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0answers
205 views

How do I make a shaped fluidSurfaceActor in UDK?

I'm trying to make a fountain for my level in UDK. I've made the base of a fountain by using a Cylinder build and now I'm trying to put water in it. I want to use ...
1
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1answer
473 views

Project 360 video on the inside of a iso sphere / polygon sphere

I'm creating a game in Unity. I have a iso sphere or polygon sphere, and I want to project a 360 video on the inside of the polygon sphere. I've learned thow to put a 360 video on the inside of a ...
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1answer
238 views

In ROBLOX, how can I check what is in front of me?

In ROBLOX Studio I need to check what part is in front of the model Freddy. I need to set the variable called thingInFront to ...
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1answer
2k views

Ray-plane intersection to find the Z of the intersecting point

I have a rectangle in 3d space (p1, p2, p3, p4) and when the mouse rolls over it I need to calculate the exact Z of the point on the rect, given the mouse ...

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