Re: [osg-users] vertex arrays in a custom drawable
Hi, ok no answers for a while so I guess i need to explain my problem a bit more. The task is to render a selected set of lines out of a bigger dataset (http://sites.google.com/site/schurade/pic14.png). The test data I'm usually working with is about 70k lines with approx. 5M points but can get bigger easily. The selection is interactive so the rendering needs to be fast so it doesn't get too sluggish. My previous implementation used VBO's or vertex arrays and worked really good even on the slow machine of my boss ( dual core, gforce8, 2 gig ram), so this is what he expects now from the new app which uses OSG. The data (vertex array and at least one color array) is stored in stl::vectorfloat which allos pointer access. I'd prefer to render directly from these arrays and not have to copy it into any osg structures for time and memory consumption reasons. My approach was the above mentioned draw implementation but I can't get it to work. Thank you! Cheers, Otto -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25606#25606 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] iv plugin with coin4 from svn
Hi Michele,
Could you provide a .iv file that reproduces this problem? This will
help others recreate the problem and be able to dig down to what is
causing the issue.
Thanks,
Robert.
On Fri, Mar 12, 2010 at 7:39 PM, Michele Fiorentino
fiorent...@poliba.it wrote:
Hi,
i cannot open any iv or vrml on MS VC 2008 and OSG 2 days ago svn- coin from
svn (= mercurial) i got a breakpoint triggered
in
Code:
SoCallbackAction::getNumTextureCoordinates(void) const
{
return SoMultiTextureCoordinateElement::getInstance(this-state)-getNum(0);
}
call stack :
Code:
msvcr90d.dll!_NMSG_WRITE(int rterrnum=10) Line 198 C
msvcr90d.dll!abort() Line 59 + 0x7 bytes C
msvcr90d.dll!_wassert(const wchar_t * expr=0x066a6b48, const wchar_t *
filename=0x066a6ad8, unsigned int lineno=435) Line 163 C
coin4d.dll!SoMultiTextureCoordinateElement::getNum(const int unit=0)
Line 435 + 0x27 bytes C++
coin4d.dll!SoCallbackAction::getNumTextureCoordinates() Line 850
C++
osgdb_ivd.dll!ConvertFromInventor::postShape(void * data=0x0013ade8,
SoCallbackAction * action=0x0013ac48, const SoNode * node=0x034bb648) Line
913 + 0xb bytes C++
coin4d.dll!SoCallbackData::doNodeCallbacks(SoCallbackAction *
action=0x0013ac48, const SoNode * node=0x034bb648) Line 229 + 0x14 bytes C++
coin4d.dll!SoCallbackAction::invokePostCallbacks(const SoNode * const
node=0x034bb648) Line 1117 + 0x28 bytes C++
coin4d.dll!SoNode::callbackS(SoAction * action=0x0013ac48, SoNode *
node=0x034bb648) Line 990 C++
coin4d.dll!SoAction::traverse(SoNode * const node=0x034bb648) Line
963 + 0xd bytes C++
coin4d.dll!SoChildList::traverse(SoAction * const action=0x0013ac48,
const int first=0, const int last=1) Line 337 C++
coin4d.dll!SoChildList::traverse(SoAction * const action=0x0013ac48)
Line 407 C++
auto variables
Code:
+ rterrs 0x10311048 rterrs {rterrno=2 rterrtxt=0x10201cc8
R6002
- floating point support not loaded
} rterrmsgs [23]
+ rterrs[tblindx] {rterrno=10 rterrtxt=0x10201bd8
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
} rterrmsgs
+ rterrs[tblindx].rterrtxt 0x10201bd8
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
char *
tblindx 3 int
any solution?
Thank you!
