Re: [osg-users] model rendering glitch on osg versions 3.0.1
Robert, That fix (#2) worked perfectly! Thanks for begin one of the people that makes the internet great. best, --Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=60600#60600 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] model rendering glitch on osg versions 3.0.1
Hi all, We are using OSG for a simulator that involves rendering collada models of robots. For legacy reasons we use the assimp library for loading them, rather than using OSG's collada plugin. This worked fine up through the 3.0.1 release. However, it started producing strange behavior with 3.2.0. The models now have inconsistent transparency (some parts invisible, so parts fully opaque), and the layering is incorrect (a rear wheel occludes a front wheel from camera perspective). Images attached. Also documented here: github: /golems/grip2/issues/36 (can't post link, but it's on github under grip2, issue #36) This behavior has been reproduced on OSX (retina MBP on 10.9.4), and ubuntu (dell precision T3600 on ubuntu 14.04). Also reproduced using latest 3.3.1 build on Mavericks. We would be grateful for any suggestions on how to resolve this issue. We have not been able to build OSG 3.0.1 OSX Mavericks Thank you! Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=60582#60582 Attachments: http://forum.openscenegraph.org//files/osgkrang_desired_232.png http://forum.openscenegraph.org//files/osgkrang2_189.png http://forum.openscenegraph.org//files/osgkrang1_185.png ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgParticle and transparent objects
I have the same problem; distant transparent objects are drawn in front of the particles, and these objects change backwards depending on the point of view of the camera. Any suggestions please? Thanks! Sebastian Messerschmidt wrote: Hello, After including osgparticle into my renderer I've discovered a problem with alpha blended geometries. For a simple test (to ensure the problem is not on my side) I loaded the cessnafire model along with some alpha blended geometry in osgviewer and the transparent faces are always in front of the fire/smoke. I've done some debugging of the osgparticle stuff, but I don't see where the problem is. What I can say so far, that this is no sorting problem, because blended stuff in front of the particles is always rendered correctly, but elements behind the smoke/fire particles are always rendered in front. Interestingly, when setting the cessna in the cessnafire model to transparent bin, setting alpha values of the material to 0.5 and enabling blending, the cessna itself doesn't show up in front of the smoke. Is there someone who has similar problems or can explain the problem to me? cheers Sebastian -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=47623#47623 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [build] [build] building osgAndroidExampleGLES* on Ubuntu 10.04 with android-ndk-r7
I followed the instructions on the wiki for building the android osg examples, but with ndk7 I kept getting linker errors for anything in libstdc++ until I added another libdir (android-ndk/sources/cxx-stl/gnu-libstdc++/libs/armeabi) to the linker flags. Is this a known problem / is this the correct solution / should this fix go into trunk? See the diff to Android.mk below: Code: Index: jni/Android.mk === --- jni/Android.mk (revision 12892) +++ jni/Android.mk (working copy) @@ -4,7 +4,7 @@ LOCAL_MODULE:= osgNativeLib ### Main Install dir -OSG_ANDROID_DIR:= type your install directory +OSG_ANDROID_DIR:= /home/jbohren/source/OpenSceneGraph LIBDIR := $(OSG_ANDROID_DIR)/obj/local/armeabi ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) @@ -62,6 +62,7 @@ -losgAnimation \ -losgUtil \ -losg \ --lOpenThreads +-lOpenThreads\ +-L/usr/local/android/android-ndk/sources/cxx-stl/gnu-libstdc++/libs/armeabi include $(BUILD_SHARED_LIBRARY) Thanks! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44414#44414 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osg::Image to stringstream as jpg or png
Hi, You probably figured this out, but outstanding issues on forums bug me, and this will help others. When you open fout, you want to denote it as binary output. So something like this should fix it: Code: std::ofstream fout(new.jpg, ios::binary); Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31735#31735 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Two Pass Rendering?
Hi, I have the same problem. Do you know where can I find any example? I have tried to search in the osg examples, but I don't see nothing (perhaps there is an example, but I don't recognize it) Thank you! Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27504#27504 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [osgPPU] Trying to install osgPPU in winXP
Hi, I am trying to install the 0.4 version of osgPPU. [WinXP] When I try to generate the code, cmake says: Code: CMake Error at CMakeLists.txt:244 (INCLUDE): include could not find load file: OsgPPUCPack I have tryed to find that file manually, but it is not in the package. Anyone know where could be the problem? P.D.: I have not nVidia card, so I have not CUDA suport. It shouldn't be the problem, but who knows. Thanks for your time! Cheers, Jon[/code] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27427#27427 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPPU] Trying to install osgPPU in winXP
Hi, OK, I dissabled BUILD_OSGPPU_PACKAGES checkbox, and now it generates the project. I hope it could work like this. Thank you! Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=27431#27431 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Trackball manipulator and screen distance with stereo
Hi, I am trying to do a stereo application to show a terrain and anything it contains. I have used a modified trackball manipulator to capture mouse events, and move the camera. Also, I have configured the stereo inside this modified manipulator (as I have readen in other post). The problem is that, when I try to configure the screen distance (ds-setScreenDistance(camera.focallength)), the final visualization don't change, so the zero paralax is always the center of the trackball. The question is: Can I change this distance from inside the manipulator? Is there any other method to change this distance? Thank you! (And sorry my poor english) Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26823#26823 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Trackball manipulator and screen distance with stereo
