Refers to games or art assets built in a three-dimensional space, where all positions have X, Y and Z coordinates.
4
votes
1answer
304 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 ...
0
votes
0answers
102 views
How to create 3d picking ray with the cursor position
I'm new here and I'm not sure how to go about doing this. I am creating an application that is supposed to use the cursor's position in the window to perform 3d picking. The tutorials I have found ...
0
votes
2answers
106 views
XNA Game arhitecture, sharing vertices between objects
I'm practicing primitives rendering in XNA and I want to create something like pipe or tunnel.
I have base class called PipeSegment from which I inherit classes like RotatingSegment and NormalSegment ...
0
votes
1answer
122 views
What is a correct step by step logic of exporting scene with baked occlusion for loading it at runtime?
I wonder what is a correct step by step logic of exporting scene with baked occlusion (Culling data) for loading that scene at runtime (on fly from the internet for example))?
So currently my plan ...
11
votes
1answer
852 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 ...
1
vote
2answers
176 views
How to export deform modifier animation into a game engine?
Hi we animated a simple plane with deform modifier to give a folding cloth like effect. How do we export it from maya so that we are able to import into our game engine.
Can we export them as a ...
5
votes
3answers
617 views
Arbitrary projection matrix from 6 arbitrary frustum planes
A projection matrix represent a tranformation from the camera view space to the rendering system clip space. In other words, it defines the transormation between a 6-sided frustum to the clip cube.
...
0
votes
1answer
747 views
as3 3D camera lookat
I'm making a 3D camera scene in Flash, draw using drawTriangles() and rotated and translated using a Matrix3D. I've got the camera to look after a specific point, but only on the Y-axis, using the x ...
3
votes
2answers
189 views
How does a point squared equal the radius squared?
I am working on a simple ray tracer but I don't understand some of the formulas.
One that is bugging me at the moment is this:
If a sphere is centred at origin, a point p lies on a sphere of ...
8
votes
8answers
9k views
Love2D engine for Lua; What about 3D?
Lua has been really awesome to learn, it's so simple. I really enjoy scripting languages, and I had an equally enjoyable time learning Python.
The Love engine, http://love2d.org/, is really awesome, ...
8
votes
5answers
10k views
How can I get started making textures for 3D games?
Just wondering where to find good tutorials on making textures for 3D games?
Also, is it common practice to take photographs and convert them into game textures or do designers draw the textures ...
-7
votes
1answer
148 views
Heightmap VS actual model of environment [closed]
I've been looking at 3D environments for games and I would like to know (case by case) which would be the best fit for development. The types in question are between heightmaps or a model of an ...
2
votes
2answers
455 views
How do I simulate a crowd in the stadium stands?
I'm working on a mobile sports game with Unity. I'm wondering how I could create an efficient effect of an audience in the stadium.
I know that with more than 15 characters in my games (with 1800 ...
-4
votes
1answer
215 views
Great tutorial for 3D XNA [closed]
I have finished learning 2D XNA and created a few simple games.
I want to learn the stuff below. Please recommend tutorials, books etc.
3D programming with concepts.
Game planning, Stages planning, ...
1
vote
1answer
151 views
Armature in Unity3d distorted
On the left is a base mesh with armature in Blender. I imported this model and armature into Unity3d.
The result is on the right. The arms are clearly distorted, and I can't seem to fix it by ...
7
votes
3answers
592 views
Prevent players from wallhacking in an online FPS?
Why do we still moan on wallhackers in multiplayer first-person shooters?
Isn't it possible to perform occlusion culling for all players server-side? For example, send player xyz information to ...
1
vote
2answers
300 views
How to create a walkable 3D terrain
I want to make a terrain for a RPG game that I'm developing. I started modeling the surface and implementing it to my game, but now I realized that i might be doing everything wrong. So I would like ...
22
votes
10answers
2k views
What makes a game look “good”?
