[osg-users] kd tree ray tracing performance
Hi, is there any example that compares ray tracing performance in ms between kdtree and normal implementation with osg? i remember some time i found such an example and modified it, but couldnt find that code now. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50460#50460 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [build] pdb install
Hi All, is there a way to install pdb files in the same directory of the dlls? if not, could you please help me in finding the right cmake file to modify? Regards, Gianni -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50461#50461 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OrbitManipulator::handleMouseWheel()
Hi All, could you please explain me the reason why handleMouseWheel() of OrbitManipulator class is never called? I derived from NodeTrackerManipulator and set a breakpoint in OrbitManipulator::handleMouseWheel() implementation but I never get inside that method. Even if I use an osg::TrackballManipulator I cannot see the wheel event handled. Moreover, in StandardManipulator::handle(), case GUIEventAdapter::SCROLL: never happens. So, how can I enable the mouse wheel event? Regards, Gianni -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50462#50462 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Help:why does renderbin affect the display of textures ?
Is nobody interested in this question?:-( Hello, I have two drawable nodes A and B under the same main group node. I mapped two different textures on the drawables respectively. Those two drawables do not have any overlappings in terms of pixels on the screen. Drawable A is described using open scene graph library while drawable B is described using openGL terms. Depth test is disabled by Drawable A and enabled by drawable B. Texture display on A uses a shader while B does not. When the renderbin of drawable A is set to be -1 and that of drawable B is 1, the two textures cannot show at the same time. That is to say, when I toggle on both drawable A and drawable B and make them both seen on the screen, the texture on drawable B doesn't show, but the color of B is correct. Under such circumstance, when I manipulate the view in a way such that drawable A is out of sight, then the texture on drawable B will appear. If I reverse the renderbins of those two drawables, then the textures can show at the same time. I just cannot figure out why this happens. If it is due to depth test, why should such conflicts happen, since they have no overlapped pixels on the screen? Even it is due to depth test, why is the color correct? Would someone please be so kind enough as to explain that to me? Thanks millions in advance! Best regards Shuiying ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Help:why does renderbin affect the display of textures ?
Hi Shuiying, I guess that there may be something wrong in the draw implementation of drawable B. Although OpenGL calls can be executable in custom drawables, it is still suggested that you apply all kinds of rendering states to the drawable using StateAttribute derivatives. But without looking at some detailed code, I can hardly find out the actual reason inside. Wang Rui 2012/10/8 wang shuiying shuiying.w...@fu-berlin.de: Is nobody interested in this question?:-( Hello, I have two drawable nodes A and B under the same main group node. I mapped two different textures on the drawables respectively. Those two drawables do not have any overlappings in terms of pixels on the screen. Drawable A is described using open scene graph library while drawable B is described using openGL terms. Depth test is disabled by Drawable A and enabled by drawable B. Texture display on A uses a shader while B does not. When the renderbin of drawable A is set to be -1 and that of drawable B is 1, the two textures cannot show at the same time. That is to say, when I toggle on both drawable A and drawable B and make them both seen on the screen, the texture on drawable B doesn't show, but the color of B is correct. Under such circumstance, when I manipulate the view in a way such that drawable A is out of sight, then the texture on drawable B will appear. If I reverse the renderbins of those two drawables, then the textures can show at the same time. I just cannot figure out why this happens. If it is due to depth test, why should such conflicts happen, since they have no overlapped pixels on the screen? Even it is due to depth test, why is the color correct? Would someone please be so kind enough as to explain that to me? Thanks millions in advance! Best regards Shuiying ___ 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
[osg-users] Help:How many frames at most can be achieved within OSG framework?
Hello, I am wondering how many frames at most can be achieved when a scene is rendered within OSG framework? Is it restricted by GPU performance or the operating system or OSG framework? Thank you very much in advance! Best regards Shuiying ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Help:why does renderbin affect the display of textures ?
