USDZLoader: Switch to MeshPhysicalMaterial and add initial clearcoat/clearcoatRoughness/ior support #26713
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Description
Switches USDZLoader to MeshPhysicalMaterial and adds loading support for clearcoat/clearcoatRoughness.
These parameters are already exported by USDZExporter.
Some details seem to be wrong, but I currently suspect GLTFLoader not loading the clearcoat test file correctly in the first place (will report a separate issue).
USDZ loaded into Mac QuickLook
USDZ loaded into three.js
Test file: ClearCoatTest.zip
This contribution is funded by Needle