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» Fast Rendering of Irregular Grids
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SI3D
2009
ACM
14 years 2 months ago
Soft irregular shadow mapping: fast, high-quality, and robust soft shadows
We introduce a straightforward, robust, and efficient algorithm for rendering high-quality soft shadows in dynamic scenes. Each frame, points in the scene visible from the eye ar...
Gregory S. Johnson, Warren A. Hunt, Allen Hux, Wil...
CGF
1999
159views more  CGF 1999»
13 years 7 months ago
Fast Polyhedral Cell Sorting for Interactive Rendering of Unstructured Grids
Direct volume rendering based on projective methods works by projecting, in visibility order, the polyhedral cells of a mesh onto the image plane, and incrementally compositing th...
João Comba, James T. Klosowski, Nelson L. M...
VISUALIZATION
2003
IEEE
14 years 21 days ago
A Frequency-Sensitive Point Hierarchy for Images and Volumes
This paper introduces a method for converting an image or volume sampled on a regular grid into a space-efficient irregular point hierarchy. The conversion process retains the ori...
Tomihisa Welsh, Klaus Mueller
VISUALIZATION
1993
IEEE
13 years 11 months ago
Rapid Exploration of Curvilinear Grids Using Direct Volume Rendering
Fast techniques for direct volume rendering over curvilinear grids of hexahedral cells are developed. This type of 3D grid is common in computational uid dynamics and nite element...
Allen Van Gelder, Jane Wilhelms
ICIP
2000
IEEE
14 years 9 months ago
POCS-Based Image Reconstruction from Irregularly-Spaced Samples
This paper presents a method for the reconstruction of a regularlysampled image from its irregularly-spaced samples. Such reconstruction is often needed in image processing and co...
Ryszard Stasinski, Janusz Konrad