Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
Voxel transformation: scalable scene geometry discretization for global illumination
Date
2020-10-01
Author
Yalciner, Bora
Sahillioğlu, Yusuf
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
67
views
0
downloads
Cite This
In real-time computer graphics, efficient discretization of scenes is required in order to accelerate graphics related algorithms such as realistic rendering with indirect illumination and visibility checking. Sparse voxel octree (SVO) is a popular data structure for such a discretization task. Populating an SVO with data is challenging when dynamic object count is high, especially when data per spatial location is large. Problem of populating such trees is adressed with our Voxel Transformation method, where pre-generated voxel data is transformed from model space to world space on demand, in contrast to the common way of voxelizing each dynamic object over each frame. Additionally, an accompanying filtering technique for voxel transformation is also proposed. This technique serves proposed system in two ways: (1) resolves issues introduced by the proposed fast and scalable voxel transformation method, and (2) enables smooth transitions between frames and handles the aliasing problem naturally as shown in the supplementary video. As an application use case, the proposed Voxel Transformation method is demonstrated in order to achieve indirect illumination using the well-known voxel cone tracing method. Results, which is compared with the standard voxelization method and ground-truth, are visually appealing and also scalable over large number of dynamic objects as shown in the supplementary video.
Subject Keywords
Information Systems
,
Voxelization
,
Cone-tracing
,
Indirect Illumination
URI
https://hdl.handle.net/11511/37695
Journal
JOURNAL OF REAL-TIME IMAGE PROCESSING
DOI
https://doi.org/10.1007/s11554-019-00919-1
Collections
Department of Computer Engineering, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
B. Yalciner and Y. Sahillioğlu, “Voxel transformation: scalable scene geometry discretization for global illumination,”
JOURNAL OF REAL-TIME IMAGE PROCESSING
, vol. 17, no. 5, pp. 1585–1596, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37695.