Cheers,
Michele
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Re: [osg-users] Precipitation and VBO
Hi Guy, It sounds like your setup is falling back to software rendering for some reason. The 7950 should be able to handle it just fine so there must be something in the driver or something in your setup. I'm afraid I can't really provide must guidance on what it might be, try other drivers, different pixel formats etc. Robert. On Sat, Mar 13, 2010 at 1:38 AM, Guy Volckaert guy.volcka...@meggitt.com wrote: Hi, I am experiencing VERY bad performance (i.e 1 FPS) when I enable precipitation on my Dell laptop (XPS 1710) that uses a GeForce 7950 graphic card (dell driver version 179.xx). But here's the kicker... the performance is fine when running on any other desktop systems that has a more recent graphic card (for example a 8800 GTX). I kinda understand that it would run faster, but never expecte a drop to 1 FPS on a 7950, especially when there is ABSOLUTELY nothing in the scene. I've reduced my application to the bare minimum to isolate the problem. All I have in my scene graph is a pre- post- camera used to render my scene to a texture (using the render-target-implememtation functions of the osg::camera), and an instance of precipitation effect. I tried using different render-target-implementation technique (like FRAME_BUFFER) but that did not change anything. If I bypass the render-target-implementation (i.e I bypass the osg::camera::attach() method), keep the pre-camera, and remove the post-camera, then everything work fine (running at 60fps). Can someone shed some light on why the the render-target-implementation would affect osg::PrecipitationEffect (or vice-versa). Note: The problem is not the precipitation effect because I compared my implementation with the osg precipitation example and they are the same. When I run the example the frame rate is 60fps (which is the same as my app when I bypass the rendet to target). Cheers, Guy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25603#25603 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] vertex arrays in a custom drawable
Hi Otto,
The OSG uses lazy state updating to prevent unnecessary calls being
made to OpenGL, however, it does mean that if you change OpenGL state
yourself without telling the OSG about it then it can get out of sync
and cause problems. I would recommend using the osg::State methods for
setting the vertex array pointers and enabling them, this way you can
keep everything in sync and avoid making unnecessary OpenGL calls.
Robert.
On Tue, Mar 9, 2010 at 3:07 PM, Otto Cologne schur...@gmx.de wrote:
Hi,
i'm trying to use vertex arrays in my own drawable. For some reason it
crashes in the glDrawArrays call. The draw implementation is some code that
works in another program of mine which uses pure opengl.
Code:
glEnableClientState( GL_VERTEX_ARRAY );
glEnableClientState( GL_COLOR_ARRAY );
glVertexPointer( 3, GL_FLOAT, 0, (*verts)[0] );
glColorPointer( 3, GL_FLOAT, 0, (*colors)[0] );
for ( size_t i = 0; i active-size(); ++i )
{
if ( (*active)[i] )
{
glDrawArrays( GL_LINE_STRIP, (*startIndexes)[i] * 3,
(*pointsPerLine)[i] );
}
}
glDisableClientState( GL_VERTEX_ARRAY );
glDisableClientState( GL_COLOR_ARRAY );
In the constructor of the drawable there is a setSupportsDisplayList( false );
For the opengl part this looks correct, the only thing i could think of now
is that it's not ok to do stuff like glEnableClientState directly but have to
use some osg state object. Any hints on how to do it correctly will be
greatly appreciated.
Thank you!
Cheers,
Otto
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Re: [osg-users] [osgPlugins] iv plugin with coin4 from svn
Hi,
this is the simple model i could find.. and gives assert!
the same eror from vrml and more complex files...
cube.iv
Code:
#Inventor V2.1 ascii
DEF _CUBE_SEP Separator {
Cube {
width 0.1
height 0.1
depth 0.1
}
}
Code:
C:\dev\external_libs\OSG-dataosgviewerglutd cube.iv
osgDB::ReaderWriterIV::readNode() Reading file cube.iv
Assertion failed: unit PRIVATE(this)-unitdata.getLength(), file ..\..\src\ele
ments\SoMultiTextureCoordinateElement.cpp, line 435
Thank you!
