Refers to games or art assets built in a three-dimensional space, where all positions have X, Y and Z coordinates.

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8answers
8k views

Where to start? (3D Modeling) [closed]

I'm looking for a good resource to start learning 3d modeling. I'm looking for something that starts with the basics (e.g. terminology; what are quads, triangles etc.) before/while going into the ...
4
votes
5answers
2k views

How should I start playing with 3D? [closed]

One of my hobbies (aside programming, of course) is 3d modeling (completely amateur, using 3ds MAX) and I'd like to mix programming with 3d modeling (what a marriage!). So I've read a little about it ...
4
votes
4answers
3k views

what is the simplest 3d software for unity? [closed]

Ive heard a lot about Daz studio, Poser, Maya, K-3d, Anim8or, Blender, and all the rest. My question is which one is the best choice in terms of simplicity and quality. price is not an issue really. ...
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votes
4answers
1k views

Do 3d assets cost a lot more than 2d?

I'm planning to create a game on my own and will most likely hire an artist in the future. I just want to know if making a game in 2d will a lot cheaper than making it on 3d? Here's my plan: If it ...
4
votes
3answers
1k views

How does 3D games work so fluent provided that each mesh's size is so big?

I'm surprised to find that each mesh takes at least 5-6 MB, how can a 3D game be so fluent when there are hundreds of models? I'm expecting it will simply go out of memory or something else that ...
4
votes
2answers
522 views

Repairing back-facing triangles without user input

My 3D application works with user-imported 3D models. Frequently, those models have a few vertices facing into the wrong direction. (For example, there is a 3D roof and a few triangles of that roof ...
4
votes
4answers
1k views

How do you organize your game files and classes? [closed]

Although it isn't necessary to exclude things like graphics and audio packages, I'm most interested in the organization of the folders for classes that deal with AI and game state. I'm thinking ...
4
votes
6answers
372 views

Why doesn't it seem to be any development in the field of 3D VR gear, especially with regard to gaming?

I remember that way back around 1995, there was this big craze with VR in the media, a whole bunch of (mostly mediocre) games labeled as "virtual-reality-interactive-movie (...)" were published. If I ...
4
votes
1answer
184 views

What is faster — full size with AA or reduced to screen size with no AA?

I wonder what is less expensive resource-wise: Drawing a usual modern 3D game scene with some geometry at 100% scale, with some AA; Drawing a downscaled scene (to fit the screen, but originally a ...
4
votes
2answers
376 views

How do I use D3DXVec3Unproject with D3D11?

I'm having a small issue with D3DXVec3Unproject. I'm currently using Direct3D 11 and not 10, and the signature for this function is: D3DXVECTOR3 *pOut, CONST D3DXVECTOR3 *pV, CONST D3D10_VIEWPORT ...
4
votes
3answers
2k views

List of 3D libraries based on WebGL [closed]

Is there a up-to-date list of WebGL libraries or articals with comparison? Until now I heard only three.js and GLGE.
4
votes
4answers
1k views

How to find two perpendicular lines given a single plane

Hey guys, i was wondering how i would go about finding the perpendicular lines relative to a surface normal. For instance say i have (0,0,1) the expected output would be (1,0,0) and (0,1,0). What ...
4
votes
1answer
343 views

3d level creation for small teams

What sort of tools and techniques are available out there for 3D level creation? In particular for small teams where you might not have the time and resources to make your level creation tools from ...
4
votes
3answers
518 views

Seamless transition between planet and space

I have been curious about how this kind of seamless transition from space to planet can be implemented. It would be nice if someone could explain this as I can't really wrap my head around the ...
4
votes
3answers
1k views

Quaternion dfference + time --> angular velocity (gyroscope in physics library)

I am using Bullet Physic library to program some function, where I have difference between orientation from gyroscope given in quaternion and orientation of my object, and time between each frame in ...
4
votes
1answer
341 views

Running geometry shader only once

(Unfortunately couldn't find the answer myself) Does a neat way to cache the geometry shader results in Direct3D10 or OpenGL exist? (preferably Direct3D10). I'm building my geometry based on texture ...
4
votes
1answer
697 views

How to fix odd artifacts at the edges of textures in DirectX 11?

