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]
Correct url for X3D file should appear in <meta name='identifier' content='https://someAddress/somePath/FileName.x3d'/>
[/X3D/head, warning]
Missing X3D scene description in meta tag, should appear as <meta name='description'
content='topic sentence plus good summary'/> [/X3D/head, info]
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]
<Sound DEF=''/> location='0 0 0' has height of sound ellipse centered on ground plane,
consider changing location
y-value to 1.6 in order to match typical avatar height (in meters) [/X3D/Scene/Sound, warning]
<AudioClip DEF='Click'/> url array address(es) missing online http/https references
(url='"../resources/chandubabamusic1.wav"') [/X3D/Scene/Sound/AudioClip, info]