Recent Advancements in Ray-Tracing based Volume Rendering Techniques
Recent developments in ray tracing algorithms have shown that interactive high-quality volume rendering is no longer unreachable even for softwarebased implementations. Compared to graphics board and custom hardware implementations they offer additional benefits, e.g. support for large models and for integration with different types of data set topologies. This paper summarizes the state-of-the-art in ray tracing based volume rendering algorithms. Comparisons to current GPU implementations show strengths and drawbacks of different approaches.