Papervision Programming Tutorial - SkyBox
Learn how to implement a sky box in Papervision 3D.
In 3D games you quite often need to fill the sky with the distant view of the outside world, be it the sky, a city backdrop, a star field or a mountain range. The player in the 3D world is never expected to actually reach what is depicted in this view, but without it the player would never get a sense that they are moving inside a world bigger than the rooms or tunnels that make up an actual 3D level.
One of the easiest ways to generate the look of this outside world is with a sky box. As the name suggests it is essentially a box that contains the player (or more specifically the camera). If you move the box so its position is always centred on the camera, and make it large enough to encompass the 3D world that the player is looking at, the player gets the effect of a distant vista that surrounds their local 3D world.
This sample takes a standard Papervision cube primitive, textures it with 6 double sided skybox textures (double sided so we can see the textures from the inside), and updates the position of the cube so it is always centred on the camera. The last bit ends up being a little redundant as the camera never actually moves in the demo, but I have included the code anyway.
I think you’ll agree the effect it quite nice, while being extremely simple to achieve. Check out the demo here, and download the source here.
Go back to Papervision Tutorials
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Although I appreciate the effort of sharing this code, I found it confusing rather than inlightening. the code is all over the place and the post about it doesn’t mention anything about the implementation; it only covers the concept of skyboxes in general.
I you need a proper example of a skybox, try one of the following tutorial instead:
- http://blog.projectnibble.org/2009/05/22/easy-papervision3d-skybox-tutorial-and-source/
- http://professionalpapervision.wordpress.com/2008/10/20/putting-stars-and-more-into-a-skybox-source/