I'm shooting a warehouse interior day for night on a music video and want to try gelling or papering windows warmer for a stylized look to suggest sodium vapor coming from outside. Tenting and lighting isn't really in the budget. Anyone have any luck with a material that looks good on windows DFN? I'm pretty sure a straight CTS or CTO gel on the windows won't give me the the contrast to suggest a night exterior. Maybe something like unbleached waxed paper would work?