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Support group nodes #22

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Bogdan Nagirniak merged 18 commits from BogdanNagirniak/blender:matx-group-nodes into matx-export-material 2023-09-18 12:49:19 +02:00
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source/blender/io/usd/hydra/material.cc
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@ -81,6 +81,15 @@ void MaterialData::init()
MaterialX::DocumentPtr doc = blender::nodes::materialx::export_to_materialx(
scene_delegate_->depsgraph, (Material *)id);
pxr::UsdMtlxRead(doc, stage);
pxr::UsdMtlxReadNodeGraphs(doc, stage);
auto stage_str = [&stage]() {
std::string str;
stage->ExportToString(&str);
return str;
};
ID_LOGN(2, "Stage:\n%s", stage_str().c_str());
if (pxr::UsdPrim materials = stage->GetPrimAtPath(pxr::SdfPath("/MaterialX/Materials"))) {
pxr::UsdPrimSiblingRange children = materials.GetChildren();
if (!children.empty()) {