OSG::NodeTransitPtr createLabeledTorus(OSG::Vec3f trans, int idx) { OSG::NodeTransitPtr node = OSG::Node::create(); OSG::TransformRefPtr xform = OSG::Transform::create(); OSG::Matrix mat; // --- setup transform ------------------ mat.setIdentity(); mat.setTranslate(trans); xform->setMatrix(mat); node->setCore(xform); // --- setup label ---------------------- OSG::NodeRefPtr labelNode = OSG::Node::create(); OSG::LabelRefPtr label = (idx) ? createTextLabel(idx) : createIconLabel(); updateLabelParams(label, idx); labelNode->setCore(label); // --- add torus ------------------------ labelNode->addChild(OSG::makeTorus(.5, 2, 16, 16)); node->addChild(labelNode); return node; }
OSG::NodeTransitPtr createLabeledScene(void) { OSG::NodeTransitPtr scene = OSG::Node::create(); scene->setCore(OSG::Group::create()); #if 0 scene->addChild(createLabeledTorus(OSG::Vec3f( 1, 3, 0), 0)); scene->addChild(createLabeledTorus(OSG::Vec3f( 2, 3, 0), 0)); scene->addChild(createLabeledTorus(OSG::Vec3f( 4, 3, 0), 0)); #endif scene->addChild(createLabeledTorus(OSG::Vec3f( 3, 3, 0), 0)); scene->addChild(createLabeledTorus(OSG::Vec3f( 3,-3, 0), 1)); scene->addChild(createLabeledTorus(OSG::Vec3f(-3, 3, 0), 2)); scene->addChild(createLabeledTorus(OSG::Vec3f(-3,-3, 0), 3)); return scene; }
OSG::NodeTransitPtr createScene(void) { // create the scene: OSG::TransformTransitPtr xform = OSG::Transform::create(); OSG::Matrix mat; mat.setTranslate(OSG::Vec3f(2,0,0)); xform->setMatrix(mat); OSG::NodeTransitPtr scene = OSG::Node::create(); scene->addChild(createLabeledScene()); scene->setCore(xform); OSG::commitChanges(); return scene; }
OSG::NodeTransitPtr setupAnim(void) { OSG::NodeTransitPtr returnValue = OSG::Node::create(); returnValue->setCore(OSG::Group::create()); static const OSG::Real32 aOffsets[6][3] = { { -5.5, 0.0, 0.0 }, { 5.5, 0.0, 0.0 }, { 0.0, -5.5, 0.0 }, { 0.0, 5.5, 0.0 }, { 0.0, 0.0, -5.5 }, { 0.0, 0.0, 5.5 } }; static const OSG::Real32 aDiffuse[6][3] = { { 1.f, 0.f, 0.f }, { 0.f, 1.f, 0.f }, { 0.f, 0.f, 1.f }, { 1.f, 1.f, 0.f }, { 1.f, 0.f, 1.f }, { 0.f, 1.f, 1.f } }; for(OSG::UInt32 i = 0; i < 6; ++i) { OSG::NodeUnrecPtr pTN = OSG::Node::create(); pAnimTrs[i] = OSG::ComponentTransform::create(); OSG::GeometryUnrecPtr pGeo = OSG::makeBoxGeo(1.f, 1.f, 1.f, 2, 2, 2); OSG::NodeUnrecPtr pGeoNode = OSG::Node::create(); pGeoNode->setCore(pGeo); OSG::SimpleMaterialUnrecPtr pMat = OSG::SimpleMaterial::create(); pMat->setDiffuse(OSG::Color3f(aDiffuse[i][0], aDiffuse[i][1], aDiffuse[i][2])); pMat->setAmbient(OSG::Color3f(aDiffuse[i][0], aDiffuse[i][1], aDiffuse[i][2])); pGeo->setMaterial(pMat); pAnimTrs[i]->editTranslation().setValues(aOffsets[i][0], aOffsets[i][1], aOffsets[i][2]); pTN->setCore (pAnimTrs[i]); pTN->addChild(pGeoNode ); returnValue->addChild(pTN); } return returnValue; }
