void Branch::spawnSubBranches(const int level, const double length, const double thickness)
{
if (level == recursiveDepth) return;
// Spawn subbranches (make more as we get smaller)
int numBranches = rand(0.2, 0.8, (level == 0 ? 2 : level) * initialBranches);
for (int i = 0; i < numBranches; i++) {
add_child(new Branch("SubBranch", level + 1,
nextThickness(thickness, level),
nextLength(length, level)));
totalBranches++;
}
// Tree branches seem to split in two at the ends so simulate that.
add_child(new Branch("SplitBranch", level + 1, nextThickness(thickness, level),
nextLength(length, level), length, -30.0, 0.0));
add_child(new Branch("SplitBranch", level + 1, nextThickness(thickness, level),
nextLength(length, level), length, 30.0, 0.0));
// Two branches coming out of the top looks a little weird so add a sphere.
Sphere* p_sphere = new Sphere();
GeometryNode* sphere = new GeometryNode("BranchTop", p_sphere);
sphere->set_material(&wood);
sphere->translate(Vector3D(0.0, 0.0, length));
sphere->scale(Vector3D(thickness, thickness, thickness));
add_child(sphere);
totalBranches += 3;
}
void SceneGraph::recomputeBoundingBox()
{
Node *node;
float center[3];
float size[3];
BoundingBox bbox;
for (node=getNodes(); node; node=node->nextTraversal()) {
if (node->isGroupingNode()) {
GroupingNode *gnode = (GroupingNode *)node;
gnode->getBoundingBoxCenter(center);
gnode->getBoundingBoxSize(size);
bbox.addBoundingBox(center, size);
}
else if (node->isGeometryNode()) {
GeometryNode *gnode = (GeometryNode *)node;
gnode->getBoundingBoxCenter(center);
gnode->getBoundingBoxSize(size);
bbox.addBoundingBox(center, size);
}
}
setBoundingBox(&bbox);
}
void GBufferPass::update_ubershader_from_scene(SerializedScene const& scene,
SceneGraph const& graph) {
bool ubershader_available = true;
for (auto const& geometry_pair : scene.geometrynodes_) {
ubershader_available =
ubershader_available && ubershaders_.count(geometry_pair.first);
}
if (!ubershader_available) {
auto get_ubershader = [&](Node * n) {
GeometryNode* geode = dynamic_cast<GeometryNode*>(n);
if (geode) {
std::type_index type(typeid(*geode));
if (!ubershaders_.count(type)) {
auto const& ressource =
GeometryDatabase::instance()->lookup(geode->get_filename());
if (ressource) {
auto ubershader = ressource->get_ubershader();
ubershader->create(materials_);
ubershaders_[type] = ubershader;
}
}
}
}
;
gua::dfs_traverse(graph.get_root().get(), get_ubershader);
}
}
void BallAndStick::process(const Molecule &molecule,
Rendering::GroupNode &node)
{
// Add a sphere node to contain all of the spheres.
GeometryNode *geometry = new GeometryNode;
node.addChild(geometry);
SphereGeometry *spheres = new SphereGeometry;
spheres->identifier().molecule = &molecule;
spheres->identifier().type = Rendering::AtomType;
geometry->addDrawable(spheres);
for (Index i = 0; i < molecule.atomCount(); ++i) {
Core::Atom atom = molecule.atom(i);
unsigned char atomicNumber = atom.atomicNumber();
const unsigned char *c = Elements::color(atomicNumber);
Vector3ub color(c[0], c[1], c[2]);
spheres->addSphere(atom.position3d().cast<float>(), color,
static_cast<float>(Elements::radiusVDW(atomicNumber))
* 0.3f);
}
float bondRadius = 0.1f;
CylinderGeometry *cylinders = new CylinderGeometry;
cylinders->identifier().molecule = &molecule;
cylinders->identifier().type = Rendering::BondType;
geometry->addDrawable(cylinders);
for (Index i = 0; i < molecule.bondCount(); ++i) {
Core::Bond bond = molecule.bond(i);
Vector3f pos1 = bond.atom1().position3d().cast<float>();
Vector3f pos2 = bond.atom2().position3d().cast<float>();
Vector3ub color1(Elements::color(bond.atom1().atomicNumber()));
Vector3ub color2(Elements::color(bond.atom2().atomicNumber()));
Vector3f bondVector = pos2 - pos1;
float bondLength = bondVector.norm();
bondVector /= bondLength;
switch (bond.order()) {
case 3: {
Vector3f delta = bondVector.unitOrthogonal() * (2.0f * bondRadius);
