Ask HN: What I need to know before developing a VR application

Hi all, sorry if this is already asked, I'm really interested in using VR/AR to design things. What is the needed knowledge pool of VR coding skills I need before I or perhaps my future team can start developing applications for: manipulating objects in 3D, doing calculations based upon built models, extracting all kind of output documents, reports, BOMs, tech data sheets etc. from VR project? The business I'm aiming at is electrical systems design for power plants. I design other plants too, but thermal powerplants are most complex in my scope of work. I see how VR would be helpful and made my and other's designers lives easier and more efficient. For coding knowledge consider me tabula rasa although I have beginners understanding of several industrial automation systems. Thank you.