Scrolling background image

OpenGL Development JOGL Development
#1

I want to display a background image for my game which will slowly scroll when I rotate. Imagine an arena which the players run around in and the background image could be of the spectators.

I assume this has been done before (since I’ve seen games having such background images). The most obvious solution would be to use glRasterPos to draw the image at the correct location, but what I’m looking for is a good example showing how to calculate this. I guess I could do it myself, but if someone has done it before I could just as well learn from that example.

Any suggestions?

Thanks!

#2

I think what you are looking for is called a 3d skybox. Do some googling on this, and here are some links.

http://www.valve-erc.com/srcsdk/Levels/3d_skyboxes.html
http://developer.valvesoftware.com/wiki/Making_3D_Skyboxes

#3

Yea, or a skydome (sphere that follows the camera), that you map with a continuous texture. Then you can rotate the sphere slightly each frame, making the clouds move. I guess its hard to get the texture right though…