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

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3
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1answer
67 views

How do I create a half-ortho half-perspective projection matrix

I've been trying to make a formula for the projection matrix where your vertical axis is projected orthographically but your horizontal axis will have perspective to it. So the view frustum would ...
5
votes
3answers
452 views

3D Object not drawing in Monogame

I'm quite new to working with 3D objects. I'm currently trying to get one to load in Monogame. The object itself was imported into Blender and exported as an fbx file (which was the only file type I ...
0
votes
1answer
172 views

How can I rasterize 3D triangles in software?

I am creating a 3D software renderer, and I have a wire frame cube rendering. Now I am working on solid color rendering and I am wondering what an efficient algorithm for shading the contents of the ...
0
votes
2answers
250 views

Array of 3d points, construct point cloud or surface (OpenGL)

I have an array of 3 dimensional point objects, I can manipulate the input into this array into any configuration I want, for example, it could be a vector of floating point numbers, a vector of ints, ...
5
votes
2answers
808 views

Are polygon normals really shadeable?

Garry's Mod has a copy-protection trap that shows this error: Unable to shade polygon normals It made me wonder if such a problem could ever actually exist. Can polygon normals be shaded? Is a ...
8
votes
2answers
463 views

Render 3d object to 2d surface (embedded system)

i am working on an embedded system of a sort, and in some free time i would like to test its drawing capabilities. System in question is ARM Cortex M3 microcontroller attached to EasyMX Stellaris ...
3
votes
1answer
5k views

Blender 2.6: Changing the Resolution (Rings/Segments) of a UVSphere's

I know that it's possible to change the resolution (I mean the rings and the segments) of a UVSphere by pressing [F6] and changing some arguments. But what if I add a UVSphere to my canvas at first, ...
0
votes
1answer
61 views

glm Z coordinates are flipped

I am trying to render a 3D model using OpenGL. And for the projection and transformation matrices, I am using glm. I've got my model on the screen and it works just like I intended it to; except one ...
2
votes
1answer
2k views

Unity3d wheelcollider falling through terrain

I have created simple project with 3D car and terrain. I have added 4 Wheel Colliders on model wheels. But when I run project wheels falling through terrain. Before run: After run: I am sure that ...
1
vote
2answers
192 views

Unity 3D - Confine a gun rotation within certain degrees

I am having troubles making my gun rotate up and down, and have limits, for example, I want the down limit to be 0 degrees, and the up limit to be 90 degrees. Currently I can't figure out how to ...
0
votes
0answers
62 views

Bounding Box for 3dModel

I've tried using the code from this post How do i create bounding boxes with XNA 4.0? to create a bounding box for a 3d model, but my bounding box is way smaller than my model. My model isn't scaled ...
2
votes
3answers
146 views

Unity - Check if object is facing Vector3 coordinates

I am having a hard time figuring this out, I want to have objects that move around randomly, and when they get new coordinates to move towards, face them, and then move. Here's explained: Target ...
1
vote
2answers
146 views

How can i handle collision response in a voxel game?

I'm making a voxel game with cubes - like in minecraft - and I have figured out how to check wether the player is colliding with a voxel, I have just done it by checking wether the player is within a ...
1
vote
1answer
75 views

Efficient dynamic character shadows [SW Rasterizer]

I am working on a SW rasterizer for a quarter-century old console (think sub-100 MHz RISC CPU, no dedicated 3D HW, couple megs of RAM) and am approaching a stage where I will be adding dynamic ...
8
votes
6answers
2k views

How come the 3d graphics and animations of MMORPGs are usually worse than non-online 3d games? [closed]

I have noticed that in general it seems like the 3d graphics and animations for MMOs and MMORPGs seem not as seductive and polished as the graphics for normal, non-online 3d games. How come this is ...
0
votes
2answers
1k views

OpenGL : Suggestion on handling collision detection and vertex data?

