I've noticed something strange lately, when flying with default "Fair Weather", and cloud draw distance set anywhere from 80 - 110 miles, from time to time I'll see a cumulus cloud that will "vanish" if I look slightly to left or right. Then when I look back straight ahead, it reappears right where it was before.Very annoying! Anyone else have this happening or know how to fix? I'm not using any texture mods at all, 100% stock install in that respect. Using 2x XFX 7900GTX with ForceWare 93.71.

Yeah I notice that too. I made a post on another forum about it but I didn't get much of a response from anyone. I made a video to demonstrate the problem too.http://www.fs2004.com/forums/index.php?showtopic=95197

I've noticed it too, very annoying.....Regards, KendallDell 8400 3.2 GHZ H.T.800 FSB/2MB L22 GB 533 DDR2X800XT 256MB/Catalyst driver - 6.9's6x Adaptive AA/16x HQ A/FIntegrated SoundDual Monitor: Dell 2405/1905CH Yoke/Pedals

Yup same problem, and sometimes worse. Occasionally when I pass through a visibility layer, stratus clouds explode into a starburst pattern for up to a minute. I need to get a screen of that next time it happens, its pretty insane.Same drivers too, 7900GTO with 93.71's.

Glad to know I'm not alone in this, thought at 1st that I was having flashbacks to the pot-smoking days of my youth...Haldir, glad I haven't seen your "starbursts" or I would have been convinced of it ;)

Are you guys flying over the Bermuda Triangle?Stelios

I too have seen the vanishing/reappearing clouds thing.I think it has something to do with the sprite-based cloud system.It would be nice, if it could be fixed in some way. If it is this general, has anyone mentioned it at [email protected]? Or is this simply a case of use needing newer/different drivers?RhettAMD 3700+ (@2530 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 3-3-3-8, WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian

Well, thought I it was an nvidia driver issue but just checked with two friends who use old and new ati cards, and they both have the same problem, so it's definitely FSX's own issue. I have sent a bug report to "tell_fs" about it, along with about 100 other bugs haha, so hopefully they'll fix it, though they may be saying "oh, not THAT guy again, ugh." ;)Seems like it's occasionally getting confused about whether a cloud is on or off the screen, and clips it out too early, especially if you're trying to fly through the cloud. It doesn't happen all the time, but it does happen often enough per flight to notice, especially for track-ir users.

Confirmed. Along with several other quirks with the cloud engine (if there's such a thing), including the low altitude haze (a very good addition however) whith razor sharp edges along the relief. Cumuli touching the ground in a straight line in higher altitude airports (e.g. Cheyenne). Weird appearances/disappearance when cloudscape a little complex.(You should consider adding a corona radiata to your bus)

"Confirmed: Along with several other quirks with the cloud engine (if there's such a thing), including the low altitude haze (a very good addition however) whith razor sharp edges along the relief."All of the above, but generally flying toward a large, grey cu cloud, covering perhaps 20-30 degrees of an arc. Glance off to either side and it's gone: look back - it's there, and VERY noticeable. ATI card, latest drivers, TrackIR. ASv6 not attached. Cloud draw distance immaterial. Happened before and after Matt Fox texture size reduction.

Wyoming, I've seen that razor-sharp haze too, flying out of Denver with real-world weather on. Once I got above it, looked like somebody had rammed a giant horizontal sheet of translucent white plywood thru the hills amd mountains. Was so ugly to look at, I went back to "Fair Weather"...Had another interesting experience with the haze this afternoon, flew out of Patrick AFB up to Cape Canaveral to check out the shuttle launch facility. Used real-world weather, scattered clouds and light to moderate haze. Looked really fine since there were no mountains for it to cut in half :-lol but the prob was, the view out the cockpit would "flicker" on a very regular basis. About every 5 or 6 seconds it was like the haze would clear for a split-second then come back. Soon as I went back to "Fair Weather" it stopped.I think the "weather engine" needs some work...

Been doing some testing with this problem and have *maybe* come across something.When you pass through a medium sized or larger section of clouds, the sim is forcing visibility to a very low value briefly, and then scaling it back out again, which causes my lovely starburst problem. Doesn't occur unless passing through a cloud.I also noticed that the disappearing clouds problem is almost non-existant when you fly with only one visibility layer, and you're in it. ie: the visibility ceiling is above you. Flew around the alps like this for hours tonight and could not get a single cloud to pop in or out.Can anyone else test that out? Make piles of cloud layers, but make only one vis layer and set it up at like 50,000 feet or something. Then fly around a bit. I can't get clouds to flash in and out with such settings. Having a low vis layer below, or real world weather stations with variable visibility seems to exacerbate the problem.Next up, forcing shaders to low level and see if its the 2.0 stuff that's causing it.PS: My oh so lovely cloud explosion problem, and this is a mild one, sometimes the whole screen goes mental. Anyone else seen this? It has all the hallmarks of a vertex drawing order problem, but only clouds do it.http://forums.avsim.net/user_files/162189.jpg

I've never seen that cloud effect.(Now, if you don't mind my asking, that airplane is a U.N. paintjob, but what type of plane and whose model is it?)RhettAMD 3700+ (@2530 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 3-3-3-8, WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian

Perhaps it is the sword of (name your favorite angel) protecting you from demons?Thomas[a href=http://www.flyingscool.com] http://www.flyingscool.com/images/Signature.jpg [/a]I like using VC's :-)N15802 KASH '73 Piper Cherokee Challenger 180

Thats a King air from Aeroworx.Manny