Exemplo n.º 1
0
void HeightFieldDrawable::accept(osg::PrimitiveFunctor& pf) const
{
    // use the cached vertex positions for PrimitiveFunctor operations
    if (!_geometry) return;

    if (_vertices.valid())
    {
        pf.setVertexArray(_vertices->size(), &((*_vertices)[0]));

        const osg::DrawElementsUShort* deus = dynamic_cast<const osg::DrawElementsUShort*>(_geometry->getDrawElements());
        if (deus)
        {
            pf.drawElements(GL_QUADS, deus->size(), &((*deus)[0]));
        }
        else
        {
            const osg::DrawElementsUInt* deui = dynamic_cast<const osg::DrawElementsUInt*>(_geometry->getDrawElements());
            if (deui)
            {
                pf.drawElements(GL_QUADS, deui->size(), &((*deui)[0]));
            }
        }
    }
    else
    {
        _geometry->accept(pf);
    }
}
Exemplo n.º 2
0
// Functor supplies triangles to things like IntersectionVisitor, ComputeBoundsVisitor, etc.
void
TileDrawable::accept(osg::PrimitiveFunctor& f) const
{
    const osg::Vec3Array& verts   = *static_cast<osg::Vec3Array*>(_geom->getVertexArray());
    const osg::Vec3Array& normals = *static_cast<osg::Vec3Array*>(_geom->getNormalArray());
        
#if 1 // triangles (OSG-stats-friendly)

    //TODO: improve by caching the entire Vec3f, not just the height.

    f.begin(GL_TRIANGLES);
    for(int t=0; t<_tileSize-1; ++t)
    {
        for(int s=0; s<_tileSize-1; ++s)
        {
            int i00 = t*_tileSize + s;
            int i10 = i00 + 1;
            int i01 = i00 + _tileSize;
            int i11 = i01 + 1;
            
            osg::Vec3d v01 = verts[i01] + normals[i01] * _heightCache[i01];
            osg::Vec3d v10 = verts[i10] + normals[i10] * _heightCache[i10];

            f.vertex( verts[i00] + normals[i00] * _heightCache[i00] );
            f.vertex( v01 );
            f.vertex( v10 );
            
            f.vertex( v10 );
            f.vertex( v01 );
            f.vertex( verts[i11] + normals[i11] * _heightCache[i11] );
        }
    }
    f.end();

#else
    // triangle-strips (faster? but not stats-friendly; will cause the OSG stats
    // to report _tileSize-1 primitive sets per TileDrawable even though there
    // is only one.

    for(int t=0; t<_tileSize-1; ++t)
    {
        f.begin( GL_TRIANGLE_STRIP );

        for(int s=0; s<_tileSize; ++s)
        {
            int i = t*_tileSize + s;
            f.vertex( verts[i] + normals[i] * _heightCache[i] );

            i += _tileSize;
            f.vertex( verts[i] + normals[i] * _heightCache[i] );
        }

        f.end();
    }

#endif
}
Exemplo n.º 3
0
void
TileDrawable::accept(osg::PrimitiveFunctor& f) const
{
    if ( !_elevationRaster.valid() )
        return;

    const osg::Vec3Array* verts   = static_cast<osg::Vec3Array*>(_geom->getVertexArray());
    const osg::Vec3Array* normals = static_cast<osg::Vec3Array*>(_geom->getNormalArray());

    ImageUtils::PixelReader elevation(_elevationRaster.get());

    float
        scaleU = _elevationScaleBias(0,0),
        scaleV = _elevationScaleBias(1,1),
        biasU  = _elevationScaleBias(3,0),
        biasV  = _elevationScaleBias(3,1);    
    
    for(int t=0; t<_tileSize-1; ++t)
    {
        float v  = (float)t     / (float)(_tileSize-1);
        float v1 = (float)(t+1) / (float)(_tileSize-1);

        f.begin( GL_QUAD_STRIP );

        for(int s=0; s<_tileSize; ++s)
        {
            float u = (float)s / (float)(_tileSize-1);

            int index = t*_tileSize + s;
            {
                const osg::Vec3f& vert   = (*verts)[index];
                const osg::Vec3f& normal = (*normals)[index];
                float h = elevation(u*scaleU+biasU, v*scaleV+biasV).r();
                f.vertex( vert + normal*h );
            }

            index += _tileSize;
            {
                const osg::Vec3f& vert = (*verts)[index];
                const osg::Vec3f& normal = (*normals)[index];
                float h = elevation(u*scaleU+biasU, v1*scaleV+biasV).r();
                f.vertex( vert + normal*h );
            }
        }

        f.end();
    }
}
Exemplo n.º 4
0
void Text3D::accept(osg::PrimitiveFunctor& pf) const
{
    // ** for each line, do ...
    TextRenderInfo::const_iterator itLine, endLine = _textRenderInfo.end();
    for (itLine = _textRenderInfo.begin(); itLine!=endLine; ++itLine)
    {
        // ** for each glyph in the line, do ...
        LineRenderInfo::const_iterator it, end = itLine->end();
        for (it = itLine->begin(); it!=end; ++it)
        {
            pf.setVertexArray(it->_glyph->getVertexArray()->size(),&(it->_glyph->getVertexArray()->front()));

