Ambient occlusion and Image-Based Lighting in Volume Visualization
for Hewlett-Packard Scalabe Visualization Array
(October, 2008)
This is a volume visualization application with advanced ambient occlusion and image based lighting
designed for Hewlett-Packard Scalabe Visualization Array.
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Introduction
This document gives an overview of the extensions designed for the parallel isosurface ray-casting application called RTPara. The application allows the visualization of volume datasets in a distributed environment by rendering isosurfaces using screen space or object space decomposition approaches at interactive frame rates. Rendering parameters like the viewing direction, isosurface threshold, etc. can be interactively modified, the program provides an immediate visual feedback. In the available documentation the implemented isosurface ray-casting algorithm was presented in detail including the parallelization approaches (screen space and object space), the ParaComp Library bindings, the installation and usage manual, and also the relevant implementation aspects were covered.
The original application supports basic ray-casting rendering with Phong-Blinn and Lambert BRDF models. This extension adds new features to the software's rendering capabilities. A fake global illumination method called ambient occlusion has been integrated with a cube map based image based lighting technique.
Documentation
| File | Description |
|---|---|
| rtpara-occlusion-0.1.pdf | Manual of the renderer |
Downloads
| File | Description |
|---|---|
| rtpara-occ-0.1-1.x86_64.rpm | Compiled version of the ambient occlusion renderer for AMD64 HP-XC |
| rtpara-occ-0.1-1.src.rpm | Source version of the ambient occlusion renderer for AMD64 HP-XC |
| Cg-1.5.x86_64.rpm | NVIDIA Cg library (RPM package for AMD64 HP-XC) |
| glew-1.3.4-1.x86_64.rpm | OpenGL Extension Wrangler (RPM package for AMD64 HP-XC) |
| glew-devel-1.3.4-1.x86_64.rpm | OpenGL Extension Wrangler headers (RPM package for AMD64 HP-XC) |
