My FSX runs OK, about 20-25 FPS.Intel Pentium D 840 3.2 Ghz Dual CoreNVidia GeForce 6800 256 MB Video Ram2GB DDR2 RAMWindows XP with SP2Latest DriversAll is well except for if you look at the attached picture you will see the lower cloud layer is right up against the mountains and as I fly along the border where the clouds meet the mountains they are very "twitchy" (for lack of a better word). I have tried maxing weather settings to lowering them to minimal and the same problem still occurs. I have not yet installed ActiveSky into FSX yet, but I was wondering if that might cure the problem or is it a driver problem? Any help is greatly appreciated. Thanks,Darren

Hi Darren,It is the same problem as in FS04; when cloud textures touch ground textures the cloud textures are going to twich. This will need to be a texture fix by somebody down the road. There is really no "weather" fix for this.Hope this helps,Jimhttp://www.hifisim.com/Active Sky V6 Development Team Active Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter: http://www.jdtllc.com/AirSource Member: http://www.air-source.us/FSEconomy Member:http://www.fseconomy.com/

I remember this being an issue in FS9, but here in FSX it is very extreme. Like it makes flying so unrealistic. It could be described as "snow" or static from the television when it isn't plugged into cable.

Hi,So do the edges twitch or that whole cloud layer distorts?Jimhttp://www.hifisim.com/Active Sky V6 Development Team Active Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter: http://www.jdtllc.com/AirSource Member: http://www.air-source.us/FSEconomy Member:http://www.fseconomy.com/

Sorry for not being so clear. Basically the entire cloud layer distorts. Like Isaid the best way to describe it would be television "snow"/static. It isn't just the edges... It is really very annoying. It is especially bad at dusk/night. If there was a way to raise the offending cloud layer above the mountain peaks it might not be so bad...

Hi,No, because on the next weather refresh things would return to normal. Not sure about this. Video drivers up to date?Thanks,Jimhttp://www.hifisim.com/Active Sky V6 Development Team Active Sky V6 Proud SupporterHiFi Beta TeamRadar Contact Supporter: http://www.jdtllc.com/AirSource Member: http://www.air-source.us/FSEconomy Member:http://www.fseconomy.com/

Hi,Not sure here... the entire layer is going static? Never seen that effect, but it appears the layer in question is actually a visibility ceiling depiction inherent to FSX. Not much that can be done here to change the vis layer besides increasing min visibility in AS options. I would guess the "static" is most likely a graphic glitch brought on perhaps by the driver. Running ATIX800 and N7900GT here and have never experienced that. Edges of vis layer flickering IS something experienced along terrain which is unavoidable for the most part until we can come up with a workaround (working on it). But this does not explain a "static/snow" effect of the entire layer.Best,

I've seen this effect occur with my ATI x850xt card from time to time if I have z-buffer compression turned on. Having the driver compress it helps with fps a bit, but as polygons intersect at great distances from the camera, such as what you're seeing there, that flashing will occur. If you fly very close to the haze layer does that flickering reduce somewhat? It should. Z-buffers normally give a progressive priority to objects that are closest to the viewer. If they didn't our plane's wings might flicker where they intersected the fuselage. I'm sorry, I'm not familiar with nvidia driver settings, having only used ati, but maybe check and see if you have any z-buffer control options. Going to an uncompressed 32bit z-buffer would probably alievate the issue if you have that option, or at least reduce the effect considerably. If your drivers don't have the option, I'd bet rivatuner does.Basically this flickering is likely caused by the buffer not having enough resolution, and it ends up rounding the vertex positions of the haze layer polygons to the closest value that fits in its limited number of slots. Where it intersects the terrain it gets confused about who should be in front, cloud or ground, and makes up its mind differently every frame because your position relative to them is constantly changing. If you pause the sim, or go to slew mode, and don't move the camera view, it probably stops flickering. If the *whole* haze layer is flickering at once though its probably being rendered twice on top of itself, or rendering two copies of the layer very very close to each other, no clue why though. Another fix would be finding out which texture it uses and replacing it with a black texture with zero alpha channel data. You'd lose the haze layer, but also the flickering. It can be turned off in activesky as well, but I've found weird visibility anomalies result from doing so.Z-buffer precision has been an issue ever since games went 3d. You don't ever see this problem in first person shooters as the z-buffer only has to deal with objects over a small distance, a virtual mile at most. In flight sim it has a much bigger problem to deal with.Sorry for the long winded post, hope that helps. :)