CSulGeomGrid::CSulGeomGrid() :
osg::Geode(),
m_colorGrid( 1.0f, 1.0f, 1.0f, 1.0f ),
m_colorGridDiv( 0.5f, 0.5f, 0.5f, 1.0f )
{
createDrawable();
}
void SimpleHeightmap::create(int w, int h, float res, const float height) {
setup(w,h,res);
float* vx = new float[w*h*6];
for(int x=0; x<w; ++x) for(int y=0; y<h; ++y) {
float* v = vx + (x + y*w) * 6;
v[0] = x * res;
v[1] = height;
v[2] = y * res;
}
createDrawable(vx);
}
void SimpleHeightmap::create(int w, int h, float res, const ubyte* data, int stride, float scale, float offset) {
setup(w,h,res);
float* vx = new float[w*h*6];
for(int x=0; x<w; ++x) for(int y=0; y<h; ++y) {
float* v = vx + (x + y*w) * 6;
v[0] = x * res;
v[1] = data[x+y*w] * scale + offset;
v[2] = y * res;
}
createDrawable(vx);
}
CSulGeomBox::CSulGeomBox( float extent ) :
CSulGeode()
{
m_minX = -extent;
m_maxX = extent;
m_minY = -extent;
m_maxY = extent;
m_minZ = -extent;
m_maxZ = extent;
createDrawable();
}
CSulGeomBox::CSulGeomBox( const osg::BoundingBox& bb ) :
CSulGeode()
{
m_minX = bb.xMin();
m_maxX = bb.xMax();
m_minY = bb.yMin();
m_maxY = bb.yMax();
m_minZ = bb.zMin();
m_maxZ = bb.zMax();
createDrawable();
}
CSulGeomBox::CSulGeomBox( float minX, float maxX, float minY, float maxY, float minZ, float maxZ ) :
CSulGeode()
{
m_minX = minX;
m_maxX = maxX;
m_minY = minY;
m_maxY = maxY;
m_minZ = minZ;
m_maxZ = maxZ;
createDrawable();
}
CSulGeomBox::CSulGeomBox( float extentX, float extentY, float extentZ ) :
CSulGeode()
{
m_minX = -extentX;
m_maxX = extentX;
m_minY = -extentY;
m_maxY = extentY;
m_minZ = -extentZ;
m_maxZ = extentZ;
createDrawable();
}
CSulGeomArrow3D::CSulGeomArrow3D( float len, const osg::Vec4& colorHead, const osg::Vec4& colorBody ) :
CSulGeode(),
m_colorHead( colorHead ),
m_colorBody( colorBody )
{
m_headLen = len/3.0f;
m_headRadius = len/5.0f;
m_bodyLen = len-m_headLen;
m_bodyRadius = len/10.0f;
createDrawable();
}
void CSulGeomTriangleList::setColor( float r, float g, float b, float a )
{
if ( !m_rColors.valid() )
{
createDrawable();
}
sigma::uint32 count = m_vecTri.size()*3;
for ( sigma::uint32 i=0; i<count; i++ )
{
(*m_rColors)[i].set( r, g, b, a );
}
m_rGeo->dirtyDisplayList();
}
glws::Drawable *
createDrawable(void) {
return createDrawable(defaultProfile);
}
osg::Node*
createSceneGraph()
{
// Create the root node Group.
osg::ref_ptr<osg::Group> root = new osg::Group;
{
// Disable lighting in the root node's StateSet. Make
// it PROTECTED to prevent osgviewer from enabling it.
osg::StateSet* state = root->getOrCreateStateSet();
state->setMode( GL_LIGHTING,
osg::StateAttribute::OFF |
osg::StateAttribute::PROTECTED );
}
// Create the leaf node Geode and attach the Drawable.
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
geode->addDrawable( createDrawable() );
osg::Matrix m;
{
// Upper-left: Render the drawable with default state.
osg::ref_ptr<osg::MatrixTransform> mt = new osg::MatrixTransform;
m.makeTranslate( -2.f, 0.f, 2.f );
mt->setMatrix( m );
root->addChild( mt.get() );
mt->addChild( geode.get() );
}
{
// Upper-right Set shade model to FLAT.
osg::ref_ptr<osg::MatrixTransform> mt = new osg::MatrixTransform;
mt->setName( "Flat" );
m.makeTranslate( 2.f, 0.f, 2.f );
mt->setMatrix( m );
root->addChild( mt.get() );
mt->addChild( geode.get() );
osg::StateSet* state = mt->getOrCreateStateSet();
osg::ShadeModel* sm = new osg::ShadeModel();
sm->setMode( osg::ShadeModel::FLAT );
state->setAttribute( sm );
}
{
// Lower-left: Enable back face culling.
osg::ref_ptr<osg::MatrixTransform> mt = new osg::MatrixTransform;
m.makeTranslate( -2.f, 0.f, -2.f );
mt->setMatrix( m );
root->addChild( mt.get() );
mt->addChild( geode.get() );
osg::StateSet* state = mt->getOrCreateStateSet();
osg::CullFace* cf = new osg::CullFace(); // Default: BACK
state->setAttributeAndModes( cf );
}
{
// Lower-right: Set polygon mode to LINE in draw3's StateSet.
osg::ref_ptr<osg::MatrixTransform> mt = new osg::MatrixTransform;
m.makeTranslate( 2.f, 0.f, -2.f );
mt->setMatrix( m );
root->addChild( mt.get() );
mt->addChild( geode.get() );
osg::StateSet* state = mt->getOrCreateStateSet();
osg::PolygonMode* pm = new osg::PolygonMode(
osg::PolygonMode::FRONT_AND_BACK,
osg::PolygonMode::LINE );
state->setAttributeAndModes( pm );
// Also set the line width to 3.
osg::LineWidth* lw = new osg::LineWidth( 3.f );
state->setAttribute( lw );
}
return( root.release() );
}
CSulGeomAxis::CSulGeomAxis( float len ) :
m_len( len )
{
createDrawable();
}
glws::Drawable *
createDrawable(void) {
return createDrawable(getDefaultProfile());
}
