"The Matrix" conjures visions of Keanu Reeves as Neo on the silver screen, but matrices have a very real use in manipulating 3D graphics. John Chapman explains the true power of the matrix.

Graphics series with John Chapman:

1/ Universe of Triangles :    • A Universe of Triangles  Computerphile  
2/ Power of the Matrix :    • The True Power of the Matrix (Transfo...  
3/ Triangles to Pixels :    • Triangles to Pixels  Computerphile  
4/ Visibility Problem :    • The Visibility Problem  Computerphile  

5/ Light and Shade in Computer Graphics: Coming Soon

John Chapman is a graphics programmer who blogs here: http://www.johnchapman.net

How NOT to store Passwords:    • How NOT to Store Passwords!  Compute...  

Addendum at 12:35 the formula should read: x*0+y*0+1*1

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  / computer_phile  

This video was filmed and edited by Sean Riley.

Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels