Vertex-Blend Attribute Compression

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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Skeleton-based animations require per-vertex attributes called vertex-blend attributes. They consist of a weight tuple and a bone index tuple. With meshes becoming more complex, vertex-blend attributes call for compression. However, no technique exists that exploits their special properties. To this end, we propose a novel and optimal weight compression method called Optimal Simplex Sampling and a novel bone index compression. For our test models, we compress bone index tuples between 2.3:1 and 3.5:1 and weight tuples between 1.6:1 and 2.5:1 while being visually lossless. We show that our representations can speed rendering and reduces GPU memory requirements over uncompressed representations with a similar error. Further, our representations compress well with general-purpose codecs making them suitable for offline-storage and streaming.
Description

        
@inproceedings{
10.2312:hpg.20211282
, booktitle = {
High-Performance Graphics - Symposium Papers
}, editor = {
Binder, Nikolaus and Ritschel, Tobias
}, title = {{
Vertex-Blend Attribute Compression
}}, author = {
Kuth, Bastian
and
Meyer, Quirin
}, year = {
2021
}, publisher = {
The Eurographics Association
}, ISSN = {
2079-8687
}, ISBN = {
978-3-03868-156-4
}, DOI = {
10.2312/hpg.20211282
} }
Citation