Tagged Questions
-1
votes
0answers
44 views
Having trouble's understanding NIF model file format?
I'm attempting to develop a 3rd party application to make it easy to import 3d model parts into my mod for Skyrim. The plan was to have a file viewer and preview window of the .nif model but since I ...
0
votes
0answers
61 views
Triangle Clipping
I want to determine which part of a triangle is visible in a frustum in OpenGL, is there a way to get visible coordinates of triangle in the viewing frustum?
0
votes
1answer
77 views
OpenGL camera translate and rotate on cameras local axis
How can I make rotation and translation on a local camera axis in OpenGL?
I want to make camera like "aeroplane" camera with a pitch yaw and roll.
I want to have good explanation on everything!
Can ...
0
votes
1answer
99 views
how to make cross platform 3d games using modern opengl? [closed]
How to create games that run on windows, Linux, mac os x, android, ios, wp8 etc....
using c/c++, opengl 3 or 4 and opengl es 2.0.
any tutorials or videos on how to create cross-platform 3d games.
0
votes
0answers
31 views
Android Object get Jagged at the border
I am new to OpenGL ES 1 in android. My 3D Model border getting Jagged. Please help me to look like a smooth border instead of jagged.
Screenshot : http://i.stack.imgur.com/1Gq83.png
private class ...
1
vote
1answer
61 views
How to render models using a personalized projection matrix?
I'm creating a game with a great sprite demand. Out team is considering automatizing the sprite generation using 3D models. The problem is we have a very particular ortographic projection:
We have ...
0
votes
1answer
67 views
How to rotate the camera to point to a specified location?
I have a quaternion based camera class (which controls a view matrix) and would like a function to rotate the camera to face a specified point. The best approach I can come up with is that I rotate ...
1
vote
2answers
166 views
How to check for cube collisions?
I want a method, which takes two "ObjectBox" objects (A "ObjectBox" has .getX() .getY() .getZ() .getSizeX() .getSizeY() .getSizeZ() methods) as a parameter and return true if the two Boxes are ...
0
votes
1answer
219 views
Parsing Blender obj with Opengl And C++
I wrote an example attempting to parse blender *.obj file in OpenGl/C++ , to get it done : I have to open the file, exploding it's lines ...and returning the result.
This is how the shape.obj file ...
1
vote
0answers
50 views
Rotate view matrix based on touch coordinates
I'm working on an Android game where I need to rotate the camera around the origin based on the user dragging their finger. My view matrix has initial position of sitting on the negative z and facing ...
3
votes
1answer
140 views
Do GLSL 4.x subroutine variables cause any performance overhead?
There's not too much deep information about them on the web.
How are they implemented and how they work under the hood? I'd like to know that they cause any performance overhead or not, especially in ...
0
votes
0answers
58 views
Handling 3D perspective for different aspect ratio
I have problem for supporting different aspect ratio in developing Mobile Game.
I was developing on 2:3 screen which is iPhone 4 (Retina).
When I use width and height for screen size and use fixed ...
1
vote
0answers
39 views
How to find the location of JOGL openGL object , after rotation?
I have a rotating object - a cube , here :
@Override
public void display(GLAutoDrawable gLDrawable)
{
moveFirstPerson();
checkCameraCollisionWithObject();
final GL gl = ...
-1
votes
1answer
70 views
Ray picking gives inversed results
I'm trying to do a simple ray picking implementation to allow a user to select a cell in a grid rendered in 3D. I'm almost there, but I've ran into an issue which I can't seem to solve.
Consider the ...
6
votes
1answer
207 views
How to find the bottleneck in a typical OpenGL game?
I am working on a little game engine. All major features are implemented yet, despite game logic which I assume not to be such a computational effort. The framerate is at least around 40 FPS, most of ...
2
votes
1answer
405 views
Is the “impossible object” possible in computer graphics?
This may be a silly question but I want to know the answer to it. I saw this thing called the "impossible object", while they're many different images of this online, it's suppost to be impossible ...
0
votes
2answers
386 views
Screen or World Coordinates to tile Coordinates
I have Plane made of tiles in opengl. I start drawing them at (0, 0, -20) after that i do my translations so that the view is rotated somewhat similar to an isometric (kind of) perspective.
I'd now ...
3
votes
2answers
167 views
Extract smaller frustum from camera frustum?
Background:
I was thinking of implementing multiselection by performing a frustum culling on a sub-part of the screen.
Problem:
Given total screensize, a rectangle on the screen (pos, size), and ...
2
votes
2answers
97 views
How scanline rendering finds an intersection with an object
I'm a newbie with graphics and after I read many articles on the web I still don't understand how in rasterizing from a pixel coordinate like (0;0) on the screen the intersection with an object (let's ...
2
votes
0answers
184 views
Converting Mouse Coords to 3d coords with Camera position [closed]
So I've looked at all the answers I can possibly find, and nothing seems to fit what I need exactly (because im bad at math).
I'll explain what I have thus far:
A camera with x,y,z, Pitch and Yaw ...
4
votes
2answers
330 views
3D models on 2D tilemap perspective when scrolling
I am creating a small top-down game, where the player traverses a 2D tilemap, with an illusion of depth provided by 3D models for things like buildings or trees.
Having gotten to the point where I ...
2
votes
0answers
157 views
Displacement Mapping opengl-es
I need to do an application similar to this Morfo. And I posted a question here where the answer states the solution is "Displacement Mapping" . And I googled this to do it in opengles. I couldnt get ...
0
votes
1answer
90 views
Interleaved formats for meshes confusion
So I have been reading up on data formatting for 3D objects so that I can render my meshes as fast as possible in openGL, I am quite new to openGL so bear with me.
The format for interleaving your ...
0
votes
0answers
516 views
How to do collision detection in 3D using bounding boxes?
I am using c++ in visual studio 2010 with opengl. I am trying to make a programme that has 2 boxes that are able to be stacked on top of each other but I am having some trouble with the collision ...
0
votes
1answer
211 views
Stars coming out of screen [closed]
I am pretty new to Graphics Programming. I am currently using OpenGL.
I have got some hands-on in last few days. I have knowledge of Texture Mapping, Cubemap, Multitexturing. But somehow I am not able ...
1
vote
1answer
304 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 ...
25
votes
10answers
3k 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
210 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?
4
votes
3answers
2k 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 ...
11
votes
1answer
1k 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 ...
