Why can’t I adjust the index of refraction any lower then .25? I want to do heat distortion type effects as well as soundwave simulations, but I can’t until I can get very low refraction index numbers, also they have made materials now with negitive refraction indexes in the real world…
also why no index of refraction map? is it not possible?
“For visible light most transparent media have refractive indices between 1 and 2.” Try using 1.0025 or something, some thing small. But it has to be grater then one.
Here is different way of creating heat shimmer effect.