cylinders->addCylinder(pos1 + delta, bondVector, bondLength, bondRadius,
color1, color2, i);
cylinders->addCylinder(pos1 - delta, bondVector, bondLength, bondRadius,
color1, color2, i);
}
default:
case 1:
cylinders->addCylinder(pos1, bondVector, bondLength, bondRadius,
color1, color2, i);
break;
case 2: {
Vector3f delta = bondVector.unitOrthogonal() * bondRadius;
cylinders->addCylinder(pos1 + delta, bondVector, bondLength, bondRadius,
color1, color2, i);
cylinders->addCylinder(pos1 - delta, bondVector, bondLength, bondRadius,
color1, color2, i);
}
}
}
}
// ---|> NodeVisitor
NodeVisitor::status enter(Node * node) override {
GeometryNode * geometry = dynamic_cast<GeometryNode*>(node);
if (geometry != nullptr) {
currentTriangleCount += geometry->getTriangleCount();
++currentNodeCount;
}
if (currentTriangleCount > maxTriangleCount || currentNodeCount > maxNodeCount) {
return BREAK_TRAVERSAL;
}
return CONTINUE_TRAVERSAL;
}
void Branch::createGeometryNode(const double length, const double thickness, const double upDist,
const double upAngle, const double zAngle)
{
Cylinder* c_branch= new Cylinder;
GeometryNode* branch = new GeometryNode("TreeTrunk", c_branch);
branch->set_material(&wood);
this->rotate('z', zAngle);
this->translate(Vector3D(0.0, 0.0, upDist));
this->rotate('y', upAngle);
branch->scale(Vector3D(thickness, thickness, length));
add_child(branch);
}
int gr_node_set_bump_cmd(lua_State* L)
{
GRLUA_DEBUG_CALL;
gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node");
luaL_argcheck(L, selfdata != 0, 1, "Node expected");
GeometryNode* self = dynamic_cast<GeometryNode*>(selfdata->node);
luaL_argcheck(L, self != 0, 1, "Geometry node expected");
const char* filename = luaL_checkstring(L, 2);
self->set_bump(filename);
return 0;
}
//Render meshes as they are traversed in the scene graph
void NMS_SceneRenderer::sg_before(Matrix transform, SceneGraphNode * node)
{
GeometryNode * geomNode = (GeometryNode *) node;
NMS_Mesh* model = geomNode->getModel();
btRigidBody *b = geomNode->getCollisionBody();
glLoadIdentity();
Matrix t_transposed = ~transform;
glMultMatrixf(t_transposed.getElements());
if(b != NULL)
applyPhysics(b);
setWireframeModeGL(wireframe);
(*model).setMaterialGL();
(*model).render(currentTime);
}
int gr_node_set_texture_scale_cmd(lua_State* L)
{
GRLUA_DEBUG_CALL;
gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node");
luaL_argcheck(L, selfdata != 0, 1, "Node expected");
GeometryNode* self = dynamic_cast<GeometryNode*>(selfdata->node);
luaL_argcheck(L, self != 0, 1, "Geometry node expected");
int scale_x = luaL_checknumber(L, 2);
int scale_y = luaL_checknumber(L, 3);
self->set_texture_scale(scale_x, scale_y);
return 0;
}
Leaf::Leaf(const std::string& name, const double branchThickness, const double branchLength)
: SceneNode(name)
{
ImagePrimitive* i_leaf = new ImagePrimitive();
GeometryNode* leaf = new GeometryNode("Leaf", i_leaf);
leaf->set_material(&leafTexture);
double upDist = rand(1.0/3.0, 1.0, branchLength);
double zAngle = rand(0.0, 1.0, 360.0);
double diagonalDist = branchThickness + sqrt(2.0) - 0.25;
double xyDist = -diagonalDist * sqrt(2.0) / 2.0;
leaf->rotate('z', zAngle);
leaf->translate(Vector3D(xyDist, xyDist, upDist));
add_child(leaf);
}
int gr_node_set_refractionIndex_cmd(lua_State* L)
{
GRLUA_DEBUG_CALL;
gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node");
luaL_argcheck(L, selfdata != 0, 1, "Node expected");
GeometryNode* self = dynamic_cast<GeometryNode*>(selfdata->node);
luaL_argcheck(L, self != 0, 1, "Geometry node expected");
double index = luaL_checknumber(L, 2);
PhongMaterial * pM = (PhongMaterial*)self->get_material();
if (pM == NULL) { std::cerr << "LUA:You are using a non-phong Material!" << std::endl; return 0; }
pM->setRefractiveIndex(index);
return 0;
}
void VanDerWaals::process(const Core::Molecule &molecule,
Rendering::GroupNode &node)
{
// Add a sphere node to contain all of the VdW spheres.
