FGFS-4.1/OpenSceneGraph
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Added support for handling transparent geometries and textures.

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This commit is contained in:
Robert Osfield 2005-03-18 11:21:01 +00:00
parent 0452f1eac2
commit 7951be9573
1 changed files with 21 additions and 0 deletions
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21
src/osgPlugins/obj/ReaderWriterOBJ.cpp
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@ -89,6 +89,8 @@ void ReaderWriterOBJ::buildMaterialToStateSetMap(obj::Model& model, MaterialToSt
osg::StateSet* stateset = new osg::StateSet;
bool isTransparent = false;
// handle material colors
{
osg::Material* osg_material = new osg::Material;
@ -98,6 +100,14 @@ void ReaderWriterOBJ::buildMaterialToStateSetMap(obj::Model& model, MaterialToSt
osg_material->setDiffuse(osg::Material::FRONT_AND_BACK,material.diffuse);
osg_material->setSpecular(osg::Material::FRONT_AND_BACK,material.specular);
osg_material->setShininess(osg::Material::FRONT_AND_BACK,(material.shininess/1000.0f)*128.0f ); // note OBJ shiniess is 0..1000.
if (material.ambient[3]!=1.0 ||
material.diffuse[3]!=1.0 ||
material.specular[3]!=1.0)
{
osg::notify(osg::INFO)<<"Found transparent material"<<std::endl;
isTransparent = true;
}
}
// handle textures
@ -127,9 +137,20 @@ void ReaderWriterOBJ::buildMaterialToStateSetMap(obj::Model& model, MaterialToSt
texgen->setMode(osg::TexGen::SPHERE_MAP);
stateset->setTextureAttributeAndModes(0,texgen,osg::StateAttribute::ON);
}
if (!isTransparent && image->isImageTranslucent())
{
osg::notify(osg::INFO)<<"Found transparent image"<<std::endl;
isTransparent = true;
}
}
}
if (isTransparent)
{
stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
materialToStateSetMap[material.name] = stateset;