AcTools.Kn5File.Kn5.ExportCollada_NodeSub_BindMaterial C# (CSharp) Method

        private void ExportCollada_NodeSub_BindMaterial(XmlWriter xml, params uint[] materialId) {
            xml.WriteStartElement("bind_material");
            xml.WriteStartElement("technique_common");

            foreach (var materialName in materialId.Select(u => Materials.Values.ElementAt((int)u).Name)) {
                xml.WriteElement("instance_material",
                        "symbol", $"{materialName}-material",
                        "target", $"#{materialName}-material");
            }
            
            xml.WriteEndElement(); // technique_common
            xml.WriteEndElement(); // bind_material
        }