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Introduction to OpenGL Prof. Dr.-Ing. Lars Linsen - Faculty.jacobs ...

Introduction to OpenGL Prof. Dr.-Ing. Lars Linsen - Faculty.jacobs ...

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Jacobs University<br />

Viewing transformations<br />

• Position the camera/eye in the scene<br />

– place the tripod down; aim camera<br />

• To “fly through” a scene<br />

– change viewing transformation and<br />

redraw scene<br />

gluLookAt( eye x , eye y , eye z ,<br />

aim x , aim y , aim z ,<br />

up x , up y , up z )<br />

– up vec<strong>to</strong>r determines unique orientation<br />

– careful of degenerate positions<br />

Visualization and Computer Graphics Lab<br />

320621: Advanced Visualization Lab 44<br />

tripod

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