Hi Seems like you are messing with opengl state, and osg dont know about it. You should either: a) when you draw something with pure gl - after you finished, return all state you modified to values being before you started drawing b) use osg::State interface members to let osg know what state you are changed, or use osg wrappers in osg::State to make this state changes. c) call osg::State's dirty*() methods (like dirtyAllModes() and dirtyAllAttributes()) for state you've changed, after you finished with pure gl, but i dont recommend using this. Cheers. 08.10.2012, 12:14, wang shuiying shuiying.w...@fu-berlin.de: Is nobody interested in this question?:-( Hello, I have two drawable nodes A and B under the same main group node. I mapped two different textures on the drawables respectively. Those two drawables do not have any overlappings in terms of pixels on the screen. Drawable A is described using open scene graph library while drawable B is described using openGL terms. Depth test is disabled by Drawable A and enabled by drawable B. Texture display on A uses a shader while B does not. When the renderbin of drawable A is set to be -1 and that of drawable B is 1, the two textures cannot show at the same time. That is to say, when I toggle on both drawable A and drawable B and make them both seen on the screen, the texture on drawable B doesn't show, but the color of B is correct. Under such circumstance, when I manipulate the view in a way such that drawable A is out of sight, then the texture on drawable B will appear. If I reverse the renderbins of those two drawables, then the textures can show at the same time. I just cannot figure out why this happens. If it is due to depth test, why should such conflicts happen, since they have no overlapped pixels on the screen? Even it is due to depth test, why is the color correct? Would someone please be so kind enough as to explain that to me? Thanks millions in advance! Best regards Shuiying ___ 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] how to get number of vertices and faces
Hi John, Ther a number of different ways to get stats on scene graphs: The onscreen stats handling provides a range of options that may be sufficient - run osgviewer on your model and press 's' a couple of times to see the various different stats availble. One can also convert model to .osg or .osgt files and the browse through them in an editor to see the scene graph structure and the sizes of the various arrays. One can also use the osgUtil::Statsitics helper class that can be used to tot up the various vertex and primitive dat stats from drawables in your scene graph, you can use this in conjunction with custom NodeVisitor to accumulate the stats for you whole scene graph. Do a search through the OSG code base to see how the StatsHandler/Statitics class are used. Robert. On 7 October 2012 15:05, John Moore kahar...@gmail.com wrote: Hi guys, I have a scene graph with only a node containing an OBJ file. Do you know hot can I get the number of vertices and faces of the OBJ model? Actually I am using osg::Stats osg::Stats* stats = _viewer-getCamera()-getStats(); I get the attribute map... const osg::Stats::AttributeMap attributes = stats-getAttributeMap(i); I iterate and then I am able to get the -Visible number of GL_TRIANGLE_STRIP -Visible vertex count that seems to be the values I need... However the real number of faces of the OBJ is different from GL_TRIANGLE_STRIP, and the real number of vertices of the OBJ is different from Vertex count. I know because I checked using 3DS max. How can I get the correct values? Thank you! Cheers, John -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50457#50457 ___ 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] kd tree ray tracing performance
H Tolga, On 8 October 2012 08:09, Tolga Yilmaz osgfo...@tevs.eu wrote: is there any example that compares ray tracing performance in ms between kdtree and normal implementation with osg? i remember some time i found such an example and modified it, but couldnt find that code now. There isn't any example that address this right now. You could modified the osginterstion example to add a command line option for enabling the build of kdtree's and then use it as a benchmarking tool. When developing the KdTree support I did plenty of benchmarking but I never truned these tests into a OSG example and don't have the code anymore unfortunately - I do lots of prototype/testing so don't tend to keep all the tests around. From my experience KdTree's help most when the scene graph is composed of large osg::Geometry meshes - here it can be 10 to 1000's of times faster, if the scene graph is already very fine grained with many small osg::Geometry meshes then the difference is much smaller. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [ANN] OSG exporter available for Grome editor
