Tagged Questions

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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-1
votes
1answer
59 views

Help me debug my 3-d collision code

I have been havaing a problem doing 3-d collision in a game i have been trying to make for several weeks now. What i am trying to do is prevent a PlayerModel object from colliding with Obstacle(cube) ...
-2
votes
1answer
74 views

3d objects in binary files

Currently I have 11 3d spheres created at runtime in my application. The application runs well as it is, but I'm anticipating some garbage collection hiccups due to camera panning. Would performance ...
1
vote
1answer
69 views

UV Mapping Problems

I'm creating an alien in blender, doing my best to base it on the guys from toy story. When I create the UV Map and colour it, import it back in then take a look at it in a seperate window there is ...
0
votes
2answers
173 views

Collision detection - Smooth wall sliding, no bounce effect

I'm working on a basic collision detection system that provides point - OBB collision detection. I have around 200 cubes in my environment and I check (for now) each of them in turn and see if it ...
2
votes
0answers
47 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 ...
1
vote
0answers
29 views

How do I export Daz3D characters into an XNA format?

How do I export 3D animated characters created in Daz3D studio to a format suitable for inclusion in XNA video games? I'm looking for instructions on how to make sure weight, bones, vertices and ...
-4
votes
1answer
89 views

Which sketch-to-3D-model software is available? [closed]

I picture this: I paint a 3dmodel from the front, side and top - more or less to scale. Then I take a photo of it and give it to the software. The software then tries to figure out which part of it ...
-3
votes
0answers
116 views

How did oldschool dungeon crawlers ie Dungeon Master/Eye of the Beholder render? [closed]

I'm curious as to how the old 3d first person dungeon crawlers of the 80s rendered their environments, bear in mind these games came out several years before Wolfenstein 3d, Catacombs 3d and Ultima ...
5
votes
5answers
377 views

Why is there such a problem to create realistic eyes in games? [closed]

I mean, even the latest demo from ps4 possibilities or any demo, you can see that the person is not real if there are eyes involved. E.g. if you only see the skin, you may be mistaken, but not if you ...
-2
votes
0answers
57 views

Any nice tutorial for OpenGL with Blender for beginners [closed]

please suggest me some nice tutorials for OpenGL with Blender for a simple 3D game Development...
-1
votes
1answer
48 views

How to get started with 3D apps for android and iOS? [closed]

I have developed a few simple android apps. I want to build apps and games with 3D environment. For eg like this. Kindly tell me how to get started ? Also, I would like to convert my android app/game ...
5
votes
2answers
91 views

How do I convert a 2D movement (from mouse) to a displacement along a 3d axis?

I'm making a small 3D scene editor (that only allow to modify objects positions). Each object is draw with a 3d X/Y/Z axis : How it works : user choose an axis (X, Y or Z) by left clicking on it, ...
0
votes
1answer
64 views

xna: Methods for having sprite characters in 3d game?

Methods for having sprite characters in 3d game? I am making a game much like Doom. The world is 3d but objects and characters are 2d sprites. I am not asking about billboarding objects. I am asking ...
11
votes
2answers
322 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 ...
1
vote
3answers
77 views

XNA seams between 3d primitives in tiled terrain

Every time I draw two primitives side by side, in this case two quads, I always get this seam-like tearing effect right along the sides of them. I'd like to think there is just an easy fix, but the ...
0
votes
0answers
34 views

Terrain Multi-texturing Approaches

I've read numerous articles about how to render terrain and most of them approach it from a vertex/polygon perspective with respect toward level of detail. But what I continue to find myself ...
-1
votes
2answers
97 views

3D game demo in XNA [closed]

Does anyone know of a decent 3D game tutorial with source code? I'm really new with 3D development for XNA and have found that the best way to figure out how to code for something is to look at ...
1
vote
1answer
74 views

3D Collision Detection with XNA

So I'm trying to implement some collision detection in XNA. I'm aware of the Bounding Spheres, but I worry with the accuracy, most items in my game are cubic in nature, so it seems very square-peg in ...
3
votes
3answers
341 views

Where and how to check if game was developed with bought Unity3D licence (not cracked app)?

We hired an external team from Eastern country. They built our mobile game app using Unity3d which we paid a lot of $K. We asked them to only use the software with bought license, not cracked one, and ...
5
votes
2answers
127 views

Plotting entities on a radar

I'm trying to build a radar system like the one in the original X-Wing games. The way it works is that there are two circular radar systems, one for behind the ship, and one for infront. So, I've ...
3
votes
1answer
193 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
0answers
58 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
85 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
2answers
73 views

Collisions and camera tilt in XNA C# 3D Game

I am working on a game programming class project and need some help. I cannot find a good tutorial on how to get these 3 frictionless spheres to collide with each-other, the surface and the walls of ...
3
votes
2answers
167 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 ...
2
votes
1answer
76 views

How to approach skinning a snake made of cubes and is it right method for snake 3d game

I'm making a 3d snake game clone for studies and prettly much got everything to work, I have a 3d ground object surrounded by walls, and a snake head piece (cube). when you start the game 2 additional ...
0
votes
1answer
84 views

Making a point light follow the camera

I'm applying phong shading onto a single giant triangle, and I'd like the light's coordinates to coincide with the camera's coordinates in 3D space. In order to do this, whenever I update the camera's ...
1
vote
0answers
95 views

Indoor 3D game worlds

I'm looking for a little direction. I'm building a game engine as a part of my university project, and I'm having a little trouble about what to look for when it comes to indoor 3D game worlds. Now ...
-6
votes
1answer
106 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 ...
-3
votes
1answer
115 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, ...
2
votes
2answers
234 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 ...
3
votes
1answer
51 views

Calibration of a 6 DOF tracking device

Setting: In our facility we have a 3D laboratory with 3 large displays (two edge-to-edge on orthogonal walls, one on the ground, also edge-to-edge). Its primary use-case is exploring 3D virtual ...
1
vote
1answer
83 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 ...
2
votes
1answer
183 views

Where can I buy freely redistributable (creative commons) game assets?

I'd like to know about any 3D asset shops out there that specialize in game assets and, most importantly, license their assets under an open license like Creative Commons or similarly permissive. We ...
1
vote
2answers
217 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 ...
2
votes
0answers
37 views

Pitch (X-axis) rotation problem

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 ...
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 ...
0
votes
1answer
92 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
63 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 ...
1
vote
1answer
123 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
0answers
49 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 ...
3
votes
4answers
214 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 ...
2
votes
0answers
85 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 ...
2
votes
2answers
146 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 ...
5
votes
2answers
234 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 ...
-2
votes
1answer
110 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 ...
1
vote
2answers
139 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 ...
0
votes
0answers
142 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.
1
vote
1answer
75 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
51 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 ...

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