Hi Christian, Thank you very much for your answer! :D I can't override the virtual function (I don't know why, but it dont works) :O. However, I can change the value of _distance, and it doesn't change the other features. Thank you again! Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26850#26850 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Trackball manipulator and screen distance with stereo
Hi Michael, I didn't know that signature. Thank you for your answer! Cheers, Jon -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26856#26856 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenGL ES-2.0, OpenGL ES-1.1 and OpenGL 3.x support now ready for testing :-)
Heya I have also been trying to get OSG to compile with the iphone sdk. So far I have gotten a working static library, and the osg plugin compiled. However when I go to load a .osg, I get a segfault in the lighting system... I have also started work on a GraphicsWindowTouch implementation, however I have been unable to test its functionality... Below is my Config file, and a sample output from a run Code: #ifndef OSG_CONFIG #define OSG_CONFIG 1 #define OSG_LIBRARY_STATIC /* #undef OSG_USE_FLOAT_MATRIX */ /* #undef OSG_USE_FLOAT_PLANE */ #define OSG_USE_FLOAT_BOUNDINGSPHERE #define OSG_USE_FLOAT_BOUNDINGBOX #define OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION /* #undef OSG_USE_UTF8_FILENAME */ #define OSG_DISABLE_MSVC_WARNINGS #undef OSG_GLU_AVAILABLE #undef OSG_GL1_AVAILABLE #undef OSG_GL2_AVAILABLE #undef OSG_GL3_AVAILABLE #define OSG_GLES1_AVAILABLE #define OSG_GLES2_AVAILABLE #undef OSG_GL_MATRICES_AVAILABLE #define OSG_GL_VERTEX_FUNCS_AVAILABLE #define OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE #undef OSG_GL_FIXED_FUNCTION_AVAILABLE #endif Code: CullSettings::readEnvironmentalVariables() Adding parent0x490a080 Adding parent0x490a080 DatabasePager::addDatabaseThread() HANDLE_NON_HTTP DatabasePager::addDatabaseThread() HANDLE_ONLY_HTTP Render::Render() 0x492fd50 CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() Adding parent0x490a080 CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() Adding parent0x490a080 CullSettings::readEnvironmentalVariables() Adding parent0x490a080 Adding parent0x490a080 Adding parent0x490a080 Adding parent0x490a080 Adding parent0x490a080 Adding parent0x490a080 _availableQueue.size()=2 FindFileInPath(/Users/jon/Library/Application Support/iPhone Simulator/User/Applications/7607D8A0-6CE1-45A4-8093-26A1AD915C22/TestOpenSceneGraph.app/example.osg): returning /Users/jon/Library/Application Support/iPhone Simulator/User/Applications/7607D8A0-6CE1-45A4-8093-26A1AD915C22/TestOpenSceneGraph.app/example.osg Adding parent0x490a080 Warning: dynamic library 'libosgAnimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(./libosgAnimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading libosgAnimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'libosgAnimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(./libosgAnimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading libosgAnimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'libosgAnimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(./libosgAnimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading libosgAnimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'libosgAnimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(./libosgAnimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading libosgAnimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'libosgAnimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(./libosgAnimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading libosgAnimationOSG_PLUGIN_EXTENSION Warning: dynamic library 'osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION' does not exist (or isn't readable): dlopen(osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION, 9): image not found DynamicLibrary::failed loading osgPlugins-2.9.6/osgdb_osganimationOSG_PLUGIN_EXTENSION View::setSceneData() Reusing exisitng scene0x492ede0 Viewer::realize() - No valid contexts found, setting up view across all screens. GraphicsContext::getWindowingSystemInterface() 0x49064c00x5d0030 createGraphicsContext() keep going??? GraphicsContext::registerGraphicsContext 0x49322f0
Re: [osg-users] OpenGL ES-2.0, OpenGL ES-1.1 and OpenGL 3.x support now ready for testing :-)
Would you mind sharing your Config, and any changes you made the code to make it work in the simulator, I am gonna give it another go tonite and see if i can make some progress. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20527#20527 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenGL ES-2.0, OpenGL ES-1.1 and OpenGL 3.x support now ready for testing :-)
Damn... I keep crashing on a call to glLoadMatrix(GL_MODELVIEW) output below... Code: CullSettings::readEnvironmentalVariables() DatabasePager::addDatabaseThread() HANDLE_NON_HTTP DatabasePager::addDatabaseThread() HANDLE_ONLY_HTTP CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() View::setSceneData() Reusing exisitng scene0x45335d0 Viewer::realize() - No valid contexts found, setting up view across all screens. GraphicsContext::getWindowingSystemInterface() 0x451b4100x5545a0 createGraphicsContext() keep going??? GraphicsContext::registerGraphicsContext 0x4537320 GraphicsContext::createNewContextID() creating contextID=0 Updating the MaxNumberOfGraphicsContexts to 1 GraphicsWindow has been created successfully. osg::State::_maxTexturePoolSize=0 osg::State::_maxBufferObjectPoolSize=0 GraphicsWindowTouch :: grabFocusIfPointerInWindow not implemented yet Viewer::startThreading() - starting threading Viewer::startThreading() - contexts.size()=1 Making scene thread safe Doing add Doing add Doing add gc-getGraphicsThread()-startThread() 0x453fcb0 Set up threading OpenGL extensions supported by installed OpenGL drivers are: GL_EXT_blend_minmax GL_IMG_read_format GL_IMG_texture_compression_pvrtc GL_IMG_texture_format_BGRA GL_OES_depth24 