I was thinking how to do collision detection in my OpenGL application and came to conclusion that I should keep two copies of my geometry data. 1)First copy : Only for OpenGL rendering purposes.This ...
1
vote
0answers
311 views

Moving an object (pong paddle) along the x,y axis in 3d-space with mouse/touch

First of all: Sorry, my English isn't quiet good, I'm very new in 3D and I'am using JMonkeyEngine. What I would like to do?: A 3d pong game and I want to control the paddle with the mousecursor ...
4
votes
2answers
957 views

Unity3D Get collision without having Rigidbody

I am trying to detect a collision between 2 objects, each one of them has a Collider component. In the script I have the method OnCollisionEnter(Collision other) where I want to check if the collided ...
7
votes
1answer
514 views

Tiling perlin noise seamlessly, but without repeating to generate an infinite 3D world

I have been working on a 3D game in java using LWJGL for a while now. I am trying to make procedurally generated infinite 3D terrain that is generated around the player. So far I have: 3D terrain ...
1
vote
1answer
79 views

DX11 Mixing 2D and 3D

So I am somewhat new to working with DirectX rendering, and I have done some 2d and 3d work. I am planning on working on a new application where I will be rendering a bunch of 3d scenery, and then ...
16
votes
4answers
5k views

Is C++ “still” preferred in game development? [closed]

I am a 2D Game Programmer.Some programming languages which I am good at are C,Java ,C#. I also know Actionscript 2.0,3.0 and some javascript. I'm interested in learning 3D Game programming. So far ...
0
votes
1answer
1k views

Unity3D Get object size in order to be used in Vector3 coordinates

I have a plane in Unity in 3D project, and I want to get its boundaries so I can use them in random function for getting Vector3 coordinates. Currently I am trying like this GameObject ground; void ...
0
votes
0answers
39 views

3D Picking: Doesn't Work Consistently

I'm trying to implement a 3D picking function that at the moment simply calculates the ray being sent from the camera after the user clicks the mouse on the window. It kind of works well when the ...
3
votes
3answers
295 views

Portal View/Projection Matrix near plane

For RenderToTexture/Camera based portal rendering, the basics seems simple enough. However, with a free camera, most of the time it is going to be looking at such portals at an angle: Now a ...
0
votes
0answers
71 views

UV texture mapping with perspective correction works for 50%

So, I've been trying to get the UV texture mapping down with perspective correction. The triangle rasterization seems to work. The interpolation seems to work too. It's just the perspective ...
0
votes
1answer
86 views

How to understand kind of matrix/world from implemented math operations?

i'm a newbie in 3d programming, and i approach for the first time this argument. I try to make some changes to an existing 3d object viewer, to better suite my needs. This object viewer is jsc3d. I ...
1
vote
0answers
66 views

Cutting a 3D mesh with a 2D shape

I have a 2D image that i want to use to cut into a 3D mesh while leaving it closed (basically cut straight through it, and close it by generating vertices in both places it cut, front and back, to ...
0
votes
1answer
155 views

What is the correct approach to implement multiplayer in a game? [duplicate]

I'm developing a game and it is intended to be a multiplayer game. I have experience in writing servers and clients in Java, but the game is written in C++. The server will be written in Java for ...
0
votes
0answers
457 views

Rotate model to face direction it's traveling in 3d with scenekit and swift - Boids implementation

I am implementing a boids simulation using Swift and Scenekit. Implementing the simulation itself has been fairly straight forward however I have been unable to make my models faces the direction they ...
0
votes
0answers
286 views

How to apply transform matrices retrieved from FBX

I'm trying to import a skeletal animation using FBX SDK. I followed this article, managing to load all the needed data, but when I try to display the animation the mesh falls apart. My knowledge of ...
2
votes
0answers
172 views

Texturing Objects in OpenGL

Using OpenGL tutorials found here, I constructed an .obj file loader as well as a texture file loader using SOIL. I have an issue with drawing a textured object. (Shown here) Assuming I created the ...
8
votes
3answers
2k views

How do you make Direct3D work in a browser?

I've come across games that are 3D that are playable in a browser. They require a plugin to be installed to work. I guess the plugin creates a D3D window inside the browser. How would I go about ...
24
votes
4answers
8k views

What's the difference between mesh and a model?

