Function Scene_DuplicateObjectMulti

src/luxcore/pyluxcore.cpp:1120–1177

}

static void Scene_DuplicateObjectMulti(luxcore::detail::SceneImpl *scene,
		const string &srcObjName,
		const string &dstObjNamePrefix,
		const unsigned int count,
		const boost::python::object &transformations,
		const boost::python::object &objectIDs) {
	if (!PyObject_CheckBuffer(objectIDs.ptr())){
		const string objType = extract<string>((objectIDs.attr("__class__")).attr("__name__"));
		throw runtime_error("Unsupported data type in Scene.DuplicateObject() method: " + objType);
	}
	if (!PyObject_CheckBuffer(transformations.ptr())) {
		const string objType = extract<string>((transformations.attr("__class__")).attr("__name__"));
		throw runtime_error("Unsupported data type in Scene.DuplicateObject() method: " + objType);
	}

	Py_buffer transformationsView;
	if (PyObject_GetBuffer(transformations.ptr(), &transformationsView, PyBUF_SIMPLE)) {
		const string objType = extract<string>((transformations.attr("__class__")).attr("__name__"));
		throw runtime_error("Unable to get a data view in Scene.DuplicateObject() method: " + objType);
	}
	Py_buffer objectIDsView;
	if (PyObject_GetBuffer(objectIDs.ptr(), &objectIDsView, PyBUF_SIMPLE)) {
		PyBuffer_Release(&transformationsView);

		const string objType = extract<string>((transformations.attr("__class__")).attr("__name__"));
		throw runtime_error("Unable to get a data view in Scene.DuplicateObject() method: " + objType);
	}

	const size_t objectIDsBufferSize = sizeof(u_int) * count;
	if ((size_t)objectIDsView.len < objectIDsBufferSize) {
		const string errorMsg = "Not enough objectIDs in the buffer of Scene.DuplicateObject() method: " +
				luxrays::ToString(objectIDsView.len) + " instead of " + luxrays::ToString(objectIDsBufferSize);

		PyBuffer_Release(&objectIDsView);
		PyBuffer_Release(&transformationsView);

		throw runtime_error(errorMsg);
	}
	const size_t transformationsBufferSize = sizeof(float) * 16 * count;
	if ((size_t)transformationsView.len < transformationsBufferSize) {
		const string errorMsg = "Not enough matrices in the buffer of Scene.DuplicateObject() method: " +
				luxrays::ToString(transformationsView.len) + " instead of " + luxrays::ToString(transformationsBufferSize);

		PyBuffer_Release(&objectIDsView);
		PyBuffer_Release(&transformationsView);

		throw runtime_error(errorMsg);
	}

	float *transformationsBuffer = (float *)transformationsView.buf;
	u_int *objectIDsBuffer = (u_int *)objectIDsView.buf;

	scene->DuplicateObject(srcObjName, dstObjNamePrefix, count,
			transformationsBuffer, objectIDsBuffer);

	PyBuffer_Release(&transformationsView);
	PyBuffer_Release(&objectIDsView);
}