GL_OES_fbo_render_mipmap GL_OES_mapbuffer GL_OES_rgb8_rgba8 OpenGL extension 'GL_ARB_vertex_shader' is not supported. OpenGL extension 'GL_ARB_multitexture' is not supported. OpenGL extension 'GL_EXT_multitexture' is not supported. Doing run 0x453fcb0 isRunning()=1 View::init() OpenGL extension 'GL_ARB_vertex_program' is not supported. OpenGL extension 'GL_EXT_secondary_color' is not supported. OpenGL extension 'GL_EXT_fog_coord' is not supported. OpenGL extension 'GL_ARB_multitexture' is not supported. OpenGL extension 'GL_NV_occlusion_query' is not supported. OpenGL extension 'GL_ARB_occlusion_query' is not supported. OpenGL extension 'GL_EXT_timer_query' is not supported. OpenGL extension '' is not supported. OpenGL extension 'GL_ARB_fragment_program' is not supported. OpenGL extension 'GL_ARB_vertex_program' is not supported. OpenGL extension 'GL_EXT_packed_depth_stencil' is not supported. OpenGL extension 'GL_ARB_shader_objects' is not supported. OpenGL extension 'GL_ARB_vertex_shader' is not supported. OpenGL extension 'GL_ARB_fragment_shader' is not supported. OpenGL extension 'GL_ARB_shading_language_100' is not supported. OpenGL extension 'GL_EXT_geometry_shader4' is not supported. OpenGL extension 'GL_EXT_gpu_shader4' is not supported. glVersion=2, isGlslSupported=YES, glslLanguageVersion=1 Setting up osg::Camera::FRAME_BUFFER ... crash Any advice? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20545#20545 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] freetype and png plugin building errors
Hi to all, I'm facing some problems to build the osgdb_freetype and osgdb_png plugin in 64bits. I built the osg solution in 64bits without problem with visual studio 2005. The examples worked fine. Below are the errors i get when building these two plugins. I'm looking forward for a solution. Thanks in advance. Erreur1error LNK2019: symbole externe non résolu FT_Done_Face référencé dans la fonction public: virtual __cdecl FreeTypeFont::~FreeTypeFont(void) (??1FreeTypeFont@@u...@xz)FreeTypeFont.obj Erreur2error LNK2001: symbole externe non résolu FT_Done_Face FreeTypeFont3D.obj Erreur3error LNK2019: symbole externe non résolu FT_Set_Pixel_Sizes référencé dans la fonction protected: void __cdecl FreeTypeFont::setFontResolution(struct std::pairunsigned int,unsigned int const ) (?setfontresolut...@freetypefont@@ieaaxaebu?$p...@ii@std@@@Z) FreeTypeFont.obj Erreur4error LNK2001: symbole externe non résolu FT_Set_Pixel_Sizes FreeTypeFont3D.obj Erreur5error LNK2019: symbole externe non résolu FT_Load_Char référencé dans la fonction public: virtual class osgText::Font::Glyph * __cdecl FreeTypeFont::getGlyph(struct std::pairunsigned int,unsigned int const ,unsigned int) (?getgl...@freetypefont@@ueaapeavgl...@font@osgText@@aebu?$p...@ii@std@@i...@z) FreeTypeFont.obj Erreur6error LNK2001: symbole externe non résolu FT_Load_Char FreeTypeFont3D.obj Erreur7error LNK2019: symbole externe non résolu FT_Get_Kerning référencé dans la fonction public: virtual class osg::Vec2f __cdecl FreeTypeFont::getKerning(struct std::pairunsigned int,unsigned int const ,unsigned int,unsigned int,enum osgText::KerningType) (?getkern...@freetypefont@@ueaa?avve...@osg@@aebu?$p...@ii@std@@iiw4kerningt...@osgtext@@@Z) FreeTypeFont.obj Erreur8error LNK2001: symbole externe non résolu FT_Get_Kerning FreeTypeFont3D.obj Erreur9error LNK2019: symbole externe non résolu FT_Get_Char_Index référencé dans la fonction public: virtual class osg::Vec2f __cdecl FreeTypeFont::getKerning(struct std::pairunsigned int,unsigned int const ,unsigned int,unsigned int,enum osgText::KerningType) (?getkern...@freetypefont@@ueaa?avve...@osg@@aebu?$p...@ii@std@@iiw4kerningt...@osgtext@@@Z) FreeTypeFont.obj Erreur10error LNK2001: symbole externe non résolu FT_Get_Char_Index FreeTypeFont3D.obj Erreur11error LNK2019: symbole externe non résolu FT_Outline_Get_BBox référencé dans la fonction protected: void __cdecl FreeTypeFont3D::init(void) (?i...@freetypefont3d@@IEAAXXZ)FreeTypeFont3D.obj Erreur12error LNK2019: symbole externe non résolu FT_Outline_Decompose référencé dans la fonction protected: void __cdecl FreeTypeFont3D::init(void) (?i...@freetypefont3d@@IEAAXXZ)FreeTypeFont3D.obj Erreur13error LNK2019: symbole externe non résolu FT_Load_Glyph référencé dans la fonction protected: void __cdecl FreeTypeFont3D::init(void) (?i...@freetypefont3d@@IEAAXXZ)FreeTypeFont3D.obj Erreur14error LNK2019: symbole externe non résolu FT_Set_Char_Size référencé dans la fonction protected: void __cdecl FreeTypeFont3D::init(void) (?i...@freetypefont3d@@IEAAXXZ)FreeTypeFont3D.obj Erreur15error LNK2019: symbole externe non résolu FT_Init_FreeType référencé dans la fonction protected: __cdecl FreeTypeLibrary::FreeTypeLibrary(void) (??0FreeTypeLibrary@@i...@xz) FreeTypeLibrary.obj Erreur16error LNK2019: symbole externe non résolu FT_Done_FreeType référencé dans la fonction public: virtual __cdecl FreeTypeLibrary::~FreeTypeLibrary(void) (??1FreeTypeLibrary@@u...@xz) FreeTypeLibrary.obj Erreur17error LNK2019: symbole externe non résolu FT_New_Face référencé dans la fonction protected: bool __cdecl FreeTypeLibrary::getFace(class std::basic_stringchar,struct std::char_traitschar,class std::allocatorchar const ,unsigned int,struct FT_FaceRec_ * ) (?getf...@freetypelibrary@@ieaa_naebv?$basic_str...@du?$char_traits@d...@std@@v?$alloca...@d@2@@std@@IAEAPEAUFT_FaceRec_@@@Z) FreeTypeLibrary.obj Erreur18error LNK2019: symbole externe non résolu FT_Open_Face référencé dans la fonction protected: unsigned char * __cdecl FreeTypeLibrary::getFace(class std::basic_istreamchar,struct std::char_traitschar ,unsigned int,struct FT_FaceRec_ * ) (?getf...@freetypelibrary@@ieaapeaeaeav?$basic_istr...@du?$char_traits@d...@std@@@std@@IAEAPEAUFT_FaceRec_@@@Z) FreeTypeLibrary.obj Erreur19error LNK2019: symbole externe non résolu FT_Set_Charmap référencé dans la fonction protected: void __cdecl FreeTypeLibrary::verifyCharacterMap(struct FT_FaceRec_ *) (?verifycharacter...@freetypelibrary@@IEAAXPEAUFT_FaceRec_@@@Z) FreeTypeLibrary.obj Erreur20fatal error LNK1120: 14 externes non résolus J:\OSG2.6.1\SRC\build_x64\bin\Debug\..\osgPlugins-2.6.1\osgdb_freetyped.dll
Re: [osg-users] Compiled Maya 7.01 OSG Exporter
