Texture filter for dark area & partially visible insects

[HydrolienF]

• [ ] Display dark area aways from player with an other technique (less lag at loading / more possibility of multiplayer / player helped by AI)
• [ ] Display part of insect when they are partialy visible instead of all or nothing.

[HydrolienF]

It's harder than I thoth because of zoom & game camera not fitting size of screen. It will be add later.