How to give air a texture? [closed]

Hello i've been trying to search for a tutorial or anything about adding air a texture. I'm currently using Minecraft Windows 10 1.5.2. I would also like to know if it's possible to add a static semi-transparent image on the first player perspective. I'm trying to achieve something like this:

You can't.

Air is not really a block, it's not rendered on its own. It's just the absence of blocks.

Maybe you want to retexture and remodel signs or other blocks without a collision instead. I don't know how that would be similar to your image, but it should do what you asked for.

If you want to display additional information to the player, maybe you want to look into the commands title (archive) or scoreboard objectives setdisplay (archive) instead. For something more fancy, SimplySarc got creative.