SkyMaxx Pro is a joint project between Sundog Software and Maxx-XP. This is a big upgrade to SkyMaxx Pro, and will be offered free of charge to existing SkyMaxx Pro 4 customers running X-Plane 10 or X-Plane 11. Here are some examples of the the extended cloud draw area that mitigates the 'box of clouds around my plane' effect. Its looking good, and Im getting higher frame rates than with the previous version at the same plugin settings. This results in better blending and color continuity, which makes the clouds seem much more natural and realistic. Spent just a little time with the SkyMaxx Pro 4.6 update today. The screenshot above shows what you can expect.

Accurate moon phases and orientation of the moonīy replacing X-Plane’s skies with our own, it enables us to make the lighting on our clouds more consistent with the skies you see behind them.Our own ephemeris model, for accurate placement of the sun, moon, stars, and planets at night.New, much-improved cloud textures for “crisp” and “soft” cumulus clouds.More variety of cloud shapes and positions.

More realistic and distinctive representation of “HD cloud puffs” stratiform clouds.

Stutters with high cloud draw area settings reduced.

Improved blending of distant clouds into the sky.

Procedural sky box (based on the Hosek model) to accurately simulate sky colors for any time, place, and weather.

Our SkyMaxx Pro add-on for the X-Plane flight simulator is gearing up for a big update version 4.5 is in round 2 of beta testing as I type.

Skymaxx pro 4.5 screenshot comparison