Prepar3D: Comparison of v2.2 cloud.fx vs v2.3 vs volumize mod

As many are finding out, Prepar3D (P3D) version 2.3 has an updated cloud rendering system at work. Most of that work comes from the cloud.fx file, which is located in your installation directory in the “ShadersHLSL” file.

This issue is widely discussed on both the Lockheed Martin ums AVSIM. From doing some reading there the following has been concluded (to this point). Version 2.3’s cloud system that involves the cloud.fx has extra “features” shadows (clouds casting shadows on the ground) in version 2.3, as well as methods to give them more volume, called volumizing. Continue reading