Unanswered Questions

8
votes
0answers
102 views

How can I compute a Jacobian matrix with dual quaternions?

I'm trying to understand an inverse kinematics algorithm realized with dual quaternions as presented here. My Jacobian matrix, however, seems to be calculated wrong. Could somebody explain, ...
8
votes
0answers
991 views

How can I implement a third-person camera in an SC2 map?

I want to try creating a custom Starcraft 2 map with a third-person camera following a unit. A few custom maps with this feature exist already, so I know it's possible. How do I do this? Do I need a ...
5
votes
0answers
124 views

Hotplugging Joysticks And Gamepads On OSX

I've tested the cross platform joystick support features on GLFW, SDL2 and SFML. SDL2 appears to be the most complete, but it can't detect when joysticks have been unplugged on OSX. To me, this is a ...
5
votes
1answer
124 views

How do I programmatically access single sprites when Sprite Mode is Multiple?

Unity 4.3 newly brings an ability to cut up a sprite sheet into multiple individual sprites. This is useful since you then only need one master spritesheet, but nevertheless get references to ...
5
votes
0answers
1k views

How can I export a .FBX file from Unity3D at runtime?

I want to export an object as a .fbx at runtime in Unity3D. I've made a C# script to export a mesh filter or skinned mesh renderer to a .obj file at runtime, but I want the animation and skin support ...
5
votes
0answers
118 views

How to pass depth buffer from OGRE to CUDA?

I am using OGRE for rendering some objects. At every frame, I would like to pass the resulting depth buffer to CUDA for running some kernels on it and computing a result. How can I achieve this? How ...
5
votes
1answer
414 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
452 views

atmospheric scattering and sky geometry

I'm trying to implement an atmospheric scattering in my graphics (game) engine based on the gpu gems article: link. An example implementation from that article uses a skydome. My scene is different - ...
4
votes
0answers
107 views

How can I implement real-time mutual object reflection?

So, given a scene like this (cubemap skybox with "real" spheres) Everything looks great, except for the fact that the spheres don't reflect each other. What's a good way to go about this? The ...
4
votes
0answers
143 views

How to do a genetic algorithm's chromosome which controls movements

First I would like to inform you that I'm french and 15 so my english is not very good. I've read some articles about genetic algorithms (GA) and since I discovered the HTML5's canvas element, I can ...
4
votes
3answers
734 views

How do I render a PNG with transparency in LibGDX?

I'm building a simple tic-tac-toe example with LibGDX. I have simple images: cross, circle and board, all pngs created with GIMP with a transparent background. How can I render them as a Texture with ...
4
votes
0answers
144 views

How do I add a method to a class without editing the source file?

I am trying to add a method to a Minecraft source file, but I have to figure out how to do it without actually editing the source files, as it would be illegal to redistribute Minecraft's source files ...
4
votes
1answer
433 views

Should the networking of my game be a component or a service?

I am working on a windows game and I am trying to understand the XNA GameComponents and GameServices classes and use. From what I understand about a component is that it has an Update method that ...
4
votes
1answer
194 views

How can I support the creation and rendering of both interior and exterior environments?

Say I already have a renderer that can support outdoor terrain and environment rendering. How would I go about adding support for interior environments (for example, like World of Warcraft's dungeons) ...
3
votes
1answer
197 views

How to solve the big video memory requirements in 2d game

We are developing 2d game (Factorio) in allegro C/C++ and we are facing the problem with increasing video memory requirements as the game content increases. What we currently do is, that we gather ...

15 30 50 per page