Modelo para simulação em tempo-real de nuvens usando billboards

Abstract

The objective of this work is to present a model for generation and animation of skies, in

real-time, where clouds have a volumetric representation implemented using billboards.

Clouds illumination performed using vertex-shader and a technique of light absorption

similar to ray-casting algorithms. The main application of the model is for games and

interactive entertainment, where large areas of nature must be visualized in a realistic

representation. The main contributions of this work are: semi-automatic generation of

three-dimensional clouds models, cloud illumination using a technique of light absorption

to simulate dark areas of the cloud and the concept of climatic variation.