TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - nicht begutachtet (unreviewed)
A1  - Roth, Thorsten
A1  - Weier, Martin
A1  - Bauszat, Pablo
A1  - Hinkenjann, André
A1  - Li, Yongmin
T1  - Hash-Based Hierarchical Caching and Layered Filtering for Interactive Previews in Global Illumination Rendering
T2  - Preprints
N2  - Modern Monte-Carlo-based rendering systems still suffer from the computational complexity involved in the generation of noise-free images, making it challenging to synthesize interactive previews. We present a framework suited for rendering such previews of static scenes using a caching technique that builds upon a linkless octree. Our approach allows for memory-efficient storage and constant-time lookup to cache diffuse illumination at multiple hitpoints along the traced paths. Non-diffuse surfaces are dealt with in a hybrid way in order to reconstruct view-dependent illumination while maintaining interactive frame rates. By evaluating the visual fidelity against ground truth sequences and by benchmarking, we show that our approach compares well to low-noise path traced results, but with a greatly reduced computational complexity allowing for interactive frame rates. This way, our caching technique provides a useful tool for global illumination previews and multi-view rendering.
KW  - Level-of-Detail
KW  - Filtering
KW  - Rendering
KW  - global illumination
KW  - caching
U6  - https://doi.org/10.20944/preprints202001.0247.v1
DO  - https://doi.org/10.20944/preprints202001.0247.v1
N1  - peer-reviewed version of this preprint: Computers 2020, 9, 17
https://doi.org/10.3390/computers9010017
PB  - MDPI
CY  - Basel
ER  -