Hi Andreas, We have managed to compile a functional version for Maya 8.5, though we have not tried for version 7. We have also fixed up the multexturing export and are gradually adding some functionality as we need it. I have found this plug in not overly reliable for exporting large scenes, i.e it has a habit of crashing Maya so hopefully we can fix that as well. I have had this /// Error: The operation completed successfully./ problem before and tracked it back to missing dependencies, have you checked the plug in with dependency walker www.*dependencywalker*.com to see if you are missing anything? You can often find missing dll's at http://www.dll-files.com Cheers Jon Andreas Åhrling wrote: Hi I have read the archive threads and I have the same problems as other people posted got maya says /// Error: The operation completed successfully./ From what I can understand Neils posts it could be the osgcharacter.dll that could be the cause of this problem. So with some help from my developer that can do the things with compile, we recomiled, but we get the same problem over and over again. Do anyone have a working version of the osg exporter for maya 7? Many thanks /Andreas neil south ___ 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] Exporting from Maya
Hi Todd, I mostly use FLT for this, painful though it is, I am not sure why your textures are missing though? I tend to use Maya Bonus Tools organise files prior to export just to keep everything together. You will need to remember to freeze transforms on all objects including group nodes, and also delete all history. I have compiled a modded Maya 8.5 version of the DIO soft maya exporter obtained from https://subversion.vrac.iastate.edu/DemoApp/trac/browser/trunk/src/osgMaya It sort of works, that is, it functions ok for models that are not overly complex, as soon as you are exporting models with polygons over the 30 k mark it falls over. The code itself could do with a cleanup to say the least and I have not had the time to pull it apart to try and fix it. At risk of getting a bollocking, getting content into the osg in general is unnecessarily difficult IMHO. Cheers Jon Todd J. Furlong wrote: I'm interested in getting the community's input on the best way to export from Maya to an OSG-readable format. I'm looking for something that will support scene structure, textures, and potentially shaders. We tried FLT export from Maya, but the textures didn't come into OSG. Has anyone come up with a reliable way to bring in Maya data? -Todd ___ 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] Exporting from Maya
Hi Gordon, A fair call and admittedly one I was expecting given my blaspheming ;) as a lowly content creator I will just quietly crawl back into my hole and dream of flawless interlinking toolchains.that's a gaming background for you :) Seriously though when we get out from under the current workload we plan to do just as you have rightly suggested. We need it so other folks must also have need for a prime time 3d app with decent osg export functionality. Cheers Jon Gordon Tomlinson wrote: Not quite a bollocking yet Jon ;) But if you want to make it easier to get Maya models into Osg perhaps you could write a direct Maya file reader for OSG and if you're feeling really generous or adventurous you could also add write capabilities for the Maya file handler :) On a general note, I have used most scene graphs technologies that have been out over many years I have been involved in vis-sim (dang a long time now too ) and the OSG offers the most import capabilities, I have never had a real issue in getting my data in to OSG, whether the data is traditional vis-sim, GIS, GeoInt, Lidar, Web, KML, Satellite, CAD, 3d, Flt, User data etc. Now I may have had to use other tools at time to convert data or wrote my own loaders(e.g. LIDAR), that perfectly acceptable and understood. The power of The OSG is that the USERS can extended it very easily if OSG is not currently supporting an area they would like, OSG supports a whole lot of areas most scene graphs do not thanks to hard work and generous contributions of many folks on the list past and present but it cannot really be expected to support everything. Jon, I and others look forward to your generous contribution of a Maya file reader so that it is not unnecessarily difficult to work with in the future for Maya users :) ( see no bollocking ;) ) __ Gordon Tomlinson [EMAIL PROTECTED] IM: [EMAIL PROTECTED] www.vis-sim.com www.gordontomlinson.com __ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Newell Sent: Sunday, September 07, 2008 8:46 PM To: OpenSceneGraph Users Subject: Re: [osg-users] Exporting from Maya Hi Todd, I mostly use FLT for this, painful though it is, I am not sure why your textures are missing though? I tend to use Maya Bonus Tools organise files prior to export just to keep everything together. You will need to remember to freeze transforms on all objects including group nodes, and also delete all history. I have compiled a modded Maya 8.5 version of the DIO soft maya exporter obtained from https://subversion.vrac.iastate.edu/DemoApp/trac/browser/trunk/src/osgMaya It sort of works, that is, it functions ok for models that are not overly complex, as soon as you are exporting models with polygons over the 30 k mark it falls over. The code itself could do with a cleanup to say the least and I have not had the time to pull it apart to try and fix it. At risk of getting a bollocking, getting content into the osg in general is unnecessarily difficult IMHO. Cheers Jon Todd J. Furlong wrote: I'm interested in getting the community's input on the best way to export from Maya to an OSG-readable format. I'm looking for something that will support scene structure, textures, and potentially shaders. We tried FLT export from Maya, but the textures didn't come into OSG. Has anyone come up with a reliable way to bring in Maya data? -Todd ___ 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 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osg and speedtree