Cheers,
Michele
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Re: [osg-users] Precipitation and VBO
I will modify the precipitation example to include a render-target implementation and see if I can reproduce the problem. If I am successful, I will post the example on the forum so that someone can review the implementation. Like you said Rob, I may have a bad setup and I just don't know it. Guy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25612#25612 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] vertex arrays in a custom drawable
Well that's what I suspected. My problem is more the how than the if. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25613#25613 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Problem with readNodeFiles
Hi Robert and all -- This command works fine: osgviewer cow.osg dumptruck.osg But if I run this command: osgviewer cow.osg dumptruck.osg.(-5,-5,-5).trans I get only the cow. From cranking up the Notify level, it appears that somewhere in osgDB (presumably down in readNodeFiles), the code is trying to find a file named dumptruck.osg.(-5,-5,-5).trans and of course it fails to find such a file. Working on 2.8.3 today, else I'd dig in. But it shouldn't be hard to identify the source of the issue and fix it, I'd think. -- Paul Martz Skew Matrix Software LLC _http://www.skew-matrix.com_ http://www.skew-matrix.com/ +1 303 859 9466 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Problem with readNodeFiles
Paul Martz wrote: Hi Robert and all -- This command works fine: osgviewer cow.osg dumptruck.osg But if I run this command: osgviewer cow.osg dumptruck.osg.(-5,-5,-5).trans I get only the cow. Additional info: Swapping the order works fine: osgviewer dumptruck.osg.(-5,-5,-5).trans cow.osg And using something other than a .osg file as the first file also works fine: osgviewer foo.flt dumptruck.osg.(-5,-5,-5).trans Finally, there are no issues on 2.8.2, so this is new. I also couldn't resist taking a look at readNodeFiles, but I didn't see anything obvious there, so this appears to be some kind of side effect, possibly related to the new native file support. -Paul ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Rendering 2 video stream
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Adrian, You can stream directly from the source, but in order to avoid the same machine support the broadcasting and generating the stream, i used two machine: o the stream generator o a server on the net that can send 100Mb/sec If you have only a few client or if your stream needs to be view in localnetwork then maybe you can avoid the broadcast server. To use the flux on a webpage i used http://www.flumotion.net/ . You can have a look on the web, then the html needed to use the flux is video width=600 height=400 autoplay=yes src=http://stream.pok.me/stream.ogg view-source:http://stream.pok.me/stream.ogg tabindex=0 /video Off course you will maybe need some fallback depending on your target. Cheers, Cedric On 03/11/10 13:09, Adrian Egli OpenSceneGraph (3D) wrote: Hi Cedric, Sorry to interrupt you again. Well once i have the video rendered , i launch gstreamer with gst-launch-0.10 and with the parameters you send me once. Now the gstream takes the input from location and streams it as a ogg video over network. Do i need a webserver instance to stream to or how does it work? own can i integrate it into a firefox html webpage. say i will stream it from localhost and watch on localhost with firefox -console my_Test_page.hmtl with the video display. and i have the osgviewer application running and i can navigate with my mouse (as common) and watch in real time the video beside with a copy of the osgviewer frame buffer output/ /adrian Hi, I render a video game based on osg into a video stream, you can have an idea here http://plopbyte.net/?page_id=6/ you need a firefox plugin to watch it. The basic idea works on linux with gstreamer. Dont tested on windows but because there is gstreamer, maybe it works too. In the game code i added a thread that write image at a given rate. This file is written into a file descriptor created with mkfifo. Then i use a command line when the game is running: gst-launch-0.10 filesrc location=myfifo ! videoparse width=800 height=600 format=15 framerate=20/1 ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv, width=800, height=600 ! videoflip method=5 ! theoraenc quality=40 ! oggmux ! gdppay ! tcpserversink port=12000 21 log The advantage using gstreamer is that you can use the codec you want to encode the video and stream it over the web. The code is inside this project http://hg.plopbyte.net/pokme/ Cheers, Cedric 2010/2/6 Cedric Pinson cedric.pin...@plopbyte.net mailto:cedric.pin...