GeometryNode *geometry = new GeometryNode;
node.addChild(geometry);
SphereGeometry *spheres = new SphereGeometry;
spheres->identifier().molecule = &molecule;
spheres->identifier().type = Rendering::AtomType;
geometry->addDrawable(spheres);
for (size_t i = 0; i < molecule.atomCount(); ++i) {
Core::Atom atom = molecule.atom(i);
unsigned char atomicNumber = atom.atomicNumber();
const unsigned char *c = Elements::color(atomicNumber);
Vector3ub color(c[0], c[1], c[2]);
spheres->addSphere(atom.position3d().cast<float>(), color,
static_cast<float>(Elements::radiusVDW(atomicNumber)));
}
}
int gr_node_set_material_cmd(lua_State* L)
{
GRLUA_DEBUG_CALL;
gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node");
luaL_argcheck(L, selfdata != 0, 1, "Node expected");
GeometryNode* self = dynamic_cast<GeometryNode*>(selfdata->node);
luaL_argcheck(L, self != 0, 1, "Geometry node expected");
gr_material_ud* matdata = (gr_material_ud*)luaL_checkudata(L, 2, "gr.material");
luaL_argcheck(L, matdata != 0, 2, "Material expected");
Material* material = matdata->material;
self->set_material(material);
return 0;
}
int gr_node_set_km_cmd(lua_State* L)
{
GRLUA_DEBUG_CALL;
gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node");
luaL_argcheck(L, selfdata != 0, 1, "Node expected");
GeometryNode* self = dynamic_cast<GeometryNode*>(selfdata->node);
luaL_argcheck(L, self != 0, 1, "Geometry node expected");
double km[3];
for (int i = 0; i < 3; i++) {
km[i] = luaL_checknumber(L, i + 2);
}
PhongMaterial * pM = (PhongMaterial*)self->get_material();
if (pM == NULL) { std::cerr << "LUA:You are using a non-phong Material!" << std::endl; return 0; }
pM->setKM(Colour(km[0], km[1], km[2]));
return 0;
}
int gr_node_set_bump_cmd(lua_State* L)
{
GRLUA_DEBUG_CALL;
gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node");
luaL_argcheck(L, selfdata != 0, 1, "Node expected");
GeometryNode* self = dynamic_cast<GeometryNode*>(selfdata->node);
luaL_argcheck(L, self != 0, 1, "Geometry node expected");
const char* name = luaL_checkstring(L, 2);
Image * bump = new Image();
if (!bump->loadPng(name)) { std::cerr << "LUA:Loading PNG Failed!!" << std::endl; return -1; }
self->apply_bump(bump);
return 0;
}
int glwidgettest(int argc, char* argv[])
{
// Set up the default format for our GL contexts.
QSurfaceFormat defaultFormat = QSurfaceFormat::defaultFormat();
defaultFormat.setSamples(4);
QSurfaceFormat::setDefaultFormat(defaultFormat);
QApplication app(argc, argv);
GLWidget widget;
widget.setGeometry(10, 10, 250, 250);
widget.show();
GeometryNode* geometry = new GeometryNode;
SphereGeometry* spheres = new SphereGeometry;
geometry->addDrawable(spheres);
spheres->addSphere(Vector3f(0, 0, 0), Vector3ub(255, 0, 0), 0.5);
spheres->addSphere(Vector3f(2, 0, 0), Vector3ub(0, 255, 0), 1.5);
spheres->addSphere(Vector3f(0, 2, 1), Vector3ub(0, 0, 255), 1.0);
widget.renderer().scene().rootNode().addChild(geometry);
// Make sure the widget renders the scene, and store it in a QImage.
widget.raise();
widget.repaint();
// Run the application for a while, and then quit so we can save an image.
QTimer timer;
timer.setSingleShot(true);
app.connect(&timer, SIGNAL(timeout()), SLOT(quit()));
timer.start(200);
app.exec();
// Grab the frame buffer of the GLWidget and save it to a QImage.
