Effective Range Detection Approach for Ancient Malacca Virtual Walkthrough

In this paper, we present and examine range detection approach for view frustum culling that effectively speed-up the interactive virtual heritage project namely Ancient Malacca Virtual Walkthrough. The Ancient Malacca Virtual Walkthrough is a project that focuses on the modeling and visualization of Malacca city in 15th century. Traditional six plane view frustum culling approach use the plane equation to test whether objects is within the visible region. However, range detection approach is different. It is based on camera referential point and tests the objects if they are in the viewing range. The range detection approach can cull exactly the same number of objects culled by traditional six plane approach in virtual walkthrough. This shows that the approach define exactly the same view volume frustum as traditional approach. The advantages of range detection approach is the virtual walkthrough application can run in higher frame rates and the time taken is shorter to finish one round of pre-defined path. The results illustrate that this approach is able to increase the rendering performance of the virtual walkthrough without sacrificing the visual quality.