Compact Precomputed Voxelized Shadows
Artikel i vetenskaplig tidskrift, 2014

Producing high-quality shadows in large environments is an important and challenging problem for real-time applications such as games. We propose a novel data structure for precomputed shadows, which enables high-quality filtered shadows to be reconstructed for any point in the scene. We convert a high-resolution shadow map to a sparse voxel octree, where each node encodes light visibility for the corresponding voxel, and compress this tree by merging common subtrees. The resulting data structure can be many orders of magnitude smaller than the corresponding shadow map. We also show that it can be efficiently evaluated in real time with large filter kernels.

real-time

shadows

precomputed

maps

Författare

Erik Sintorn

Chalmers, Data- och informationsteknik, Datorteknik

Viktor Kämpe

Chalmers, Data- och informationsteknik, Datorteknik

Ola Olsson

Chalmers, Data- och informationsteknik, Datorteknik

Ulf Assarsson

Chalmers, Data- och informationsteknik, Datorteknik

ACM Transactions on Graphics

0730-0301 (ISSN)

Vol. 33 4

Ämneskategorier

Datorteknik

DOI

10.1145/2601097.2601221

Mer information

Skapat

2017-10-08