X3D version 4.0 was approved by Web3D Consortium and ISO in 2023.[/X3D, diagnostic]
X3D version 4.0 offers many new features including interoperability with HTML5, glTF
2.0 Physically Based Rendering (PBR), and Web Audio API.[/X3D, diagnostic]
X3D/head/meta title (i.e. filename 'MyBounce.x3d') is expected at end of identifier
(url) value [/X3D/head, warning]
It is good practice to identify editor(s) used, for example <meta name='generator'
content='X3D-Edit, https://savage.nps.edu/X3D-Edit'/> [/X3D/head, info]
<Script DEF='Bounce2'> <field name='translation_changed' accessType='outputOnly'/>
does not send output event via assignment statement translation_changed=___; [/X3D/Scene/Script/field[2], warning]