Re: [Flightgear-devel] Local weather: Clouds redrawn
On Thu, 11 Nov 2010 07:58:08 +0100, fiers...@zonnet.nl wrote in message 4cdb9400.1090...@zonnet.nl: I limited the frame rate to 30, used a smaller window. No difference. ..any change when you play with X Window frame rates and X desktop size? _They_ are still drawn at your full X Window xorg.conf Modeline controlled speeds, even when you play with FG frame rates and FG window sizes, and both X and FG are drawn by the same iron. Also check that you use the same color space for these 2. However, I noticed that with fewer clouds the effect disappeared. There seems to be a relation with cloud density. ..very possible, and at least a symptom. Another thing I noticed: While I am changing the viewing angle, the log window show errors. First a lot of Warning: TangentSpaceGenerator: unknown primitive mode 9 followed by several lines of Unknown Chunk: ***UNKNOWN*** (0xA08A) I assume this has something to do with the scenery. ..guess so, dunno the details, obivously when you zoom out, FG sees more scenery, zooming in, less, and with more detail, if you have _and_ load high detail models. Could it be related? ..dunno really, in my case I saw random texture holes flicker white, and I was at the card's 250MHz bandwidth limit trying to push 2048x1536x32|24@59Hz into the screen wire, it went beyond the FG window and all over the X desktop, I believe it was when I put my first Radeon 9250 into my Athlon XP 3000+ box, it's been a coupla years since it got my Radeon 9800Pro. (Or was that when FG messed up X diagonally on it?) m Op 10-11-10 19:01, Arnt Karlsen schreef: ..test ideas; cap your FG at 40fps, or back off a wee bit on your X framerate. X and FG window sizes? -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...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. -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
On Thu, Nov 11, 2010 at 6:16 PM, Arnt Karlsen a...@c2i.net wrote: On Thu, 11 Nov 2010 07:58:08 +0100, fiers...@zonnet.nl wrote in message 4cdb9400.1090...@zonnet.nl: I limited the frame rate to 30, used a smaller window. No difference. ..any change when you play with X Window frame rates and X desktop size? _They_ are still drawn at your full X Window xorg.conf Modeline controlled speeds, even when you play with FG frame rates and FG window sizes, and both X and FG are drawn by the same iron. Also check that you use the same color space for these 2. Uh, what? Tim -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
On Thu, 11 Nov 2010 19:26:04 +0100, Tim wrote in message aanlktikrympzsrjy8ontu7vq8lv-o2tjr+rqqax4o...@mail.gmail.com: On Thu, Nov 11, 2010 at 6:16 PM, Arnt Karlsen a...@c2i.net wrote: On Thu, 11 Nov 2010 07:58:08 +0100, fiers...@zonnet.nl wrote in message 4cdb9400.1090...@zonnet.nl: I limited the frame rate to 30, used a smaller window. No difference. ..any change when you play with X Window frame rates and X desktop size? _They_ are still drawn at your full X Window xorg.conf Modeline controlled speeds, even when you play with FG frame rates and FG window sizes, and both X and FG are drawn by the same iron. Also check that you use the same color space for these 2. Uh, what? ..last time I ran FG, I found ut it ran 16 bit colors on my 24|32 bit X, I didn't add the --bpp=depth Specify the bits per pixel, and on ATI cards it used to matter. -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...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. -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
Thorsten asked me to switch off xxx-loop-flags in /local-weather/ to rule out Nasal. Set to zero: buffer-loop-flag = '0' (double) convective-loop-flag = '0' (double) dynamics-loop-flag = '0' (double) effect-loop-flag = '0' (double) housekeeping-loop-flag = '0' (double) interpolation-loop-flag = '0' (double) lift-loop-flag = '0' (double) tile-loop-flag = '0' (double) timing-loop-flag = '0' (double) wave-loop-flag = '0' (double) To make that point very clearly: These loop flags determine if particular Nasal code of local weather runs and does administrative tasks. There is within local weather a subsystem which does similar things to what is seen in the video, asymmetric buffering, i.e. it removes clouds not currently in the visual field and some distance away from the scenery and re-inserts them if the view angle changes. My initial suspicion was that this subsystem is running wild - but setting the flags to zero and thus ending the Nasal loops (in particular buffer and housekeeping) would have 'frozen' the cloud configuration, i.e. it should have left clouds in an angular wedge visible and clouds everywhere else invisible with no loading/removing going on (I have checked that on my system that is indeed what happens). So since the effect persists even in the absence of any running weather-related Nasal code, I deduced it must be something else. Also, I am unable to reproduce the problem on either today's GIT or my old 2.0.0 binary. Maybe someone else has a bright idea... * Thorsten -- The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book Blueprint to a Billion shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
