Ok i did test just now. It'sreally better Just still 2 small bugs.
i removed totally skymaxx and re_downloaded (same version, but, to be sure ... ) and installed it again. When i'm prompted for the gizmo choice beta or stable .. i rember i choosed beta before (there's written with no stutter ) , so this time i choosed the stable version.
Was it this ? Now game run smooth, with shadows clouds too, no more stutter. i just unchecked lens flare and raised the clouds coverage to 16700
Note i let the lastest radeon drivers.
Two problems still there (but i can play anyway ).
- I had (like before this test, i forgot to mention it above) the smp windows alert that my graphics card ressources are low etc ..... this happened when the game was running fine a 45/50 fps, i played 15min more to see, no error or crash problem, fps were stable. I didn't checked the "dont repat" box, and never had it again.
- There still the fps drop with the smp window . Game drops immedialty to 7 fps when i open the cloud configuration window, even if i click nothing ! .
If i change something, ( it's hard to move cursors with so few fps ) , and then apply, the game totaly stop for 15/20 sec before the fps counter move again and stay to 7/8fps. I close the window and it goes immediatly back to the 45/50 normal fps for the game on my computer.
This is just with this windows, if i open the map in the game, the realweather connector window, all the smp windows for choosing clouds textures, all is fine.
I will do more tests playing. Thanks for reading and answering