void Geometry::postCommit(RenderContext &)
{
auto ospGeometry = valueAs<OSPGeometry>();
if (hasChild("material") && !hasChild("materialList")) {
// XXX FIXME never happens
ospSetMaterial(ospGeometry, child("material").valueAs<OSPMaterial>());
}
auto materialListNode = child("materialList").nodeAs<MaterialList>();
const auto &materialList = materialListNode->nodes;
if (!materialList.empty()) {
std::vector<OSPObject> mats;
for (auto mat : materialList) {
auto m = mat->valueAs<OSPObject>();
if (m)
mats.push_back(m);
}
auto ospMaterialList = ospNewData(mats.size(), OSP_OBJECT, mats.data());
ospCommit(ospMaterialList);
ospSetData(valueAs<OSPObject>(), "materialList", ospMaterialList);
ospRelease(ospMaterialList);
}
ospCommit(ospGeometry);
}
void VolumeViewer::addGeometry(std::string filename)
{
// For now we assume PLY geometry files. Later we can support other geometry formats.
// Get filename if not specified.
if(filename.empty())
filename = QFileDialog::getOpenFileName(this, tr("Load geometry"), ".", "Geometry files (*.ply *.dds)").toStdString();
if(filename.empty())
return;
// Attempt to load the geometry through the TriangleMeshFile loader.
OSPGeometry triangleMesh = ospNewGeometry("trianglemesh");
// If successful, commit the triangle mesh and add it to all models.
if(TriangleMeshFile::importTriangleMesh(filename, triangleMesh) != NULL) {
// For now: if this is a DDS geometry, assume it is a horizon and its color should be mapped through the first volume's transfer function.
if(QString(filename.c_str()).endsWith(".dds") && modelStates.size() > 0 && modelStates[0].volumes.size() > 0) {
OSPMaterial material = ospNewMaterial(renderer, "default");
ospSet3f(material, "Kd", 1,1,1);
ospSetObject(material, "volume", modelStates[0].volumes[0]);
ospCommit(material);
ospSetMaterial(triangleMesh, material);
}
ospCommit(triangleMesh);
// Create an instance of the geometry and add the instance to the main model(s)--this prevents the geometry
// from being rebuilt every time the main model is committed (e.g. when slices / isosurfaces are manipulated)
OSPModel modelInstance = ospNewModel();
ospAddGeometry(modelInstance, triangleMesh);
ospCommit(modelInstance);
ospcommon::affine3f xfm = ospcommon::one;
OSPGeometry triangleMeshInstance = ospNewInstance(modelInstance, (osp::affine3f&)xfm);
ospCommit(triangleMeshInstance);
for(size_t i=0; i<modelStates.size(); i++) {
ospAddGeometry(modelStates[i].model, triangleMeshInstance);
ospCommit(modelStates[i].model);
}
// Force render.
render();
}
}