Hello dear OSG-community, I am glad to announce our official support for OpenSceneGraph integration with our editing software, Grome. The integration consists in an export plugin from Grome editor to OSG ive and osg formats, a sample map and documentation: http://www.quadsoftware.com/index.php?m=sectionsec=productsubsec=editortarget=Editor/ForEngines/editor_osg; The exporter is provided free of charge (including full source code). Grome is a outdoor level editing software that supports procedural generation of terrain, placement of objects, water surfaces, road networks. The editor is used by professional and indie game developers and by simulation industry corporations. More information about Grome here: http://www.quadsoftware.com/index.php?m=sectionsec=productsubsec=editor Please don't hesitate to contact us for any information. The integration forum can be found here: http://www.quadsoftware.com/forum/viewforum.php?f=42 Best Regards, Adrian Licu Quad Software CTO -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50469#50469 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] kd tree ray tracing performance
Hi, Here are some bench I have made few years ago (2008). Tests description: - scene 1: 200x200 grid (8 triangles, 40401 vertices), only one geometry - scene 2: small part of a real terrain (16x16 km), 1600+ geometries, quad tree shaped scene graph The benchmark application display the scene and 30 mobile objects (on a trajectory) clamped on the ground. Clamping time: Scene w/o Kd-Tree w/ Kd-Tree Min (ms) Max (ms) Avg (ms) Min (ms) Max (ms) Avg (ms) 1 2,890 3,280 3,105 0,021 0,029 0,023 2 0,270 1,185 0,625 0,079 0,410 0,242 Here is the same tests with the code of LineSegmentIntersector doing the segment/triangle intersection test commented out (== scene graph traversal time): Scene scene graph traversal time Min (ms) Max (ms) Avg (ms) 1 0,003 0,005 0,003 2 0,057 0,385 0,227 So the traversal of the leaves are: w/o Kd-Tree w/ Kd-Tree 1 3,105 -- 0,003 = 3,102 0,023 -- 0,003 = 0,020 2 0,625 -- 0,227 = 0,398 0,242 -- 0,227 = 0,015 Here are the gain of using Kd-Trees: Global Only leaves scene 1 -99,26% -99,36% scene 2 -61,28% -96,23% And the memory cost: Number of Kd-trees Total Kd-Tree size scene 1 62 4,65 MB scene 2 1 38,06 MB On 08/10/2012 11:26, Robert Osfield wrote: H Tolga, On 8 October 2012 08:09, Tolga Yilmaz osgfo...@tevs.eu wrote: is there any example that compares ray tracing performance in ms between kdtree and normal implementation with osg? i remember some time i found such an example and modified it, but couldnt find that code now. There isn't any example that address this right now. You could modified the osginterstion example to add a command line option for enabling the build of kdtree's and then use it as a benchmarking tool. When developing the KdTree support I did plenty of benchmarking but I never truned these tests into a OSG example and don't have the code anymore unfortunately - I do lots of prototype/testing so don't tend to keep all the tests around. From my experience KdTree's help most when the scene graph is composed of large osg::Geometry meshes - here it can be 10 to 1000's of times faster, if the scene graph is already very fine grained with many small osg::Geometry meshes then the difference is much smaller. Robert. ___ 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] how to get number of vertices and faces
Dear Robert, Actually I can't use the S key because my application is running on iOS. Is there any way to compute these value using a node visitor? actually for knowing the vertices I tried using this line of code inside my nodevisitor totalNumOfVertices += geo-getVertexArray()-getNumElements(); however the result is a higher than expected, so I am not sure it's the true value. Am I doing it right? Thank you. Bye, John -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50474#50474 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Difference between osgFX and osgPPU
Hello. Is there any difference between these 2 or are they different implementations for the same purpose ? For someone who wants to support multi passes (using shaders) on model nodes which is better ? thnx. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] glslDevil
On Thu, Oct 4, 2012 at 9:33 AM, Chris Hanson xe...@alphapixel.com wrote: So, do we have any Germans who could give me a hand liasing with Stuttgart? Just the time difference makes it awkward for me in the western US. Well, since nobody has volunteered, I will try to contact them tomorrow and see what happens. Still would be nice to hear from someone willing to help. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Digital Imaging • GIS • GPS • Telemetry • Cryptography • Digital Audio • LIDAR • Kinect • Embedded • Mobile • iPhone/iPad/iOS • Android ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [vpb] osgdem --image-ext option working
Excellent, thanks for the clarification Robert Regards, Paul -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50489#50489 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] glslDevil
Hello Chris, I've been working with glslDevil a while ago and found it really helpful up to the point where it didn't support anything beyond GLSL 1.2. Since I'm not an academic(i.e. I don't study anymore) I didn't volunteer and replied to your request. You can put me on the CC and I'm willing to help with your request, if this is of any value for you. cheers Sebastian On Thu, Oct 4, 2012 at 9:33 AM, Chris Hanson xe...@alphapixel.com mailto:xe...@alphapixel.com wrote: So, do we have any Germans who could give me a hand liasing with Stuttgart? Just the time difference makes it awkward for me in the western US. Well, since nobody has volunteered, I will try to contact them tomorrow and see what happens. Still would be nice to hear from someone willing to help. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training . Consulting . Contracting 3D . Scene Graphs (Open Scene Graph/OSG) . OpenGL 2 . OpenGL 3 . OpenGL 4 . GLSL . OpenGL ES 1 . OpenGL ES 2 . OpenCL Digital Imaging . GIS . GPS . Telemetry . Cryptography . Digital Audio . LIDAR . Kinect . Embedded . Mobile . iPhone/iPad/iOS . Android ___ 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] glslDevil
