UsdPrim
PxrUsdMayaShadingModeExportContext::MakeStandardMaterialPrim(
const AssignmentVector& assignmentsToBind,
const std::string& name) const
{
UsdPrim ret;
std::string materialName = name;
if (materialName.empty()) {
MStatus status;
MFnDependencyNode seDepNode(_shadingEngine, &status);
if (!status) {
return ret;
}
MString seName = seDepNode.name();
materialName = MNamespace::stripNamespaceFromName(seName).asChar();
}
materialName = PxrUsdMayaUtil::SanitizeName(materialName);
UsdStageRefPtr stage = GetUsdStage();
if (UsdPrim materialParent = _GetMaterialParent(stage, assignmentsToBind)) {
SdfPath materialPath = materialParent.GetPath().AppendChild(
TfToken(materialName));
UsdShadeMaterial material = UsdShadeMaterial::Define(
GetUsdStage(), materialPath);
UsdPrim materialPrim = material.GetPrim();
// could use this to determine where we want to export.
TF_FOR_ALL(iter, assignmentsToBind) {
const SdfPath &boundPrimPath = iter->first;
const VtIntArray &faceIndices = iter->second;
UsdPrim boundPrim = stage->OverridePrim(boundPrimPath);
if (faceIndices.empty()) {
material.Bind(boundPrim);
} else if (TfGetEnvSetting(PIXMAYA_EXPORT_OLD_STYLE_FACESETS)) {
UsdGeomFaceSetAPI faceSet = material.CreateMaterialFaceSet(
boundPrim);
faceSet.AppendFaceGroup(faceIndices, materialPath);
} else {
// It might be worth adding a utility method for the following
// block of code in core.
UsdGeomSubset faceSubset =
UsdShadeMaterial::CreateMaterialBindFaceSubset(
UsdGeomImageable(boundPrim),
/* subsetName */ TfToken(materialName),
faceIndices);
material.Bind(faceSubset.GetPrim());
UsdShadeMaterial::SetMaterialBindFaceSubsetsFamilyType(
UsdGeomImageable(boundPrim),
UsdGeomSubset::FamilyType::Partition);
}
}
return materialPrim;
}
PXR_NAMESPACE_USING_DIRECTIVE
void
TestTemplates()
{
// --------------------------------------------------------------------- //
// This test operates on /RootPrim.foo
// and /RootPrim.foo:hidden
// --------------------------------------------------------------------- //
SdfPath primPath("/RootPrim");
TfToken prop("foo");
TfToken metaField("hidden");
std::string propPath(primPath.GetString() + "." + prop.GetString());
// --------------------------------------------------------------------- //
// Author scene and compose the Stage
// --------------------------------------------------------------------- //
SdfLayerRefPtr layer = SdfLayer::CreateAnonymous();
UsdStageRefPtr stage = UsdStage::Open(layer->GetIdentifier());
TF_VERIFY(stage->OverridePrim(primPath),
"Failed to create prim at %s",
primPath.GetText());
UsdPrim prim(stage->GetPrimAtPath(primPath));
TF_VERIFY(prim, "Failed to get Prim from %s", primPath.GetText());
// Grab the attribute we will be testing with.
UsdAttribute attr =
prim.CreateAttribute(prop, SdfValueTypeNames->Double3Array);
TF_VERIFY(attr, "Failed to create property at %s", propPath.c_str());
// --------------------------------------------------------------------- //
// Setup some test data
// --------------------------------------------------------------------- //
VtVec3dArray vtVecOut(1);
VtVec3dArray vtVecIn;
std::string tmp;
VtValue value;
// ===================================================================== //
// TEST READING METADATA
// ===================================================================== //
// --------------------------------------------------------------------- //
// GetMetadata & SetMetadata the value as a VtValue
// --------------------------------------------------------------------- //
TF_VERIFY(attr.SetMetadata(metaField, VtValue(true)),
"VtValue: Failed to set hidden metadata at %s",
propPath.c_str());
// Print the layer for debugging.
layer->ExportToString(&tmp);
std::cout << "-----------------------------------------" << std::endl;
std::cout << "Metadata -- VtValue:" << std::endl;
std::cout << tmp << std::endl;
// Verify the result.
