The events of December 2001 seemed to transform Argentina’s international status from poster child to basket case. Throughout the 1990s, Argentina had been widely hailed as a case of successful market reform under democratic government. The radical economic transformation undertaken by the government of Carlos Saúl Menem had ended hyperinflation and restored economic growth, while the country e...

Realistic rendering of sky scene is important in virtual environment. Traditional methods are mostly based on skybox, thus failing to realistically simulate the change of sky scene under different weathers and conditions. In this paper, a new sky light model under different weathers for virtual environment is proposed. We first analyze the atmosphere characters of sky scene, and calculate the l...

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