@plopbyte.net Hi Adrian, I am sorry i dont have a small proof of concept only the code integrated to a project (pokme). I guess it would need one or two day of work to setup a small example. Cheers, Cedric -- Provide OpenGL services around OpenSceneGraph and more +33 659 598 614 Cedric Pinson mailto:cedric.pin...@plopbyte.net mailto:cedric.pin...@plopbyte.net http://www.plopbyte.net On Sat, 2010-02-06 at 11:53 +0100, Adrian Egli OpenSceneGraph (3D) wrote: Hi all, thanks for the short answer. i am looking for a small test.cpp (osgviewer - render2video - stream) has someone still implemented such a demo? /adrian 2010/2/2 Cedric Pinson cedric.pin...@plopbyte.net mailto:cedric.pin...@plopbyte.net Hi, I render a video game based on osg into a video stream, you can have an idea here http://plopbyte.net/?page_id=6/ you need a firefox plugin to watch it. The basic idea works on linux with gstreamer. Dont tested on windows but because there is gstreamer, maybe it works too. In the game code i added a thread that write image at a given rate. This file is written into a file descriptor created with mkfifo. Then i use a command line when the game is running: gst-launch-0.10 filesrc location=myfifo ! videoparse width=800 height=600 format=15 framerate=20/1 ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv, width=800, height=600 ! videoflip method=5 ! theoraenc quality=40 ! oggmux ! gdppay ! tcpserversink port=12000 21 log The advantage using gstreamer is that you can use the codec you want to encode the video and stream it over the web. The code is inside this project http://hg.plopbyte.net/pokme/ Cheers, Cedric -- Provide OpenGL services around OpenSceneGraph and more +33 659 598 614 Cedric Pinson mailto:cedric.pin...@plopbyte.net mailto:cedric.pin...@plopbyte.net http://www.plopbyte.net On Mon, 2010-02-01 at 17:39 -0500, r...@sensorstar.com mailto:r...@sensorstar.com wrote: Adrian - A way that I've used for that type of functionality is through a Camera::DrawCallback subclass. You can get the rendered scene through an (osg::Image) readPixels() call and pass it out through whatever stream you like frame by frame. It isn't extremely fast since it depends on the readPixels() call, but on a Quadro or the like it has always been 'fast enough' for my purposes. For the video stream output, I can't offer too much advice because I
Re: [osg-users] Problem with readNodeFiles
Hi Paul, Thanks for the report. I can reproduce it at my end, but as yet don't know what it might be. I will investigate on Monday. Robert. On Sat, Mar 13, 2010 at 4:49 PM, Paul Martz pma...@skew-matrix.com wrote: Hi Robert and all -- This command works fine: osgviewer cow.osg dumptruck.osg But if I run this command: osgviewer cow.osg dumptruck.osg.(-5,-5,-5).trans I get only the cow. From cranking up the Notify level, it appears that somewhere in osgDB (presumably down in readNodeFiles), the code is trying to find a file named dumptruck.osg.(-5,-5,-5).trans and of course it fails to find such a file. Working on 2.8.3 today, else I'd dig in. But it shouldn't be hard to identify the source of the issue and fix it, I'd think. -- Paul Martz Skew Matrix Software LLC _http://www.skew-matrix.com_ http://www.skew-matrix.com/ +1 303 859 9466 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OSG and VRJuggler example
Hi, I am Rohit . I am working on a cluster with vrJuggler . I want to use OpeneSceneGraph on the cluster . I am using a master and three slaves , working on VC++ 2008 and Windows XP 64bit. Can you provide some basic steps to impliment OSG along with vrJuggler on the cluster? ... Thank you! Cheers, Rohit -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25618#25618 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Collision Detection
I have been looking for an example of using this utility PolytopeIntersector to intersect say, a bounding box, of a more complex object, with another set of objects in the scene. Are there any example snippets out there how to go about this? An example might be wanting to know if a moving car (surrounded by bounding box) hit a cone or channelizer drum (e.g., cylinder). thanks all, Ted On Fri, Mar 5, 2010 at 11:10 AM, Jason Daly jd...@ist.ucf.edu wrote: John Galt wrote: Hi, I have a noob question. Say I have a pyramid defined by points 0,1,2,3,4. And say I have another cube determined by points 5,6,7,8,9,10,11,12. How do I detect whether the entire cube falls inside the pyramid or not? What if the cube is very small and can be defined by a single point 13. Can I find out if the point 13 falls within the pyramid with a simple osg command? I think you should be able to do this with a PolytopeIntersector. Just add each face of the pyramid as a plane in the Polytope, and intersect it against the cube. The nice thing about the PolytopeIntersector is that it will work with points and lines as well as faces, so it should work for your second case. --J ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] ScreenShot File name
