Directed Acyclic Graph Encoding for Compressed Shadow Maps

L. Scandolo; E. Eisemann

Directed Acyclic Graph Encoding for Compressed Shadow Maps

Computer Graphics and Visualisation

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

135 Downloads (Pure)

Abstract

Detailed shadows in large-scale environments are challenging. Our approach enables efficient detailed shadow computations for static environments at a low memory cost. It builds upon compressed precomputed multiresolution hierarchies but uses a directed acyclic graph to encode its tree structure. Further, depth values are compressed and stored separately and we use a bit-plane encoding for the lower tree levels entries in order to further reduce memory requirements and increase locality. We achieve between 20% to 50% improved compression rates, while retaining high performance.

Original language	English
Title of host publication	Proceedings High-Performance Graphics (2021)
Editors	N. Binder, T. Ritschel
Number of pages	7
Publication status	Published - 2021
Event	High-Performance Graphics 2021 - online event Duration: 6 Jul 2021 → 9 Jul 2021

Conference

Conference	High-Performance Graphics 2021
Period	6/07/21 → 9/07/21

Keywords

Computer Graphics
Three-Dimensional Graphics and Realism—Color
shading,
shadowing, and texture

Access to Document

DAG_MHFinal published version, 6.85 MBLicence: CC BY

Cite this

@inproceedings{fe432ac4cd3d4f49af058492d2ab8bd4,

title = "Directed Acyclic Graph Encoding for Compressed Shadow Maps",

abstract = "Detailed shadows in large-scale environments are challenging. Our approach enables efficient detailed shadow computations for static environments at a low memory cost. It builds upon compressed precomputed multiresolution hierarchies but uses a directed acyclic graph to encode its tree structure. Further, depth values are compressed and stored separately and we use a bit-plane encoding for the lower tree levels entries in order to further reduce memory requirements and increase locality. We achieve between 20% to 50% improved compression rates, while retaining high performance.",

keywords = "Computer Graphics, Three-Dimensional Graphics and Realism—Color, shading,, shadowing, and texture",

author = "L. Scandolo and E. Eisemann",

year = "2021",

language = "English",

editor = "{ Binder}, N. and T. Ritschel",

booktitle = "Proceedings High-Performance Graphics (2021)",

note = "High-Performance Graphics 2021 ; Conference date: 06-07-2021 Through 09-07-2021",

}

TY - GEN

T1 - Directed Acyclic Graph Encoding for Compressed Shadow Maps

AU - Scandolo, L.

AU - Eisemann, E.

PY - 2021

Y1 - 2021

N2 - Detailed shadows in large-scale environments are challenging. Our approach enables efficient detailed shadow computations for static environments at a low memory cost. It builds upon compressed precomputed multiresolution hierarchies but uses a directed acyclic graph to encode its tree structure. Further, depth values are compressed and stored separately and we use a bit-plane encoding for the lower tree levels entries in order to further reduce memory requirements and increase locality. We achieve between 20% to 50% improved compression rates, while retaining high performance.

AB - Detailed shadows in large-scale environments are challenging. Our approach enables efficient detailed shadow computations for static environments at a low memory cost. It builds upon compressed precomputed multiresolution hierarchies but uses a directed acyclic graph to encode its tree structure. Further, depth values are compressed and stored separately and we use a bit-plane encoding for the lower tree levels entries in order to further reduce memory requirements and increase locality. We achieve between 20% to 50% improved compression rates, while retaining high performance.

KW - Computer Graphics

KW - Three-Dimensional Graphics and Realism—Color

KW - shading,

KW - shadowing, and texture

M3 - Conference contribution

BT - Proceedings High-Performance Graphics (2021)

A2 - Binder, N.

A2 - Ritschel, T.

T2 - High-Performance Graphics 2021

Y2 - 6 July 2021 through 9 July 2021

ER -

Directed Acyclic Graph Encoding for Compressed Shadow Maps

Abstract

Conference

Keywords

Access to Document

Fingerprint

Cite this