Hardware-Accelerated Point-Based Rendering of Complex Scenes
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Date
2002
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
High quality point rendering methods have been developed in the last years. A common drawback of these approaches is the lack of hardware support. We propose a novel point rendering technique that yields good image quality while fully making use of hardware acceleration. Previous research revealed various advantages and drawbacks of point rendering over traditional rendering. Thus, a guideline in our algorithm design has been to allow both primitive types simultaneously and dynamically choose the best suited for rendering. An octree-based spatial representation, containing both triangles and sampled points, is used for level-of-detail and visibility calculations. Points in each block are stored in a generalized layered depth image. McMillan s algorithm is extended and hierarchically applied in the octree to warp overlapping Gaussian fuzzy splats in occlusion-compatible order and hence z-buffer tests are avoided. We show how to use off-the-shelf hardware to draw elliptical Gaussian splats oriented according to normals and to perform texture filtering. The result is a hybrid polygon-point system with increased efficiency compared to previous approaches.
Description
@inproceedings{10.2312:EGWR/EGWR02/043-052,
booktitle = {Eurographics Workshop on Rendering},
editor = {P. Debevec and S. Gibson},
title = {{Hardware-Accelerated Point-Based Rendering of Complex Scenes}},
author = {Coconu, Liviu and Hege, Hans-Christian},
year = {2002},
publisher = {The Eurographics Association},
ISSN = {1727-3463},
ISBN = {1-58113-534-3},
DOI = {10.2312/EGWR/EGWR02/043-052}
}