CST 325 - Module 3

 Week 3,

This week serves as another refresher, only this time it is centered around matrices and how to transform them. In short, we are able to use an identity matrix (when multiplied, no changes occur) along with translation, rotations and scale matrices. Also worth noting, is we can borrow another "dimension of the matrix making them a 4x4 matrix which helps us with performing matrix translations. One major key point with the matrices is performing the matrix multiplication in function notation "right to left", which depending on the results you want in graphics, can sometimes be a bit confusing. Another key point in the lectures is the gimbal lock, where multiple rotations can result in two axes rotating in the same direction resulting in a loss of degree of rotation. There is much more to consider when using matrices, but I'll cut it short here.

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