I've been working with glslDevil a while ago and found it really helpful up to the point where it didn't support anything beyond GLSL 1.2. You got it to work better than I did. ;) Since I'm not an academic(i.e. I don't study anymore) I didn't volunteer and replied to your request. You can put me on the CC and I'm willing to help with your request, if this is of any value for you. Ok. I've contacted Stefan Roettger to see if he would be willing to help contact and resurrect this project. Whether he can or not, your help would certainly be welcome, as well as that of anyone who has experience with glslDevil, or just interest. It would be nice to bring it up to modern functionality, as GLSL can be such a fickle beast. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Digital Imaging • GIS • GPS • Telemetry • Cryptography • Digital Audio • LIDAR • Kinect • Embedded • Mobile • iPhone/iPad/iOS • Android ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Building on Android
The error happens with the default order. I tried changing it, with no success. In case you want to look into this further, you may want to refer to my version that successfully builds with the latest SDK and NDK and with dynamic runtime: https://github.com/Eduardop/osg/tree/osg-android Eduardo On Sun, Oct 7, 2012 at 7:05 AM, Jorge Izquierdo Ciges jori...@gmail.com wrote: It could be possible that the gnustl_static was included in the wrong order, it has happened a few times (depending NDK/Linux version) to me. 2012/10/7 Eduardo Poyart poy...@gmail.com Finally, I was able to build by using the shared runtime (libgnustl_shared). I could not make it work with libgnustl_static. Eduardo On Fri, Oct 5, 2012 at 11:39 AM, Eduardo Poyart poy...@gmail.com wrote: Hello, I'm having a problem building for Android. I can build OSG, but when I try to build the GLES1 example I have these linker errors: /home/eduardo/src/osg/osg-android/obj/local/armeabi-v7a/libosgdb_osg.a(ReaderWri terOSG.o): In function `OSGReaderWriter::setPrecision(osgDB::Output, osgDB::Opt ions const*) const': /home/eduardo/src/osg/OpenSceneGraph/src/osgPlugins/osg/ReaderWriterOSG.cpp:295: undefined reference to `std::basic_istringstreamchar, std::char_traitschar, std::allocatorchar ::basic_istringstream(std::basic_stringchar, std::char_tr aitschar, std::allocatorchar const, std::_Ios_Openmode)' /home/eduardo/src/osg/OpenSceneGraph/src/osgPlugins/osg/ReaderWriterOSG.cpp:313: undefined reference to `std::basic_istringstreamchar, std::char_traitschar, std::allocatorchar ::~basic_istringstream()' /home/eduardo/src/osg/OpenSceneGraph/src/osgPlugins/osg/ReaderWriterOSG.cpp:313: undefined reference to `std::basic_istringstreamchar, std::char_traitschar, std::allocatorchar ::~basic_istringstream()' There are several other errors related to basic_istringstream, basic_stringbuf, type_info and others. It seems like there is a STL incompatibility. I checked, but both osg and the example seem to be being built with the correct STL include path. The linker command is: /usr/local/android-ndk-r8b/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x 86/bin/arm-linux-androideabi-g++ -Wl,-soname,libosgNativeLib.so -shared --sysroo t=/usr/local/android-ndk-r8b/platforms/android-5/arch-arm ./obj/local/armeabi-v7 a/objs/osgNativeLib/osgNativeLib.o ./obj/local/armeabi-v7a/objs/osgNativeLib/Osg MainApp.o ./obj/local/armeabi-v7a/objs/osgNativeLib/OsgAndroidNotifyHandler.o ./ obj/local/armeabi-v7a/libgnustl_static.a -Wl,--fix-cortex-a8 -L /home/eduardo/s rc/osg/osg-android/obj/local/armeabi-v7a -losgdb_tga -losgdb_osg -losgdb_depreca ted_osgviewer -losgdb_deprecated_osgvolume -losgdb_deprecated_osgtext -losgdb_de precated_osgterrain -losgdb_deprecated_osgsim -losgdb_deprecated_osgshadow -losg db_deprecated_osgparticle -losgdb_deprecated_osgfx -losgdb_deprecated_osganimati on -losgdb_deprecated_osg -losgdb_serializers_osgvolume -losgdb_serializers_osgt ext -losgdb_serializers_osgterrain -losgdb_serializers_osgsim -losgdb_serializer s_osgshadow -losgdb_serializers_osgparticle -losgdb_serializers_osgmanipulator - losgdb_serializers_osgfx -losgdb_serializers_osganimation -losgdb_serializers_os g -losgViewer -losgVolume -losgText -losgSim -losgManipulator -losgGA -losgFX -l osgDB -losgUtil -losg -lOpenThreads -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z ,relro -Wl,-z,now -L/usr/local/android-ndk-r8b/platforms/android-5/arch-arm/usr/ lib -llog -lGLESv1_CM -ldl -lz -lc -lm -o obj/local/armeabi-v7a/libosgNativeLib. so I have the latest OSG SVN version and the latest SDK and NDK. I'm following the instructions in both http://www.openscenegraph.org/projects/osg/wiki/Support/PlatformSpecifics/Android and http://www.openscenegraph.com/index.php/documentation/platform-specifics/android/43-building-openscenegraph-for-android-3-0-2. I had to change a few false to NULL in osgNativeLib.cpp to stop gcc from complaining. ___ 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 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Build osgEarth for android?
