Following the introduction we present a section on several graphics rendering concepts that feature in this article. In the remainder of this article we will discuss six popular algorithms for indoor and outdoor rendering of environments, namely:
- quad-based static rendering of environments
a continuous level-of-detail (CLOD) rendering of height fields as described by Roettger et al [1]
real-time optimally adapting meshes (ROAM) for terrain rendering
portal-based rendering of indoor environments
binary space partitions (BSP) of indoor environments
potential visibility sets (PVS)
We will discuss each approach, offering a high-level description of each as well as implementation considerations where appropriate. Finally each algorithm will be discussed in terms of its application in modern graphics system before we conclude the article.