QImage image = widget.grabFramebuffer();
// Set up the image regression test.
ImageRegressionTest test(argc, argv);
// Do the image threshold test, printing output to the std::cout for ctest.
return test.imageThresholdTest(image, std::cout);
}
static void describeGeometryNode(ExporterContext & /*ctxt*/,DescriptionMap & desc, Node * node) {
desc.setString(Consts::ATTR_NODE_TYPE, Consts::NODE_TYPE_GEOMETRY);
std::unique_ptr<DescriptionMap> dataDesc(new DescriptionMap);
GeometryNode * gn = dynamic_cast<GeometryNode*>(node);
// annotate with bounding box
const Geometry::Box bb = gn->getBB();
const Geometry::Vec3 center = bb.getCenter();
std::stringstream s;
s << center.getX() << " " << center.getY() << " " << center.getZ() << " " << bb.getExtentX() << " " << bb.getExtentY() << " " << bb.getExtentZ();
dataDesc->setString(Consts::ATTR_MESH_BB, s.str());
Rendering::Mesh * m = gn->getMesh();
if(m!=nullptr) { // mesh present?
// no filename -> store data in .minsg
if(m->getFileName().empty()) {
std::ostringstream meshStream;
if(Rendering::Serialization::saveMesh(gn->getMesh(), "mmf", meshStream)) {
dataDesc->setString(Consts::ATTR_DATA_TYPE,"mesh");
dataDesc->setString(Consts::ATTR_DATA_ENCODING,"base64");
const std::string streamString = meshStream.str();
const std::string meshString = Util::encodeBase64(std::vector<uint8_t>(streamString.begin(), streamString.end()));
dataDesc->setString(Consts::DATA_BLOCK,meshString);
}
} else { // filename given?
Util::FileName meshFilename(m->getFileName());
// // make path to mesh relative to scene (if mesh lies below the scene)
// Util::FileUtils::makeRelativeIfPossible(ctxt.sceneFile, meshFilename);
dataDesc->setString(Consts::ATTR_DATA_TYPE,"mesh");
dataDesc->setString(Consts::ATTR_MESH_FILENAME,meshFilename.toShortString());
}
ExporterTools::addDataEntry(desc, std::move(dataDesc));
}
}
void QTAIMEngine::process(const Core::Molecule &coreMolecule,
Rendering::GroupNode &node)
{
const QtGui::Molecule *molecule =
dynamic_cast<const QtGui::Molecule*>(&coreMolecule);
if (!molecule)
return;
// Create sphere/cylinder nodes.
GeometryNode *geometry = new GeometryNode;
node.addChild(geometry);
SphereGeometry *spheres = new SphereGeometry;
geometry->addDrawable(spheres);
CylinderGeometry *cylinders = new CylinderGeometry;
geometry->addDrawable(cylinders);
// Render the bond paths
if(
molecule->property("QTAIMFirstNCPIndexVariantList").isValid() &&
molecule->property("QTAIMSecondNCPIndexVariantList").isValid() &&
molecule->property("QTAIMLaplacianAtBondCriticalPoints").isValid() &&
molecule->property("QTAIMEllipticityAtBondCriticalPoints").isValid() &&
molecule->property("QTAIMBondPathSegmentStartIndex").isValid() &&
molecule->property("QTAIMBondPathSegmentEndIndex").isValid() &&
molecule->property("QTAIMXBondPaths").isValid() &&
molecule->property("QTAIMYBondPaths").isValid() &&
molecule->property("QTAIMZBondPaths").isValid()
)
{
QVariant firstNCPIndexVariant=molecule->property("QTAIMFirstNCPIndexVariantList");
QVariant secondNCPIndexVariant=molecule->property("QTAIMSecondNCPIndexVariantList");
QVariant laplacianAtBondCriticalPointsVariant=molecule->property("QTAIMLaplacianAtBondCriticalPoints");
QVariant ellipticityAtBondCriticalPointsVariant=molecule->property("QTAIMEllipticityAtBondCriticalPoints");
QVariant bondPathSegmentStartIndexVariant=molecule->property("QTAIMBondPathSegmentStartIndex");
QVariant bondPathSegmentEndIndexVariant=molecule->property("QTAIMBondPathSegmentEndIndex");
