DiRT Rally snow and water on windshield ??

[jacken64]

Is it possible to modify DR so if I run into the snow bank i will get snow / water droplets on windshield
It would be very realistic

 

[TemplarGFX]

Unfortunately I do not think this is possible. The current rain-on-the-window effect is triggered by weather type, rather than physical particles hitting the window.

EDIT -- Actually thinking about this, it does happen when you hit a water hazard. Maybe that can be leveraged somehow...