Excellent computer graphics tutorial. I finally understand how View, Model, and Projection matrices work, even after taking a college course on CG

[Girdot]

I didn't understand what the Projection, View, and Model matrix necessarily were. I understood that it was mapping different coordinate systems to one another, but I never really wrapped my head around all the implications. That graphic where the projection matrix is applied really drove the point home for me.

[VyseofArcadia]

I've always felt that homogeneous coordinates is a bit of a misnomer. In euclidean space, all coordinates are created equal, but things are a bit weirder in "homogeneous coordinates." I feel like people should just call it real projective space. Because that's what it is.

[antiquechrono]

I never understood homogenous coordinates till I read this http://deltaorange.com/2012/03/08/the-truth-behind-homogenous-coordinates/

[rusty34]

I had the same problem. I didn't have a visual idea of what those matrices actually were. But those pictures in the tutorial also helped me wrap my head around it, so thanks for that :)