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. <meta name='TODO' content='Schematron rules, backed up by initialize() checks'/> <Script DEF='CameraScript'> <field name='isActive' accessType='outputOnly'/> does not send output event via assignment statement isActive=___; <Script DEF='CameraShotScript'> <field name='isActive' accessType='outputOnly'/> does not send output event via assignment statement isActive=___; <Script DEF='CameraMovementScript'> <field name='isActive' accessType='outputOnly'/> does not send output event via assignment statement isActive=___; <Script DEF='OfflineRenderScript'> <field name='progress' accessType='outputOnly'/> does not send output event via assignment statement progress=___; <Script DEF='OfflineRenderScript'> <field name='renderCompleteTime' accessType='outputOnly'/> does not send output event via assignment statement renderCompleteTime=___;