OSG::NodeTransitPtr makeScene( void ) { setupDefaultMaterial(); // Let's create two untrimmed surfaces that lie beside each other. // Even if the tessellation error is set to be the same for // both surfaces, due to numerical instabilities and sampling errors // small one pixel gaps will appear. By reducing the error you can // make most gaps disappear, but there will be still some left, even // if you reduce the error to be extremely small -- and as a sideeffect // the tessellation time plus the triangle count will explode. // You can try this by supplying the '-nofb' switch and // reducing the error by the 'g' key during rendering. // Of course if you set different tessellation errors (generally the // case when using view-dependent LOD algorithms) the gaps // will be a lot more visible. Try the '-nofb' and '-de' switches, and // play around with different errors using the 'f' and 'g' // keys for the first surface, and the 'h' and 'j' keys for the // second surface. // // Note that this is not a very good example for the Fat Borders as // the surfaces are untrimmed, and they are also very nice numerically // (real world models are usually much worse) and a basic uniform // tessellation would probably get rid of the gaps (which are not very // visible in the first place due to the nice properties of these // surfaces). Note also that if you set too high errors or // radically different errors, the spike-through artifacts of the // Fat Borders will appear. // We will hopefully come up with a better example later. :-) OSG::NodeTransitPtr root = OSG::Node::create(); OSG::NodeRefPtr surf1 = OSG::Node::create(); OSG::NodeRefPtr surf2 = OSG::Node::create(); root->setCore( OSG::Group::create() ); root->addChild( surf1 ); root->addChild( surf2 ); OSG::SurfaceRefPtr surface1 = OSG::Surface ::create(); OSG::GeoPnt3fPropertyRefPtr cps1 = OSG::GeoPnt3fProperty::create(); cps1->clear(); cps1->push_back( OSG::Pnt3f( 1, -1, 0 )); cps1->push_back( OSG::Pnt3f( 1, 0, 0 )); cps1->push_back( OSG::Pnt3f( 1, 0, 1 )); cps1->push_back( OSG::Pnt3f( 1, 1, 1 )); cps1->push_back( OSG::Pnt3f( 0, -1, 0 )); cps1->push_back( OSG::Pnt3f( 0, 0, 0 )); cps1->push_back( OSG::Pnt3f( 0, 0, 1 )); cps1->push_back( OSG::Pnt3f( 0, 1, 1 )); cps1->push_back( OSG::Pnt3f( 0, -1, 1 )); cps1->push_back( OSG::Pnt3f( 0, 0, 1 )); cps1->push_back( OSG::Pnt3f( 0, 0, 0 )); cps1->push_back( OSG::Pnt3f( 0, 1, 0 )); cps1->push_back( OSG::Pnt3f( -1, -1, 1 )); cps1->push_back( OSG::Pnt3f( -1, 0, 1 )); cps1->push_back( OSG::Pnt3f( -1, 0, 0 )); cps1->push_back( OSG::Pnt3f( -1, 1, 0 )); OSG::SurfaceRefPtr surface2 = OSG::Surface ::create(); OSG::GeoPnt3fPropertyRefPtr cps2 = OSG::GeoPnt3fProperty::create(); cps2->clear(); cps2->push_back( OSG::Pnt3f( 5, -2, 2 )); cps2->push_back( OSG::Pnt3f( 4, -1, 2 )); cps2->push_back( OSG::Pnt3f( 3, 0, 0 )); cps2->push_back( OSG::Pnt3f( 5, 1, 0 )); cps2->push_back( OSG::Pnt3f( 2, -1, 1 )); cps2->push_back( OSG::Pnt3f( 2, 0, 1 )); cps2->push_back( OSG::Pnt3f( 2, 0, 0 )); cps2->push_back( OSG::Pnt3f( 2, 1, 0 )); cps2->push_back( OSG::Pnt3f( 2, -1, 0 )); cps2->push_back( OSG::Pnt3f( 2, 0, 0 )); cps2->push_back( OSG::Pnt3f( 2, 0, 1 )); cps2->push_back( OSG::Pnt3f( 2, 1, 1 )); cps2->push_back( OSG::Pnt3f( 1, -1, 0 )); cps2->push_back( OSG::Pnt3f( 1, 0, 0 )); cps2->push_back( OSG::Pnt3f( 1, 0, 1 )); cps2->push_back( OSG::Pnt3f( 1, 1, 1 )); std::vector<OSG::Real64> knots1; std::vector<OSG::Pnt2f > points; knots1.clear(); knots1.push_back(0); knots1.push_back(0); knots1.push_back(1); knots1.push_back(1); // first, let's clear the trimming surface1->removeCurves(); // add simple outer trimming around the domain points.clear(); points.push_back( OSG::Pnt2f(0,0) ); points.push_back( OSG::Pnt2f(1,0) ); surface1->addCurve( 