FGFS-4.1/OpenSceneGraph
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Fixed handling of viewer's Camera

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.2@14525 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield
2014-11-24 14:10:40 +00:00
parent ce82cfd25f
commit e3ba4c82e4
1 changed files with 7 additions and 7 deletions
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14
examples/osgsimplegl3/osgsimplegl3.cpp
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@@ -20,7 +20,7 @@
void configureShaders( osg::StateSet* stateSet )
{
const std::string vertexSource =
const std::string vertexSource =
"#version 140 \n"
" \n"
"uniform mat4 osg_ModelViewProjectionMatrix; \n"
@@ -41,7 +41,7 @@ void configureShaders( osg::StateSet* stateSet )
"} \n";
osg::Shader* vShader = new osg::Shader( osg::Shader::VERTEX, vertexSource );
const std::string fragmentSource =
const std::string fragmentSource =
"#version 140 \n"
" \n"
"in vec4 color; \n"
@@ -90,16 +90,16 @@ int main( int argc, char** argv )
return( 1 );
}
osgViewer::Viewer viewer;
// Create a Camera that uses the above OpenGL context.
osg::Camera* cam = new osg::Camera;
osg::Camera* cam = viewer.getCamera();
cam->setGraphicsContext( gc.get() );
// Must set perspective projection for fovy and aspect.
cam->setProjectionMatrix( osg::Matrix::perspective( 30., (double)width/(double)height, 1., 100. ) );
// Unlike OpenGL, OSG viewport does *not* default to window dimensions.
cam->setViewport( new osg::Viewport( 0, 0, width, height ) );
osgViewer::Viewer viewer;
viewer.setCamera( cam );
viewer.setSceneData( root );
// for non GL3/GL4 and non GLES2 platforms we need enable the osg_ uniforms that the shaders will use,
@@ -118,7 +118,7 @@ OSG currently support OpenGL 3.x on Windows. This comment block describes the
necessary configuration steps.
Get the draft gl3.h header file from OpenGL.org and put it in a folder called
<EFBFBD>GL3<EFBFBD> somewhere on your hard drive. OSG includes this header as <GL3/gl3.h>. Get
GL3 somewhere on your hard drive. OSG includes this header as <GL3/gl3.h>. Get
gl3.h from here:
http://www.opengl.org/registry/
@@ -128,7 +128,7 @@ several changes.
* Add the path to <GL3/gl3.h> to the CMake compiler flags, CMAKE_CXX_FLAGS and
CMAKE_CXX_FLAGS_DEBUG (for release and debug builds; others if you use other
build configurations). The text to add should look something like this:
/I <EFBFBD>C:\GLHeader<EFBFBD>
/I C:\GLHeader
The folder GLHeader should contain a subfolder GL3, which in turn contains
gl3.h.