Author: Ben Supnik

Stuck Throttle?

If your joystick throttle axis won’t move the throttle (but will move in the axis tab) it could be that the autothrottle is on – autothrottle state appears to be saved across sim runs and airplanes in X-Plane 10.  I am investigating this and we should have a fix soon, but in the meantime if you’re stuck, you may have to open a plane with an autothrottle on the panel (or use a key command) to turn it off.

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An Awesome NVidia Artifact

A number of users have reported “ghosting” with NVidia Windows hardware and X-Plane 10. The artifact typically looks like this:

What you’re seeing there is the scene from last frame being left around where the sky was supposed to be drawn, but was not.  As the camera moves, we get a trail of artifacts.

For a few days I couldn’t see this bug on my own system, and this afternoon I tried to reproduce it based a report from a user with the same hardware as my development machine.  So after a bunch of failed tries and scratching my head at the German version of the NVidia control panel, I was overjoyed to see this:

I mean, how cool is that!  That could be our new startup screen!  It’s like a giant 737 is going to pop up out of the screen and eat us all.  (Hint: if you are in the pit of a 747 and an airplane appears over the horizon that looks bigger than you from 20 miles away: run!)

It appears that this artifact is caused by turning on full screen anti-aliasing in the Nvidia control panel (with “override application settings”) but not in X-Plane.  My work-around: use “application controls” for the control panel and set FSAA in X-Plane itself.

Here’s another fun one:

This shows up with moderate global shadowing.  This shows up on the 285.62 NVidia drivers; the 280.62 and (for the very brave) 290.36 drivers don’t have this problem.

I don’t think there’s a moral of the story here; we’re still working through bugs, but I did find the bottom of my in-box, which I hope is an indication that the patches are helping at least some users.  There are a lot of different card/driver/OS combos, so working through all the combinations (as Windows X1000-users are finding) will take some time.

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What’s In my .Plan File?

A new beta is out – 10.03 beta 1 – release notes here.

I guess people don’t really have .plan files anymore, but here’s what would be on my short list if I had one, now that 10.03 beta 1 is out:

  1. Crash bugs and artifacts. We’re still seeing some of these, particularly on old hardware; I am still working my way through these.
  2. Third party compatibility.  10.03 beta 1 starts to fix some problems with older planes, but it’ll take a few more betas to work through these – I still have a long list!  Thanks to the aircraft authors that have sent bugs in.
  3. Performance.  I haven’t had a chance to dig in hard on this yet, but I have been logging bugs with some of the complaints that have come in.  I hope to be on performance in a big way in the next week.

 

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Airplane Authors: Please Let Us Fix a Few Bugs

A number of third party authors (bravely) promised X-Plane 10 updates to their airplanes.  And I believe that a tune-up to be X-Plane 10 compatible isn’t going to represent a lot of man hours.

That is, unless you try to do this job now.

I have a number of open bugs where version 9 airplanes don’t load quite right in X-Plane 10.  If you have an X-Plane 9 airplane and you try to work around these bugs, a few things will happen:

  1. You will only be able to work around some of the bugs, as others are pretty hard-baked into the sim.
  2. When I actually fix the bugs (in the next weeks) your airplane will be “broken” yet again, since “fixing” the bugs now means trying to make a right with two wrongs.

So third party authors: please do file bugs if you haven’t already, and give us a little time to work through them.  Please do not try to work around these bugs, only to have your airplane become “re-broken” when we get the sim corrected.

And users: please be patient with your third party airplane authors.  They can’t make their plane v10 compatible until we fix some bugs, and if they try they’re just going to get thrashed.

There are some things that do need to be reworked for version 10, particularly for HDR mode.  But a lot of the reports I get are just things that are funky in the sim.

How to File an Airplane Bug

Since I am getting deluged with bug reports, support requests, questions, etc. I want to describe the best way to get an airplane compatibility bug to us.  By following these guidelines, you’ll make it easier for us to kill off compatibility bugs fast.

