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

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1answer
143 views

What causes still objects have lines in them when lighting is being changed? [duplicate]

First, here is what I'm talking about (I changed the contrast to make it more visable, since it's not really visible in still images): Ingore the chat box, I was spamming buttons to see which one ...
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0answers
41 views

Rotation of a point around axis using quaternions

I have a simple processing program to rotate a point around arbitrary axis but it stops after a bit. I'm trying to get full rotation of the point around the axis. import org.apache.commons.math3....
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1answer
25 views

Have an object rotate on its Y axis towards mouse position [duplicate]

I've been looking at some other answers to similar cases but not every one used different methods, and a lot of them were not what i needed, so here's my question : What's the best/standard way to ...
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0answers
36 views

sphere to sphere interpolation

I am at the moment trying to come up with an scheme that interpolats between a current state and a desired state. Each state consist of an 3d coordinate and a rotation matrix, orienting an camera ...
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8answers
11k views

Best open-source 3D game engine for a first person shooting game? [closed]

What is the best opensource 3D game engine suitable for 1st person shooting game? This engine should be script-able with lua.
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1answer
74 views

Unity 3d shooter tutorial animation

I'm following this tutorial. I cannot get even simple animations to work. Here's a very simple case that was supposed to work but did not: Add an animator component to the 'player' prefab Create an ...
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5answers
5k views

Where do I start if I want to independently learn game graphic design? [closed]

I want to learn how to create custom graphics, not use freely available resources. But I have been looking around for articles or tutorials on how to start with 2D game design in general, and I can't ...
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1answer
2k views

JMonkeyEngine in Eclipse

I wanted to try the JMonkey engine, so I downloaded the JMonkey sdk, but I don't want to work in the JME IDE, I would rather like to work with Eclipse, since I already started a game project there, ...
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0answers
22 views

Extrude 3d polyline

Let's presume I have a 3d polyline, for sake of simplicity, constructed of 2 line segments, with given 3d coordrinates P0, P1 and P2. I need to extrude it by given thickness, which should result in ...
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3answers
203 views

3D collision avoidance: finding the updated velocity vector (outside the “collision-velocities” cones)

I am trying to understand and implement the mechanism of a fully 3D collision avoidance (steering behavior) system for flight movement (six degrees of freedom), currently focusing on circumventing ...
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1answer
119 views

Top down 2d orthogonal view with 3D elements (Unity)

I've decided to give Unity a go with my project. I want to create a 2d RPG perspective world, but with elements of 3D mixed in. So for instance, I think I might make trees and grass 3D, for this to ...
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1answer
44 views

Adding quaternions is useful?

I'm working with quaternions and matrices 4x4 and 3x3, and I have a doubt. I think that adding and multiplying quaternions is the same that converting the quaternion to a matrix, do the operation and ...
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0answers
24 views

How can I fix the face/normal direction of my 3d mesh in blender/UE4?

So I am playing around with UE4 to make some concept art for a game. I extracted the model I wanted to use from the game's files and imported it into blender. It's a tank with 4 parts: the hull, the ...
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1answer
42 views

How to “properly” display a 2d sprites in a 3d environment?

I would like to show "the classic" missile lock viewfinder (the target symbol) of a war aircraft. So the target symbol must follow the enemy, and became red when "lock" it. So i thought simply to ...
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0answers
30 views

how do i drop a block into grid?

I am trying to drag a block and place it on a grid in unity5. The grid can be empty or already occupied. How do I handle the dropping of block ? I have a 2D array of blocks type, where: class ...
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0answers
33 views

Defining camera/view space

Im working on expanding my camera class, but having trouble defining camera/view space in the manner of this diagram: What Im trying to achieve is to define the camera as a true object much like a ...
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1answer
174 views

How can I generate 3D noise in chunks for terrain?

I'm trying to create a voxel engine that uses marching cubes to create smoothed terrain. I have most of it implemented, but I'm struggling with how I should create a noise function in three dimensions....
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1answer
61 views

How do animation works with mesh?

I'm currently developing a game using OpenGL and my dev has run into a small problem. I'm having some problems understanding how "array of vectices works with animated object". For example, if we have ...
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1answer
24 views

How do I take 2D ballistic trajectory planning and apply it to 3D?

I am currently using this formula speed = sqrt((gravity.y*target.x^2)/(2*cos^2(angle)*(target.y - target.x*tan(angle))) provided by DMGregory as an answer for my question here to determine the ...
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5answers
7k views

What's the newest trend / method for terrain rendering? [closed]

The last time I checked in on terrain rendering, ROAM was the new hotness. Yes, that was a long time ago. I liked ROAM a lot, though, because it was extremely simple to program, and gave pretty ...
0
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1answer
49 views

Visual cues in a full 3D game to help the player to identify the location of each object

I am working on adding some visual cues to the player to help identify where each objects are in 3D. In many space games, there is usually an indicate on the edge of screen that reflects the direction ...
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0answers
28 views

Inverted FXAA Shader

I'm trying to use an existing FXAA shader which works but when I try to run it the filtered image is inverted. http://www.geeks3d.com/20110405/fxaa-fast-approximate-anti-aliasing-demo-glsl-opengl-...
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1answer
49 views

OpenGL: Generating a single square with a Quad Strip

I am currently trying to create a terrain generation system (for my 3D game) with OpenGL 2.1. The way I am doing it requires the creation of a massive 2D square that consists of multiple smaller ...
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1answer
37 views

Rotate smoothly object to angle (Y axis) of the collided object

Well, let's say I have two planes, one which I am moving, and another one that I collide with, that has a different y rotation. I want to make that, once both planes collide, the plane the user ...
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1answer
32 views

Send OpenGL video flux via UDP [closed]

It is possible to send the video flux of an OpenGL desktop app via UDP on Linux ? I looked up FBO and off-screen rendering but I still can't figure out how to extract the video flux and send it. I'm ...
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2answers
1k views

How check if an arbitrary given mesh is a single closed mesh?

