base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0))
metalness = self.create_property("metalness", 0.0)
roughness = self.create_property("roughness", 0.5)
base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0))
metalness = self.create_property("metalness", 0.0)
roughness = self.create_property("roughness", 0.5)