PrecipitFX
For FSX, it looks pretty good.
So lets start with FSX.
FSX Old snow
FSX NEW snow
More NEW snow
NEW rain
A side note on the rain - The rain looks MUCH better in action than it does in this picture.
As for Prepar3d.
It only works with "HDR Lighting" selected.
Prepar3d without HDR
P3d with HDR Lighting
Part of the improvement is because the images are darker with HDR. And, unfortunately, I don't like how dark it makes everything look.
All of those shots are daytime shots, including the last one (at the same time of day).
.
.
.
