5/1/2000Deepak Bandyopadhyay / UNC Chapel Hill 1 Computer Model‘l’ing of Fallen Snow Paul Fearing University of British Columbia.

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5/1/2000Deepak Bandyopadhyay / UNC Chapel Hill 1 Computer Model‘l’ing of Fallen Snow Paul Fearing University of British Columbia

11/21/2000Deepak Bandyopadhyay / COMP238 / Snow2 The Algorithmic Beauty of Snow “One of nature’s greatest beauties is the way fresh snow covers the world in a perfect blanket of crystalline white. It replaces sharp angles with gentle curves, and clings to surfaces to form ghostly silhouettes.”

11/21/2000Deepak Bandyopadhyay / COMP238 / Snow3 The Algorithmic Beauty of Snow Complex natural phenomenon Locally complex, globally apparently simple Combined effect of millions of crystals Snow movement - slip, fold, fracture, avalance Variable properties, on borderline –Fluids and solids –Rough/smooth, soft and powdery/hard and blocky –Predictable and random accumulation and motion

11/21/2000Deepak Bandyopadhyay / COMP238 / Snow4 Why Auto Snow Generation First work on thick snow pack modeling Gives a tool to animators to add snow to any scene –Previously, added it manually; tedious & inaccurate Integrated into overall animation pipeline –object mesh gets augmented with snow surfaces Keep control over quality based on time available for modeling (progressive) and importance assigned to parts of the scene.

11/21/2000Deepak Bandyopadhyay / COMP238 / Snow5