The RT in Eternal is a joke, no idea why people are so gung ho about it when there are infinitely better examples of the tech if you want to push it forward (such as WD:L, particularly after it rains). It's very clear the game was authored without it in mind so that's nothing against it, it's just tacked on and therefore mostly a waste (though there's performance to spare, so no biggie). For every scene you want to show where it makes a difference I can pick you 10 where it won't, never mind counting it in motion, then you'll definitely be lost.