Hello everyone,
I've discovered a problem with the Texture2D serializer that occurs when the
associated image is an instance of an osg::ImageSequence.
I think this happens because the ImageSerializer::read method calls the
InputStream::readImage without ensuring that the object is actually an
osg::Image, producing a read error.
Can someone evaluate my observations?
I use OSG-3.0.1, but in 3.1.2 ChangeLog file I have not found anything
about it.
This is the osgviewer output:
[martino@slack] osg_image_sequence $ osgviewer graph.osgt
InputStream::readObject(): Unsupported wrapper class
osg::StateAttributeCallback
Warning: Could not find plugin to read objects from file "".
AsciiInputIterator::readProperty(): Unmatched property }, expecting Value
I attach two files:
write_graph.cpp produces graph.osgt
graph.osgt contains the ImageSequence that osgDB::readNodeFile cannot
read
Thanks you all,
Martino
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/Texture2D>
#include <osg/ImageSequence>
#include <osgDB/WriteFile>
int
main(int argc, char** argv)
{
osg::ref_ptr<osg::Geode> root = NULL ;
osg::Geometry* geometry = NULL ;
osg::ImageSequence* image_sequence = NULL ;
osg::Texture2D* texture = NULL ;
geometry = osg::createTexturedQuadGeometry( osg::Vec3(-1, 0, -1),
osg::Vec3( 2, 0, 0),
osg::Vec3( 0, 0, 2)
) ;
root = new osg::Geode() ;
root->addDrawable( geometry ) ;
image_sequence = new osg::ImageSequence() ;
for(int i=1; i<argc; i++) {
image_sequence->addImageFile( argv[i] ) ;
}
texture = new osg::Texture2D( image_sequence ) ;
root->getOrCreateStateSet()->setTextureAttributeAndModes( 0,
texture,
osg::StateAttribute::ON
) ;
osgDB::writeNodeFile( *root, "graph.osgt" ) ;
return 0 ;
}
graph.osgt
Description: Binary data
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