Re: [PD] pictures from a digital camera
[EMAIL PROTECTED] wrote: Thanks IOhannes and Frank ! So, if i understand (as my french-english is quite bad), there's no solution to get the gemwin on the external screen and the patch on the laptop screen, with well it says that you have known problems with your gfx card. that type of card. I had managed to display clone and extended screen. But this is what frank said: use clone; some (esp. older) gfx cards on laptops will do this in hardware (no drivers involved); you notice this, if you have a special key combination which you can use to switch between the various settings, regardless of the os you are running. under windows 2K (glups !) i can get an extended desktop and the video is rendered (for example, with VLC player) on the external screen. Maybe this because this is not OpenGL. In this case, couldn't it exist a trick to render yes; obviously non-openGL calls are rendered to the 2nd head; else it would be completely useless (always black ;-)) however, you should also be able to use vlc on linux on the 2nd screen. it as non-3D (wich doesn't interest me, i'm doing 2D with Gem, because i know well Gem is 3d; you cannot do non-openGL stuff in Gem (not totally true: the pix_ stuff is completely independent from openGL, but whenever you want to display it (within Gem) you are bound to openGL) it better) or something like passing it from Gem to pdp ? If I remember well the workshop i did, there's something like gem_to_pdp... Or should I use pdp in case of Gem ? yes that is an option: if you can stay within one library, i suggest to do so. converting data between Gem and pdp costs you time; so if you don't necessarily need a functionality that is only provided in Gem i would try to do it in pdp alone. however, afaik there _is_ one functionality that is only provided by Gem: [pix_video] is able to capture your DV-camera; [pdp_ieee1394] is (to my knowledge) only functional on os-x. the bridging objects are called: [gem2pdp] : convert the current rendering buffer of gem to a pdp-packet [pdp2gem] : convert the current pdp-packet into a pix [pix_2pdp]: convert the current pix into a pdp-packet About the Intel Graphics, I heard that Intel had just made their drivers more open, dont't they ? Do you think, there will be more support for these cards later with linux ? i am not sure whether this is an issue with the (software) driver or hardware. you could try to run Gem on the 2nd screen under w32 (if you still have it) and see what happens (and have a look at the cpu-meter, it might be that your system switches to software rendering on the 2nd screen, which still gives you an image, but at the cost of a rather high cpu load) if it is a hardware problem, then nobody will be able to help you. nota : excuse me, i send this mail to your personnal adress instead of sending it to the pd-list did you? mfga.sdr IOhannes ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pictures from a digital camera
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote: [EMAIL PROTECTED] wrote: that type of card. I had managed to display clone and extended screen. But this is what frank said: use clone; some (esp. older) gfx cards on laptops will do this in hardware (no drivers involved); Note that with the Intel chips or at least with their Xorg driver, you probably do *not* want to enable the Option Clone in xorg.conf. Even though this will make the second head (Pipe B) display a cloned mirror of what's on the first head, Pipe B then will not be able to use Video overlay functions (http://en.wikipedia.org/wiki/Video_overlay) according to the i810 manual page. Another note: I found several websites which state that enabling Xinerama disables Direct Rendering (on i810). So you probably want to disable Xinerama for Gem, too. Ciao -- Frank Barknecht _ __footils.org_ __goto10.org__ ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pictures from a digital camera
hi [EMAIL PROTECTED] wrote: That's the idea. Now, I don't know if there's a way to control a digital camera, or a videocamera (maybe it's easier, with the firewire protocol) to make it take a picture which can be then stored in a GEM object. All I've got is a USB digital camera (for photo) and a DVcamera (so with a firewire link). I'm not interested in having a huge resolution, 640x480 is the maximum (because I haven't got a very fast computer and I prefer to have lot of photographs (I hope there will be a lot of spectator !)). Is it possible to control theses devices with pd, or to create an external program (in a different language) which communicates with pd. Is there documentation about this ? as for the digital (photo) camera: to get the pictures into pd, you usually have to mount the device once it is plugged into your pc, then you move the images to harddisk (which is much faster) and unmount the device. while you are moving the images to your harddisk, you would do the rescaling. since this is a rather complicated task, you would usually wrap this into a script which has better access to the system than pd. i would suggest a shell (bash) script (probably because i am better at writing bash scripts than writing python code) i guess a lot of people would use [shell] to control the bash script. however i tend to rather use a simple daemon, which runs independently of pd and checks for the camera and executes the script on demand. when the copying is done, i would send the names of the new files to pd via pdsend. i prefer to not use [shell], because a) i usually don't have it installed since it is an external, and b) because a separate daemon would interfere less with pd's realtime thread. but that is just my approach to such things. fmga.sdr. IOhannes ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pictures from a digital camera