            // ** render the front face of the glyph
            osg::Geometry::PrimitiveSetList & pslFront = it->_glyph->getFrontPrimitiveSetList();
            for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslFront.begin(), end = pslFront.end(); itr!=end; ++itr)
            {
                (*itr)->accept(pf);
            }

            // ** render the wall face of the glyph
            osg::Geometry::PrimitiveSetList & pslWall = it->_glyph->getWallPrimitiveSetList();
            for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslWall.begin(), end=pslWall.end(); itr!=end; ++itr)
            {
                (*itr)->accept(pf);
            }

            // ** render the back face of the glyph
            osg::Geometry::PrimitiveSetList & pslBack = it->_glyph->getBackPrimitiveSetList();
            for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslBack.begin(), end=pslBack.end(); itr!=end; ++itr)
            {
                (*itr)->accept(pf);
            }
        }
    }
}
Exemplo n.º 5
0
// Functor supplies triangles to things like IntersectionVisitor, ComputeBoundsVisitor, etc.
void
TileDrawable::accept(osg::PrimitiveFunctor& f) const
{        
#if 1 // triangles (OSG-stats-friendly)
    //TODO: improve by caching the entire Vec3f, not just the height.
    
    f.begin(GL_TRIANGLES);
    for(int t=0; t<_tileSize-1; ++t)
    {
        for(int s=0; s<_tileSize-1; ++s)
        {
            int i00 = t*_tileSize + s;
            int i10 = i00 + 1;
            int i01 = i00 + _tileSize;
            int i11 = i01 + 1;

            f.vertex(_mesh[i00]);  f.vertex(_mesh[i01]);  f.vertex(_mesh[i10]);
            f.vertex(_mesh[i10]);  f.vertex(_mesh[i01]);  f.vertex(_mesh[i11]);
        }
    }

    f.end();

#else
    // triangle-strips (faster? but not stats-friendly; will cause the OSG stats
    // to report _tileSize-1 primitive sets per TileDrawable even though there
    // is only one.

    for(int t=0; t<_tileSize-1; ++t)
    {
        f.begin( GL_TRIANGLE_STRIP );

        for(int s=0; s<_tileSize; ++s)
        {
            int i = t*_tileSize + s;
            f.vertex( _mesh[i] );

            i += _tileSize;
            f.vertex( _mesh[i] );
        }

        f.end();
    }

#endif
}
Exemplo n.º 6
0
void
TileDrawable::accept(osg::PrimitiveFunctor& f) const
{
    const osg::Vec3Array* verts   = static_cast<osg::Vec3Array*>(_geom->getVertexArray());
    const osg::Vec3Array* normals = static_cast<osg::Vec3Array*>(_geom->getNormalArray());

    if ( _elevationRaster.valid() )
    {
        ImageUtils::PixelReader elevation(_elevationRaster.get());
        elevation.setBilinear(true);

        float
            scaleU = _elevationScaleBias(0,0),
            scaleV = _elevationScaleBias(1,1),
            biasU  = _elevationScaleBias(3,0),
            biasV  = _elevationScaleBias(3,1);

        //float
        //    texelScale = (float)(_elevationRaster->s()-1)/(float)_elevationRaster->s(),
        //    texelBias  = 0.5f/(float)(_elevationRaster->s());

        if ( osg::equivalent(scaleU, 0.0f) || osg::equivalent(scaleV, 0.0f) )
        {
            OE_WARN << LC << "Precision loss in tile " << _key.str() << "\n";
        }
    
        for(int t=0; t<_tileSize-1; ++t)
        {
            float v0 = (float)t     / (float)(_tileSize-1);
            float v1 = (float)(t+1) / (float)(_tileSize-1);

            v0 = v0*scaleV + biasV;
            v1 = v1*scaleV + biasV;

            f.begin( GL_QUAD_STRIP );

            for(int s=0; s<_tileSize; ++s)
            {
                float u = (float)s / (float)(_tileSize-1);
                
                u = u*scaleU + biasU;

                int index = t*_tileSize + s;
                {
                    const osg::Vec3f& vert   = (*verts)[index];
                    const osg::Vec3f& normal = (*normals)[index];
                    float h = elevation(u, v0).r();
                    f.vertex( vert + normal*h );
                }

                index += _tileSize;
                {
                    const osg::Vec3f& vert = (*verts)[index];
                    const osg::Vec3f& normal = (*normals)[index];
                    float h = elevation(u, v1).r();
                    f.vertex( vert + normal*h );
                }
            }

            f.end();
        }
    }

    // no elevation
    else
    {
        for(int t=0; t<_tileSize-1; ++t)
        {
            f.begin( GL_QUAD_STRIP );

            for(int s=0; s<_tileSize; ++s)
            {
                int index = t*_tileSize + s;
                f.vertex( (*verts)[index] );
                f.vertex( (*verts)[index + _tileSize] );
            }

            f.end();
        }
    }
}
Exemplo n.º 7
0
void SharedGeometry::accept(osg::PrimitiveFunctor& pf) const
{
    pf.setVertexArray(_vertexArray->getNumElements(),static_cast<const osg::Vec3*>(_vertexArray->getDataPointer()));

    _drawElements->accept(pf);
}
Exemplo n.º 8
0
void ImpostorSprite::accept(osg::PrimitiveFunctor& functor) const
{
    functor.setVertexArray(4,_coords);
    functor.drawArrays( GL_QUADS, 0, 4);

}