On Wed, 10 Nov 2010 14:00:02 +0100, fiers...@zonnet.nl wrote in message 4cda9752.3020...@zonnet.nl: Hi All, I have been in an exchange of messages with Thorsten (http://www.flightgear.org/forums/viewtopic.php?f=5t=7358p=101746#p101746 http://www.flightgear.org/forums/viewtopic.php?f=5t=7358p=101746#p101746) about a problem that I have with the local weather in GIT versions (all GIT versions lately in fact). Clouds are drawn and I can wait for that initially. But when I change the angle of view, clouds are drawn for the new angle of view. When I 'turn my head'back to the previous angle, the clouds that were already drawn are gone and get redrawn. The same clouds in the same place. In this video, you can see for yourself what I mean: http://www.easy-share.com/1912919971/Clouds03.mpg Needless to say this is bad for realism. My FPS is not a problem. The effect occurs when the frame rate is above 40 fps. ..test ideas; cap your FG at 40fps, or back off a wee bit on your X framerate. X and FG window sizes? My machine is a 4 core (8 threads) 12GB ram machine running 64b Linux and an nVidea9800 graphics card. FGFS is run in mulithreading mode. I am flying as I type this. No processor is 100% busy and memory consumption is only 2.2GB (of which 1GB for fgfs) in total. I have 59 fps at this moment. ..it _could_ be your video card is the bottleneck here, I had a similar problem (angular white texture holes) that I cured easing my X framerate down from 59Hz to 58.8Hz. -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...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. -- The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book Blueprint to a Billion shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
Thorsten asked me to switch off xxx-loop-flags in /local-weather/ to rule out Nasal. Set to zero: buffer-loop-flag = '0' (double) convective-loop-flag = '0' (double) dynamics-loop-flag = '0' (double) effect-loop-flag = '0' (double) housekeeping-loop-flag = '0' (double) interpolation-loop-flag = '0' (double) lift-loop-flag = '0' (double) tile-loop-flag = '0' (double) timing-loop-flag = '0' (double) wave-loop-flag = '0' (double) To make that point very clearly: These loop flags determine if particular Nasal code of local weather runs and does administrative tasks. There is within local weather a subsystem which does similar things to what is seen in the video, asymmetric buffering, i.e. it removes clouds not currently in the visual field and some distance away from the scenery and re-inserts them if the view angle changes. My initial suspicion was that this subsystem is running wild - but setting the flags to zero and thus ending the Nasal loops (in particular buffer and housekeeping) would have 'frozen' the cloud configuration, i.e. it should have left clouds in an angular wedge visible and clouds everywhere else invisible with no loading/removing going on (I have checked that on my system that is indeed what happens). So since the effect persists even in the absence of any running weather-related Nasal code, I deduced it must be something else. Also, I am unable to reproduce the problem on either today's GIT or my old 2.0.0 binary. Maybe someone else has a bright idea... * Thorsten -- The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book Blueprint to a Billion shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
I limited the frame rate to 30, used a smaller window. No difference. However, I noticed that with fewer clouds the effect disappeared. There seems to be a relation with cloud density. Another thing I noticed: While I am changing the viewing angle, the log window show errors. First a lot of Warning: TangentSpaceGenerator: unknown primitive mode 9 followed by several lines of Unknown Chunk: ***UNKNOWN*** (0xA08A) I assume this has something to do with the scenery. Could it be related? m Op 10-11-10 19:01, Arnt Karlsen schreef: ..test ideas; cap your FG at 40fps, or back off a wee bit on your X framerate. X and FG window sizes? -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Local weather: Clouds redrawn
Ah. The warnings and errors in the log window are related to local weather. They do not appear until I use local weather. Op 11-11-10 07:58, fiers...@zonnet.nl schreef: Another thing I noticed: While I am changing the viewing angle, the log window show errors. First a lot of Warning: TangentSpaceGenerator: unknown primitive mode 9 followed by several lines of Unknown Chunk: ***UNKNOWN*** (0xA08A) -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