Hi, I have build OSG for Android(cmake setings for OpenGL ES1.1),and it work on Android no problem. Then I add osgEarth source to OSG,put osgEarthDrivers file in osgPlugins file,build it .I have get the osgEarth's lib,includes libosgEarth.a libosgEarhtAnnotation.a libosgEarthFeatures.a libosgEarthSymbology.a libosgEarthUtil.a and libosgdb_earth.a libosgdb_osgearth_gdal.a etc. After,I link the need lib to the project,run it.The problem comes with the ANR in logcat.I pull /data/anr/traces.txt out,open it, the context's: DALVIK THREADS: main prio=5 tid=1 WAIT |group=main sCount=1 dsCount=0 s=N obj=0x4001d968 self=0xcd28 |sysTid=5740 nice=0 sched=0/0 cgrp=default handle=-1345017816 at java.lang.object.wait(Native Method) -waiting on 0x4008cbe0 (a android.opengl.GLSurfaceView$GLThreadManager) at java.lang.object.wait(object.java:288) at android.opengl.GLSurfaceView$GLThread.onWindowResize(GLSurfaceView.java:1486) at android.opengl.GLSurfaceView.SurfaceChanged(GLSurfaceView.java:495) ... ... ... I think it maybe onCreate() use too time,So I create a new thread in GLSurfaceView.Renderer.But the problem is remain as before. How can I get the osgEarth working,Is anybody can help me or give me same advices? Thank you! Cheers, MuXing -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50165#50165 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Texture don't display on Android With GLES1 ?
Hi, I build OSG3.0.0 on android with OpenGLES1. I red that Environmental mapping is not working on Android. So I convert model to earth.ive with embedded textures.(the convert tool is VPB,on windows the earth.ive texture display no problem) On android ,these are the things what I did 1) I added -losgdb_jpeg -ljpeg -lpng -ltiff under LOCAL_LDFLAGS in Android.mk file 2) I added USE_OSGPLUGIN(jpeg) to OsgMainApp.hpp file. 3) The earth.ive is in Image folder only. The Image directory is in my mobile SD card (/mnt/sdcard/OSG/images). 4) The libosgdb_jpeg.a libjpeg.a libpng.a libtiff.a file is located in both /home/xing/android/obj/local/armeabi and /home/xing/android/obj/local/armeabi-v7a directories. Why the texture is not displaying. Thank you! Cheers, MuXing -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50166#50166 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Memory issues when using uniform shader variables on Intel HD graphics
Hi,
I'm trying to use shaders on an Intel HD 3000 graphics chip (Windows7 x64,
latest graphics driver).
As soon as I pass a uniform variable to the shader (regardless of the type),
the memory of my process increases by about 400MB. Other than that, the shader
works fine.
The size of the object the shader is attached to or the complexity of the
shader do not make a difference. Every additional shader (containing at least
one uniform variable) I use, increases the memory usage by another 400MB.
The problem does not occur on another machine with some NVidia graphics card.
Has anyone encountered a similar problem or does someone have an idea what
could cause a problem like this?
Code:
osg::Program *program = new osg::Program;
osg::Shader *frag = new osg::Shader( osg::Shader::FRAGMENT, fragSource.str() );
osg::Shader *vert = new osg::Shader( osg::Shader::VERTEX, vertSource.str() );
program-addShader( frag );
program-addShader( vert );
// add shader to stateSet
sset-setAttributeAndModes( program, osg::StateAttribute::ON );
// add uniform variable
osg::Uniform *var = new osg::Uniform(MATERIAL_COLOR,
osg::Vec4(1.0f,1.0f,0.0f,1.0f));
sset-addUniform(var);
Code:
// Vertex Shader
void main()
{
gl_Position = ftransform();
gl_ClipVertex = gl_ModelViewMatrix * gl_Vertex;
}
// Fragment Shader
uniform vec4 MATERIAL_COLOR;
void main()
{
gl_FragColor = MATERIAL_COLOR;
}
By the way, I know I'm not using reference pointers :? but this shouldn't be a
problem in this little example.
...
Thank you!
