More Realistic Sniper Glint

I'm sure there is a thread discussing sniper glints, and I did see a post about reducing the glare, but I think it would add to the realism and strategic placement of the players if the glints only showed up when the scope is actually facing the sun and the sniper is exposed to sunlight. If the Sniper were to set up in shady hills or indoors, the position shouldn't be revealed due to a glint.

Also, providing scope attachments that further reduce the glint, like a mesh or something similar, could add to the stealth and immersion of that specific role.