1, knots1, points, true ); points.clear(); points.push_back( OSG::Pnt2f(1,0) ); points.push_back( OSG::Pnt2f(1,1) ); surface1->addCurve( 1, knots1, points, false ); points.clear(); points.push_back( OSG::Pnt2f(1,1) ); points.push_back( OSG::Pnt2f(0,1) ); surface1->addCurve( 1, knots1, points, false ); points.clear(); points.push_back( OSG::Pnt2f(0,1) ); points.push_back( OSG::Pnt2f(0,0) ); surface1->addCurve( 1, knots1, points, false ); // set up dimensions and knot vectors: surface1->setDimU( 3 ); surface1->setDimV( 3 ); surface1->editMFKnotsU()->clear(); surface1->editMFKnotsU()->push_back( 0 ); surface1->editMFKnotsU()->push_back( 0 ); surface1->editMFKnotsU()->push_back( 0 ); surface1->editMFKnotsU()->push_back( 0 ); surface1->editMFKnotsU()->push_back( 1 ); surface1->editMFKnotsU()->push_back( 1 ); surface1->editMFKnotsU()->push_back( 1 ); surface1->editMFKnotsU()->push_back( 1 ); surface1->editMFKnotsV()->clear(); surface1->editMFKnotsV()->push_back( 0 ); surface1->editMFKnotsV()->push_back( 0 ); surface1->editMFKnotsV()->push_back( 0 ); surface1->editMFKnotsV()->push_back( 0 ); surface1->editMFKnotsV()->push_back( 1 ); surface1->editMFKnotsV()->push_back( 1 ); surface1->editMFKnotsV()->push_back( 1 ); surface1->editMFKnotsV()->push_back( 1 ); // set control points surface1->setControlPoints( cps1 ); // set error surface1->setError( g_error1 ); // and finally set the material surface1->setMaterial( gpcl_defaultmat ); // first, let's clear the trimming surface2->removeCurves(); // add simple outer trimming around the domain points.clear(); points.push_back( OSG::Pnt2f(1,0) ); points.push_back( OSG::Pnt2f(2,0) ); surface2->addCurve( 1, knots1, points, true ); points.clear(); points.push_back( OSG::Pnt2f(2,0) ); points.push_back( OSG::Pnt2f(2,1) ); surface2->addCurve( 1, knots1, points, false ); points.clear(); points.push_back( OSG::Pnt2f(2,1) ); points.push_back( OSG::Pnt2f(1,1) ); surface2->addCurve( 1, knots1, points, false ); points.clear(); points.push_back( OSG::Pnt2f(1,1) ); points.push_back( OSG::Pnt2f(1,0) ); surface2->addCurve( 1, knots1, points, false ); // set up dimensions and knot vectors: surface2->setDimU( 3 ); surface2->setDimV( 3 ); surface2->editMFKnotsU()->clear(); surface2->editMFKnotsU()->push_back( 1 ); surface2->editMFKnotsU()->push_back( 1 ); surface2->editMFKnotsU()->push_back( 1 ); surface2->editMFKnotsU()->push_back( 1 ); surface2->editMFKnotsU()->push_back( 2 ); surface2->editMFKnotsU()->push_back( 2 ); surface2->editMFKnotsU()->push_back( 2 ); surface2->editMFKnotsU()->push_back( 2 ); surface2->editMFKnotsV()->clear(); surface2->editMFKnotsV()->push_back( 0 ); surface2->editMFKnotsV()->push_back( 0 ); surface2->editMFKnotsV()->push_back( 0 ); surface2->editMFKnotsV()->push_back( 0 ); surface2->editMFKnotsV()->push_back( 1 ); surface2->editMFKnotsV()->push_back( 1 ); surface2->editMFKnotsV()->push_back( 1 ); surface2->editMFKnotsV()->push_back( 1 ); // set control points surface2->setControlPoints( cps2 ); // set error surface2->setError( g_error2 ); // and finally set the material surface2->setMaterial( gpcl_defaultmat ); surf1->setCore( surface1 ); surf2->setCore( surface2 ); gpcl_surface1 = surface1; gpcl_surface2 = surface2; return root; }