// Draw all the Nebulae
void NebulaMgr::draw(StelCore* core)
{
const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000);
StelPainter sPainter(prj);
StelSkyDrawer* skyDrawer = core->getSkyDrawer();
Nebula::hintsBrightness = hintsFader.getInterstate()*flagShow.getInterstate();
sPainter.enableTexture2d(true);
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
// Use a 1 degree margin
const double margin = 1.*M_PI/180.*prj->getPixelPerRadAtCenter();
const SphericalRegionP& p = prj->getViewportConvexPolygon(margin, margin);
// Print all the nebulae of all the selected zones
float maxMagHints = skyDrawer->getLimitMagnitude()*1.2f-2.f+(hintsAmount*1.2f)-2.f;
float maxMagLabels = skyDrawer->getLimitMagnitude()-2.f+(labelsAmount*1.2f)-2.f;
sPainter.setFont(nebulaFont);
DrawNebulaFuncObject func(maxMagHints, maxMagLabels, &sPainter, core, hintsFader.getInterstate()>0.0001);
nebGrid.processIntersectingRegions(p, func);
if (GETSTELMODULE(StelObjectMgr)->getFlagSelectedObjectPointer())
drawPointer(core, sPainter);
}
// Draw constellations art textures
void ConstellationMgr::drawArt(StelRenderer* renderer, StelProjectorP projector) const
{
renderer->setBlendMode(BlendMode_Add);
vector < Constellation * >::const_iterator iter;
SphericalRegionP region = projector->getViewportConvexPolygon();
for (iter = asterisms.begin(); iter != asterisms.end(); ++iter)
{
Constellation* cons = *iter;
if(NULL == cons->artTexture && !cons->artTexturePath.isEmpty())
{
cons->artTexture = renderer->createTexture(cons->artTexturePath);
}
if(NULL == cons->artVertices)
{
// Tesselate on the plane assuming a tangential projection for the image
const int resolution = 5;
cons->generateArtVertices(renderer, resolution);
}
cons->drawArtOptim(renderer, projector, *region);
}
}