QVariant xBondPathsVariant=molecule->property("QTAIMXBondPaths");
QVariant yBondPathsVariant=molecule->property("QTAIMYBondPaths");
QVariant zBondPathsVariant=molecule->property("QTAIMZBondPaths");
QVariantList firstNCPIndexVariantList=firstNCPIndexVariant.toList();
QVariantList secondNCPIndexVariantList=secondNCPIndexVariant.toList();
QVariantList laplacianAtBondCriticalPointsVariantList=laplacianAtBondCriticalPointsVariant.toList();
QVariantList ellipticityAtBondCriticalPointsVariantList=ellipticityAtBondCriticalPointsVariant.toList();
QVariantList bondPathSegmentStartIndexVariantList=bondPathSegmentStartIndexVariant.toList();
QVariantList bondPathSegmentEndIndexVariantList=bondPathSegmentEndIndexVariant.toList();
QVariantList xBondPathsVariantList=xBondPathsVariant.toList();
QVariantList yBondPathsVariantList=yBondPathsVariant.toList();
QVariantList zBondPathsVariantList=zBondPathsVariant.toList();
for( qint64 i=0 ; i < firstNCPIndexVariantList.length() ; ++i )
{
qint64 start=bondPathSegmentStartIndexVariantList.at(i).toLongLong();
qint64 end=bondPathSegmentEndIndexVariantList.at(i).toLongLong();
if( laplacianAtBondCriticalPointsVariantList.at(i).toReal() > 0.0 )
{
const qint64 step=4;
Vector3f xyz;
Vector3ub color(255, 255, 255);
for( qint64 j=start ; j < end-1 ; j=j+step )
{
xyz << xBondPathsVariantList.at(j).toFloat(),
yBondPathsVariantList.at(j).toFloat(),
zBondPathsVariantList.at(j).toFloat();
spheres->addSphere(xyz, color, 0.025f);
}
}
else
{
const qint64 step=1;
Vector3ub color(255, 255, 255);
double radius=0.025;
Vector3f v1;
Vector3f v2;
Vector3f direction;
for( qint64 j=start ; j < end-1 ; j=j+step )
{
v1 << xBondPathsVariantList.at(j).toFloat(),
yBondPathsVariantList.at(j).toFloat(),
zBondPathsVariantList.at(j).toFloat();
v2 << xBondPathsVariantList.at(j+1).toFloat(),
yBondPathsVariantList.at(j+1).toFloat(),
zBondPathsVariantList.at(j+1).toFloat();
direction = v2 - v1;
float length = direction.norm();
direction /= length;
cylinders->addCylinder(v1, direction, length, radius, color);
}
}
} // bond path
}
if( molecule->property("QTAIMXNuclearCriticalPoints").isValid() &&
molecule->property("QTAIMYNuclearCriticalPoints").isValid() &&
molecule->property("QTAIMZNuclearCriticalPoints").isValid() )
{
QVariant xNuclearCriticalPointsVariant=molecule->property("QTAIMXNuclearCriticalPoints");
QVariant yNuclearCriticalPointsVariant=molecule->property("QTAIMYNuclearCriticalPoints");
QVariant zNuclearCriticalPointsVariant=molecule->property("QTAIMZNuclearCriticalPoints");
QVariantList xNuclearCriticalPointsVariantList=xNuclearCriticalPointsVariant.toList();
QVariantList yNuclearCriticalPointsVariantList=yNuclearCriticalPointsVariant.toList();
QVariantList zNuclearCriticalPointsVariantList=zNuclearCriticalPointsVariant.toList();
if( xNuclearCriticalPointsVariantList.length() == yNuclearCriticalPointsVariantList.length() &&
xNuclearCriticalPointsVariantList.length() == zNuclearCriticalPointsVariantList.length() )
{
Vector3f xyz;
Vector3ub color(255, 64, 255);
for( qint64 i=0 ; i < xNuclearCriticalPointsVariantList.length() ; ++i )
{
xyz << xNuclearCriticalPointsVariantList.at(i).toFloat(),
yNuclearCriticalPointsVariantList.at(i).toFloat(),
zNuclearCriticalPointsVariantList.at(i).toFloat();
// map->setFromPrimitive(ncp);
spheres->addSphere(xyz, color, 0.1f);
}
}
}
if( molecule->property("QTAIMXBondCriticalPoints").isValid() &&
molecule->property("QTAIMYBondCriticalPoints").isValid() &&
molecule->property("QTAIMZBondCriticalPoints").isValid() )
