Multiresolution techniques for interactive texture-based volume visualization
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
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Relief mapping of non-height-field surface details
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Pyramidal displacement mapping: a GPU based artifacts-free ray tracing through an image pyramid
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Survey of semi-regular multiresolution models for interactive terrain rendering
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Maximum mipmaps for fast, accurate, and scalable dynamic height field rendering
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Occlusion culling for sub-surface models in geo-scientific applications
VISSYM'04 Proceedings of the Sixth Joint Eurographics - IEEE TCVG conference on Visualization
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We developed a ray casting-based rendering system for the visualization of geological subsurface models consisting of multiple highly detailed height fields. Based on a shared out-of-core data management system, we virtualize the access to the height fields, allowing us to treat the individual surfaces at different local levels of detail. The visualization of an entire stack of height-field surfaces is accomplished in a single rendering pass using a two-level acceleration structure for efficient ray intersection computations. This structure combines a minimum-maximum quadtree for empty-space skipping and a sorted list of depth intervals to restrict ray intersection searches to relevant height fields and depth ranges. We demonstrate that our system is able to render multiple height fields consisting of hundreds of millions of points in real-time.