Can not open Kitchen_set properly

[Robin-Wong]

Hello, expert. Why can't I open the Kitchen_set scene properly using ANARI + VisRTX?

Kitchen Set:
https://openusd.org/release/dl_kitchen_set.html

ANARI: Commit 1a579bb0
VisRTX: Commit 0fc504a

Other Doubt:
Does the current project support MDL materials?

Look forward to your reply, thank you.

[tarcila]

Hello @Robin-Wong,

Can you give more details about how you did open the Kitchen_set scene? Is it using a custom application, using tsdViewer from the VisRTX repository, something else?

The warning that you did screenshot is harmless and should actually be removed, nothing to worry about.

As for MDL support, there is an unofficial and very experimental VisRTX specific extension. The extension is undocumented on purpose, so expect things to possibly be brittle.

[Robin-Wong]

Hello, I use OpenUSD (via hdAnari plugin found in the ANARI-SDK) and usdview to load "Kitchen_set/Kitchen_set.usd";

For now, I found I can change this code for open Kitchen_set properly:

// Add anari::Material material_{nullptr}; for class HdAnariGeometry in geometry.h
#if 0 // Avoid using the same default material for all meshes
mainGeomInfo.material = renderParam->GetDefaultMaterial();
mainGeomInfo.primvarBinding = renderParam->GetDefaultPrimvarBinding();
#else
if (!material_)
{
material_ = anari::newObjectanari::Material(device_, "matte");
anari::setParameter(device_, material_, "alphaMode", "opaque");
anari::setParameter(device_, material_, "color", renderParam->GetDefaultPrimvarBinding().at(HdTokens->displayColor).GetText());
anari::commitParameters(device_, material_);
}
mainGeomInfo.material = material_;
mainGeomInfo.primvarBinding = renderParam->GetDefaultPrimvarBinding();
mainGeomInfo.primvarBinding.emplace(HdTokens->displayColor, "color");
#endif

But I'm not sure if this modification is reasonable.

Thank you!