bool AbcWriteJob::checkCurveGrp()
{
MItDag itDag(MItDag::kBreadthFirst, MFn::kNurbsCurve);
itDag.reset(mCurDag, MItDag::kBreadthFirst, MFn::kNurbsCurve);
bool init = false;
int degree = 0;
MFnNurbsCurve::Form form = MFnNurbsCurve::kInvalid;
for (; !itDag.isDone(); itDag.next())
{
MDagPath curvePath;
if (itDag.getPath(curvePath) == MS::kSuccess)
{
MObject curve = curvePath.node();
if (!util::isIntermediate(curve) && curve.hasFn(MFn::kNurbsCurve))
{
MFnNurbsCurve fn(curvePath);
if (!init)
{
degree = fn.degree();
form = fn.form();
init = true;
}
else
{
if (degree != fn.degree() || form != fn.form())
return false;
}
}
}
}
return true;
}
MStatus FillStrandGaps::doIt(const MArgList & args) {
std::list<MObject> targets;
MStatus status = ArgList_GetModelObjects(args, syntax(), "-t", targets);
if (status != MStatus::kNotFound && status != MStatus::kSuccess) {
HMEVALUATE_RETURN_DESCRIPTION("ArgList_GetModelObjects", status);
}
if (targets.empty()) {
MSelectionList activeSelectionList;
HMEVALUATE_RETURN(status = MGlobal::getActiveSelectionList(activeSelectionList), status);
if (activeSelectionList.length() > 0) {
for (unsigned int i = 0; i < activeSelectionList.length(); ++i) {
MObject object;
HMEVALUATE_RETURN(status = activeSelectionList.getDependNode(i, object), status);
MFnDagNode dagNode(object);
MTypeId typeId;
HMEVALUATE_RETURN(typeId = dagNode.typeId(&status), status);
if (typeId == HelixBase::id || typeId == Helix::id)
targets.push_back(object);
else
MGlobal::displayWarning(MString("Ignoring unknown object \"") + dagNode.fullPathName() + "\"");
}
}
else {
/*
* Extract all helices
*/
MItDag itDag(MItDag::kDepthFirst, MFn::kPluginTransformNode, &status);
HMEVALUATE_RETURN_DESCRIPTION("MItDag::#ctor", status);
for (; !itDag.isDone(); itDag.next()) {
MObject object;
HMEVALUATE_RETURN(object = itDag.currentItem(&status), status);
bool is_helix;
HMEVALUATE_RETURN(is_helix = MFnDagNode(object).typeId(&status) == Helix::id, status);
if (is_helix)
targets.push_back(object);
}
}
}
return m_operation.fill(targets);
}
MStatus polyExporter::exportAll(ostream& os)
//Summary: finds and outputs all polygonal meshes in the DAG
//Args : os - an output stream to write to
//Returns: MStatus::kSuccess if the method succeeds
// MStatus::kFailure if the method fails
{
MStatus status;
//create an iterator for only the mesh components of the DAG
//
MItDag itDag(MItDag::kDepthFirst, MFn::kMesh, &status);
if (MStatus::kFailure == status) {
MGlobal::displayError("MItDag::MItDag");
return MStatus::kFailure;
}
for(;!itDag.isDone();itDag.next()) {
//get the current DAG path
//
MDagPath dagPath;
if (MStatus::kFailure == itDag.getPath(dagPath)) {
MGlobal::displayError("MDagPath::getPath");
return MStatus::kFailure;
}
MFnDagNode visTester(dagPath);
//if this node is visible, then process the poly mesh it represents
//
if(isVisible(visTester, status) && MStatus::kSuccess == status) {
if (MStatus::kFailure == processPolyMesh(dagPath, os)) {
return MStatus::kFailure;
}
}
}
return MStatus::kSuccess;
}
bool usdWriteJob::beginJob(const std::string &iFileName,
bool append,
double startTime,
double endTime)
{
// Check for DAG nodes that are a child of an already specified DAG node to export
// if that's the case, report the issue and skip the export
PxrUsdMayaUtil::ShapeSet::const_iterator m, n;
PxrUsdMayaUtil::ShapeSet::const_iterator endPath = mArgs.dagPaths.end();
for (m = mArgs.dagPaths.begin(); m != endPath; ) {
MDagPath path1 = *m; m++;
for (n = m; n != endPath; n++) {
MDagPath path2 = *n;
if (PxrUsdMayaUtil::isAncestorDescendentRelationship(path1,path2)) {
MString errorMsg = path1.fullPathName();
errorMsg += " and ";
errorMsg += path2.fullPathName();
errorMsg += " have an ancestor relationship. Skipping USD Export.";
MGlobal::displayError(errorMsg);
return false;
}
} // for n
} // for m
// Make sure the file name is a valid one with a proper USD extension.