  • Please file the bug only once.  If you have filed the bug and haven’t heard that it’s fixed, you do not need to tell us in every new beta that it is still broken.
  • File bugs via http://dev.x-plane.com/support/bugreport.html.  We can route this form to whomever we think is best suited to handle the bugs.  Please do not just email the last person you conversed with directly.
  • Please only file bugs if an airplane looks different in the latest X-Plane 10 build and X-Plane version 9.70.  X-Plane 9.70 is the version 9 release that we are targeting – no older version!
  • Please get us reproduction materials – preferably a complete ACF pack, and preferably a cut down one if it can be simplified.
  • Send us the v9 .acf file, before any modifications.  We want to see what your customers would have seen if they just tried to use the plane.  If you send us a version resaved in X-Plane 10, we don’t know what happened.
  • Please provide illustrations of how the plane should look in version 9 vs how it does look in version 10.  We need a reference point.
  • Please try to keep reproduction steps as short as possible.  If we have to make a 2 hours flight with 400 waypoints to see a bug, that’s a time sink for us.

A number of you have already sent us good bug reports – we will get to them as quick as I can.  If all goes well tonight my fires will be out and I’ll be able to jump into this shortly.

Posted in Aircraft, Aircraft & Modeling, Development, News by | 4 Comments

Reinstalling the Sim is NOT the Answer

If I could have a nickel for every email I see from a user who says “I have installed X-Plane from scratch 6 times, and it still does not work”, well, I’d have enough money to buy more servers to handle the download bandwidth.

If your copy of the X-Plane 10 demo is not working, please do not do a full reinstall.  It will not help.

You can run the X-Plane updater at any time.  The X-Plane 10 updater checks every single file in the install and replaces any file that isn’t exactly what it should be.  When the updater is done, you basically have a clean install, but at a fraction of the download.

The demo servers are starting to show lower load – please don’t re-download and kill the servers all over again.

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Where To Get Help, Where to File Bugs

Hint: not the comments section of this blog.  If you have not filed a bug but did write a comment, please do not assume that we know about it.

You can email tech support here: info@x-plane.com.

You can file bugs here: http://dev.x-plane.com/support/bugreport.html

If you file a bug an do not hear back from us immediately, please be patient; I am back-logged with reports right now, so if it is going to my part of the code, it’ll be a bit of a wait.

I will post more on reporting airplane compatibility bugs later today.

***EDIT*** Chris says: Please do not email Austin, Ben or Me directly unless we ask you to…Even if we’ve asked you to do so for a bug in the past, please do not email us directly for a new bug. Bugs need to go through our support channel. Ben wakes up to over 100 emails each morning…I can only imagine what kinds of emails Austin gets. This takes away precious development time.

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X-Plane 10.02 Beta 2 Is Here

You can update via the about box or the updater application.  If you update from the about box, the updater app may already be in your X-Plane folder, ready to use.

This build should hopefully fix any crashes and colored-triangle artifacts introduced by 10.02 beta 1; the smoke puff performance optimization wasn’t my best work.

Also your airplanes may have engines again, which is nice for flying, I’m told.

If you are getting a crash in 10.02 beta 2 but did not get a crash in 10.0, please file a bug ASAP!  (If you always get a crash, file a bug if you haven’t; we’re working through them.  But I definitely don’t want to go backward in terms of hardware support with the betas.)

Note: the torrent is still 10.02 beta 1, so you’ll want to run a quick update on it.  I’ll recut the torrent periodically, but I think it probably works better for everyone if the torrent can build up a bunch of seeders.

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We Have Our First Patch

Austin just posted an announcement.  The short version: we have the first patch to X-Plane 10.  You can read more about how to get the patch here.  A few key points:

  • You don’t have to re-download the whole sim!  You can simply run an update, which will get only the changed files.  Less than 150 MB, I think.
  • If you can’t run X-Plane 10 because the app isn’t getting along with your graphics card, you can still update – just run the updater directly.
  • We have posted a new torrent – zipped, so it should be smaller, have correct permissions, and not drive µTorrent nutty with too many files.