Hi Richard, Thanks for your assistance, at this stage we have mostly completed option 1, still a few issues but mostly functional, this is essentially little more than a quick and dirty hack that does limit scope on what we can do with the trees in our particular circumstance. In the long run this approach won't cut it, and we will look at a more complete solution, I can see at a glance however that we are likely to hit the same issues with LOD's as you have.joy o joy :) Will let you know how we get along and if we work out a way around it. Cheers Jon Schmidt, Richard wrote: Hi Jon, we have tried to integrate speedtree into osg. There are serveral ways to do it: 1. alternative: Just use the opengl example from speedtree and wrap it with a custom drawable. Using this solution there are many pros: * easy to integrate cons: * your are using the texture loading/management of speedtree * you loose the ability of multithreading/multicontext stuff of osg, because the speedtree example uses CG in a non-multicontext version 2. alternative: Create a osg wrapper for CG (as custom stateattributes) in osg and use the example to build the appropiate osg geometry. pros: * no need to touch the speedtree shader * useable in multicontext/multithreaded environment. cons: * Integrating CG into osg is a daunting task. However CG does not make any guaranties about the opengl state after it has been applied, so you can't use it with other stateattributes or in a hierarchy of statesets. So I wouldn't recommend using CG at all in OSG. 3. alternative: Like above you port all the geometry to osg as well as the CG shaders to GLSL. Porting the shaders to GLSL is easy. I haven't done anything with shaders before, but if you take a look at Mike Weiblen GLSL quickrefernce it should be really easy to port the CG shader. pros: * now is pure osg, you don't have any custom drawable or wrappers in it, EXCEPT: SpeedWind - Speedtree provides a class for creating wind. Just build a basic wrapper which gets called in the update cycle. The next thing you have to care about is how you organize your scenegraph (for LOD stuff). Thats were I am currently stuck with. Richard -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Newell Sent: Thursday, August 07, 2008 1:56 AM To: OpenSceneGraph Users Subject: [osg-users] osg and speedtree ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg and speedtree
Hi everyone, I know this question has been asked previously but I have not been able to locate a definitive answer so.. We have a need to implement speedtree into OSG, and am wondering if anyone has had prior success with this? From a cursory glance it does not appear that it will be as straight forward as the SPT documentation would have us believe. If so does anyone have any pointers, tips or perhaps even reference code they may be willing to share that may be of assistance??? I would be grateful for any help! cheers Jon Newell ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Bump mapping question
Hi Judie A rarer than hens teeth content question :) We just use a standard 24 bit normal maps, for which we use a few different tools, the least sophisticated or useful of which is the Nvidia tool, works but is ugly and output is average. Xnormal www.*xnormal*.net and Crazybump http://www.crazybump.com/ are the primary ones, of which crazy bump is outstanding for extracting normal maps and displacement maps from images Xnormal is great for extracting normal maps from high rez models. X normal is free, Crazybump is not. cheers Jon Judie wrote: fyi... I found this link: http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a01058.html#_details and I am downloading NVidia's plugins for photoshop now hoping that will be what I need. On Jul 2, 10:37 am, Judie [EMAIL PROTECTED] wrote: Hi, I am trying to add bump mapping and I am wondering what the bump map format should be (i.e. bmp with 8 bits). Are there any examples? I am using osgFX::BumpMapping. I want to know what the format for the map in this call should be: bump-setOverrideNormalMapTexture( bumpTex ); Thanks, Judie ___ osg-users mailing list [EMAIL PROTECTED]://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph... ___ 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::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image
I tried disabling the unified backbuffer in the NVIDIA control panel, but it didn't seem to have any effect. -Jon. -Original Message- From: [EMAIL PROTECTED] [mailto:osg-users- [EMAIL PROTECTED] On Behalf Of Jason Daly Sent: Tuesday, June 17, 2008 11:48 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osg::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image Goldman, Jon wrote: (note: for some reason my email reader did not receive your latest message from this thread, and therfore to quote I had to paste from http://lists.openscenegraph.org/pipermail/osg-users- openscenegraph.org/2008-June/012825.html) Robert, to answer your questions-- -- Yes, all the windows are on screen at the same time; -- They are rendering the same scene graph, but each window has a different camera view into the scene; -- Due to the architecture of the overall larger application that our OSG codes are linked with, we can not use one onscreen window. I did test our OSG-based codes with osg::Camera::FRAME_BUFFER_OBJECT, on another Windows XP box that has a NVIDIA Quadro FX 3000, and saw the same results. Unfortunately our application is also running C#, and a Windows COM server at the same time, so we can not test on Linux or UNIX. This is just a thought, but since you're using a Quadro, what happens if you disable the unified backbuffer in the NVIDIA control panel? --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] osg::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image