I am working on a 3D space game using OpenGL and C++ and I am planning to focus on giving the game modern, eye-catching graphics, but the more I think of it the more I realise I don't really know what ...
2
votes
0answers
70 views
Pitch (X-axis) rotation problem [closed]
Situation:
From a first person perspective (camera position) I want to be able to grab an object and have it fixed to the center center of the screen while looking up-down (pitch) and looking ...
1
vote
1answer
99 views
SimpleOpenNI: Check if user hand is in specific area on image
Concerning our Microsoft Kinect project, we need some help.
We control a robot with our movements tracked by the Kinect sensor. We display the depth image of the Kinect sensor on our screen, so we ...
2
votes
2answers
164 views
How do I find realistic 3D paths for stable and unstable flying rockets?
I am building a 3D application that simulates launching small rockets. I want to draw their trajectories.
I know that rockets have a degree of stability. I want to include this in the simulation, but ...
3
votes
4answers
310 views
Benefits of upgrading from OpenGL ES 1.1 to 2.0 on iOS
I have an animated 3D iPhone game that I first wrote using OpenGL ES 1.1 in late 2009.
After many updates to the rest of the game, the OpenGL ES 1.1 code still runs fine under iOS 6, but I'm ...
0
votes
1answer
158 views
Changing Yaw, Pitch And Roll OpenGL
I'm using LWJGL and OpenGL 1.1 at this time and I was wondering what command is used to change the yaw, pitch and roll?
1
vote
1answer
140 views
Using circles to create a sphere
I've been working on creating spheres in a 3D space recently, and have successfully created cylinders. I've just run into a little problem. For some reason, my "Spheres" end up looking like very thick ...
0
votes
1answer
405 views
How can I implement 3D textures using webgl?
I went through the google I/O video but did not get exactly how to do it. If somebody could point me to a simple 3D texture implementation using webgl, it would be helpful.
i basically have a volume, ...
0
votes
0answers
96 views
How to Detects two markers at time using Vuforia SDK
I recently has been watch this Video, and this is good to know that its developed by qualcomm. I want to do same sort of project in Unity3d, I already have developed few apps using Vuforia SDK. Before ...
2
votes
0answers
163 views
Catmull Rom Spline - Constant Speed
Given the equations found in the answer here:
Determine arc-length of a Catmull-Rom spline
How would one A) Apply this to a 3D Catmull-Rom Spline, and B) write A out programmatically (for the math ...
15
votes
1answer
456 views
Keystone Correction using 3D-Points of Kinect
With XNA, I am displaying a simple rectangle which is projected onto the floor. The projector can be placed at an arbitrary position. Obviously, the projected rectangle gets distorted according to the ...
2
votes
2answers
214 views
How does Wii detect user's movement with its camera?
I try to understand the concept behind Wii device. It has 4 camera with capture user's movement, I wonder how does these cameras work? Any reference, article, or papers would be great source for me to ...
5
votes
2answers
322 views
Most efficient method to render 1,000s of unique space scenes?
I'm an artist with a concept, not the developer, and I'm trying to wrap my head around the approach I should be taking for the following scenario, namely whether to model in Photoshop or 3DS Max.
Say ...
1
vote
1answer
104 views
How can I render primitives to pixel coordinates?
I'll emphasize that I am very new to graphics programming. I've been using XNA up until now and I've been looking for a way to build simple 2D functionality with textured quads. I'm sort of starting ...
0
votes
0answers
241 views
3d game Android development libraries? [closed]
Are there any good solutions such as libraries and add on's for developing a 3D Android game in Java, neither of these are designed with 3D Gaming in mind obviously.
3
votes
2answers
797 views
Importing and Displaying .fbx files
I have a little problem with importing/displaying .fbx files.
I checked the examples but the ones which I am intrested the most (animation and texture) are badly documented for understanding by ...
