Sample based ray marching is an effective method for direct volume rendering of
unstructured meshes. However, sampling such meshes remains expensive, and strategies …

This paper presents a study of gradient estimation methods for rendering unstructured-mesh
volume data. Gradient estimation is necessary for rendering shaded isosurfaces and …

Graphics processing units (GPUs) have been revolutionizing the way computer graphics
and visualization are practiced. Driven by the computer-games industry and its demand for …