Hardware-Accelerated Point-Based Rendering of Complex Scenes

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Date
2002
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.
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@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
} }
Citation