<a href="index.html"><img border="0" alt="Virtual Reality Modeling Language (VRML97)" title="Virtual Reality Modeling Language (VRML97)" src="vrml97-0.gif" width="470" height="85" align="middle"/></a> The VRML97 Specification was the second-generation predecessor specification that eventually led to the X3D Graphics International Standard, maintaining full compatibility with the X3D ClassicVRML Encoding. Many 3D graphics systems support the Virtual Reality Modeling Language (VRML97). These scenes support the <a href="https://www.web3d.org/documents/specifications/14772/V2.0/part1/examples.html" target="_blank">Examples</a> section of the <a href="https://www.web3d.org/documents/specifications/14772/V2.0" target="_blank"> VRML97 specification</a>. The baseline source kept under version control is in <code>.x3d</code> form, and the autogenerated products include versions using the VRML97 <code>.wrl</code> file extension. These examples are maintained for historic reasons and interoperability testing. Backwards compatibility of scenes remains a significant strength of the <a href="https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/Architecture.html" target="_blank">X3D specification</a>, which includes a fully interoperable <a href="http://new.web3d.org/files/specifications/19776-2/V3.3/Part02/X3D_ClassicVRML.html" target="_blank">ClassicVRML file encoding</a> as well as numerous <a href="https://www.web3d.org/x3d/content/examples/X3dResources.html#Conversions" target="_blank">conversion and translation tools</a>. Historic predecessor document references include the <a href="VrmlScript/vrmlscript.html" target="_blank">VRML Script Node Authoring Interface</a> proposal of 6 October 1996, and the <a href="VRML1.specification.txt" target="_blank">Virtual Reality Modeling Language (VRML) 1.0 Specification</a> of 26 May 1995.