Advanced illumination for gpu volume

Volume raycasting techniques are important for both visual arts and. They allow an efficient generation of visual effects and visualization of scientific data obtained by tomography or numerical. Thanks to their flexibility, experts agree that GPU-based is the state-of-the art technique for interactive volume rendering.will most likely replace existing slice-based techniques in the near. Volume rendering techniques are also effective for the direct rendering implicit surfaces used for soft body animation and constructive geometry.lecture starts off with an in-depth introduction to the concepts GPU-based ray-casting to provide a common base for the following. The focus of this course is on advanced illumination techniques approximate the physically-based light transport more convincingly. techniques include interactive implementation of soft hard shadows, ambient occlusion and simple Monte-Carlo based approaches global illumination including translucency and scattering. the proposed techniques, users are le to interactively create images from volumetric data whose visual quality goes far traditional approaches. The optical properties in participating are defined using the phase function. Many approximations to the based light transport applied for rendering natural phenomena as clouds or smoke assume a rather homogenous phase function. For rendering volumetric scans on the other hand different phase models are required to account for both surface-like structures fuzzy boundaries in the data. Using volume rendering techniques,who create medical visualization for science magazines may now work on tomographic scans directly, without the necessity to fall back to creating polygonal models of anatomical structures.