Learn X3D 

Integrate 3D content seamlessly into your Web page. No Plugins needed. 

X3D ISO specification has two widely used open source implementation X3DOM and X_ITE

ABOUT THE WEB3D CONSORTIUM

The Web3D Consortium develops and maintains X3D Standards. Web3D Consortium is an international, member-funded, industry consortium committed to the deployment of open, royalty-free standards that enable the communication of real-time 3D across application domains. The Consortium works closely with the ISO, OGC, HL7, KHRONOS and W3C standardization bodies for interoperability and convergence. Visit us at Web3D.org