Cheers,
Clemens[/code]
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[osg-users] Design consideration using OSG
Hi, I'm a total noob in using OSG and I would appreciate any advice from the veterans and experts here who have used it in many different projects. Basically I've to design a CAD/CAM in house tool and I've been reading about OSG and OpenSG for quite some time. I've stumbled upon this FAQ (from faq section on 3drealtimesimulation site - osg_faq_1.htm - which I believe is pretty old) and in one of the sections, the author mentioned that; One might think of the difference in a historical context as the difference between Inventor and Performer. OpenSG is used primarily in CAD and manufacturing circles (though that may have changed over the years), where frame rates need only be interactive, whereas Open Scene Graph is focused on higher performance real-time rendering. Neither seems to be exclusive of the needs of the other, but our respective expertise shows through in the final emphasis. I believe there has been significant changes to the both frameworks since then that might make the differences to be smaller and smaller. From a design perspective, what should I take into considerations to achieve high frame rates and interactivity needed by CAD/CAM solution using OSG? Thank you! Cheers, Faizol -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50359#50359 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] select point from pointcloud
Hi, I'm new to OSG and I tried the osgkeyboardmouse example root/OpenSceneGraph/trunk/examples/osgkeyboardmouse/osgkeyboardmouse.cpp but I still couldn't manage to use the polytope intersector to select a subset of points via mouseclick in a pointcloud. Did anybody have the same problem and solve it ? Thank you! Cheers, Markus -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50360#50360 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Difficulty Positioning Camera Manipulator in Geocentric Database
Hi, ... Problem is the camera manipulator rotates but doesn't translate. The desired gaming area consists of a geocentric terrain with a sky dome. Using the osg::viewer and trackball camera manipulator (default view) i can move around the scene, go underneath the dome, look at the terrain etc. fine. now move the action under the dome. I set the intial position of the camera as the center of the terrain at an altitude within the dome using a view matrix. I get the view matrix from the camera and compute the eye, center and up vectors and use these to set the home position of the camera manipulator. ... osg::Vec3 eye,center,up; _viewer-getCamera()-getViewMatrixAsLookAt(eye,center,up); osg::ref_ptrosgGA::TrackballManipulator trackBall = new osgGA::TrackballManipulator; _viewer-setCameraManipulator( trackBall ); viewer-getCameraManipulator()-setHomePosition(eye,center,up,false); ... _viewer-setSceneData(root) ... The starting scene viewpoint is displayed correctly and i can rotate the camera to view everything under the dome, BUT the camera is FIXED in position and i can't move around. ( same behaviour with Flight Manipulator). I was hoping to be able to navigate with the default camera manipulator initially and then add a callback to keep the camera in the gaming area (coordinate frame callback?). Thank you! Cheers, Rob -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50362#50362 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Render passes and stereo handling
Hi, Is there a way to know which eye (left/right) is currently being drawn inside osg::Camera::DrawCallback. There is the UserData field in RenderInfo, but I don't think I can use it for my purpose without having to patch osgUtil::SceneView.cpp - the patch being that I update UserData before drawing each eye. Actually, I am doing render passes with render targets for a stereo application. So I need to switch shader inputs like textures,uniforms for each eye just before the draw call. I figured I can use the PreDrawCallback for the purpose because it is called inside RenderStage::draw just before the actual rendering happens. If someone has a cleaner solution, I would be most grateful. Thank you! Cheers, Gaurav -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50378#50378 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multithreading Culling problems
We had a similar issue. We had a stereo rendering setup that used slave camera's to render the scene. The only thing the main camera did was to swap the buffers. Whats happened is when you do anything that will get bounding boxes of nodes invalidated, if you don't recalculate those they will be recalculated at cull traversal. But in multithreaded mode this is done in parallel and it will lead to flickering because of a race condition. What you can do is call the getBound method on your root node after the update traversal, just before the rendering traversal. After some investigation it turned out this is already done at the beginning of ViewerBase::renderingTraversals() but in our case we had a empty scenegraph attached to our main camera because it did not render anything. So the getBound method was not called on our actual scene. Seeing as you also render to textures and only display those, it could be that you also have some custom scenegraph going on and the bounding boxes are not calculated on the right scenegraph. Hope this helps! Cheers, Pjotr -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50380#50380 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] CompositeViewer multiple windows, same scene problem
Hi, We are having trouble using a CompositeViewer with 2 views in 2 windows, showing the same scene (same Node*). The first view (in addView order) is rendered correctly, but the second view is badly rendered with some missing or garbled geometries. If only one view is added, its rendering is fine. If instead of 2 windows, we use only one window with two contiguous viewports, rendering is fine. Each view has its own Camera and GraphicsContext. We use GraphicsWindowQt with or without the shareWidget argument. Using setUpViewInWindow() instead does the same. Seems that the first render is misusing the GL context or something so that the other has trouble. Threading is set to SingleThreaded to avoid potential sharing problems (but the TaskManager is showing many running threads (?)). The problematic models are FBX exported from 3ds Max, BTW. Is there any setting that has to be set in OSG/CompositeViewer to tell it that the scene is shared? Does anyone have an idea what can be wrong in such a setup? Thank you! Alvaro -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50406#50406 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Problem with a Qt HUD
Hi,
I wan't to show QT controls inside my OSG scene.
I introduced with the examples osghud and osgQTWidgets from the osg project.
First i create a sample project to solve my issue.
The problem is, that the QT- controls are never been displayed on my scene.
I suppose the problem is the WidgetImage or the ImageHandler that i use, but i
have no idea.
Any help is welcome.. :D
Thank you!