hi. [EMAIL PROTECTED] wrote: Hello ! Another question : I'm now working with the pure:dyne (I think you know it). I'd like to display the Gem window in fullscreen on an external monitor/videoprojector. I manage to get an « extended desktop » (with Xinerama) but not to display the gemwin on the external monitor : with [fullscreen 1( it is always displayed on my laptop, and with [fullscreen 0( the video of the Gem window is no more rendered when i pass it on the external screen. I tried lots of settings in my xorg.conf, but it never worked more than once (if it works one time, it doesn't anymore when i restart X). I think Gem refers to the Screen 0 to choose where it is displayed, but even if i define the external screen as the Screen 0, it doesn't work, the « display screen » or the « rendering buffer » remains on my laptop. My graphic card is a Intel 855 GME, so i'm using i810 as driver. Has anyone got the same problem ? this should be a problem with your gfx card (though i have no experience with your specific model; probably frank can help you here) everything displayed by Gem is done in openGL. a lot of cheaper gfx cards for laptops will only provide openGL acceleration on the first head. trying to render to the 2nd screen might be ignored by the driver. the same problem should appear with any openGL application. e.g. if you run glxgears and move the window to the 2nd head, rendering should vanish too. there is nothing you can do about this, but: a) try to mirror the output of the built-in screen to the external screen. this way you have less possibilities to interact with your patch (since your primary display is occupied by the fullscreen gem window), but at least you might get output. b) buy another gfx card (the problem with laptops is, that this usually means buying another laptop); nvidia chips are known to work well (but are problematic license wise); i think others (frank) have managed to get Gem rendering to a projector with intel chipsets. ah and finally: you should not use fullscreen to make a fullscreen window on the 2nd monitor when not in OS-X land (yet). use [offset 1024 0, dimen 800 600( (or whatever fits your settings) instead. mfga.sdr IOhannes ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pictures from a digital camera
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote: [EMAIL PROTECTED] wrote: Hello ! Another question : I'm now working with the pure:dyne (I think you know it). I'd like to display the Gem window in fullscreen on an external monitor/videoprojector. I manage to get an « extended desktop » (with Xinerama) but not to display the gemwin on the external monitor : with [fullscreen 1( it is always displayed on my laptop, and with [fullscreen 0( the video of the Gem window is no more rendered when i pass it on the external screen. I tried lots of settings in my xorg.conf, but it never worked more than once (if it works one time, it doesn't anymore when i restart X). I think Gem refers to the Screen 0 to choose where it is displayed, but even if i define the external screen as the Screen 0, it doesn't work, the « display screen » or the « rendering buffer » remains on my laptop. My graphic card is a Intel 855 GME, so i'm using i810 as driver. Has anyone got the same problem ? this should be a problem with your gfx card (though i have no experience with your specific model; probably frank can help you here) ... there is nothing you can do about this, but: a) try to mirror the output of the built-in screen to the external screen. this way you have less possibilities to interact with your patch (since your primary display is occupied by the fullscreen gem window), but at least you might get output. Well, how to set up the PIPEs on Intel chips still is a mystery to me as well, so I'm avoiding it. I also don't use Xinerama, but instead just rely on your solution a) which is the default setup anyways for xorg AFAIK. My laptop has a special key which cyccle between disabled/enabled builtin screen/VGA output like (builtin on, vga off), (b off, vga on) and (b on, vga on). Normally I then get the same image on both screens and all is well (unless a Ben-Q beamer is connected to VGA, as these seem to dislike my laptop.) Ciao -- Frank Barknecht _ __footils.org_ __goto10.org__ ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pictures from a digital camera
Selon Frank Barknecht [EMAIL PROTECTED]: Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote: [EMAIL PROTECTED] wrote: Hello ! Another question : I'm now working with the pure:dyne (I think you know it). I'd like to display the Gem window in fullscreen on an external monitor/videoprojector. I manage to get an « extended desktop » (with Xinerama) but not to display the gemwin on the external monitor : with [fullscreen 1( it is always displayed on my laptop, and with [fullscreen 0( the video of the Gem window is no more rendered when i pass it on the external screen. I tried lots of settings in my xorg.conf, but it never worked more than once (if it works one time, it doesn't anymore when i restart X). I think Gem refers to the Screen 0 to choose where it is displayed, but even if i define the external screen as the Screen 0, it doesn't work, the « display screen » or the « rendering buffer » remains on my laptop. My graphic card is a Intel 855 GME, so i'm using i810 as driver. Has anyone got the same problem ? this should be a problem with your gfx card (though i have no experience with your specific model; probably frank can help you here) ... there is nothing you can do about this, but: a) try to mirror the output of the built-in screen to the external screen. this way you have less possibilities to interact with your patch (since your primary display is occupied by the fullscreen gem window), but at least you might get output. Well, how to set up the PIPEs on Intel chips still is a mystery to me as well, so I'm avoiding it. I also don't use Xinerama, but instead just rely on your solution a) which is the default setup anyways for xorg AFAIK. My laptop has a special key which cyccle between disabled/enabled builtin screen/VGA output like (builtin on, vga off), (b off, vga on) and (b on, vga on). Normally I then get the same image on both screens and all is well (unless a Ben-Q beamer is connected to VGA, as these seem to dislike my laptop.) Ciao -- Frank Barknecht _ __footils.org_ __goto10.org__ Thanks IOhannes and Frank ! So, if i understand (as my french-english is quite bad), there's no solution to get the gemwin on the external screen and the patch on the laptop screen, with that type of card. I had managed to display clone and extended screen. But under windows 2K (glups !) i can get an extended desktop and the video is rendered (for example, with VLC player) on the external screen. Maybe this because this is not OpenGL. In this case, couldn't it exist a trick to render it as non-3D (wich doesn't interest me, i'm doing 2D with Gem, because i know it better) or something like passing it from Gem to pdp ? If I remember well the workshop i did, there's something like gem_to_pdp... Or should I use pdp in case of Gem ? About the Intel Graphics, I heard that Intel had just made their drivers more open, dont't they ? Do you think, there will be more support for these cards later with linux ? However, now, I'll try with my girlfriend laptop ; i hope her graphic card is different ! Thanks once more nota : excuse me, i send this mail to your personnal adress instead of sending it to the pd-list ___ PD-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