TF_VERIFY(attr.GetMetadata(metaField, &value),
"Metadata -- VtValue: Failed to get property value at %s",
propPath.c_str());
TF_VERIFY(value.IsHolding<bool>(),
"Metadata -- VtValue: not holding bool%s",
propPath.c_str());
TF_VERIFY(value.Get<bool>(),
"Metadata -- VtValue: value was not true %s",
propPath.c_str());
// --------------------------------------------------------------------- //
// GetMetadata & SetMetadata the value as bool
// --------------------------------------------------------------------- //
bool valueIn = false;
TF_VERIFY(attr.SetMetadata(metaField, true),
"Metadata -- bool: Failed to set property at %s",
propPath.c_str());
// Print the layer for debugging.
tmp = "";
layer->ExportToString(&tmp);
std::cout << "-----------------------------------------" << std::endl;
std::cout << "Metadata -- bool:" << std::endl;
std::cout << tmp << std::endl;
// Verify Result.
TF_VERIFY(attr.GetMetadata(metaField, &valueIn),
"Metadata -- bool: Failed to get property value at %s",
propPath.c_str());
TF_VERIFY(valueIn,
"Metadata -- bool: value was not true %s",
propPath.c_str());
// ===================================================================== //
// TEST READING VALUES
// ===================================================================== //
// --------------------------------------------------------------------- //
// Get & Set the value as a VtValue
// --------------------------------------------------------------------- //
vtVecOut[0] = GfVec3d(9,8,7);
TF_VERIFY(attr.Set(VtValue(vtVecOut)),
"VtValue: Failed to set property at %s",
propPath.c_str());
// Print the layer for debugging.
layer->ExportToString(&tmp);
std::cout << "-----------------------------------------" << std::endl;
std::cout << "VtValue:" << std::endl;
std::cout << tmp << std::endl;
// Verify the result.
TF_VERIFY(attr.Get(&value),
"VtValue: Failed to get property value at %s",
propPath.c_str());
TF_VERIFY(value.IsHolding<VtVec3dArray>(),
"VtValue: not holding VtVec3dArray %s",
propPath.c_str());
TF_VERIFY(value.Get<VtVec3dArray>()[0] == vtVecOut[0],
"VtValue: VtVec3d[0] does not match %s",
propPath.c_str());
// --------------------------------------------------------------------- //
// Get & Set the value as a VtArray
// --------------------------------------------------------------------- //
vtVecOut[0] = GfVec3d(6,5,4);
TF_VERIFY(attr.Set(vtVecOut),
"Failed to set property at %s",
propPath.c_str());
// Print the layer for debugging.
tmp = "";
layer->ExportToString(&tmp);
std::cout << "-----------------------------------------" << std::endl;
std::cout << "VtArray:" << std::endl;
std::cout << tmp << std::endl;
// Verify Result.
TF_VERIFY(attr.Get(&vtVecIn),
"VtArray: Failed to get property value at %s",
propPath.c_str());
TF_VERIFY(vtVecIn[0] == vtVecOut[0],
"VtArray: VtVec3d[0] does not match %s",
propPath.c_str());
// --------------------------------------------------------------------- //
// Get & Set the value as a VtDictionary (Dictionary composition semantics
// are exercised in testUsdMetadata).
// --------------------------------------------------------------------- //
VtDictionary inDict;
inDict["$Side"] = "R";
TF_VERIFY(!prim.HasAuthoredMetadata(SdfFieldKeys->PrefixSubstitutions));
TF_VERIFY(prim.SetMetadata(SdfFieldKeys->PrefixSubstitutions, inDict));
VtDictionary outDict;
TF_VERIFY(prim.HasAuthoredMetadata(SdfFieldKeys->PrefixSubstitutions));
// Verify bug 97783 - GetMetadata should return true if Usd was able to
// retrieve/compose a VtDictionary.
TF_VERIFY(prim.GetMetadata(SdfFieldKeys->PrefixSubstitutions,&outDict));
TF_VERIFY(inDict == outDict);
std::cout << "-----------------------------------------" << std::endl;
std::cout << "VtDictionary:" << std::endl;
tmp = "";
layer->ExportToString(&tmp);
std::cout << tmp << std::endl;
}