Re: [osg-users] Segfault when using addChild on Group object
Hmm, I am using this CMake file, so I am not using a -I flag manually, and I
don't see one in the generated Makefile.
I checked the ldd output and they don't see anything inconsistent with itself.
Code:
linux-vdso.so.1 => (0x7ffe606c9000)
libosg.so.99 => /usr/lib/libosg.so.99 (0x7fd9b71be000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(0x7fd9b6eba000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
(0x7fd9b6ca4000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x7fd9b68df000)
libOpenThreads.so.14 => /usr/lib/libOpenThreads.so.14
(0x7fd9b66d7000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x7fd9b64cf000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x7fd9b62cb000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
(0x7fd9b6065000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x7fd9b5d5f000)
/lib64/ld-linux-x86-64.so.2 (0x7fd9b768e000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x7fd9b5b41000)
libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0
(0x7fd9b591a000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6
(0x7fd9b5708000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1
(0x7fd9b5505000)
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3
(0x7fd9b52ff000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1
(0x7fd9b50fd000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6
(0x7fd9b4dc8000)
libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0
(0x7fd9b4bb1000)
libxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0
(0x7fd9b49ac000)
libxcb-dri3.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0
(0x7fd9b47a9000)
libxcb-present.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-present.so.0
(0x7fd9b45a6000)
libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1
(0x7fd9b43a)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1
(0x7fd9b4181000)
libxshmfence.so.1 => /usr/lib/x86_64-linux-gnu/libxshmfence.so.1
(0x7fd9b3f7f000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1
(0x7fd9b3d79000)
libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2
(0x7fd9b3b6c000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6
(0x7fd9b3968000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6
(0x7fd9b3762000)
I'm not so strong on UNIX build tools so sorry if I'm missing something obvious.
Here is the CMakeLists.txt
Code:
cmake_minimum_required( VERSION 2.6 )
project( proj )
find_package( OpenThreads )
find_package( osg )
find_package( osgDB )
find_package( osgUtil )
find_package( osgViewer )
macro( config_project PROJNAME LIBNAME )
include_directories( ${${LIBNAME}_INCLUDE_DIR} )
target_link_libraries( ${PROJNAME} ${${LIBNAME}_LIBRARY} )
endmacro()
add_executable( proj main.cpp )
config_project( proj OPENTHREADS )
config_project( proj OSG )
config_project( proj OSGDB )
config_project( proj OSGUTIL )
config_project( proj OSGVIEWER )
Thanks,
Andre
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http://forum.openscenegraph.org/viewtopic.php?p=66949#66949
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[osg-users] Segfault when using addChild on Group object
Hi,
I'm trying to use OpenSceneGraph on my machine running.
When I run the following code, I always get a segfault on the line with
addChild:
Code:
#include
#include
#include
#include
int main(int argc, char** argv) {
osg::ref_ptr a = new osg::Node();
osg::ref_ptr b = new osg::Group();
b->addChild(a.get());
osgViewer::Viewer viewer;
viewer.setSceneData(b);
viewer.run();
return 0;
}
Any ideas why this would happen? I'm on Ubuntu 14.04.4, and using the
libopenscenegraph-dev package from apt-get.
Thanks,
Andre
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http://forum.openscenegraph.org/viewtopic.php?p=66931#66931
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Re: [osg-users] Changing the color of a model
Ah, that seems to have done the trick for what I'm doing at the moment, thanks! -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=65334#65334 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Changing the color of a model
Hi OpenSceneGraph forum! I'm very new to OSG, and while I'm very familiar with programming, and somewhat familiar with 3D graphics, I am now devoting actual time working in a lab to properly learn C++, and OSG as well. My issue is as follows： I am loading an existing model as a Node, and I want to be able to change the color of the model in real time. How should I go about doing this? I know how attach an update callback to the Node, but it's the color that I can't seem to change. I am able to set the diffuse color on a primitive object using a material like so: Code: osg::ref_ptr mat = new osg::Material; mat->setDiffuse (osg::Material::FRONT_AND_BACK, osg::Vec4(0.8, 0.1, 0.4, 1.0)); myNode->getOrCreateStateSet()->setAttributeAndModes(mat, osg::StateAttribute::ON); but this doesn't seem to work on the model. I found that if I changed the model's .osg file to not define material colors on particular components of the model, then this color I defined for the model would affect those parts. However I feel there should be a better way to do this, as I will probably end up using models that actually need these colors within their respective .osg files. I know I can probably do this with a shader, and if that's necessary then fine, but if there's an easier way then that would be great. So essentially my question is: What is the easiest way to change the overall diffuse color of an object? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=65321#65321 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