(note: for some reason my email reader did not receive your latest message from this thread, and therfore to quote I had to paste from http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/2008-June/012825.html) Robert, to answer your questions-- -- Yes, all the windows are on screen at the same time; -- They are rendering the same scene graph, but each window has a different camera view into the scene; -- Due to the architecture of the overall larger application that our OSG codes are linked with, we can not use one onscreen window. I did test our OSG-based codes with osg::Camera::FRAME_BUFFER_OBJECT, on another Windows XP box that has a NVIDIA Quadro FX 3000, and saw the same results. Unfortunately our application is also running C#, and a Windows COM server at the same time, so we can not test on Linux or UNIX. I have not tried testing osg::Camera::PIXEL_BUFFER_RTT on the Quadro FX 3000, since osg::Camera::FRAME_BUFFER_OBJECT does work on the Quadro FX 5600 and should suffice for us. And some follow-up questions: a) Should the rendering be showing up in each window when osg::Camera::FRAME_BUFFER_OBJECT is enabled? b) Is there a simple/easy way to take the image data that is rendered, i.e. the fboImage from my code snippet below, and write those pixels into the window's framebuffer, so that we see the rendering? For example, osg::Image::readPixels() reads pixels from the current frame buffer at specified position and size, using glReadPixels. I don't see an equivalent glDrawPixels() methods? c) Is it possible to intermix OSG calls and OpenGL calls? For example, can I call the appropriate glPushXXX/glPopXXX functions, with a glDrawPixels() in between to show my data? d) Is it possible to re-structure our scene graph with a switch node as the root, to get my desired effect: the switch would have two children, one child a camera with osg::Camera::FRAME_BUFFER and the other child is a camera that has osg::Camera::FRAME_BUFFER_OBJECT? I was hoping I could switch between the children when I wanted to see the rendered view on screen, but this did not work. I was getting confused with the master/slave cameras on osg::View and the cameras that I was adding as children to the osg::Switch, so I am probably doing something wrong... -Jon. [osg-users] osg::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image Robert Osfield robert.osfield at gmail.com Mon Jun 16 08:05:14 PDT 2008 * Previous message: [osg-users] osg::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image * Next message: [osg-users] Implementing OcclusionQueryNode? * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Hi Jon, Do you have all these windows on screen at one time? Are they all rendering the same view and scene graph? Is it possible to use one onscreen window and muiltiple FBOs? As a sanity test please try other hardware/OpenGL drivers and if possible OSs, as if this is driver problem they it's best to know early on so you can then know what to do about workarounds. Robert. On Mon, Jun 16, 2008 at 3:31 PM, Goldman, Jon jgoldma at sandia.gov wrote: Hi Robert, In our application we open several windows, on the order of 10 at a time. In each window we render a viewpoint into the scene. Then we capture each window individually and send each video image frame from each window down the network. Incidentally we use Unreal Streaming Technologies (http://www.umediaserver.net/index.html) media server products for that part. What is happening is that either because we have so many windows, or because of operating system windows (this all runs on Windows XP) being displayed on the screen, when one window overlaps another, it corrupts that part of the image. So basically we want to fix that problem. Make sense? As I wrote, using the osg::Camera::FRAME_BUFFER_OBJECT render implementation mostly works, except that the on-screen window has garbage in it. We want to be able to see the on-screen window for debugging and proof-the-system-is-working, especially once we deliver the system to our customer. -Jon -Original Message- From: osg-users-bounces at lists.openscenegraph.org [mailto:osg-users-bounces at lists.openscenegraph.org] On Behalf Of Robert Osfield Sent: Monday, June 16, 2008 3:07 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osg::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image Hi Jon, I can't work out exactly what you are trying to achieve with your render offscreen. So could you please from a high level explain what effect you are trying to achieve. Robert. On Fri, Jun 13, 2008 at 1:07 AM, Goldman, Jon jgoldma at sandia.gov wrote: Hi, I am somewhat new to OpenSceneGraph. For my project we need to render offscreen -- so that overlapping windows do not corrupt the rendered image. We are using osg::Camera
[osg-users] osg::Camera::FRAME_BUFFER_OBJECT, on-screen windows not reflecting rendered image
Hi, I am somewhat new to OpenSceneGraph. For my project we need to render offscreen -- so that overlapping windows do not corrupt the rendered image. We are using osg::Camera::FRAME_BUFFER_OBJECT render implementation, and getting the core behaviour we want, which is to say that we can extract the correctly rendered pixels from the image attached to the camera/frame buffer object. However, I still have two issues, and a question on performance: 1) The on-screen window is not showing the rendered image. Instead it is filled with garbage (or black) pixels. The question is what is the best way to reflect the contents of the fbo image? Should we do as osgprerender example does and create some geometry (osg::Geometry) and then texturemap the image onto the surface, or is there another (better?) way to push the pixels into the framebuffer so that the on-screen window displays properly? 2) using osg::Camera::PIXEL_BUFFER_RTT render implementation crashes on our system. We are running 32-bit Windows XP with dual SLI-graphics NVIDIA 5600 cards. I didn't spend a lot of time on this problem, mainly wondering if others are seeing the same? 3) Question: Any recommendation(s) on ways to increase/maximize performance when using fbo? Here is a code snippet showing how we are currently setting up the fbo: . . . osg::Image * fboImage = new osgImage(); fboImage-allocateImage( width, height, 1, GL_RGB, GL_UNSIGNED_BYTE); wc-cameraPostRenderCB = new WindowCapturePostDrawCallback(wc-getView(), fboImage, NULL); // attach the image so it's copied on each frame. theCamera-attach( osg::Camera::COLOR_BUFFER, fboImage); osg::Camera::RenderTargetImplementation renderImplementation; renderImplementation = osg::Camera::FRAME_BUFFER_OBJECT; // tell the camera to use OpenGL frame buffer object where supported. theCamera-setRenderTargetImplementation(renderImplementation); // set the post render callback theCamera-setPostDrawCallback(wc-cameraPostRenderCB); . . . Thanks, -Jon Goldman Sandia National Laboratories Albuquerque, New Mexico ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Active stereo support in OSG?