Cheers,
Tobias
Code:
TextView::TextView()
{
_HUDCamera = new osg::Camera;
_HUDCamera-setProjectionMatrix(osg::Matrix::ortho2D(0,640,0,480));
_HUDCamera-setReferenceFrame(osg::Transform::ABSOLUTE_RF);
_HUDCamera-setViewMatrix(osg::Matrix::identity());
_HUDCamera-setClearMask(GL_DEPTH_BUFFER_BIT);
_HUDCamera-setRenderOrder(osg::Camera::POST_RENDER);
_HUDCamera-setAllowEventFocus(false);
_HUDCamera-getOrCreateStateSet()-setMode( GL_LIGHTING,
osg::StateAttribute::OFF );
_HUDCamera-getOrCreateStateSet()-setMode( GL_BLEND,
osg::StateAttribute::ON );
}
TextView::~TextView(void)
{
}
osg::Camera* TextView::creation()
{
osg::ref_ptrosgQt::QWidgetImage widgetImage = new
osgQt::QWidgetImage( createDemoWidget() );
osg::ref_ptrosg::Texture2D texture = new osg::Texture2D;
texture-setImage( widgetImage.get() );
osg::ref_ptrosgViewer::InteractiveImageHandler handler = new
osgViewer::InteractiveImageHandler( widgetImage.get(),texture,_HUDCamera);
osg::ref_ptrosg::Geometry quad =
osg::createTexturedQuadGeometry(osg::Vec3(), osg::X_AXIS, osg::Z_AXIS);
quad-setEventCallback( handler.get() );
quad-setCullCallback( handler.get() );
osg::ref_ptrosg::MatrixTransform part = new osg::MatrixTransform;
osg::ref_ptrosg::Geode geode = new osg::Geode;
geode-addDrawable( quad.get() );
geode-getOrCreateStateSet()-setTextureAttributeAndModes( 0, texture.get()
);
geode-getOrCreateStateSet()-setMode(GL_LIGHTING,
osg::StateAttribute::OFF);
geode-getOrCreateStateSet()-setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
part-getOrCreateStateSet()-setTextureAttributeAndModes( 0,
texture.get() );
part-getOrCreateStateSet()-setRenderingHint(
osg::StateSet::TRANSPARENT_BIN );
part-addChild( geode.get() );
/*osg::Node* n = osgDB::readNodeFile(C:\\cow.osg);*/
_HUDCamera-addChild(part);
return _HUDCamera;
}
QWidget* TextView::createDemoWidget( )
{
QLabel* label = new QLabel;
QPushButton* playBtn = new QPushButton(Play);
QPushButton* stopBtn = new QPushButton(Stop);
QWidget* demo = new QWidget;
demo-setGeometry( 0, 0, 800, 600 );
demo-setLayout( new QVBoxLayout );
demo-layout()-addWidget( label );
demo-layout()-addWidget( playBtn );
demo-layout()-addWidget( stopBtn );
return demo;
}
int main( int argc, char** argv )
{
QApplication app( argc, argv );
osgViewer::Viewer viewer;
TextView* text = new TextView();
osg::ref_ptrosg::Group root = new osg::Group;
osg::Node* n = osgDB::readNodeFile(C:\\cow.osg);
root-addChild(text-creation());
viewer.setSceneData( root.get() );
viewer.setCameraManipulator( new osgGA::TrackballManipulator );
viewer.addEventHandler( new osgViewer::StatsHandler );
viewer.setUpViewOnSingleScreen();
while ( !viewer.done() )
{
QCoreApplication::processEvents( QEventLoop::AllEvents, 100 );
viewer.frame();
}
return 0;
}
:D :D
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[osg-users] multipass transparency
Hi,
In open inventor, there is a transparency mode called: delayed blend
Transparent objects are rendered using multiplicative alpha blending, in a
second rendering pass with depth buffer updates disabled. And I want to get the
same effect.
here's what I am trying to do
transparency-setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
transparency-setAttributeAndModes(new osg::BlendFunc(GL_SRC_ALPHA
,GL_ONE_MINUS_SRC_ALPHA), osg::StateAttribute::ON);
_geom_solid-setStateSet(transparency);
class TransparencyTechnique : public osgFX::Technique
{
public:
TransparencyTechnique() : osgFX::Technique() {}
virtual bool validate( osg::State ss ) const { return true; }
protected:
virtual void define_passes()
{
osg::ref_ptrosg::StateSet ss = new osg::StateSet;
ss-setAttributeAndModes( new osg::ColorMask(true, true, true, true) );
addPass( ss.get() );
ss = new osg::StateSet;
osg::Depth* depth = new osg::Depth;
depth-setWriteMask( false );
ss-setAttributeAndModes( depth, osg::StateAttribute::ON );
addPass( ss.get() );
}
};
The result is not right. how should define_passes() be defined?
...
Thank you!
