SceneGraph: forgot to initialize variables.

Really need them to be computed from the matrix.

src/SceneGraph/Camera3D.hpp

@@ -24,7 +24,7 @@
 
 namespace Magnum { namespace SceneGraph {
 
-template<class T> Camera3D<T>::Camera3D(AbstractObject<3, T>* object): AbstractCamera<3, T>(object) {}
+template<class T> Camera3D<T>::Camera3D(AbstractObject<3, T>* object): AbstractCamera<3, T>(object), _near(T(0)), _far(T(0)) {}
 
 template<class T> Camera3D<T>* Camera3D<T>::setOrthographic(const Math::Vector2<T>& size, T near, T far) {
     /** @todo Get near/far from the matrix */