Math/Matrix4: Fix computations. Sometimes some values can be really small (and very close to zero) without being null.
Math/Matrix4: Fix computations.
Sometimes some values can be really small (and very close to zero) without being null.


Former-commit-id: 932160043e4eb4094c7234f8cf4eb7c212966678
DigitalPulseSoftware/NazaraEngine