Method DuplicateObject

src/slg/scene/parseobjects.cpp:181–242

void Scene::DuplicateObject(const std::string &srcObjName, const std::string &dstObjName,
		const luxrays::Transform &trans, const u_int dstObjID) {
	const SceneObject *srcObj = objDefs.GetSceneObject(srcObjName);

	// Check the type of mesh
	ExtMesh *newMesh;
	const ExtMesh *srcMesh = srcObj->GetExtMesh();
	switch (srcMesh->GetType()) {
		case TYPE_EXT_TRIANGLE: {
			// Create an instance of the mesh
			const string instanceShapeName = "InstanceMesh-" + dstObjName;
			DefineMesh(instanceShapeName, srcMesh->GetName(), trans);

			newMesh = extMeshCache.GetExtMesh(instanceShapeName);
			break;
		}
		case TYPE_EXT_TRIANGLE_INSTANCE: {
			// Get the instanced mesh
			const ExtInstanceTriangleMesh *srcInstanceMesh = static_cast<const ExtInstanceTriangleMesh *>(srcMesh);
			const ExtTriangleMesh *baseMesh = static_cast<const ExtTriangleMesh *>(srcInstanceMesh->GetTriangleMesh());

			// Create the new instance of the base mesh
			const string instanceShapeName = "InstanceMesh-" + dstObjName;
			DefineMesh(instanceShapeName, baseMesh->GetName(), trans);

			newMesh = extMeshCache.GetExtMesh(instanceShapeName);
			break;
		}
		case TYPE_EXT_TRIANGLE_MOTION: {
			// Get the motion mesh
			const ExtMotionTriangleMesh *srcMotionMesh = static_cast<const ExtMotionTriangleMesh *>(srcMesh);
			const ExtTriangleMesh *baseMesh = static_cast<const ExtTriangleMesh *>(srcMotionMesh->GetTriangleMesh());

			// Create the new instance of the base mesh
			const string instanceShapeName = "InstanceMesh-" + dstObjName;
			DefineMesh(instanceShapeName, baseMesh->GetName(), trans);

			newMesh = extMeshCache.GetExtMesh(instanceShapeName);
			break;
		}
		default:
			throw runtime_error("Unknown mesh type in Scene::DuplicateObject(): " + ToString(srcMesh->GetType()));
	}

	// If the Null index was passed as ID, copy the ID of the source object
	const u_int objID = (dstObjID == 0xffffffff) ? srcObj->GetID() : dstObjID;

	SceneObject *dstObj = new SceneObject(newMesh, srcObj->GetMaterial(), objID,
			srcObj->IsCameraInvisible());
	dstObj->SetName(dstObjName);
	objDefs.DefineSceneObject(dstObj);

	// Check if it is a light source
	const Material *mat = dstObj->GetMaterial();
	if (mat->IsLightSource()) {
		SDL_LOG("The " << dstObjName << " object is a light sources with " << dstObj->GetExtMesh()->GetTotalTriangleCount() << " triangles");

		objDefs.DefineIntersectableLights(lightDefs, dstObj);