In my DirectX 11 project, when I have textures they have odd artifacts at the edges. I've seen it before and searched online, but I can't find any DirectX examples that I can get to work. You can ...
4
votes
2answers
363 views

Can polygon normals really be shaded?

"Unable to shade polygon normals" is a copy protection trap in Garry's Mod. I am wondering if the game developers put random cryptic graphic terms up or it is really a problem in graphics. It the ...
4
votes
3answers
480 views

What resources are available to read and share pyglet code?

I am a Python programmer (I know the ins and outs decently well), and I have dabbled with Pygame. I want to make 3D applications and games, and so naturally I've been looking at OpenGL. pyglet uses ...
4
votes
5answers
433 views

How to rotate an object around world aligned axes?

I have a Vector3 which has an euler angle for each axis. Usually, when I want to create a rotation matrix I will use functions such as D3DXMatrixRotationX passing the respective angle from my ...
4
votes
4answers
729 views

Face-Click Detection ( like in Minecraft )

I am working on a box-based game engine like minecraft and I was wondering how to detect the "clicked face" when placing blocks. I have created this engine in C++ ( DirectX / D3D ), C# ( XNA ) and ...
4
votes
1answer
736 views

Efficient physics and collision detection for RTS

I'm thinking about writing my own RTS game and while I'm more or less clear about how the game engine should work, I need some directions as to how to implement physics and collision detection. Now, ...
4
votes
3answers
578 views

Model in Maya looks strange, what went wrong?

I am modeling a tank and I don't know what key I've pressed, but now the object in Maya is looking very weird. Does anybody know how to solve this problem?
4
votes
2answers
2k views

How are photorealistic models' textures created?

I've been learning Blender and have made some decent progress. I've made some neat models, but so far, they haven't been textured. I understand how to unwrap a model so as to get the UV coordinates, ...
4
votes
1answer
5k views

How to calculate a 3x3 rotation matrix from 2 direction vectors?

I've got 2 direction vectors, for the X axis and the Y axis of the object. How do I calculate the rotation matrix of the object using these?
4
votes
3answers
929 views

Render angles of a 3D model into 2D images?

Is there a tool out there that you can give a 3D model file, and it will output 2D renders of it from various angles? For example if you were making a 2D RPG but you want to make your character look ...
4
votes
3answers
811 views

Kinematics of a die roll?

I'm working on a simple 3D game. In the game, sometimes the players have to roll die (a D8 to be exact). I wish to represent the rolling die with a 3D model, and I'd like to animate it in 3D space as ...
4
votes
2answers
169 views

What is the best methodology in mounting customizables to a 3d avatar in Unity?

Someone I know suggested just making every customizable on the model then just hide the non active ones. But that doesn't sound very efficient for me. So my question is what is the best method to use ...
4
votes
2answers
522 views

Displaying (3D) objects' name above them

The Elder Scrolls: Morrowind has a rather interesting way to display each focused objects' name. It's all a bit fuzzy in my memory right now, but the most important part I remember perfectly: the ...
4
votes
1answer
283 views

Techniques for displaying vehicle damage

I wonder how I can displaying vehicle damage. I am talking about a good way to show damage on screen. Which kind of models are common in games and what are the benefits of them? What is state of the ...
4
votes
1answer
348 views

Clever way to do the Sonic 2 Bonus Stage effect saving memory

What would be a good way to save memory to achieve an effect like this one? http://www.youtube.com/watch?v=K89LkvL9JZ0 We're using pre-rendered 3D. I'm asking this because this naive approach of ...
4
votes
3answers
4k views

How to get translation from view matrix

How can I retrieve the camera's world-space position from its view matrix? The only answers I've seen to this question suggest the translation is in the last row/col but this wouldn't work since the ...
4
votes
1answer
693 views

How can I achieve a zoom-like camera effect?

