geode.cpp

最新osg包

    unsigned int vindex=*(drawElements->begin());
    for(osg::DrawElementsUShort::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-2; ++primItr)
    {    
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+2);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputQuadStripDelsUShort(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUShort* drawElements, ostream& fout)
{
    const unsigned int localPrimLength=4;
    for(osg::DrawElementsUShort::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-3; primItr+=2)
    {
        unsigned int vindex=*primItr;
        
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+3);
        unsigned int vindexp3=*(primItr+2);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp3, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputQuadsDelsUShort(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUShort* drawElements, ostream& fout)
{
    const unsigned int localPrimLength=4;
    for(osg::DrawElementsUShort::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-3; primItr+=4)
    {
        unsigned int vindex=*primItr;
        
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+2);
        unsigned int vindexp3=*(primItr+3);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp3, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputPolygonDelsUShort(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUShort* drawElements, ostream& fout)
{
    unsigned int primLength =drawElements->size();
    unsigned int primCount = 0;

    OutputSurfHead(iCurrentMaterial,surfaceFlags,primLength, fout);
    for(osg::DrawElementsUShort::const_iterator primItr=drawElements->begin(); primItr<drawElements->end(); ++primCount,++primItr)
    {
        unsigned int vindex=*primItr;
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
// DrawElements .... UInt
void Geode::OutputTriangleDelsUInt(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUInt* drawElements, ostream& fout)
{
    unsigned int primLength =3;
    
    unsigned int primCount = 0;
    for(osg::DrawElementsUInt::const_iterator primItr=drawElements->begin(); primItr<drawElements->end(); ++primCount,++primItr)
    {
        
        if ((primCount%primLength) == 0)
        {
            OutputSurfHead(iCurrentMaterial,surfaceFlags,primLength, fout);
        }
        
        unsigned int vindex=*primItr;
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputTriangleStripDelsUInt(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUInt* drawElements, ostream& fout)
{
    unsigned int localPrimLength = 3;
    bool evenodd=true;
    for(osg::DrawElementsUInt::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-2; ++primItr)
    {
        
        unsigned int vindex=*primItr;
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+2);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        if (evenodd) {
            OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
            OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        } else {
            OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
            OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        }
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
        evenodd=!evenodd;
    }
}
void Geode::OutputTriangleFanDelsUInt(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUInt* drawElements, ostream& fout)
{
    const unsigned int localPrimLength = 3;
    unsigned int vindex=*(drawElements->begin());
    for(osg::DrawElementsUInt::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-2; ++primItr)
    {    
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+2);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputQuadStripDelsUInt(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUInt* drawElements, ostream& fout)
{
    const unsigned int localPrimLength = 4;
    for(osg::DrawElementsUInt::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-3; primItr+=2)
    {
        unsigned int vindex=*primItr;
        
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+3);
        unsigned int vindexp3=*(primItr+2);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp3, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputQuadsDelsUInt(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUInt* drawElements, ostream& fout)
{
    const unsigned int localPrimLength=4;
    for(osg::DrawElementsUInt::const_iterator primItr=drawElements->begin(); primItr<drawElements->end()-3; primItr+=4)
    {
        unsigned int vindex=*primItr;
        
        unsigned int vindexp1=*(primItr+1);
        unsigned int vindexp2=*(primItr+2);
        unsigned int vindexp3=*(primItr+3);
        OutputSurfHead(iCurrentMaterial,surfaceFlags,localPrimLength, fout);
        
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp1, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp2, pVertexIndices, pTexCoords, pTexIndices, fout);
        OutputVertex(vindexp3, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}
void Geode::OutputPolygonDelsUInt(const int iCurrentMaterial, const unsigned int surfaceFlags,
        const osg::IndexArray *pVertexIndices, const osg::Vec2 *pTexCoords, const osg::IndexArray *pTexIndices,
        const osg::DrawElementsUInt* drawElements, ostream& fout)
{
    unsigned int primLength =drawElements->size();
    unsigned int primCount = 0;

    OutputSurfHead(iCurrentMaterial,surfaceFlags,primLength, fout);
    for(osg::DrawElementsUInt::const_iterator primItr=drawElements->begin(); primItr<drawElements->end(); ++primCount,++primItr)
    {
        unsigned int vindex=*primItr;
        OutputVertex(vindex, pVertexIndices, pTexCoords, pTexIndices, fout);
    }
}


const int Geode::ProcessMaterial(ostream& fout, const unsigned int igeode)
{
    // outputs materials from one geode
    // extended for multiple geode models, GWM 2003.
    // called before all the geometry as ac3d expects all materials in the header.
    // returns number of materials made
    unsigned int i;
    const unsigned int iNumDrawables = getNumDrawables();
    const osg::StateSet::RefAttributePair* pRAP;
    unsigned int iNumMaterials=0;
    // Let ac3d optimise the file
    // whiz round and get a list of materials
    // these may be duplicates of materials on other Geode/geometry sets.

    // Scan for materials
    for (i = 0; i < iNumDrawables; i++)
    {
        const osg::Drawable* Drawable = getDrawable(i);
        if (Drawable) {
            const osg::StateSet* theState = Drawable->getStateSet();
            if (theState) {
                pRAP = theState->getAttributePair(osg::StateAttribute::MATERIAL);
                if (NULL != pRAP)
                {
                    const osg::Material *pMaterial = dynamic_cast<const osg::Material*>(pRAP->first.get());
                    if (NULL != pMaterial)
                    {
                        const osg::Vec4& Diffuse = pMaterial->getDiffuse(osg::Material::FRONT_AND_BACK);
                        const osg::Vec4& Ambient = pMaterial->getAmbient(osg::Material::FRONT_AND_BACK);
                        const osg::Vec4& Emissive = pMaterial->getEmission(osg::Material::FRONT_AND_BACK);
                        const osg::Vec4& Specular = pMaterial->getSpecular(osg::Material::FRONT_AND_BACK);
                        fout << "MATERIAL "
                            << "\"osg"<<igeode<<"mat"<<i
                            << "\" rgb " << Diffuse[0] << " " << Diffuse[1] << " " << Diffuse[2] << " "
                            << "amb " << Ambient[0] << " " << Ambient[1] << " " << Ambient[2] << " "
                            << "emis " << Emissive[0] << " " << Emissive[1] << " " << Emissive[2] << " "
                            << "spec " << Specular[0] << " " << Specular[1] << " " << Specular[2] << " "
                            << "shi " << (int)pMaterial->getShininess(osg::Material::FRONT_AND_BACK) << " "
                            << "trans " << 1.0 - Diffuse[3] << std::endl;
                        iNumMaterials++;
                    }
                }
            }
        }
    }
    return iNumMaterials;
}
void Geode::ProcessGeometry(ostream& fout, const unsigned int ioffset)
{
    // outputs one geode
    // extended for multiple geode models, GWM 2003.
    unsigned int i, j; //, k, m;
    const unsigned int iNumDrawables = getNumDrawables();
    int iNumMaterials = 0;
    const osg::StateSet::RefAttributePair* pRAP=NULL;
    // Let ac3d optimise the file