{ "PBR param": { "BaseColorFactor": [ 1.0, 1.0, 1.0, 1.0 ], "EmissionFactor": [ 0.0, 0.0, 0.0 ], "MetallicFactor": 0.0, "RoughnessFactor": 0.19999998807907105, "AlphaMode": "OPAQUE" } }