XPU requires materialX shaders for rendering, instead of VEX based shaders (i.e. principled shader) …
set dark background in viewport (to make the volume easier to see) in …
in /mat context add Karma Material Builder node and dive inside delete the mtlxsurface …
loading USD files: change from obj to stage context (dropdown) add sublayer node file: …
go to /mat context add karma material builder node and dive inside delete input …
shadow catcher using background plate This workflow renders out one image containing alpha …
in karma shader add mtlx texture coordinates node signature: vector 2 add usd …