Hi Bob, We have more or less this exact setup, 2 x Christie Mirage HD3's, Quadro 5600 and Nuvision 60GX shutter glasses on a 160 degree curved screen. Once the correct parameters are declared we have has no problems running in Quad buffer stereo with OSG. The only issue we have encountered has been with occasional swapping of left and right that we have isolated to the less than stellar drivers Nvidia have been releasing of late. cheers Jon Frauciel Luc wrote: -Message d'origine- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Jean-Sébastien Guay Envoyé : mercredi 23 avril 2008 15:39 À : OpenSceneGraph Users Objet : [osg-users] Active stereo support in OSG? Hi everyone, Hi Jean-Sebastian I'd like to ask if anyone has experience using active stereo with OSG. To be more precise, the hardware we're looking to use is Mirage HD3K projector nVidia Quadro FX 5600 video card nuvision emitters and 60GX LCD shutter glasses I work with nVidia Quadro FX 5600 and nuvision emitters and 60GX LCD shutter glasses on a daily basis. OSG will work out of the box in QUAD_BUFFER mode. The only thing you'll have to do is to declare some parameters to adjust stereo with the geometry of your projector : See : http://www.openscenegraph.org/projects/osg/wiki/Support/UserGuides/StereoSettings OSG_STEREOON Turn stereo on OSG_STEREO_MODE QUAD_BUFFER Use quad buffered stereo when in stereo. OSG_SCREEN_DISTANCE 0.50Set the distance the viewer is from screen in metres (default shown) OSG_SCREEN_HEIGHT 0.26Set the height of image on the screen in metres (default shown) OSG_SCREEN_WIDTH 0.325 Set the width of image on the screen in metres (default shown) OSG_EYE_SEPARATION0.06Set the eye separation - interoccular distance (default shown.) And that should be ok for the OSG side. On the hardware side, you'll have to connect cables :D and check the stereo enable box in the nvidia settings panel. You should have the same result than with anaglyphic stereo (a better result in fact). Luc Now, I think this setup requires (and supports) quad-buffer stereo. And I think I saw that OSG supports that out-of-the-box. Does it work well? Any issues setting it up? Any gotchas on the OSG side? One problem we have is that the hardware is off-site (*far* off-site), and it's unlikely we'll have access to it for testing. We just have regular GeForce 8800 cards and regular monitors here. Should I expect it to just work(tm) ? Is there a way I can do some useful testing here? Perhaps using anaglyphic stereo with red/cyan glasses, (we have those :-) - will that be representative of the quad-buffer stereo support? Thanks in advance, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-opensce negraph.org ** Pensez à l'environnement avant d'imprimer ce message Think Environment before printing Le contenu de ce mél et de ses pièces jointes est destiné à l'usage exclusif du (des) destinataire(s) désigné (s) comme tel(s). En cas de réception par erreur, le signaler à son expéditeur et ne pas en divulguer le contenu. L'absence de virus a été vérifiée à l'émission, il convient néanmoins de s'assurer de l'absence de contamination à sa réception. The contents of this email and any attachments areconfidential. They are intended for the named recipient (s) only. If you have received this email in error please notifythe system manager or the sender immediately and do not disclose the contents to anyone or make copies. eSafe scanned this email for viruses, vandals and malicious content. ** ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Jon Newell Lead Developer VRS Unit 4, 19 Musgrave St, West End, Queensland, 4101 Mob 0421 979 810 Ph (07) 3846 5066 Fax (07) 3255 3530 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Little slave cam that represents the scene
Hello,
I came back with this problem of first/third view person.
Paul, following is what I did, and it doesn't give me what I was expecting.
So, can you be more precise regarding the inverse of the cow's
transformation?
cViewer = new osgViewer::CompositeViewer();
osg::ref_ptrosg::Group root = new osg::Group;
root-addChild(makeFrustumFromCamera(NULL));
root-addChild(mscene-getScene());
// Create View 0 -- Just the loaded model.
{
osg::ref_ptrosgViewer::View view = new osgViewer::View;
cViewer-addView(view.get());
view-setUpViewInWindow(10, 10, 640, 480);
view-setSceneData(_root.get());
view-setCameraManipulator(new osgGA::TrackballManipulator);
/***/
//take the inverse of the model's transformation and set it as the
view matrix to see what the model see
osg::Matrixd proj =
cViewer-getView(0)-getCamera()-getProjectionMatrix();
osg::Matrixd mv = cViewer-getView(0)-getCamera()-getViewMatrix();
osg::MatrixTransform* mt = new osg::MatrixTransform;
mt-setMatrix(osg::Matrixd::inverse(mv));
view-setSceneData(mt);
//this step inverts the wireframe on the view 1!
}
// Create view 1 -- Contains the loaded moel, as well as a wireframe frustum
derived from View 0's Camera.
{
osg::ref_ptrosgViewer::View view = new osgViewer::View;
cViewer-addView(view.get());
view-setUpViewInWindow(10, 510, 640, 480);
view-setSceneData(root.get());
view-setCameraManipulator(new osgGA::TrackballManipulator);
}
// Update the wireframe frustum, we need to find a way to adapt the
mainwindow and not create other instance
while (!cViewer-done()){
root-removeChild(0, 1);
root-insertChild(0,
makeFrustumFromCamera(cViewer-getView(0)-getCamera()));
cViewer-frame();
}
I want to see what the cow see in the view 0.
The view 1 contains a wireframe which starts on the eyes of the model and
shows us the view 0 (view 1 = the third view person)
So, from the view 0, I can see the scene (since the eye of the model) but
not the model (view 0 = the first view person).
Thanks in advance for your help.
Jon
_
For a view of what the cow is seeing, take the inverse of the cow's
transformation and set it as the view matrix.
