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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1answer
498 views

Efficient foliage rendering with OpenGL

Rendering foliage usually involves "hanging" triangles and textures that have completely transparent areas. I'm interested in knowing how are these usually handled by a 3D engine. The first thing ...
5
votes
1answer
976 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 ...
5
votes
1answer
424 views

apply non-hierarchial transforms to hierarchial skeleton?

I use Blender3D, but the answer might not API-exclusive. I have some matrices I need to assign to PoseBones. The resulting pose looks fine when there is no bone hierarchy (parenting) and messed up ...
5
votes
2answers
580 views

How to generate portal zones?

I'm developing a portal-based scene manager. Basically all it does is to check the portals against the camera frustum, and render their associated portal zones accordingly. Is there any way my editor ...
5
votes
2answers
347 views

I need advice on creating animal 3D walk cycles in XNA

I want to purchase a number of 3D models from TurboSquid and animate them in an XNA game. I wrote a lot of games from 1985-1999 and have recently become involved with XNA. Now I would like to port ...
5
votes
1answer
498 views

How to attach two XNA models together?

I go back on unsolved question I asked about attaching two models together, could you give me some help on this ? For example, If I want to attach together Model1 (= Main model) & Model2 ? I ...
5
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1answer
428 views

How can I create a 3D model in Java without using modeling software? [closed]

I am a lightly experienced game developer and this is my first time trying 3D objects in Java for the first time. I have been recently creating and updating games using AWT, Swing, and Graphics, but I ...
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votes
2answers
727 views

If I project a sphere in 3D will it be a circle?

Assuming I have infinite vertices to represent the sphere, if I project the sphere from any position/scale in 3D to 2D, will it be a circle? I know it will not be a circle on the screen, because of ...
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4answers
1k views

I'm a single developer making a game made of blocks. Can I make 3d characters made of blocks without looking like Minecraft?

I would like to differentiate the look as much as I can but yet it has to be within the limits of what is reasonable for a single programmer can do. I have alot of ideas that would make the game ...
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8answers
9k 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 ...
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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 ...
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4answers
4k 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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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 ...
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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
699 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 ...
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4answers
2k 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 ...
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2answers
842 views

Replacing a custom 3D model format with something more standard

This is long, so the short question is: What's the best/right/standard set of technologies for creating 3D models and incorporating them into a game such that the complexity for the artist is kept to ...
4
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6answers
376 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
2answers
392 views

Is it possible to create an “impossible” rooms in games?

Forgive me my lack of knowlegde, but for quite a long time I asked myself whether it was possible to create a continous game space that some player could walk inside and so on, that would be ...
4
votes
1answer
211 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
157 views

Does one's choice of 3d modeling software used during asset creation affect performance at runtime?

Does software used to create 3d assets (for game development specifically) have an impact on the efficiency of the program? In other words, is it possible to reduce the operating footprint of an ...
4
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2answers
467 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 ...
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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
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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
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1answer
345 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
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1answer
722 views

Is a game like Subway Surfers suited for 2D or 3D?

I imaginated a mobile game and now I'm getting doubts as to whether its possible for my idea to be developed in 2D. Here's a crude illustration of the game scene: It's pretty much like Subway ...
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votes
5answers
938 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
3answers
593 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
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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
2k views

How to create a 3D world with 2D sprites similar to Ragnorak online?

As far as I know Ragnorak Online is a 3D game world with 2D sprites overlayed. I would like to use this style in a game I am making in Unity, so I would like the player to be able to select little ...
4
votes
1answer
354 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
765 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
432 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
495 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
3answers
206 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
318 views

How to efficiently render a large terrain mesh?

Recently I've been stuck on a problem thinking about the best way to generate a terrain into my game. In another projects I normally used heightmaps, so all the core-work was based on the engine used, ...
4
votes
4answers
819 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
852 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
673 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
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3answers
5k 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
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
3answers
967 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
866 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
939 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
310 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
365 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
1answer
733 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
984 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
509 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
674 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 ...