Which one is created first? For example if a team worked on a graphical asset of a car, what would be a model and what would be a mesh of the car?
3
votes
2answers
810 views

3D zooming technique to maintain the relative position of an object on screen

Is it possible to zoom to a certain point on screen by modifying the field of view and rotating the view of the camera as to keep that point/object in the same place on screen while zooming ? Changing ...
1
vote
0answers
55 views

Broken UVs for Maya/Mudbox model

I have tried using the automatic mapping in Mudbox and Maya, neither worked sufficiently, I was still experiencing polygon overlap. I tried mapping separate limbs but I came to the same problem, this ...
4
votes
4answers
745 views

How do I resolve a sphere-triangle collision in a given direction?

I am trying my hand at game physics. I understand that the basic way to pull back a sphere when it collided is to negate the penetration distance: // If collided... // `distance`: distance form ...
-4
votes
1answer
59 views

How to I Create My own 3d modals in unity5? [closed]

How to I Create My own 3D modals in unity 5? Actually,I don't know how to create a 3d modals in unity 5.If anyone is know, PLZ tell me...!
-1
votes
1answer
61 views

Perspective projection? [closed]

I am trying to write an elite like game and I kind of understand the maths behind it but it would be really helpful if someone could explain it.
1
vote
0answers
157 views

How do I create this type of mixed 2D/3D character model?

I'm interested in how this little Lively Hamster Flash game's character is modelled and animated. The head seems 3D. The back always shows a black outline, so I assume it is 2D. Is this a ...
1
vote
1answer
150 views

Does triangle-plane clipping in 3D always produce a triangle?

When you clip a triangle against a plane, will you always get a triangle out? Are there perhaps cases where you don't get a triangle out of clipping it against a plane?
17
votes
2answers
5k views

Best technique to create oldschool (fake 3D) racing game?

What would be a good approach to develop the render system for an oldschool type racing game that uses a pseudo 3D scenery, like for example Outrun or Lotus Esprit Turbo Challenge? There's an endless ...
2
votes
1answer
706 views

Unity 3D - Rotating an object in relation to its velocity

I am currently trying out Unity 3D and I've run into a problem. The problem is I have a car that moves along a road and then when it reaches a corner I would like it to turn the corner and have the ...
5
votes
2answers
2k views

3D isometric depth sorting

How is it possible to depth sort tiles and objects in an isometric environments without any limitations? I've been researching this for a while now and there seems to be no publicly available answers ...
0
votes
1answer
155 views

glDrawElements and Texture Coordinate

I just move on from Immediate Mode and try Vertex Array method using glDrawElements and I got the texture is mess. How to draw the texture correctly? This is a piece of my render code ...
2
votes
1answer
58 views

Track two objects on the screen at the same time

I want to keep two objects visible at the same time. My current idea is to calculate a bounding box that contains the two objects and then zoom and rotate the camera so the whole box is visible, is ...
1
vote
0answers
78 views

Can I render 3D objects in Ray Casting engines?

I was gathering some information on the glorious Ray Casting technique. As far as I've understood it's not a complete 3D rendering, and that's why objects and NPC's are often displayed as simple ...
0
votes
0answers
102 views

Export as .dae, but retain color (all for Unity)

So, I was trying to learn some basic Unity stuff (I am a noob in all respects), and in my early research, I discovered something amazing: I can import 3D meshes that I make into Unity! So, I ...
2
votes
2answers
488 views

Lasers in 3D space game

I am creating this little 3d space shooter and am somewhat unsure on how to implement the laser beams. I'm thinking about something along Star Wars and the like where mostly you shoot rather short ...
3
votes
4answers
520 views

How to enter a level when touching an object

I am working on a project in Unity 4.6.1f1 and I was wondering how can I make a cube touch another cube to go to the next level (the image below)? ! EDIT: I made a script and put it on the purple ...
0
votes
1answer
168 views

Center a 3D model to cursor's position

I am having a hard time understanding how to go about this. I have a 2D game with some 3D models in it. I want to move a 3D model to where the mouse cursor is currently at in every frame (In other ...