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Prostorsko modeliranje oblakov v računalniški grafiki : doktorska disertacijaLipuš, BogdanV doktorski disertaciji se ukvarjamo s prostorskim modeliranjem oblakov. Še posebej nas zanimajo implicitni gradniki, opisani z implicitnimi funkcijami. Pri prostorskem modeliranju oblakov lahko ... uporabimo različne povezovalne funkcije. Odkrili smo, da so neznatne razlike med njimi. Enostavna linearna povezovalna funkcija zadosti vsem lastnostim, ki jih želimo pri slikah oblakov. Trenutne tehnike združevanja implicitnih gradnikov so večinoma izdelane za modeliranje ploskev, kjer so pomembne le meje objekta, določenega z implicitnimi gradniki. Nasprotno je pri prostorskem modeliranju pomembna tudi notranjost, zatorej potrebujemo drugačne, bolj primerne tehnike za združevanje implicitnih gradnikov. Najprej razpravljamo o nepravilnostih, ki se pojavijo s trenutnimi tehnikami, potem pa predlagamo novo tehniko združevanja implicitnih gradnikov, posebej primerno za prostorsko modeliranje (t. j. modeliranje oblakov). Z njo odpravimo omenjene napake in dobimo boljše rezultate. Pri Ebertovem modelu so vsi parametri modela oblaka določeni globalno za vse točke v prostoru. V doktorskem delu uvajamo nov pristop z lokalnim določanjem parametrov modela oblaka. Z njim lahko učinkoviteje predstavimo raznolik videz v različnih delih oblaka. Vrednost parametra v poljubni točki v prostoru oblaka je določena z interpolacijo med vrednostmi v določenih točkah, ki so lahko podane kot mreža točk, središč implicitnih gradnikov ali območno odvisnih točk. Ustvarjene slike kažejo, da nov pristop lahko vodi k bolj raznolikim oblakom, pogosto videnim v naravi.Type of material - dissertation ; adult, seriousPublication and manufacture - Maribor : [B. Lipuš], 2005Language - slovenianCOBISS.SI-ID - 9575446
Author
Lipuš, Bogdan
Other authors
Guid, Nikola
Topics
računalništvo |
računalniška grafika |
računalniška animacija |
naravni pojavi |
prostorsko upodabljanje |
implicitne funkcije |
doktorske disertacije |
computer graphics |
computer animation |
natural phenomena |
volume rendering |
implicit functions
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Central Technological Library of the University of Ljubljana |
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0000059287/0000000230 Skladišče IN: 320050458 59287/230 Skladišče IN: 320050458 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Lipuš, Bogdan | 21318 |
Guid, Nikola | 03792 |
Source: Personal bibliographies
and: SICRIS
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