const std::string iFileExtension = TfStringGetSuffix(iFileName, '.');
if (iFileExtension == PxrUsdMayaTranslatorTokens->UsdFileExtensionDefault ||
iFileExtension == PxrUsdMayaTranslatorTokens->UsdFileExtensionASCII ||
iFileExtension == PxrUsdMayaTranslatorTokens->UsdFileExtensionCrate) {
mFileName = iFileName;
} else {
mFileName = TfStringPrintf("%s.%s",
iFileName.c_str(),
PxrUsdMayaTranslatorTokens->UsdFileExtensionDefault.GetText());
}
MGlobal::displayInfo("usdWriteJob::beginJob: Create stage file "+MString(mFileName.c_str()));
ArResolverContext resolverCtx = ArGetResolver().GetCurrentContext();
if (append) {
mStage = UsdStage::Open(SdfLayer::FindOrOpen(mFileName), resolverCtx);
if (!mStage) {
MGlobal::displayError("Failed to open stage file "+MString(mFileName.c_str()));
return false;
}
} else {
mStage = UsdStage::CreateNew(mFileName, resolverCtx);
if (!mStage) {
MGlobal::displayError("Failed to create stage file "+MString(mFileName.c_str()));
return false;
}
}
// Set time range for the USD file
mStage->SetStartTimeCode(startTime);
mStage->SetEndTimeCode(endTime);
mModelKindWriter.Reset();
// Setup the requested render layer mode:
// defaultLayer - Switch to the default render layer before exporting,
// then switch back afterwards (no layer switching if
// the current layer IS the default layer).
// currentLayer - No layer switching before or after exporting. Just
// use whatever is the current render layer for export.
// modelingVariant - Switch to the default render layer before exporting,
// and export each render layer in the scene as a
// modeling variant, then switch back afterwards (no
// layer switching if the current layer IS the default
// layer). The default layer will be made the default
// modeling variant.
MFnRenderLayer currentLayer(MFnRenderLayer::currentLayer());
mCurrentRenderLayerName = currentLayer.name();
if (mArgs.renderLayerMode == PxUsdExportJobArgsTokens->modelingVariant) {
// Handle usdModelRootOverridePath for USD Variants
MFnRenderLayer::listAllRenderLayers(mRenderLayerObjs);
if (mRenderLayerObjs.length() > 1) {
mArgs.usdModelRootOverridePath = SdfPath("/_BaseModel_");
}
}
// Switch to the default render layer unless the renderLayerMode is
// 'currentLayer', or the default layer is already the current layer.
if (mArgs.renderLayerMode != PxUsdExportJobArgsTokens->currentLayer &&
MFnRenderLayer::currentLayer() != MFnRenderLayer::defaultRenderLayer()) {
// Set the RenderLayer to the default render layer
MFnRenderLayer defaultLayer(MFnRenderLayer::defaultRenderLayer());
MGlobal::executeCommand(MString("editRenderLayerGlobals -currentRenderLayer ")+
defaultLayer.name(), false, false);
}
// Pre-process the argument dagPath path names into two sets. One set
// contains just the arg dagPaths, and the other contains all parents of
// arg dagPaths all the way up to the world root. Partial path names are
// enough because Maya guarantees them to still be unique, and they require
// less work to hash and compare than full path names.
