Hi Robert
On 21.08.2017 17:43, Robert Osfield wrote:
What GL version is osgEarth now depending upon?
A quick grep through the codebase shows shaders depending on GLSL up to 430.
From an end users perspectives lack of compatibility profile is a
constraint, if it weren't you wouldn't have had any problems. From
what you describe it may well be a temporary constraint.
I can't speak for the mesa developers, though search a bit one can read
various statements here and there, including "A long time ago, a
decision was made for Mesa not to increase the advertised compatibility
profile version."
(https://bugs.freedesktop.org/show_bug.cgi?id=96449#c5), so does not
sound too temporary.
Are you building the OSG with defaults? Or are you building the OSG
for just GL3?
%cmake -DBUILD_OSG_EXAMPLES=ON -DBUILD_DOCUMENTATION=ON
-DOSG_GL1_AVAILABLE=ON -DOSG_GL2_AVAILABLE=ON -DOPENGL_PROFILE=GLCORE
-DOPENGL_HEADER1="#include <GL/gl.h>"
What viewer are using with osgEarth? osgEarth itself is typically
used as NodeKit with end user application creating their own viewer
and with it graphics contexts. This means even if osgEarth's own
example programs changed the way they create graphics context you'd
end up with issues.
Running with osgearth_viewer, I get two calls to
osgViewer::GraphicsWindowX11::init. The first one where, I assume, it
tries to determine the capabilities of hardware/driver in use, and this
calls Traits without a DisplaySettings instance:
#0 osgViewer::GraphicsWindowX11::init (this=this@entry=0x1004ad330)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/GraphicsWindowX11.cpp:915
#1 0x00007f3e23ae4b50 in
osgViewer::GraphicsWindowX11::GraphicsWindowX11 (traits=0x1003760d0,
this=<optimized out>)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/include/osgViewer/api/X11/GraphicsWindowX11:56
#2 X11WindowingSystemInterface::createGraphicsContext (this=<optimized
out>, traits=0x1003760d0)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/GraphicsWindowX11.cpp:2269
#3 0x00007f3e241e81b7 in osg::GraphicsContext::createGraphicsContext
(traits=traits@entry=0x1003760d0)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osg/GraphicsContext.cpp:128
#4 0x00007f3e2350c256 in MyGraphicsContext::MyGraphicsContext
(this=<synthetic pointer>)
at
/usr/src/debug/osgearth-2.9-0.2.git43d4ba5.fc27.x86_64/src/osgEarth/Capabilities.cpp:76
#5 osgEarth::Capabilities::Capabilities (this=0x100390f30)
at
/usr/src/debug/osgearth-2.9-0.2.git43d4ba5.fc27.x86_64/src/osgEarth/Capabilities.cpp:162
#6 0x00007f3e236897a5 in osgEarth::Registry::initCapabilities
(this=0x1002a7af0)
at
/usr/src/debug/osgearth-2.9-0.2.git43d4ba5.fc27.x86_64/src/osgEarth/Registry.cpp:484
#7 0x00007f3e23689829 in osgEarth::Registry::getCapabilities
(this=0x1002a7af0)
at
/usr/src/debug/osgearth-2.9-0.2.git43d4ba5.fc27.x86_64/src/osgEarth/Registry.cpp:468
#8 0x00007f3dfa209486 in osgEarth::Registry::capabilities ()
at
/usr/src/debug/osgearth-2.9-0.2.git43d4ba5.fc27.x86_64/src/osgEarth/Registry:149
#9
osgEarth::Drivers::MPTerrainEngine::MPTerrainEngineNode::MPTerrainEngineNode
(this=0x100a1ac60)
at
/usr/src/debug/osgearth-2.9-0.2.git43d4ba5.fc27.x86_64/src/osgEarthDrivers/engine_mp/MPTerrainEngineNode.cpp:202
[...]
Then, a second time here:
#0 osgViewer::GraphicsWindowX11::init (this=this@entry=0x100676840)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/GraphicsWindowX11.cpp:915
#1 0x00007f3e23ae4b50 in
osgViewer::GraphicsWindowX11::GraphicsWindowX11 (traits=0x10052c100,
this=<optimized out>)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/include/osgViewer/api/X11/GraphicsWindowX11:56
#2 X11WindowingSystemInterface::createGraphicsContext (this=<optimized
out>, traits=0x10052c100)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/GraphicsWindowX11.cpp:2269
#3 0x00007f3e241e81b7 in osg::GraphicsContext::createGraphicsContext
(traits=traits@entry=0x10052c100)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osg/GraphicsContext.cpp:128
#4 0x00007f3e23a7ab62 in osgViewer::SingleWindow::configure
(this=0x100a2a370, view=...)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/config/SingleWindow.cpp:72
#5 0x00007f3e23a7a80a in osgViewer::SingleScreen::configure
(this=<optimized out>, view=...)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/config/SingleScreen.cpp:29
#6 0x00007f3e23a75207 in osgViewer::AcrossAllScreens::configure
(this=<optimized out>, view=...)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/config/AcrossAllScreens.cpp:48
#7 0x00007f3e23ab79c2 in osgViewer::View::apply (this=0x7fffffffdb00,
config=0x1002a3770)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/View.cpp:456
#8 0x00007f3e23ab7b00 in osgViewer::View::setUpViewAcrossAllScreens
(this=<optimized out>)
at
/usr/src/debug/OpenSceneGraph-3.5.7-0.2.gitbfbaeca.fc27.x86_64/src/osgViewer/View.cpp:463
[...]
using ViewAcrossAllScreens as you anticipated and hence the default
DisplaySettings. Since by default a "1.0" context is created, the result is:
FRAGMENT glCompileShader "main(fragment)" FAILED
FRAGMENT Shader "main(fragment)" infolog:
0:1(10): error: GLSL 3.30 is not supported. Supported versions are:
1.10, 1.20, 1.30, 1.00 ES, 3.00 ES, 3.10 ES, and 3.20 ES
etc.
If I add
osg::DisplaySettings::instance()->setGLContextVersion( "4.0" );
osg::DisplaySettings::instance()->setGLContextProfileMask( 0x1 );
at the beginning of a tweaked osgearth_viewer.cpp@main, things work
(though possibly osgEarth::Capabilities::Capabilities will have
incorrectly determined some things since a "1.0" context was created
there). The same effect can indeed be achieved by using the environment
variables you mention.
If I use osgearth_qt_simple, the GL context created by Qt is used, which
I can set up to use the desired version and profile mask, at which point
things will also work with that viewer.
Best
Sandro
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
