immersive-web

i want to learn immersive-web, i think a little project to learn it, open the web browser get the cam (maybe with WebRTC or anything else), read a QrCode and place a .obj file above the QrCode, thats all (if possible work on this project on my machine with teamviwer, and explain each step) commented code also will be necessary, it will be my firsts steps with [login to view URL], if you got this knowledge and dont matter to share, i would love to learn. its not a real project, its a learning project. the project will be finished when read a image(the qrcode image) render the obj file( the file generated over others tools) get the webcan or the vr cam( important to get the webcam over ios and chrome) place the obj redered above the qrcode found on the screen