Compatibility With Graphic Cards

I’ll try to post on-going status updates with regards to graphics card support; I’ve posted a chart on the wiki.  If you have gotten one of the cards for which the status is “unknown” to work, please post a comment.

The two cases that I believe we have fixed for the 10.02 patch are Intel HD integrated graphics and Radeon X1000 series GPUs – both were not functioning due to bugs in X-Plane (which were revealed by the particular capabilities of these cards).

I was surprised by how many reports of Intel HD graphics crashes we got but in hind sight it makes sense: everyone with a Core i3/i5/i7 chip has one of these GPUs, since it is built into the chip.  In some cases, users were running on the Intel GPU despite also having a real GPU, so even with the crash fix, those users will need to figure out how to change their default GPU.  (For a desktop this is usual a BIOS operation – for a laptop it’s usually black magic.)

I still have at least six different GPU crash cases that I am investigating, so there’s a lot of compatibility work to do.

The other major compatibility problem I am hearing about is just a slew of reports of weird stuff with NVidia GeForce cards.  Graphic artifacts, hangs, screen corruption, two copies of the app – you name it.  It’s going to take a while to figure out what’s going on.

Framerate and Performance

We put out X-Plane 10.02 to fix a few crash problems and cases of graphic corruption; there are only a few performance tweaks along for the ride.  The majority of performance work is still to come.  You may get a few fps back with AI planes, or if you have a Mac NVidia GPU.

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Torrent Issues

A few notes about the torrent.

First: the torrent contains a single FranceVFR custom DSF that is not present in the regular demo install.  This file is due to a mistake made by me while building the torrent; the FranceVFR team sent me the file to test v10 compatibility and I stupidly used the same version of X-Plane to build the torrent.  My gravest apologies to the FranceVFR team for not being more careful with their IP.

Second: if you can’t execute the apps on OS X or Linux, it’s because the permissions are not set correctly.  I have no idea why that happened – the permissions are correct in the source files.  There are two ways to fix this:

  1. The easy way: delete the apps, then run the X-Plane 10 updater for Mac, Win, or Linux.  By deleting the apps first you’ll get new ones from the net with correct permissions.  Or
  2. The nerdymanly way: chmod u+x X-Plane.app/Contents/MacOS/X-Plane in the terminal from the X-Plane demo directory.

This will fix the app bouncing and then disappearing.

Third: for some reason the torrent won’t finish on some torrent clients.  I have no idea what that’s about, the solution to all three problems for the next patch is: I’ll build a new torrent and zip it into one big file.

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A Few Settings Tricks to Try

For those who cannot wait to try to get X-Plane 10 to run fast, a few tips on how to ‘break down’ where a bottleneck might be:

  • Run with clouds vs. clear skies.  The clouds chew fill rate.  Are clouds the issue?
  • Turn down visibility – X-Plane 10 will run at 100 nm but some machines will die with this.  Does a low visibility help?
  • Turn off the AI planes.  Any better?  They take draw time when on screen and cores.
  • Turn down texture res if you haven’t already.  (Well, most people try that by default.)  Start with low settings and work your way up.
  • Try areas away from KSEA.  Compare down-town to rural, and different airports.
  • If you have an nvidia card before the 400 series, try running with –no_instancing from the command-line.  This can particularly help Mac users.

In most cases there is only one setting killing your framerate – find it, fix it, and things get a lot better…fix it and you’ll find those other settings you turned down can go up at least a bit.

The gotchas in v10 are definitely different from v9.  Shadows can kill your fps in a huge way – I’ll be spending a bunch of time tuning them to look better and kill fps less.  Turn water reflections down if you don’t need them – the “advanced” setting is frankly a bit pointless.  Turn off full screen anti-aliasing if you are going to run in HDR mode, then restart the sim.

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