FSX/P3D. REX is introducing their latest enhancement: Soft Clouds which is the new volumetric-like soft cloud texture add-on for This soft cloud pack gives a true volumetric feel to your flight simulator clouds. REX Soft Clouds takes advantage of the core features of PREPAR3D v2 while realistically enhancing the FSX, and PREPAR3D v.1.4 cloud environment. This package is compiled from years of feedback from current REX customers to meet a specific demand! According to the product page, you will truly experience volumetric haze and fog as never before seen within a flight simulator environment. For more information, click the source link below.