Hi Jean-Sébastien, Tahnk you very much for your response it was very helpfull, I implemented your advice and it seems to work perfect. Code: osgViewer::ScreenCaptureHandler* _scnsvr; _scnsvr = new osgViewer::ScreenCaptureHandler(new osgViewer::ScreenCaptureHandler::WriteToFile(test,png,osgViewer::ScreenCaptureHandler::WriteToFile::SavePolicy::OVERWRITE)); It works nice in standard OSG application, my issue is the following: I'm using OSG inside of ActiveX control (based on OSGActiveX example) embedded into HTML page. First time when I'm loading it and each time I'm taking snapshot, I'm getting test_0.png and each snapshot overwrites this file. When I'm pressing F5 or reloading page using IE address bar I'm starting to save snapshots as test_1.png and each snaphot overwrite this file. This behavior continues each time I'm reloading page. the counter is being incremented by one to test_2, test_3 etc the only solution for this problem is to close IE and to wait till ActiveX unloads from Memeory. after it the counts start form zero. I have no clue how to resolve it and this is major blocking issue for my project. Could you please help? Thank you! Cheers, Danny -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25620#25620 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Help: how to rotate view camera 90 degrees in relationship to terrain
Is your viewing camera also using the local coordinate system (i.e geocentric)? Guy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25621#25621 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] LOD support
If I recall correctly, even the osgParticle supports LODs, but I think they are called details instead (or something rather). However, osg does not implicitely use it - you need to manage the details yourself. Guy -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25622#25622 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Problem with readNodeFiles
Robert Osfield wrote:
Hi Paul,
Thanks for the report. I can reproduce it at my end, but as yet don't
know what it might be. I will investigate on Monday.
Thanks for looking into this. I was curious, so I thought I'd dig a
little on a Saturday night over a beer.
It appears to be a problem in src/osgPlugins/osg/ReaderWriterOSG2.cpp.
The prepareReading method checks for the wrong extension but fails to
immediately return once that has been identified as the case...
Options* prepareReading( ReadResult result, std::string fileName,
const Options* options ) const
{
std::string ext = osgDB::getLowerCaseFileExtension( fileName );
if ( !acceptsExtension(ext) ) result =
ReadResult::FILE_NOT_HANDLED; // Should return here?
fileName = osgDB::findDataFile( fileName, options );
if ( fileName.empty() ) result = ReadResult::FILE_NOT_FOUND;
// Should return here too, right?
osg::ref_ptrOptions local_opt = options ?
static_castOptions*(options-clone(osg::CopyOp::SHALLOW_COPY)) : new
Options;
local_opt-getDatabasePathList().push_front(osgDB::getFilePath(fileName));
if ( ext==osgt ) local_opt-setOptionString(
local_opt-getOptionString() + Ascii );
etc
But I haven't dug deep enough to explain why the issue goes away when
you swap the order of the two command line arguments. Perhaps due to the
chain of responsibility pattern.
-Paul
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[osg-users] [osgPlugins] WRL Plugin needed
Hi, I have a wrl file I would like to use as a 3D model. I found lots of sites telling me that there is a plugin enabling me to read those, but I couldn't find the .dll file that is actually the plugin. Can anyone please send me the link to download the plugin? Thank you! Cheers, John -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25624#25624 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] WRL Plugin needed
You Have to get the source and build it See http://www.openscenegraph.org/projects/osg/wiki/Community/Plugins Also search the email archive for more details as this has been discussed many times in the past __ Gordon Tomlinson gor...@gordontomlinson.com www.photographybyGordon.com www.vis-sim.com www.gordontomlinson.com IM: gordon3db...@3dscenegraph.com __ -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of John Galt Sent: Saturday, March 13, 2010 11:13 PM To: osg-users@lists.openscenegraph.org Subject: [osg-users] [osgPlugins] WRL Plugin needed Hi, I have a wrl file I would like to use as a 3D model. I found lots of sites telling me that there is a plugin enabling me to read those, but I couldn't find the .dll file that is actually the plugin. Can anyone please send me the link to download the plugin? Thank you! Cheers, John -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25624#25624 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
