Re: [osg-users] [build] problem compiling osg 3.0.0 for Android
Hi, I am having some trouble compiling osg for Android... These are the options I pick with cmake: Code: OSG_GL1_AVAILABLEOFF OSG_GL2_AVAILABLEOFF OSG_GL3_AVAILABLEOFF OSG_GLES1_AVAILABLE OFF OSG_GLES2_AVAILABLE ON OPENGL_INCLUDE /home/rubn/data/android/gl/khronos_headers/GLES2 OPENGL_LIBRARY /home/rubn/data/android/android-ndk/platforms/android-9/arch-arm/usr/lib/libGLESv2.so OPENGL_egl_LIBRARY /home/rubn/data/android/android-ndk/platforms/android-9/arch-arm/usr/lib/libEGL.so OSG_GL_DISPLAYLISTS_AVAILABLEOFF SG_GL_MATRICES_AVAILABLE OFF OSG_GL_VERTEX_FUNCS_AVAILABLEOFF OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE OFF OSG_GL_FIXED_FUNCTION_AVAILABLE OFF OSG_CPP_EXCEPTIONS_AVAILABLE OFF OSG_BUILD_ANDROID_PLATFORM ON ANDROID_NDK/home/rubn/data/android/android-ndk DYNAMIC_OPENTHREADS OFF DYNAMIC_OPENSCENEGRAPHOFF When I press generate everything works just fine, no error messages... When I try to compile using make from the shell, I get: Code: rubn@CPU00063:~/data/OpenSceneGraph/build$ make [ 0%] Generating Android-OpenSceneGraph Android NDK: NDK installation path auto-detected: '/home/rubn/data/android/android-ndk' Android NDK: GNU Make version 3.81 detected Android NDK: Host OS was auto-detected: linux Android NDK: Host CPU was auto-detected: x86 Android NDK: HOST_TAG set to linux-x86 Android NDK: Host awk tool was auto-detected: awk Android NDK: Host awk test returned: Pass Android NDK: This NDK supports the following toolchains and target ABIs: Android NDK:arm-linux-androideabi-4.4.3: armeabi armeabi-v7a Android NDK:x86-4.4.3: x86 Android NDK: Found platform root directory: /home/rubn/data/android/android-ndk/platforms Android NDK: Found supported platforms: android-3 android-4 android-5 android-8 android-9 Android NDK: PLATFORM android-3 supports: arm x86 Android NDK: ABI arm sysroot is: /home/rubn/data/android/android-ndk/platforms/android-3/arch-arm Android NDK: ABI x86 sysroot is: /home/rubn/data/android/android-ndk/platforms/android-3/arch-x86 Android NDK: PLATFORM android-4 supports: arm x86 Android NDK: ABI arm sysroot is: /home/rubn/data/android/android-ndk/platforms/android-4/arch-arm Android NDK: ABI x86 sysroot is: /home/rubn/data/android/android-ndk/platforms/android-4/arch-x86 Android NDK: PLATFORM android-5 supports: arm x86 Android NDK: ABI arm sysroot is: /home/rubn/data/android/android-ndk/platforms/android-5/arch-arm Android NDK: ABI x86 sysroot is: /home/rubn/data/android/android-ndk/platforms/android-5/arch-x86 Android NDK: PLATFORM android-8 supports: arm x86 Android NDK: ABI arm sysroot is: /home/rubn/data/android/android-ndk/platforms/android-8/arch-arm Android NDK: ABI x86 sysroot is: /home/rubn/data/android/android-ndk/platforms/android-8/arch-x86 Android NDK: PLATFORM android-9 supports: arm x86 Android NDK: ABI arm sysroot is: /home/rubn/data/android/android-ndk/platforms/android-9/arch-arm Android NDK: ABI x86 sysroot is: /home/rubn/data/android/android-ndk/platforms/android-9/arch-x86 Android NDK: Found stable platform levels: 3 4 5 8 9 Android NDK: Found max platform level: 9 Android NDK: Looking for AndroidManifest.xml in /home/rubn/data/OpenSceneGraph/build Android NDK: Found it ! Android NDK: Found project path: /home/rubn/data/OpenSceneGraph/build Android NDK: Parsing Application.mk Android NDK: Using build script ./Android.mk Android NDK: Application 'local' is not debuggable Android NDK: Selecting optimization mode through Application.mk: release Android NDK: Adding import directory: /home/rubn/data/android/android-ndk/sources Android NDK: Building application 'local' for ABI 'armeabi' Android NDK: Using target toolchain 'arm-linux-androideabi-4.4.3' for 'armeabi' ABI Android NDK: Looking for imported module with tag 'cxx-stl/gnu-libstdc++' Android NDK: Probing /home/rubn/data/android/android-ndk/sources/cxx-stl/gnu-libstdc++/Android.mk Android NDK: Found in /home/rubn/data/android/android-ndk/sources/cxx-stl/gnu-libstdc++ Android NDK: Trying to define local module 'OpenThreads' in /home/rubn/data/OpenSceneGraph/build/src/OpenThreads/pthreads/Android.mk. Android NDK: But this module was already defined by /home/rubn/data/OpenSceneGraph/build/src/OpenThreads/pthreads/Android.mk. /home/rubn/data/android/android-ndk/build/core/build-module.mk:34: *** Android NDK: Aborting.. Stop. make[2]: *** [Android-OpenSceneGraph] Error 2 make[1]: *** [CMakeFiles/ndk.dir/all] Error 2 make: *** [all] Error 2 And that's pretty much it... I also try with $ $ANDROID_NDK/ndk_build NDK_APPLICATION_MK=Application.mk but no luck Android NDK: Trying to define local module 'OpenThreads' in /home/rubn/data/OpenSceneGraph/build/src/OpenThreads/pthreads/Android.mk. Android NDK: But this module was already defined by /home/rubn/data/OpenSceneGraph/build/src/OpenThreads/pthreads/Android.mk. any idea why I am getting this err
