matrix-math

Confirm I understand matrix determinants

Basically I have been trying to forge an understanding of matrix maths over the last few weeks and after reading (and re-reading) many maths heavy articles and documentation I think I have an adequate understanding, but I just wanted to make sure! The definitions i have ended up with are: /* Minor ----- -A determinant of a sub matri...

openGL camera zoom / scale around point and pan

I've implemented a camera (model view) in my 2D opengl application and am having some issues with scaling around a point and also scaling around a point in combination with panning. Both work with the mouse. Panning works with a mouse drag, and scale to point zooms in/out around the current mouse location. Panning works fine as long a...