Navigator and different level of "on-the-fly" generation

The navigator is implemented, and thanks to the graph of the road network, I can grab the containers near the camera without searching in all the road segments list. It is quite fast and efficient.

The navigator grab containers in many circles with different radius. Each radius has a generation level assigned. So I created the Context Updater which is a thread running in background, and generate/degenerate the shapes of the grabbed containers in fonction of their distance to the camera. This thread updates each time the camera moves.

The Context Updater can be late or killed because of the time and memory necessary to generate shapes. For exemple, in the video above, I can't get into the city centers because there are too many shapes to compute (100mo needed for only one high building). I will have to optimise my shape structure to avoid that problem.

For now, the Context Updater seems to work fine. It does the same job than a LOD system, but while a LOD show and hide different detailled versions of a model, my thread creates the content from a seed in real time, and degenerates it when it's not needed anymore.