Re: [osg-users] [build] problem compiling osg 3.0.0 for Android
Hi, Thanks a lot for your reply. I tried with the changes that you suggested and still didn't work using the graphic frontend for cmake. Using the console, everything fine. (I used r6, and got osg from trunk). Thanks again! Cheers, ruben -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41384#41384 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] problem compiling osg 3.0.0 for Android
Hi again, > Have fun with Osg and Android. Thanks, I'll do my best :P I've been checking out the android examples, both osgAndroidExampleGLES1 and osgAndroidExampleGLES2. No problem with osgAndroidExampleGLES1 :) But when it comes to do the same thing with osgAndroidExampleGLES2, I am not having the same luck. I get a bunch of errors when I use ndk-build. I am gonna assume that osg has been compiled using the OpenGL ES 1.1 API? Do I have to recompile or something? Thanks once again. Cheers, Rubén -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41427#41427 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] problem compiling osg 3.0.0 for Android
Cool, thanks! Good luck with your project! Cheers, Rubén -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41494#41494 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgDB::readNodeFile returning null in Android
Hi there, I am new to Android and fairly new to OSG. I recently managed to compile Android for OpenGL ES 2.0 on Ubuntu Linux 11.04 following http://forum.openscenegraph.org/viewtopic.php?t=8774. Everything worked fine and now I get "the OSG blue screen" on my device already. I am attempting to load a model, and therefore I use Code: osg::ref_ptr loadedModel = osgDB::readNodeFile(newModel.filename); as in the examples provided. but nothing comes up in the screen. Debugging I've found out that osgDB::readNodeFile is returning null all the time. I've tried with different paths. As I am new to Android I am not sure if applications have permissions to access files in shared memory. In the Android Developers' webpage I saw an entry that addresses this issue: http://developer.android.com/guide/topics/data/data-storage.html And so I tried using: /Android/data/osg.AndroidExample.osgViewer/files/models/cow.osg but still... the cow is being shy and doesn't want to appear on the screen :P I don't get any error messages or anything... I am just getting null in return from the osgDB::readNodeFile call. Any ideas of why this is happenning?? Thanks a lot in advance. Cheers, Rubén -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41495#41495 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgDB::readNodeFile returning null in Android
adb shell certainly the way to go... Thanks! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41547#41547 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] problem compiling osg 3.0.0 for Android
Hi, just a quick one... (I was not sure whether I should have posted it here or somewhere else. anyway...) I was testing the example application for OpenGL ES 2.0 and worked flawlessly using the Android 2.2 SDK. I tested on a Samsung Galaxy Tablet. I am testing now, using the Android 3.1 SDK for an ASUS Eee Pad Transformer. And I am out of luck... The result I get is the application starting (I can see the menu but the rest is black) and suddenly exiting a couple of seconds after. No error messages. Is this version of android (3.0 or 3.1) supported? Thank you! Cheers, Rubén -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41700#41700 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] manual camera view matrix update
Hi there,
This should be a quick one. I am using OSG compiled for Android OpenGL ES 2.0.
