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Add world viewer position in cartesian and geodesic coordinate as shader uniforms

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This commit is contained in:
Frederic Bouvier 2012-05-19 23:50:35 +02:00
parent a5dff11f13
commit 3e7b8e57b6
3 changed files with 20 additions and 3 deletions
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7
src/Viewer/CameraGroup.cxx
View file

@ -274,8 +274,13 @@ int CameraInfo::getMainSlaveIndex() const
void CameraInfo::setMatrices(osg::Camera* c)
{
view->set( c->getViewMatrix() );
viewInverse->set( osg::Matrix::inverse( c->getViewMatrix() ) );
osg::Matrixd vi = c->getInverseViewMatrix();
viewInverse->set( vi );
projInverse->set( osg::Matrix::inverse( c->getProjectionMatrix() ) );
osg::Vec4d pos = osg::Vec4d(0., 0., 0., 1.) * vi;
worldPosCart->set( osg::Vec3f( pos.x(), pos.y(), pos.z() ) );
SGGeod pos2 = SGGeod::fromCart( SGVec3d( pos.x(), pos.y(), pos.z() ) );
worldPosGeod->set( osg::Vec3f( pos2.getLongitudeRad(), pos2.getLatitudeRad(), pos2.getElevationM() ) );
}
void CameraGroup::update(const osg::Vec3d& position,

4
src/Viewer/CameraGroup.hxx
View file

@ -94,6 +94,8 @@ struct CameraInfo : public osg::Referenced
bufferSize( new osg::Uniform("fg_BufferSize", osg::Vec2f() ) ),
projInverse( new osg::Uniform( "fg_ProjectionMatrixInverse", osg::Matrixf() ) ),
viewInverse( new osg::Uniform( "fg_ViewMatrixInverse",osg::Matrixf() ) ),
worldPosCart( new osg::Uniform( "fg_CameraPositionCart", osg::Vec3f() ) ),
worldPosGeod( new osg::Uniform( "fg_CameraPositionGeod", osg::Vec3f() ) ),
view( new osg::Uniform( "fg_ViewMatrix",osg::Matrixf() ) ),
du( new osg::Uniform( "fg_du",osg::Vec4() ) ),
dv( new osg::Uniform( "fg_dv",osg::Vec4() ) )
@ -152,6 +154,8 @@ struct CameraInfo : public osg::Referenced
osg::ref_ptr<osg::Uniform> projInverse;
osg::ref_ptr<osg::Uniform> viewInverse;
osg::ref_ptr<osg::Uniform> view;
osg::ref_ptr<osg::Uniform> worldPosCart;
osg::ref_ptr<osg::Uniform> worldPosGeod;
osg::ref_ptr<osg::Uniform> du;
osg::ref_ptr<osg::Uniform> dv;

12
src/Viewer/renderer.cxx
View file

@ -1091,10 +1091,13 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( CameraInfo* info, osg::Gra
quadCam1->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
quadCam1->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
ss = quadCam1->getOrCreateStateSet();
ss->addUniform( _ambientFactor );
ss->addUniform( info->projInverse );
ss->addUniform( info->viewInverse );
ss->addUniform( info->view );
ss->addUniform( info->bufferSize );
ss->addUniform( info->worldPosCart );
ss->addUniform( info->worldPosGeod );
ss->addUniform( _ambientFactor );
ss->addUniform( _sunDiffuse );
ss->addUniform( _sunSpecular );
ss->addUniform( _sunDirection );
@ -1159,10 +1162,13 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( CameraInfo* info, osg::Gra
quadCam2->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
quadCam2->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
ss = quadCam2->getOrCreateStateSet();
ss->addUniform( _ambientFactor );
ss->addUniform( info->projInverse );
ss->addUniform( info->viewInverse );
ss->addUniform( info->view );
ss->addUniform( info->bufferSize );
ss->addUniform( info->worldPosCart );
ss->addUniform( info->worldPosGeod );
ss->addUniform( _ambientFactor );
ss->addUniform( _sunDiffuse );
ss->addUniform( _sunSpecular );
ss->addUniform( _sunDirection );
@ -1262,6 +1268,8 @@ FGRenderer::buildDeferredFullscreenCamera( flightgear::CameraInfo* info, const F
ss->addUniform( info->viewInverse );
ss->addUniform( info->view );
ss->addUniform( info->bufferSize );
ss->addUniform( info->worldPosCart );
ss->addUniform( info->worldPosGeod );
ss->addUniform( _ambientFactor );
ss->addUniform( _sunDiffuse );
ss->addUniform( _sunSpecular );