I tested my compiler(VisualStudio2010sp1), and found that c++11 is not
supported unfortunately.It seems that ... is the problem.Following is the
output info:
VOODOO=1:
1>InitializeBuildStatus:
1> ????????Debug\test111.unsuccessfulbuild?????? Touch ??????
1>ClCompile:
1> 1.cpp
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(39): error C2332: ??class??:
??????????
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(39): error C2993: ????:
????????????????<unnamed-tag>????????????
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(39): error C2143: ???????? :
??????,??(????...????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(40): error C2065: ??Args??:
??????????????
1> e:\wuzc02\????\20131011\test111\test111\1.cpp(40):
?????????????????? ???? ????????SeqBinder<F,N,<unnamed-tag>>????????
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(40): error C2143: ???????? :
??????,??(????...????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(40): error C2143: ???????? :
??????;??(????{????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(40): fatal error C1004:
????????????????
1>
1>??????????
VOODOO=0
1>InitializeBuildStatus:
1> ????????Debug\test111.unsuccessfulbuild?????? Touch ??????
1>ClCompile:
1> 1.cpp
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(79): error C2143: ???????? :
??????,??(????...????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(80): error C4430:
?????????????? - ?????? int??????: C++ ?????????? int
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(80): error C2143: ???????? :
??????,??(????&????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(90): error C2143: ???????? :
??????,??(????...????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(92): error C2065: ??Args??:
??????????????
1> e:\wuzc02\????\20131011\test111\test111\1.cpp(107):
?????????????????? ???? ????????LHC<__formal>????????
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(92): error C2143: ???????? :
??????)??(????...????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(100): error C2065: ??Args??:
??????????????
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(100): error C2143: ???????? :
??????,??(????...????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(100): error C2059:
????????:??)??
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(102): error C2143: ???????? :
??????;??(????{????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(104): error C2143: ???????? :
??????;??(????{????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(106): error C2143: ???????? :
??????;??(????}????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(107): error C2143: ???????? :
??????;??(????}????????)
1>e:\wuzc02\????\20131011\test111\test111\1.cpp(107): fatal error C1004:
????????????????
1>
1>??????????
------------------
Failure is the mother of success.
Wu Zhicheng
------------------ Original ------------------
From: "Solkar Graphics";<sol...@freenet.de>;
Date: Sun, Jul 6, 2014 09:58 PM
To: "osg-users"<osg-users@lists.openscenegraph.org>;
Subject: Re: [osg-users] how to get the real world coordinates(x, y,z) in
shader
Very well.
Some preliminary remarks:
The sphere
Code:
geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(osg::Vec3d(0,0,0),
6500000.0)));
has a radius of 6.5E6, whereas your orthographic frustum
Code:
node->setProjectionMatrix(osg::Matrix::ortho2D(0, 1600, 0, 900));
is 3 magnitudes smaller along each axis.
That would never fit around the whole sphere, but apparently, so see the sphere
nevertheless That gives rise to the notion of some "mangling" being done behind
the scenes.
Again the sphere
Code:
geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(osg::Vec3d(0,0,0),
6500000.0)));
It's at origin. as initially is world respective to cam coords
Code:
node->setViewMatrix(osg::Matrix::identity());
. cam would sit inside the sphere, if no mangling was done.
osgViewer::Viewer::run()
http://trac.openscenegraph.org/projects/osg/browser/OpenSceneGraph/trunk/include/osgViewer/Viewer
> /** Execute a main frame loop.
> * Equivalent to while (!viewer.done()) viewer.frame();
> * Also calls realize() if the viewer is not already realized,
> * and installs trackball manipulator if one is not already assigned.
> */
>
and it's obvious that there is a manipulator installed, because the viewer is
responsive to mouse events.
If you log the view matrix before the viewer.run() you get the identity matrix
you set.
But If log dump the view matrix from within run(), e.g in your
Code:
UpdateUniformsCallback::operator()
you get
1 0 0 0
0 0 1 0
0 -1 0 -4.47409e+07
0 0 0 1
thus world has been tilted by [pi/2,0,0] and shifted ~4.5E7 to the back.
That's it about the maths.
Now about the uniforms -
you have to do
Code:
pref->getState()->setUseModelViewAndProjectionUniforms(true);
pref->getState()->setUseVertexAttributeAliasing(false); // depands on the
shader code
for all valid
Code:
osgViewer::ViewerBase::Contexts:.value_type pref;
after the view has been realized once but before the run.
I will give you code for that after you'll have figured out your compiler's C++
support.
Cheers,
Solkar
Code:
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=60183#60183
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