I have my app up and running on the device. My shaders for the object I am
displaying doesn't do anything special, but it works just fine.
My problem is, I need to update the camera matrix manually, this means: I
update the view matrix for every frame (or whenever I need to).
Well, my shader doesn't seem to care about my efforts. Nothing changes after I
attempt to change the matrix for the camera. For that purpose I use:
Code:
void OsgMainApp::setModelViewMatrix( osg::Matrixf osgMat ){
_viewer->getCamera()->setViewMatrix(osgMat);
}
that I use every frame I need to before doing:
Code:
_viewer->frame();
But camera shader uniforms doesn't seem to be updating.
What am I missing?? Any hint?
As you can guess I am not very experienced with osg.
Thanks a lot!
Cheers,
Rubén
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Re: [osg-users] manual camera view matrix update
Hi,
Thanks for your reply!
Well, I've tried with the "osg_" uniforms instead of the typical "gl_" uniforms.
Still not good. My model appears but the camera matrix uniform just doesn't
update by using
Code:
_viewer->getCamera()->setViewMatrix(osgMat);
The shader I am using is:
Code:
static const char gVertexShader[] =
"varying vec4 color;\n"
"const vec3 lightPos =vec3(100.0, 100.0, 100.0); \n"
"const vec4 cessnaColor =vec4(0.8, 0.0, 0.0, 1.0);\n"
"const vec4 lightAmbient =vec4(0.1, 0.1, 0.1, 1.0);\n"
"const vec4 lightDiffuse =vec4(0.4, 0.4, 0.4, 1.0);\n"
"const vec4 lightSpecular =vec4(0.8, 0.8, 0.8, 1.0);\n"
"uniform mat4 osg_ModelViewMatrix;
\n"
"uniform mat4 osg_ModelViewProjectionMatrix;
\n"
"uniform mat3 osg_NormalMatrix;
\n"
"void DirectionalLight(in vec3 normal, \n"
" in vec3 ecPos, \n"
" inout vec4 ambient, \n"
" inout vec4 diffuse, \n"
" inout vec4 specular) \n"
"{ \n"
" float nDotVP; \n"
" vec3 L = normalize(osg_ModelViewMatrix*vec4(lightPos, 0.0)).xyz; \n"
" nDotVP = max(0.0, dot(normal, L));\n"
" \n"
" if (nDotVP > 0.0) { \n"
" vec3 E = normalize(-ecPos); \n"
" vec3 R = normalize(reflect( L, normal )); \n"
" specular = pow(max(dot(R, E), 0.0), 16.0) * lightSpecular; \n"
" } \n"
" ambient = lightAmbient; \n"
" diffuse = lightDiffuse * nDotVP; \n"
"} \n"
"void main() { \n"
"vec4 ambiCol = vec4(0.0); \n"
"vec4 diffCol = vec4(0.0); \n"
"vec4 specCol = vec4(0.0); \n"
"gl_Position = osg_ModelViewProjectionMatrix * gl_Vertex; \n"
"vec3 normal = normalize(osg_NormalMatrix * gl_Normal);\n"
"vec4 ecPos= osg_ModelViewMatrix * gl_Vertex;\n"
"DirectionalLight(normal, ecPos.xyz, ambiCol, diffCol, specCol);\n"
"color = cessnaColor * (ambiCol + diffCol + specCol); \n"
"} \n";
static const char gFragmentShader[] =
"precision mediump float; \n"
"varying mediump vec4 color; \n"
"void main() { \n"
" gl_FragColor = color; \n"
"} \n";
No idea what's going wrong...
Cheers,
Rubén
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Re: [osg-users] manual camera view matrix update
It is weird... I've accessed the value with getUseModelViewAndProjectionUniforms() and it's set to true. :S Cheers, Rubén -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=42476#42476 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
