Hierarchical visibility culling for spline models

Virtual environments are rapidly growing in size and complexity. At the same time, there is a strong commercial need for rendering larger and larger scenes at interactive rates. This leads to two basic enhancements, one by increasing the performance and ...

We introduce a novel primary visibility algorithm based on ray casting that provides real time performance and a feature set well suited for rendering virtual reality. The flexibility provided by our approach allows for a variety of features such as lens ...

From-region visibility culling is considered harder than from-point visibility culling, since it is inherently four-dimensional. We present a conservative occlusion culling method based on factorizing the 4D visibility problem into horizontal and ...