X3D version 4.0 was approved by Web3D Consortium and ISO in 2023. X3D version 4.0 offers many new features including interoperability with HTML5, glTF 2.0 Physically Based Rendering (PBR), and Web Audio API. <Text DEF='' string='"Node\"\"\""'/> has 5 quote marks with at least one escaped quote mark \" so double-check to ensure paired "quote marks" for each line are matched <Text DEF='' string='"Node2" "\\" "\\\\" "Node2"'/> has 8 quote marks with at least one escaped quote mark \" so double-check to ensure paired "quote marks" for each line are matched <Text DEF='' string='"Node3 \\\\ \\ " "Node3\"\"\""'/> has 7 quote marks with at least one escaped quote mark \" so double-check to ensure paired "quote marks" for each line are matched <Script/> must have DEF name in order to ROUTE events