Abstract
High quality volume rendering of SPH data requires a complex order-dependent resampling of particle quantities along the view rays. In this paper we present an efficient approach to perform this task using a novel view-space discretization of the simulation domain. Our method draws upon recent work on GPU-based particle voxelization for the efficient resampling of particles into uniform grids. We propose a new technique that leverages a perspective grid to adaptively discretize the view-volume, giving rise to a continuous level-of-detail sampling structure and reducing memory requirements compared to a uniform grid. In combination with a level-of-detail representation of the particle set, the perspective grid allows effectively reducing the amount of primitives to be processed at run-time. We demonstrate the quality and performance of our method for the rendering of fluid and gas dynamics SPH simulations consisting of many millions of particles.
Original language | English |
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Article number | 5613495 |
Pages (from-to) | 1533-1540 |
Number of pages | 8 |
Journal | IEEE Transactions on Visualization and Computer Graphics |
Volume | 16 |
Issue number | 6 |
DOIs | |
State | Published - 2010 |
Keywords
- GPU resampling
- Particle visualization
- ray-casting
- volume rendering