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From Bob Kuehne, "1) add simplifier command "--simplifier .5" to reduce complexity

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2) complementarily add a "--overallNormal" to replace
per-vert/per-facet normals with an overall. simplifier doesn't work
  in certain cases without less complex normals. this gets that done.
3) add env var output with full verbose output so people realize it's
active when the app is run - i see this all the time in training where
people run osgconv, with unintended data transformations due to
osgUtil:;Optimzer, for example"
This commit is contained in:
Robert Osfield
2008-04-11 10:16:38 +00:00
parent 22edadcdf3
commit 66ed3a919a
1 changed files with 87 additions and 1 deletions
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88
applications/osgconv/osgconv.cpp
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@@ -5,6 +5,7 @@
#include <osg/Group>
#include <osg/Notify>
#include <osg/Vec3>
#include <osg/ProxyNode>
#include <osg/Geometry>
#include <osg/Texture2D>
#include <osg/Texture3D>
@@ -18,6 +19,7 @@
#include <osgDB/ReaderWriter>
#include <osgUtil/Optimizer>
#include <osgUtil/Simplifier>
#include <osgUtil/SmoothingVisitor>
#include <osgViewer/GraphicsWindow>
@@ -74,6 +76,37 @@ class MyGraphicsContext {
osg::ref_ptr<osg::GraphicsContext> _gc;
};
class DefaultNormalsGeometryVisitor
: public osg::NodeVisitor
{
public:
DefaultNormalsGeometryVisitor()
: osg::NodeVisitor( osg::NodeVisitor::TRAVERSE_ALL_CHILDREN ) {
}
virtual void apply( osg::Geode & geode )
{
for( unsigned int ii = 0; ii < geode.getNumDrawables(); ++ii )
{
osg::ref_ptr< osg::Geometry > geometry = dynamic_cast< osg::Geometry * >( geode.getDrawable( ii ) );
if( geometry.valid() )
{
osg::ref_ptr< osg::Vec3Array > newnormals = new osg::Vec3Array;
newnormals->push_back( osg::Z_AXIS );
geometry->setNormalArray( newnormals.get() );
geometry->setNormalBinding( osg::Geometry::BIND_OVERALL );
}
}
}
virtual void apply( osg::Node & node )
{
traverse( node );
}
};
class CompressTexturesVisitor : public osg::NodeVisitor
{
public:
@@ -369,10 +402,21 @@ static void usage( const char *prog, const char *msg )
osg::notify(osg::NOTICE)<< std::endl;
osg::notify(osg::NOTICE) << msg << std::endl;
}
// basic usage
osg::notify(osg::NOTICE)<< std::endl;
osg::notify(osg::NOTICE)<<"usage:"<< std::endl;
osg::notify(osg::NOTICE)<<" " << prog << " [options] infile1 [infile2 ...] outfile"<< std::endl;
osg::notify(osg::NOTICE)<< std::endl;
// print env options - especially since optimizer is always _on_
osg::notify(osg::NOTICE)<<"environment:" << std::endl;
osg::ApplicationUsage::UsageMap um = osg::ApplicationUsage::instance()->getEnvironmentalVariables();
std::string envstring;
osg::ApplicationUsage::instance()->getFormattedString( envstring, um );
osg::notify(osg::NOTICE)<<envstring << std::endl;
// print tool options
osg::notify(osg::NOTICE)<<"options:"<< std::endl;
osg::notify(osg::NOTICE)<<" -O option - ReaderWriter option"<< std::endl;
osg::notify(osg::NOTICE)<< std::endl;
@@ -430,6 +474,10 @@ static void usage( const char *prog, const char *msg )
" where X, Y, and Z represent the coordinates of the\n"
" absolute position in world space\n"
<< std::endl;
osg::notify(osg::NOTICE)<<" --simplify n - Run simplifier on prior to output. Argument must be a" << std::endl
<<" normalized value for the resultant percentage reduction." << std::endl
<<" Example: --simplify .5 will produce an 50 reduced model." << std::endl
<< std::endl;
osg::notify(osg::NOTICE)<<" -s scale - Scale size of model. Scale argument must be the \n"
" following :\n"
"\n"
@@ -442,6 +490,7 @@ static void usage( const char *prog, const char *msg )
" all geometry"<< std::endl;
osg::notify(osg::NOTICE)<<" --addMissingColors - Adding a white color value to all geometry that don't have\n"
" their own color values (--addMissingColours also accepted)."<< std::endl;
osg::notify(osg::NOTICE)<<" --overallNormal - Replace normals with a single overall normal."<< std::endl;
}
@@ -547,6 +596,23 @@ int main( int argc, char **argv )
do_convert = true;
}
float simplifyPercent = 1.0;
bool do_simplify = false;
while ( arguments.read( "--simplify",str ) )
{
float nsimp = 1.0;
if( sscanf( str.c_str(), "%f",
&nsimp ) != 1 )
{
usage( argv[0], "Scale argument format incorrect." );
return 1;
}
std::cout << str << " " << nsimp << std::endl;
simplifyPercent = nsimp;
osg::notify( osg::INFO ) << "Simplifying with percentage: " << simplifyPercent << std::endl;
do_simplify = true;
}
while (arguments.read("-t",str))
{
osg::Vec3 trans(0,0,0);
@@ -586,6 +652,9 @@ int main( int argc, char **argv )
bool addMissingColours = false;
while(arguments.read("--addMissingColours") || arguments.read("--addMissingColors")) { addMissingColours = true; }
bool do_overallNormal = false;
while(arguments.read("--overallNormal") || arguments.read("--overallNormal")) { do_overallNormal = true; }
// any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized();
@@ -671,7 +740,24 @@ int main( int argc, char **argv )
std::cout<<"Warning: compressing texture only supported when outputing to .ive"<<std::endl;
}
}
// scrub normals
if ( do_overallNormal )
{
DefaultNormalsGeometryVisitor dngv;
root->accept( dngv );
}
// apply any user-specified simplification
if ( do_simplify )
{
osgUtil::Simplifier simple;
simple.setSmoothing( smooth );
osg::notify( osg::ALWAYS ) << " smoothing: " << smooth << std::endl;
simple.setSampleRatio( simplifyPercent );
root->accept( simple );
}
osgDB::ReaderWriter::WriteResult result = osgDB::Registry::instance()->writeNode(*root,fileNameOut,osgDB::Registry::instance()->getOptions());
if (result.success())
{