Would that not be turning Wysiwyg into another product then? I could see a export stream to fit into a VR world outside of Wyg, but to have streaming input camera's feels like it be retargeting what Wysiwyg is, A lighting design and render app. I rather have focus on improving the CAD system and rendering abilities such as deeper texture formats and greater graphical overhead. If you like to have live camera's why not use a Media server capture and layer it into Wyg via a screen mode (chroma keying) recently added in R47?