{
QVariant xBondCriticalPointsVariant=molecule->property("QTAIMXBondCriticalPoints");
QVariant yBondCriticalPointsVariant=molecule->property("QTAIMYBondCriticalPoints");
QVariant zBondCriticalPointsVariant=molecule->property("QTAIMZBondCriticalPoints");
QVariantList xBondCriticalPointsVariantList=xBondCriticalPointsVariant.toList();
QVariantList yBondCriticalPointsVariantList=yBondCriticalPointsVariant.toList();
QVariantList zBondCriticalPointsVariantList=zBondCriticalPointsVariant.toList();
if( xBondCriticalPointsVariantList.length() == yBondCriticalPointsVariantList.length() &&
xBondCriticalPointsVariantList.length() == zBondCriticalPointsVariantList.length() )
{
Vector3ub color(255, 255, 32);
Vector3f xyz;
for( qint64 i=0 ; i < xBondCriticalPointsVariantList.length() ; ++i )
{
xyz << xBondCriticalPointsVariantList.at(i).toFloat(),
yBondCriticalPointsVariantList.at(i).toFloat(),
zBondCriticalPointsVariantList.at(i).toFloat();
// map->setFromPrimitive(ncp);
spheres->addSphere(xyz, color, 0.1f);
}
}
}
if( molecule->property("QTAIMXElectronDensitySources").isValid() &&
molecule->property("QTAIMYElectronDensitySources").isValid() &&
molecule->property("QTAIMZElectronDensitySources").isValid() )
{
QVariant xElectronDensitySourcesVariant=molecule->property("QTAIMXElectronDensitySources");
QVariant yElectronDensitySourcesVariant=molecule->property("QTAIMYElectronDensitySources");
QVariant zElectronDensitySourcesVariant=molecule->property("QTAIMZElectronDensitySources");
QVariantList xElectronDensitySourcesVariantList=xElectronDensitySourcesVariant.toList();
QVariantList yElectronDensitySourcesVariantList=yElectronDensitySourcesVariant.toList();
QVariantList zElectronDensitySourcesVariantList=zElectronDensitySourcesVariant.toList();
if( xElectronDensitySourcesVariantList.length() == yElectronDensitySourcesVariantList.length() &&
xElectronDensitySourcesVariantList.length() == zElectronDensitySourcesVariantList.length() )
{
Vector3ub color(64, 64, 255);
Vector3f xyz;
for( qint64 i=0 ; i < xElectronDensitySourcesVariantList.length() ; ++i )
{
xyz << xElectronDensitySourcesVariantList.at(i).toFloat(),
yElectronDensitySourcesVariantList.at(i).toFloat(),
zElectronDensitySourcesVariantList.at(i).toFloat();
// map->setFromPrimitive(ncp);
spheres->addSphere(xyz, color, 0.1f);
}
}
}
}
int qttextlabeltest(int argc, char *argv[])
{
// Set up the default format for our GL contexts.
QGLFormat defaultFormat = QGLFormat::defaultFormat();
defaultFormat.setSampleBuffers(true);
QGLFormat::setDefaultFormat(defaultFormat);
// Create and show widget
QApplication app(argc, argv);
GLWidget widget;
widget.setGeometry(10, 10, 500, 500);
widget.show();
// Create scene
GeometryNode *geometry = new GeometryNode;
widget.renderer().scene().rootNode().addChild(geometry);
// Add a small sphere at the origin for reference:
SphereGeometry *spheres = new SphereGeometry;
spheres->addSphere(Vector3f::Zero(), Vector3ub(128, 128, 128), 0.1f);
geometry->addDrawable(spheres);
// Default text property:
TextProperties tprop;
// Test alignment:
TextLabel3D *l3 = NULL;
TextLabel2D *l2 = NULL;
// 3D:
tprop.setColorRgb(255, 0, 0);
tprop.setAlign(TextProperties::HLeft, TextProperties::VTop);
l3 = new TextLabel3D;
l3->setText("Upper Left Anchor");
l3->setAnchor(Vector3f::Zero());
l3->setTextProperties(tprop);
geometry->addDrawable(l3);
tprop.setColorRgb(0, 255, 0);
tprop.setAlign(TextProperties::HLeft, TextProperties::VBottom);
l3 = new TextLabel3D;
