http://www.cnr.it/ontology/cnr/individuo/prodotto/ID90971

Planet-sized batched dynamic adaptive meshes (P-BDAM) (Contributo in atti di convegno)

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Label

Planet-sized batched dynamic adaptive meshes (P-BDAM) (Contributo in atti di convegno) (literal)

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Alternative label

Cignoni P. 1, Ganovelli F. 1, Gobbetti E. 2, Marton F. 2, Ponchio F. 1, Scopigno R. 1 (2003)
Planet-sized batched dynamic adaptive meshes (P-BDAM)
in VIS 2003 - IEEE Visualization 2003, Seattle, Washington, 24-24 Oct. 2003
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Cignoni P. 1, Ganovelli F. 1, Gobbetti E. 2, Marton F. 2, Ponchio F. 1, Scopigno R. 1 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

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Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

This paper describes an efficient technique for out-of-core management and interactive rendering of planet sized textured terrain surfaces. The technique, called P-Batched Dynamic Adaptive Meshes (P-BDAM), is based on BDAM structure. Data is partitioned into a set of BDAM tiles, each of them constituted by a pair of geometry bintrees of small triangular patches and an associated texture quadtree. Each triangular patch is a general triangulation of points on a displaced triangle. The proposed framework introduces several advances with respect to the state of the art: thanks to a batched host-to-graphics communication model, we outperform current adaptive tessellation solutions in terms of rendering speed; we guarantee overall geometric continuity, exploiting programmable graphics hardware to cope with the accuracy issues introduced by single precision floating points; we exploit a compressed out of core representation and speculative prefetching for hiding disk latency during rendering of out-of-core data; we efficiently construct high quality simplified representations with a novel distributed out of core simplification algorithm working on a standard PC network. (literal)

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