22 Jun
2022
22 Jun
'22
2:28 p.m.
ok ummmmmmmmmmmmm camera has one coordinate system, of where it is and where it is looking. this seems at first a fine coordinate system for objects in its field of view. if it aims along an axis, that's the depth axis. ok ummmm to express just a vector translation relative to something, you subtract it. i think the matrix solution involves a matrix inverse. you can express translation via a matrix multiplication, so likely you express an entire transformation --- yes! that's how rotation works! -- yay, via matrix multiplication. and then you invert it.