The Source engine is a 3D game engine developed by Valve Corporation. Its unique features include a large degree of modularity and flexibility, an artist-driven, shader-based renderer, accurate lip sync and facial expression technology, and a powerful, efficient and completely network-enabled physics system.
Learn how to create a 3D skybox, you will also learn the basics of visGroups. A 3D skybox is used to create the illusion that the level is larger than it actually is to add detail and immersion.
Posted by Silverfisk on Jan 8th, 2010
We start by creating a sky_camera entity, then we select a few pieces of geometry we will use as reference for the 3D skybox. We copy the reference geometry and the sky_camera and change the size to 1/16th of it's normal size (default skybox size).
Then we visGroup the reference geometry for easy hiding and create the geometry we want in our 3D skybox.