I'm building a space game where it is allowed for the player to insert his own mesh to be his spaceship. The problem I'm facing is that a ship must be a Polygon Mesh. The player will then be able to ...
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1answer
66 views

Implementing black map in a 3d game

I am struggling with designing black map and fog of war in a 3d game. Black map is the area that player hasn't explored (completely unknown), while fog of war is the area that player has explored and ...
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3answers
9k views

How to disable play automatically on animation in Unity3d 4.5.1

Where is the option to disable the 'Play Automatically' function for animations in Unity3d 4.5.1. In previous versions, there was a button under the Animation tab to disable the play automatically: ...
63
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7answers
15k 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 ...
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0answers
20 views

Change the player 3d model in runtime

Suppose I am playing a zombie game, and a zombie bites me on my arm. So, to stay alive, I have to cut off my arm, right? Or maybe you are playing a FPS and an enemy player shoots you at your hand. ...
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0answers
71 views

Texturing Cubes

How can I texture a cube that is able to rotate in x,y and z direction in pure Java? Here is what i have tried: package main; import java.awt.Color; import java.awt.Graphics; import java.awt....
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2answers
880 views

Get water flow direction vector from water normal vector

Im stuck developing an important detail of my game water: Making it flow downwards! Considering a typical 3D world in wich water tends to go towards gravity g=(0,-1,0) , and having the normal of the ...
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1answer
94 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 the part that is in front of the model Freddy so that I can decide ...
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0answers
35 views

Combining skydome and fog

I am developing a 3D game in DarkBASIC Professional, and I have a theoretical problem with the combination of skydomes and fog in general. My question is not specific to a programming language, so I ...
29
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6answers
8k views

Why do we use 4x4 matrices to transform things in 3D?

To translate a vector by 10 unit in the X direction, why do we have to use a matrix? We can just add 10 to the mat[0][0], and we got the same result too.
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0answers
26 views

Best way to do discontinuous animation? Or: Best way to animate a character with a jerky center of mass?

I am using Unity and need to know how to use it animation system properly for… well let me describe it below. In this game I have this big 3D block-like character that moves in an unusual fashion ...
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4answers
4k views

Solving for velocity in the x/y/z axes?

In a 3D environment I have an object with a displacement x that I know I need to traverse in a given time interval. I have the object's heading and elevation and I want to figure out the distance the ...
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1answer
56 views

Existing game to virtual reality game? [closed]

What kind of existing game can be taken as a good source for a 'virtual reality' game, specifically, the one you can play with any 3D VR glasses? Why do you think this particular game or these games ...
3
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1answer
24 views

When to use multiple parts for a mesh, and when to build detail in?

I am always running into the decision whether or not to make a mesh one connected mesh or to add small details as just separate parts to the model. Is there a best practices for this? Does it matter ...
0
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1answer
77 views

Why does invoking glm::refract function return NaN?

At the present time, I make a simple raytracing project and I encounter an issue : When I invoking the glm::refract function, it returns me a vec3 with "NaN" values. However, my input data seems to be ...
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1answer
89 views

Unity sidescroller with 3D objects/environment. Should I create a 2D or 3D project?

I'm looking to make a side-scroller in which the camera and all objects can only move in the x and y directions. However, I'm going to have all objects and environments as actual 3D models. Is it ...
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2answers
35 views

Object has its heading stored as Euler angles. After it makes a turn, how do I calculate the new angles?

Assume said object is an aircraft. I store three angles (in degrees) that describe where it's headed: yaw, pitch and roll - in that order. Let's say the plane is flying vertically, upwards. The angles ...
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0answers
82 views

Filling polygons with texture/color using SDL2

I recently went on to making a 3D software renderer using SDL2 and Rust as a learning project. It has been going quite well, it can draw lines, polygons, and cubes. Now, it can only display ...
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0answers
36 views

Move/Rotate 3d multiple objects w.r.t. to one another in libgdx

I have two blender objects in .g3dj format. Below is the code : private void createBaseArm1(){ // Now load the model by name from asset folder baseArm1 = modelLoader.loadModel(Gdx....
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0answers
36 views

Unprojecting a 2D triangle

I am looking to describe triangle in world space, given that the following are known: Two of its vertices in screen space (or rays in the world) One of its vertices in world space (the right angle ...
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4answers
9k views

Should I learn 2d game development before 3d? [closed]

I'm an iPhone app developer. I want to get into iOS gaming. The question is-should I start with learning 2D like Cocos 2D or Corona SDK before learning 3D gaming like Unity? I'm more interested in 3D ...
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2answers
51 views

Hide building roof & Hide faces/vertices depending on world location

I'm currently developing a small game for my own enjoyment and I've ran into a problem. As you probably know many third person games (such as Runescape and XCOM, for example) hide the roofs when you ...
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2answers
65 views

Efficiently calculating best nearest sphere from a point in 3D space

I have a point in 3D space and a number of spheres (anywhere from 0 to thousands) at random locations in said space. Each sphere has a property that falls off in a smooth gradient from the centre to ...
0
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1answer
124 views

Unity 5.3 C#: How to disable multiple game objects with one collision?

I'm making a top down perspective game with a gunner automatically moves on a pre-set path, and you shoot and destroy targets to remove barriers. The idea is that you control the bullet's direction ...
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0answers
31 views

How to find visible planes in a world of boxes

I have a world where each object is a box: Each box has position x, y=0, z, dimensions width, height, depth. The boxes are never rotated. Each box is composed of 5 planes (left, right, front, back ...