I have a top down 3D camera: view = Matrix.CreateLookAt(new Vector3(0,0,20), Vector3.Zero, Vector3.Up); Now I want to achieve the effect like when I zoom in the scene and only show a section at the ...
4
votes
4answers
949 views

Physics timestep questions

I've got a projectile working perfectly using the code below: //initialised in loading screen 60 is the FPS - projectilEposition and velocity are Vector3 types gravity = new Vector3(0, ...
4
votes
1answer
480 views

Mixing 3D and 2D content on the iPhone?

I am at the design phase of a board game on the iPhone and am considering a couple of options for rendering the view: Quartz to render top down views of the board with core animation to do the ...
4
votes
1answer
525 views

Calculating a child object's Position, Rotation and Scale values?

I am making my own game editor, but have encountered the following problem: I have two objects, A and B. A's initial values: Position: (3,3,3), Rotation: (45,10,0), Scale(1,2,2.5) B's initial ...
4
votes
1answer
244 views

What is the purpose of mesh optimization functions?

I remember there is a specific function in Direct3D which optimizes a mesh or a 3D object in some way. What is the purpose of this function? How does it reorganize vertices to make it better?
4
votes
1answer
425 views

3D models overlapping each other

I have a problem at the moment when I draw some models to teach me more about 3D game programming. The models at the moment overlaps each other from some angles witch makes sense since the game at the ...
4
votes
2answers
1k views

Implementing a 3d tile engine

I have a pretty decent experience with tile based 2d games and I would like to try to create a mixed 3d-2d game. To 3d elements will be very simple (ground, walls and water), all other elements will ...
4
votes
3answers
403 views

Finding closest coordinate of a pre-known set

Let's say I have a large number of conceptual objects of some kind, each of which occupies a pre-known set of points in a Cartesian 3-space. 1) What is the best combination of data structure (for ...
4
votes
3answers
1k views

Solidworks (3D model) import help

Hey guys, I'm not sure if this is the right place to ask, but I'm also not sure where else to ask. I have a 3D model in Solidworks that is imported from a STL file. Solidworks imports the file ...
4
votes
2answers
332 views

Shadow artifacts caused by filtering

I'm working on a shadow-mapping implementation for an OpenGLES 2.0 environment (Stage3D in Flash to be exact). This is how my current implementation works: Render the scene to backbuffer. Render ...
4
votes
2answers
408 views

How to draw efficiently large number of objects with alpha blending?

In a 3D game i have large no. of trees with alpha value. What is the efficient way to draw all? What i tried is Taking every tree as a object and draw according to its z value and using billboarding. ...
4
votes
1answer
513 views

Cross-Sections of 3D Rendered Objects

I am currently trying to look into techniques that allow the calculation of arbitrary cross-sections of a 3D object or rendered volume. However, I have been unable to find much on the topic. I know of ...
4
votes
1answer
2k views

Moving a rotated model in XNA

This seems like a simple problem with an equally simple solution that is invisible to me. I have a model that spawns at the origin and looks at my player model wherever it goes. I would like it to ...
4
votes
1answer
300 views

Translation from one coordinate system to another having Z-offset issues

I'm using ARToolkit to do an augmented reality application, but my problem is really with the 3D coordinates. In this application, I use my webcam to generate the scene. I have two markers (printed ...
4
votes
1answer
270 views

How to program a cutting tool for 3D model in game

I'm looking for a resource to figure out how to program a function to cut a 3d model in game. Example: Enemy/NPC is sliced into 2 pieces with a sword. His body is not hollow, you can see bloody ...
4
votes
1answer
199 views

What is the proper way to maintain the angle of a gun mounted on a car?

So I am making a simple game. I want to put a gun on top of a car. I want to be able to control the angle of the gun. Basically it can go forward all the way so that it is parallel to the ground ...
4
votes
2answers
713 views

Simulating the effects of wind

I am developing a mobile game for Android. It is a 3D jumping game (like ski jump) where wind plays a important role so i need to simulate it. How could I achieve this? The game uses libgdx for ...
4
votes
1answer
337 views

Handling cameras in a large scale game engine

What is the correct, or most elegant, way to manage cameras in large game engines? Or should I ask, how does everybody else do it? The methods I can think of are: Binding cameras straight to the ...