TfHashSet<std::string, TfHash> argDagPaths;
TfHashSet<std::string, TfHash> argDagPathParents;
PxrUsdMayaUtil::ShapeSet::const_iterator end = mArgs.dagPaths.end();
for (PxrUsdMayaUtil::ShapeSet::const_iterator it = mArgs.dagPaths.begin();
it != end; ++it) {
MDagPath curDagPath = *it;
std::string curDagPathStr(curDagPath.partialPathName().asChar());
argDagPaths.insert(curDagPathStr);
while (curDagPath.pop() && curDagPath.length() >= 0) {
curDagPathStr = curDagPath.partialPathName().asChar();
if (argDagPathParents.find(curDagPathStr) != argDagPathParents.end()) {
// We've already traversed up from this path.
break;
}
argDagPathParents.insert(curDagPathStr);
}
}
// Now do a depth-first traversal of the Maya DAG from the world root.
// We keep a reference to arg dagPaths as we encounter them.
MDagPath curLeafDagPath;
for (MItDag itDag(MItDag::kDepthFirst, MFn::kInvalid); !itDag.isDone(); itDag.next()) {
MDagPath curDagPath;
itDag.getPath(curDagPath);
std::string curDagPathStr(curDagPath.partialPathName().asChar());
if (argDagPathParents.find(curDagPathStr) != argDagPathParents.end()) {
// This dagPath is a parent of one of the arg dagPaths. It should
// be included in the export, but not necessarily all of its
// children should be, so we continue to traverse down.
} else if (argDagPaths.find(curDagPathStr) != argDagPaths.end()) {
// This dagPath IS one of the arg dagPaths. It AND all of its
// children should be included in the export.
curLeafDagPath = curDagPath;
} else if (!MFnDagNode(curDagPath).hasParent(curLeafDagPath.node())) {
// This dagPath is not a child of one of the arg dagPaths, so prune
// it and everything below it from the traversal.
itDag.prune();
continue;
}
MayaPrimWriterPtr primWriter = nullptr;
if (!createPrimWriter(curDagPath, &primWriter) &&
curDagPath.length() > 0) {
// This dagPath and all of its children should be pruned.
itDag.prune();
continue;
}
if (primWriter) {
mMayaPrimWriterList.push_back(primWriter);
// Write out data (non-animated/default values).
if (UsdPrim usdPrim = primWriter->write(UsdTimeCode::Default())) {
MDagPath dag = primWriter->getDagPath();
mDagPathToUsdPathMap[dag] = usdPrim.GetPath();
// If we are merging transforms and the object derives from
// MayaTransformWriter but isn't actually a transform node, we
// need to add its parent.
if (mArgs.mergeTransformAndShape) {
MayaTransformWriterPtr xformWriter =
boost::dynamic_pointer_cast<MayaTransformWriter>(
primWriter);
if (xformWriter) {
MDagPath xformDag = xformWriter->getTransformDagPath();
mDagPathToUsdPathMap[xformDag] = usdPrim.GetPath();
}
}
mModelKindWriter.OnWritePrim(usdPrim, primWriter);
if (primWriter->shouldPruneChildren()) {
itDag.prune();
}
}
}
}
// Writing Materials/Shading
PxrUsdMayaTranslatorMaterial::ExportShadingEngines(
mStage,
mArgs.dagPaths,
mArgs.shadingMode,
mArgs.mergeTransformAndShape,
mArgs.usdModelRootOverridePath);
if (!mModelKindWriter.MakeModelHierarchy(mStage)) {
return false;
}
// now we populate the chasers and run export default
mChasers.clear();
PxrUsdMayaChaserRegistry::FactoryContext ctx(mStage, mDagPathToUsdPathMap, mArgs);
for (const std::string& chaserName : mArgs.chaserNames) {
if (PxrUsdMayaChaserRefPtr fn =
PxrUsdMayaChaserRegistry::GetInstance().Create(chaserName, ctx)) {
mChasers.push_back(fn);
}
else {
std::string error = TfStringPrintf("Failed to create chaser: %s",
chaserName.c_str());
MGlobal::displayError(MString(error.c_str()));
}
}
for (const PxrUsdMayaChaserRefPtr& chaser : mChasers) {
if (!chaser->ExportDefault()) {
return false;
}
}
return true;
}
