An Interactive Introduction to OpenGL Programming
An Interactive Introduction to OpenGL Programming
An Interactive Introduction to OpenGL Programming
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Homogeneous Coordinates<br />
– each vertex is a column vec<strong>to</strong>r<br />
⎡x⎤<br />
⎢ ⎥<br />
⎢<br />
y<br />
v r = ⎥<br />
⎢z<br />
⎥<br />
⎢ ⎥<br />
⎣w⎦<br />
– w is usually 1.0<br />
– all operations are matrix multiplications<br />
– directions (directed line segments) can be represented<br />
with w = 0.0
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