The problem here isn't creating environments based on other environments, it's that you can only really make an env so bright, this is with everything set to 0 1 0. You cannot increase R and B or real color from the environment will begin to leak back into the nvgs which is not desirable.
The main piece of tech I was trying to show off here is that, using selectiveghosting, we can make other lights in the environment brighter, which has the intended effect of making NVG relatively situational. We may be able to exploit this to make bright environments brighter based on some conditions, but you'd be contending with the 8 light limit