l3->setText("Bottom Left Anchor");
l3->setAnchor(Vector3f::Zero());
l3->setTextProperties(tprop);
geometry->addDrawable(l3);
tprop.setColorRgb(0, 0, 255);
tprop.setAlign(TextProperties::HRight, TextProperties::VTop);
l3 = new TextLabel3D;
l3->setText("Upper Right Anchor");
l3->setAnchor(Vector3f::Zero());
l3->setTextProperties(tprop);
geometry->addDrawable(l3);
tprop.setColorRgb(255, 255, 0);
tprop.setAlign(TextProperties::HRight, TextProperties::VBottom);
l3 = new TextLabel3D;
l3->setText("Bottom Right Anchor");
l3->setAnchor(Vector3f::Zero());
l3->setTextProperties(tprop);
geometry->addDrawable(l3);
tprop.setColorRgba(255, 255, 255, 220);
tprop.setRotationDegreesCW(90.f);
tprop.setAlign(TextProperties::HCenter, TextProperties::VCenter);
l3 = new TextLabel3D;
l3->setText("Centered Anchor (3D)");
l3->setAnchor(Vector3f::Zero());
l3->setTextProperties(tprop);
l3->setRenderPass(Avogadro::Rendering::TranslucentPass);
geometry->addDrawable(l3);
tprop.setRotationDegreesCW(0.f);
tprop.setAlpha(255);
// 2D:
tprop.setColorRgb(255, 0, 0);
tprop.setAlign(TextProperties::HLeft, TextProperties::VTop);
l2 = new TextLabel2D;
l2->setText("Upper Left Corner");
l2->setAnchor(Vector2i(0, widget.height()));
l2->setTextProperties(tprop);
geometry->addDrawable(l2);
tprop.setColorRgb(0, 255, 0);
tprop.setAlign(TextProperties::HLeft, TextProperties::VBottom);
l2 = new TextLabel2D;
l2->setText("Bottom Left Corner");
l2->setAnchor(Vector2i(0, 0));
l2->setTextProperties(tprop);
geometry->addDrawable(l2);
tprop.setColorRgb(0, 0, 255);
tprop.setAlign(TextProperties::HRight, TextProperties::VTop);
l2 = new TextLabel2D;
l2->setText("Upper Right Corner");
l2->setAnchor(Vector2i(widget.width(), widget.height()));
l2->setTextProperties(tprop);
geometry->addDrawable(l2);
tprop.setColorRgb(255, 255, 0);
tprop.setAlign(TextProperties::HRight, TextProperties::VBottom);
l2 = new TextLabel2D;
l2->setText("Bottom Right Corner");
l2->setAnchor(Vector2i(widget.width(), 0));
l2->setTextProperties(tprop);
geometry->addDrawable(l2);
tprop.setColorRgba(255, 255, 255, 220);
tprop.setAlign(TextProperties::HCenter, TextProperties::VCenter);
l2 = new TextLabel2D;
l2->setText("Centered Anchor (2D)");
l2->setAnchor(Vector2i(widget.width() / 2, widget.height() / 2));
l2->setTextProperties(tprop);
geometry->addDrawable(l2);
// Test the TextLabel3D's radius feature:
spheres->addSphere(Vector3f(0.f, 6.f, 0.f), Vector3ub(255, 255, 255), 1.f);
tprop.setColorRgba(255, 128, 64, 255);
tprop.setRotationDegreesCW(90.f);
l3 = new TextLabel3D;
l3->setText("Clipped");
l3->setAnchor(Vector3f(0.f, 6.f, 0.f));
l3->setTextProperties(tprop);
geometry->addDrawable(l3);
tprop.setColorRgba(64, 128, 255, 255);
tprop.setRotationDegreesCW(45.f);
l3 = new TextLabel3D;
l3->setText("Projected");
l3->setAnchor(Vector3f(0.f, 6.f, 0.f));
l3->setTextProperties(tprop);
l3->setRadius(1.f);
geometry->addDrawable(l3);
// Make sure the widget renders the scene, and store it in a QImage.
widget.raise();
widget.repaint();
// Run the application for a while, and then quit so we can save an image.
QTimer timer;
timer.setSingleShot(true);
app.connect(&timer, SIGNAL(timeout()), SLOT(quit()));
timer.start(200);
app.exec();
// Grab the frame buffer of the GLWidget and save it to a QImage.
QImage image = widget.grabFrameBuffer(false);
// Set up the image regression test.
ImageRegressionTest test(argc, argv);
// Do the image threshold test, printing output to the std::cout for ctest.
return test.imageThresholdTest(image, std::cout);
}