-2
votes
1answer
130 views
Should I use OpenGL, Direct3D, OpenGL ES, or WebGL? [closed]
Let's say I don't want to make a game. I specifically want to mess around with a low-level 3D graphics API, because I'm bored and I want to learn something new. I want to work on programming problems ...
3
votes
1answer
296 views
3d Picking under reticle
i'm currently trying to work out some 3d picking code that I started years ago, but then lost interested the assignment was completed (this part wasn't actually part of the assignment).
I am not ...
1
vote
2answers
209 views
Should the world transformation matrix be stored in a constant buffer when rendering?
Generally when rendering objects you would:
Apply world transformation to go from object space to world space
Apply view transformation to go from world space to camera space
Apply perspective ...
1
vote
0answers
137 views
vector projection in 3D
p0, p2, p3, p4 are points in 3D and are connected on a straight line where p0 and p4 are fixed. How to find the normal at p2 and p3?
0
votes
0answers
90 views
Drawing Projected Vertices/Faces In Order
I recently created a 3d engine, and have gotten to what is (as I've found) the hardest part so far. I need to sort the objects and then draw them. I've looked at sorting algorithms, but my case is ...
9
votes
3answers
10k views
Fastest way to draw quads in OpenGL ES?
I am using OpenGL ES 2.0
I have a bunch a quads to be drawn, would love to be able to have to pass only 4 vertices per quad as if I were using GL_QUADS, but basically I just want to know the best way ...
3
votes
3answers
329 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 ...
-1
votes
1answer
129 views
Besides OpenGL and DirectX, what other libraries can aid in 3-D graphics? [closed]
And how does DX and OpenGL "make 3D exist"? I want to know how I can write a 3-D a library to render a 3-D world witg models. But any help? Thanks. Also, my main question.
-4
votes
2answers
159 views
enemy shooting towards FPS [closed]
WELL first of all I want you to see my game (its deployed on heroku cloud) :
http://still-escarpment-3701.herokuapp.com
(It takes almost 10 sec to load so please wait for couple of sec)
I have ...
-1
votes
2answers
165 views
problem with bullets shooting in FPS game
Please check out my game here: http://still-escarpment-3701.herokuapp.com
The problem is with shooting. The bullets keep on moving with the First person controller instead of moving from the same ...
7
votes
1answer
472 views
Rolling my own scene graph
Hello Game Development SE!
I'm crawling my way through OpenGL with the hopes of creating a simple and very lightweight game engine. I view the project as a learning experience that might make a ...
1
vote
1answer
111 views
Keeping Track of Position OpenGL
I have a sphere in my 3D world located at the origin. I have models orbiting it and I need to keep track of each models' position (x, y, x coordinates) as well as update their bounding boxes for ...
2
votes
3answers
304 views
2d shapes in XNA 4.0?
Having some experience of XNA but none of 3D programming. I have an idea i want to realize but i have not decided to do it in 3d or 2d. Im not sure which one will be best in XNA.
I want to have a ...
8
votes
1answer
272 views
Mesh manipulation on GPU vs CPU
Just a bit curious - where do you perform mesh manipulations, on the CPU or in the shader?
I've been doing everything on the CPU and a friend suggested moving things on to the GPU side.
If you're ...
0
votes
1answer
138 views
How to make racer map?
Hi everyone does 3D racer games use heightmap to build tracks or programmers just use easier solution ? I need to build only track space(road) without fill all hectares with trinagels and more ...
1
vote
1answer
477 views
XNA 4.0 - Transparent 3D model
I have a little problem with my 3D model (.fbx) rendered in XNA, look at screenshot.
Screenshot:
It should be a lego brick, which was modelated in Blender, then exported to .fbx and added to XNA ...
0
votes
1answer
34 views
How to linearly blend between multiple points, deviating from a default point?
I have a set of 3D points that I need to "blend" between. Lets say I have points [A,B,C] and I have the amount I want to blend each as [0.5, 0.2, 0.8], how can I blend between these points with the ...
