Stegmaier, SimonStrengert, MagnusKlein, ThomasErtl, ThomasKlaus Mueller and Thomas Ertl and Eduard Groeller2014-01-292014-01-2920053-905673-26-61727-8376https://doi.org/10.2312/VG/VG05/187-195In this work we present a flexible framework for GPU-based volume rendering. The framework is based on a single pass volume raycasting approach and is easily extensible in terms of new shader functionality. We demonstrate the flexibility of our system by means of a number of high-quality standard and non-standard volume rendering techniques. Our implementation shows a promising performance in a number of benchmarks while producing images of higher accuracy than obtained by standard pre-integrated slice-based volume rendering.Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Picture/Image Generation-Viewing Algorithms; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Raytracing