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]
<meta name='warning' content='Not HAnim compliant'/> [/X3D/head/meta[6], diagnostic]
<Viewpoint DEF='Viewpoint1'/> centerOfRotation='0 0 0' has mismatched Y-value height
of 0 compared to position='2.293 1.66 0' which has Y-value height of 1.66[/X3D/Scene/Transform/Group/Viewpoint[1], warning]