what's going on in the debugger.

that it never happens again, and unit tests in case it happens again.

MASK to SWIZZLE in the vector templates, rename matrix<> to mat<> for
consistency, implement transposition for all matrix sizes, make matrix
columns private and only accessible through operator[].

C++ containers.

scene so that g_scene can be deprecated later.

Lock/Unlock mechanism safer, and implement the rule of three.

objects themselves.

and the codec logic.

quaternion, improve quat::rotate(vec3, vec3) to gracefully handle corner
cases, and add unit tests for all of these.

Added workbench, for personnal experimentation.