Interactive Ray Tracing of Large Models Using Voxel Hierarchies
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Date
2012
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Publisher
The Eurographics Association and Blackwell Publishing Ltd.
Abstract
We propose an efficient approach for interactive visualization of massive models with CPU ray tracing. A voxel-based hierarchical level-of-detail (LOD) framework is employed to minimize rendering time and required system memory. In a pre-processing phase, a compressed out-of-core data structure is constructed, which contains the original primitives of the model and the LOD voxels, organized into a kd-tree. During rendering, data is loaded asynchronously to ensure a smooth inspection of the model regardless of the available I/O bandwidth. With our technique, we are able to explore data sets consisting of hundreds of millions of triangles in real-time on a desktop PC with a quad-core CPU.
Description
@article{10.1111:j.1467-8659.2011.02085.x,
journal = {Computer Graphics Forum},
title = {{Interactive Ray Tracing of Large Models Using Voxel Hierarchies}},
author = {Áfra, Attila T.},
year = {2012},
publisher = {The Eurographics Association and Blackwell Publishing Ltd.},
ISSN = {1467-8659},
DOI = {10.1111/j.1467-8659.2011.02085.x}
}