Cheers,
Tina
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[osg-users] X11 Trouble, Building OSG with OpenGL ES 2.0
Hi, I'm trying to build OpenSceneGraph-3.1.0 (dev) using OpenGL ES 2.0 on an i.MX6Q (Armel), but I'm having trouble with the X11. By Compiling, I get the following error: Code: [ 62%] Building CXX object applications/osgversion/CMakeFiles/application_osgversion.dir/osgversion.o Linking CXX executable ../../bin/osgversion /usr/lib/libGAL.so: undefined reference to `XScreenOfDisplay' /usr/lib/libGAL.so: undefined reference to `XGetImage' /usr/lib/libGAL.so: undefined reference to `XCreatePixmap' /usr/lib/libGAL.so: undefined reference to `XCreateGC' /usr/lib/libGAL.so: undefined reference to `XFreeGC' /usr/lib/libGAL.so: undefined reference to `XInitThreads' /usr/lib/libGAL.so: undefined reference to `XMoveWindow' /usr/lib/libGAL.so: undefined reference to `XPending' /usr/lib/libGAL.so: undefined reference to `XStringListToTextProperty' /usr/lib/libGAL.so: undefined reference to `XHeightOfScreen' /usr/lib/libGAL.so: undefined reference to `XCreateImage' /usr/lib/libGAL.so: undefined reference to `XOpenDisplay' /usr/lib/libGAL.so: undefined reference to `XSetWMProperties' /usr/lib/libGAL.so: undefined reference to `XNextEvent' /usr/lib/libGAL.so: undefined reference to `XGetGeometry' /usr/lib/libGAL.so: undefined reference to `XUnmapWindow' /usr/lib/libGAL.so: undefined reference to `XFlush' /usr/lib/libGAL.so: undefined reference to `XCreateWindow' /usr/lib/libGAL.so: undefined reference to `XDestroyWindow' /usr/lib/libGAL.so: undefined reference to `XGetWindowAttributes' /usr/lib/libGAL.so: undefined reference to `XFreePixmap' /usr/lib/libGAL.so: undefined reference to `XWidthOfScreen' /usr/lib/libGAL.so: undefined reference to `XCloseDisplay' /usr/lib/libGAL.so: undefined reference to `XMapRaised' /usr/lib/libGAL.so: undefined reference to `XPutImage' collect2: ld returned 1 exit status make[2]: *** [bin/osgversion] Error 1 make[1]: *** [applications/osgversion/CMakeFiles/application_osgversion.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs Checking for XInitThreads: Code: root@linaro-ubuntu-desktop:~# nm -o /usr/lib/* | grep XInitThreads /usr/lib/libGAL.so: U XInitThreads /usr/lib/libGAL-x11.so: U XInitThreads /usr/lib/libVIVANTE.so: U XInitThreads /usr/lib/libVIVANTE-x11.so: U XInitThreads /usr/lib/libX11.a:locking.o:0060 T XInitThreads I tried: -reinstalling libx11-dev -reinstalling xserver-xorg Thank you! Cheers, Marius -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50483#50483 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] select point from pointcloud
Hi Markus, Default LinesegmentIntersector is unable to handle intersections with lines and points. But PolytopeIntersector which will require a rectangle on screen (or a polytope in space) may do the work for you. The OpenSceneGraph 3.0 Cookbook (Packt Publishing) introduces how to use custom intersector to select points in the last chapter. Unfortunately the whole chapter was removed at last because of page count limitation. But you can still find the source code from the Github repo and test it freely: https://github.com/xarray/osgRecipes/tree/master/cookbook/chapter10/ch10_07 Another way to do point selection effectively is to make use of the glReadPixels() function with depth component. You can then obtain the depth value(s) at your mouse point and compute real point coordinate when it is valid. Wang Rui 2012/10/1 Markus Ikeda markus.ik...@profactor.at: Hi, I'm new to OSG and I tried the osgkeyboardmouse example root/OpenSceneGraph/trunk/examples/osgkeyboardmouse/osgkeyboardmouse.cpp but I still couldn't manage to use the polytope intersector to select a subset of points via mouseclick in a pointcloud. Did anybody have the same problem and solve it ? Thank you! Cheers, Markus -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50360#50360 ___ 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] Render passes and stereo handling
Hi Gaurav, A possible solution I think (but never tested it) is to set a draw callback to left/right render stage (stages can be obtained from camera-getRenderer()-getSceneView()-getRenderStageLeft(), and then use RenderBin::setDrawCallback... Oops). And you may know if left or right render stage is drawing in the callback and change your shader inputs in time. But this is really ugly and unsafe in multithreading mode... Maybe it is good for OSG to add a flag in RenderInfo to indicate if current drawing process is for left or right eye. And I just do wonder if there are some better ideas not to change your stereo inputs on the fly (maybe you can only change the contents and dirty them). Wang Rui 2012/10/2 Gaurav Chaurasia gaurav.chaura...@inria.fr: Hi, Is there a way to know which eye (left/right) is currently being drawn inside osg::Camera::DrawCallback. There is the UserData field in RenderInfo, but I don't think I can use it for my purpose without having to patch osgUtil::SceneView.cpp - the patch being that I update UserData before drawing each eye. Actually, I am doing render passes with render targets for a stereo application. So I need to switch shader inputs like textures,uniforms for each eye just before the draw call. I figured I can use the PreDrawCallback for the purpose because it is called inside RenderStage::draw just before the actual rendering happens. If someone has a cleaner solution, I would be most grateful. Thank you! Cheers, Gaurav -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50378#50378 ___ 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