Hope that helps,
-Paul
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[osg-users] Little slave cam that represents the scene
Hi Paul, Thanks for your indication. Your example is very nice ! I took it from the trac :p Unfortunately, it's not quite what I expected. If you take the cow, and your example, I would like to have on the top screen the model moving (like currently adding a wireframe to see what the cow see) and the other view would represent what the cow see (so we cannot see the cow). It's a view corresponding to what the eyes of the cow are seeing. I hope I'm clear enough. I think I can adapt your example to my needs, but my osg skill (like my English) are poor! So if you have indications on how adapt it, it would be very nice! Thanks again for your help and your very nice example. Jon ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Little slave cam that represents the scene
Thanks for taking care of my issue. How could I take the inverse of the cows transformation ? I dont understand why this could give me what the cow is seeing. It seems that its what you do in your osg3rdpersonview example. (line 124) Mainly, could this be done by something like: osg::Matrixd mv = camera-getViewMatrix(); osg::MatrixTransform* mt = new osg::MatrixTransform; mt-setMatrix(osg::Matrixd::inverse(mv)); //where camera points to my main camera in my scene I will try it and I will give you a feedback asap. Thanks again for your help. Jon De : Paul Martz [mailto:[EMAIL PROTECTED] Envoyé : vendredi 21 mars 2008 22:51 À : 'Jonathan Delfour'; 'OpenSceneGraph Users' Objet : RE: [osg-users] Little slave cam that represents the scene For a view of what the cow is seeing, take the inverse of the cow's transformation and set it as the view matrix. Hope that helps, -Paul _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Sent: Friday, March 21, 2008 1:56 PM To: osg-users@lists.openscenegraph.org Subject: [osg-users] Little slave cam that represents the scene Hi Paul, Thanks for your indication. Your example is very nice ! I took it from the trac :p Unfortunately, its not quite what I expected If you take the cow, and your example, I would like to have on the top screen the model moving (like currently adding a wireframe to see what the cow see) and the other view would represent what the cow see (so we cannot see the cow). Its a view corresponding to what the eyes of the cow are seeing. I hope Im clear enough. I think I can adapt your example to my needs, but my osg skill (like my English) are poor! So if you have indications on how adapt it, it would be very nice! Thanks again for your help and your very nice example. Jon ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Camera and light problem
Thanks Vincent for your answer.
I tried to follow your suggestion, but the problem persists.
If you look at the code, I have :
|_root
---|_modelGraph
---|transform
-|lightsource
-|geode
Any suggestions ? What are my mistakes?
My goal is to have a model moving with the camera and a light represented by
a sphere that does not move (fixed coord).
Just one precision: when I place the light in the scene, the light
coordinates depends of the model: ((0,0,0) puts the light inside the model)
Could this explain the problem?
How can I prevent this?
Thanks again.
{
//_modelGraph group represents the current scene
//_root group will contains _modelGraph plus the light
//create the light
osg::ref_ptrosg::Light light = new osg::Light;
//make the light a point light by setting w to 1.0
light-setPosition(osg::Vec4(-10.0f, -10.0f, 0.0f, 10.0f));
//create a lightsource for the light
osg::ref_ptrosg::LightSource lightSource = new osg::LightSource;
//create a transformation node that will move the node in the scene
osg::ref_ptrosg::MatrixTransform transform = new osg::MatrixTransform;
transform-addChild(lightSource.get());
//Position the light
osg::Vec3 pos(-5.0f, 10.0f, 0.0f);
transform-setMatrix(osg::Matrix::translate(pos));
//create a small sphere to represent the lights position
osg::ref_ptrosg::Geode geode = new osg::Geode;
osg::ref_ptrosg::TessellationHints hints = new osg::TessellationHints;
hints-setDetailRatio(0.3);
osg::ref_ptrosg::ShapeDrawable shape = new osg::ShapeDrawable(new
osg::Sphere(osg::Vec3(0.0f, 0.0f, 0.0f), 0.6f), hints.get());
shape-setColor(lightColor);
geode-addDrawable(shape.get());
transform-addChild(geode.get());
_root-addChild(transform.get());
//add the model to the light's root group
_root-addChild(_modelGraph.get());
}
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[osg-users] Code porting
Hello Robert, Thanks for your answer. Unfortunately, when I do setClearMask() operation on a camera, the scene becomes black and nothing more. I've ported this tutorial and this code is the only remaining ! Not so easy J If you have any idea. Thanks in advance, Regards. Jon _ Hi Jon, You can control the clear mask via; camera-setClearMask(0x0); Which is a bit more straight forward than having to dig deep inside osgProducer. At the viewer level it'd be: viewer.getCamera()-setClearMask(0x0); I'm not familiar with this example, but clearly it needs porting across. As I'm not familiar I can't say exactly what to change, but in general you can move cameras between the scene graph and the view but more easily than was possible before 2.x, this means that some tasks can now be solved in a more natural way. As a general task we'll need to complete the work on porting the old 1.x based tutorials across to 2.x, in general this will be a simplification as much as a porting job. _ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Code porting
Hello,
I'm currently working on a scene and I try to reproduce the sun light.
I looked at osgmanylight tutorial from osg web site.
But I'm facing a problem with this code:
//do not allow the osgProducer's internal RenderStage clear the frame buffer
//if the RenderStage did clear the frame buffer, we would lose all of
//the rendering we did in the light passes
osgProducer::OsgCameraGroup::SceneHandlerList shvec =
viewer.getSceneHandlerList();
for( osgProducer::OsgCameraGroup::SceneHandlerList::iterator itr =
shvec.begin();
itr != shvec.end(); ++itr ) {
(*itr)-getSceneView()-getRenderStage()-setClearMask(0);
}
What is the equivalent in osg 2x?
The tutorial code :
http://www.fx.clemson.edu/~acnatha/devnull/osg/osgmanylights.tar.gz
Thanks in advance,
Best regards.
John.
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[osg-users] Get pixels from a scene in a matrix in order to modify pixels color
Hello all, I would like to get pixels in a matrix of a zone in order to get colors (yuv) and modify them. Any way to do this quickly? I would like to use GPU and not CPU. Using FBO.? Thanks in advance. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] glsl examples
Hi everyone, Im wondering if anyone has an example of a GLSL normal mapped osg file I could have a look at? The provided examples have been useful for simple generators (no intended disrespect to Benoit Mandelbrot). However I need to integrate an illuminated Ward or Ashkihmin/Shirley shader into my scene to simulate some Alucobond surface treatments on a building and thus far am not achieving much success. any help would be most appreciated! cheers Jon Newell ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
