Re: [Flightgear-devel] Shaders flicker
On Wed, 20 Apr 2011 02:39:42 +0200, Robert wrote in message BANLkTi=osyhxkaoky-c8pa71sqk1t3p...@mail.gmail.com: 2011/4/20 Robert dogg...@googlemail.com here is a screenshot: http://img251.imageshack.us/i/fgfsscreen077.png/ ..hum, bright white nose, external screen shots? If you ask me it looks pretty much like z-fighting artefacts. Maybe a shader that doesnt account for near and far frustum? I had to fly pretty low to cause this flickering. ..could be it takes a system load to provoke this, try pile up a bunch of web browser tabs with e.g. flash movies to eat away resources we normally want to keep for FG and see what happens. Also there is a flickering problem with panel instruments and cockpit itself, ..that's easily a 2'nd issue. ;o) But in about 300 screenshots I couldn't catch this issue because it lasts only a few frames and I don't have the reaction time of a machine :) ..piling up loads, helps. I think a video would be better to record the flickering on the cockpit-panel. ..agreed ;o), url? -- ..med vennlig hilsen = with Kind Regards from Arnt Karlsen ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Shaders flicker
On Tue, 19 Apr 2011 04:13:45 +0200, Robert wrote in message banlktim5dkxvgxyh5owvjwrcv23odt6...@mail.gmail.com: I also have the flickering issue with shaders on. ..white flickering? (ATI/AMD, ..which ATI/AMD? Debian, ..which Debian, Squeeze? fglrx) ..url to screenshots? ..try the radeon and radeonhd too, they may be different and I wanna see _how_ they are different. On my system the problem occurs at low framerates (30-35 fps) caused by the scenery. On lighter airports I get 60-75 fps and the problem seems to be gone. ..a WAG is you run your graphics card too hard, try throttle it at e.g. 30fps, so it _has_ time to draw every frame. I hit that one trying to draw 59.something fps of 2048x1536x24bpp on a 9250 (or a 9800?) AFAIR, backing off to 58.8fps with a new modeline, fixed my white flickering, it needed a few more milliseconds to color each frame properly. David, maybe someone of us should file a bug report here: http://code.google.com/p/flightgear-bugs/issues/list ..done, #264@ http://code.google.com/p/flightgear-bugs/issues/detail?id=264 -- ..med vennlig hilsen = with Kind Regards from Arnt Karlsen ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Shaders flicker
here is a screenshot: http://img251.imageshack.us/i/fgfsscreen077.png/ If you ask me it looks pretty much like z-fighting artefacts. Maybe a shader that doesnt account for near and far frustum? -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Shaders flicker
I had to fly pretty low to cause this flickering. Also there is a flickering problem with panel instruments and cockpit itself, But in about 300 screenshots I couldn't catch this issue because it lasts only a few frames and I don't have the reaction time of a machine :) I think a video would be better to record the flickering on the cockpit-panel. 2011/4/20 Robert dogg...@googlemail.com here is a screenshot: http://img251.imageshack.us/i/fgfsscreen077.png/ If you ask me it looks pretty much like z-fighting artefacts. Maybe a shader that doesnt account for near and far frustum? -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Shaders flicker
Hi developers, I have a new computer, installed FG on it and have a problem with the graphics. The problem (beside missing runway lights) is that surfaces generated by a shader will flicker. This applies to terrain and aircraft instruments, trees and the Crop texture however do not flicker. The flicker disapears when I switch off Material shaders in the Rendering menu. It seems not to appear everywhere, but only if custom scenery is near. When I tested today, it didn't happen at airports which do not have any buildings. You find screenshots here: http://www.flightgear.org/forums/viewtopic.php?f=37t=11686. I would appreciate any help. Cheers David -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Shaders flicker
David Glowsky wrote: Hi developers, I have a new computer, installed FG on it and have a problem with the graphics. The problem (beside missing runway lights) is that surfaces generated by a shader will flicker. This applies to terrain and aircraft Moin David, while I have no solution for the main problem, the following patch (kudos to Jester) helps here on my ATI to let runway lights shine as expected: http://git.overlays.gentoo.org/gitweb/?p=proj/gamerlay.git;a=blob;f=dev- games/simgear/files/simgear-radeon-fix-runway- lights.patch;h=a48c4bf62cd52ffe7f1c2c71dbb8f95ac41fbb09;hb=HEAD Chris -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Shaders flicker
On Mon, 18 Apr 2011 19:56:38 +0200, David wrote in message banlktimbxl03ofww5qsvqoygszwybhs...@mail.gmail.com: Hi developers, I have a new computer, installed FG on it and have a problem with the graphics. The problem (beside missing runway lights) is that surfaces generated by a shader will flicker. This applies to terrain and aircraft instruments, trees and the Crop texture however do not flicker. The flicker disapears when I switch off Material shaders in the Rendering menu. It seems not to appear everywhere, but only if custom scenery is near. When I tested today, it didn't happen at airports which do not have any buildings. You find screenshots here: http://www.flightgear.org/forums/viewtopic.php?f=37t=11686. ..first, try take the same screenshots with today's fg-git, the shaders _may_ have been fixed since you shot your shots. I would appreciate any help. ..I suspect FG shader bugs not properly supporting ATI hardware, most if not all FG developers have Nvidea graphics on closed source nvidea drivers and noton GPL nouveau, a quick test can be done with Knoppix: http://nouveau.freedesktop.org/wiki/ http://knopper.net/knoppix/knoppix64-en.html ..I'd like to see what happen when you do exactly the same things in FG as you did here, but running your box on Knoppix and installing the same FG in your Knoppix session. http://knopper.net/knoppix/index-en.html http://knopper.net/knoppix/knoppix64-en.html ..if you don't wanna touch your disks, run Knoppix in ramdisk and install the same version FG into your ramdisk session and then try take the same screenshots as you did on Wintendo and ATI's drivers. (Usb sticks and SD etc flash cards are other possible options.) ..boot it with 'knoppix toram ' and see what happens, if that fails to do what we want, try e.g. 'knoppix toram xmodule=ati ', more ideas to try append to the boot command: ftp://ftp.uni-kl.de/pub/linux/knoppix/knoppix-cheatcodes.txt ..xmodule's I'd like to see compared, is radeon, radeonhd, and ATI's own fglrx, and on Nvidea's, nvidea and nouveau. ..note that you _may_ have to use knoppix64 to boot a 64bit kernel on a 64bit cpu, and knoppix32 or somesuch to boot a 32bit kernel on 32bit cpus, I'm not up to date on current knoppix boot cheatcodes. _Play_around_. ;o) -- ..med vennlig hilsen = with Kind Regards from Arnt Karlsen ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Shaders flicker
I also have the flickering issue with shaders on. (ATI/AMD, Debian, fglrx) On my system the problem occurs at low framerates (30-35 fps) caused by the scenery. On lighter airports I get 60-75 fps and the problem seems to be gone. David, maybe someone of us should file a bug report here: http://code.google.com/p/flightgear-bugs/issues/list -- Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
