Real-time accumulation of occlusion-based snow

Verfasser / Beitragende:
[D. Reynolds, S. Laycock, A. Day]
Ort, Verlag, Jahr:
2015
Enthalten in:
The Visual Computer, 31/5(2015-05-01), 689-700
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00371-014-0995-5  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00371-014-0995-5 
245 0 0 |a Real-time accumulation of occlusion-based snow  |h [Elektronische Daten]  |c [D. Reynolds, S. Laycock, A. Day] 
520 3 |a This paper describes a technique to allow the real-time simulation of snowfall accumulation in a dynamic 3D environment. The implementation maps surface-bound accumulation buffers to each object in the scene, forming height-maps of accumulated snow cover. The environment is rendered from above similar to the way shadow mapping is typically produced. However, unique buffer IDs and texture co-ordinates are output within each pixel of the render. A new technique for performing the mapping between buffers is proposed where a series of quads are rendered, one per pixel of the occlusion projection, to map directly visible surfaces to their corresponding accumulation height-map. Blurring is performed on the maps and per-pixel detail is given by procedurally generated normal maps of each surface updated frame by frame. Additional detail and shaping is performed using view-dependent tessellation and the snow surface is created by re-colouring and offsetting the existing scene geometry. This is the first implementation of snow simulation which allows persistent accumulation on a dynamic, moving scene in real-time. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Real-time simulation  |2 nationallicence 
690 7 |a Real-time rendering  |2 nationallicence 
690 7 |a Computer graphics  |2 nationallicence 
690 7 |a Snow simulation  |2 nationallicence 
690 7 |a Snow accumulation  |2 nationallicence 
700 1 |a Reynolds  |D D.  |u University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK  |4 aut 
700 1 |a Laycock  |D S.  |u University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK  |4 aut 
700 1 |a Day  |D A.  |u University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK  |4 aut 
773 0 |t The Visual Computer  |d Springer Berlin Heidelberg  |g 31/5(2015-05-01), 689-700  |x 0178-2789  |q 31:5<689  |1 2015  |2 31  |o 371 
856 4 0 |u https://doi.org/10.1007/s00371-014-0995-5  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00371-014-0995-5  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Reynolds  |D D.  |u University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Laycock  |D S.  |u University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Day  |D A.  |u University of East Anglia, Norwich Research Park, NR4 7TJ, Norwich, UK  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t The Visual Computer  |d Springer Berlin Heidelberg  |g 31/5(2015-05-01), 689-700  |x 0178-2789  |q 31:5<689  |1 2015  |2 31  |o 371