i have a mesh and want to project several photo on the mesh . code is here:
osg::Switch *layer = new osg::Switch;
osg::Geode* leaf = 0;
if (!hasTexture){
leaf = createLeaf(points, numOfVert, tris,header.np);
layer->addChild(leaf);
}else{
osg::Group *group = new osg::Group;
for (unsigned int gr = 0; gr < header.ngr; gr++){
/*for every group , load the different texture*/
osg::Texture2D* texture = 0L;
osg::ref_ptr<osg::Image> image;
if(osgDB::isAbsolutePath(groups[gr].texmap)){
image = osgDB::readImageFile(std::string(groups[gr].texmap));
}else{
std::string absoluteFile = osgDB::getFilePath(fileName)
+ std::string("/")
+ std::string(groups[gr].texmap);
image = osgDB::readImageFile(absoluteFile);
}
texture = new osg::Texture2D;
texture->setImage( image.get() );
if (texture->getImage()!=0L){
group->getOrCreateStateSet()->setTextureAttributeAndModes(gr,texture );
//set texture units
group->getOrCreateStateSet()->setTextureAttribute(gr, new
osg::TexEnv(osg::TexEnv::DECAL));
}
/*create group leaf*/
leaf = createLeaf(points, tris_t, groups[gr].poly_begin, groups[gr].poly_end,
gr);
group->addChild(leaf);
}
layer->addChild(group);
}
the problem is that just one texture unit works .
in case :
for (unsigned int gr = 0; gr < header.ngr; gr++){ unit 0 works
for (unsigned int gr = 1; gr < 2; gr++){ unit 1
works
then , how can i show the whole mesh with texture?
thanks in advance
Shawl_______________________________________________
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