   glass effect
  hi friendsI'm looking for a good and efficient way to simulate the appearance of glass in windows of houses and hotels in my game, I've an island sorrounded by water (I could finally make a great effect for ocean water!), what do you suggest? Cube map? sphere map? glass shaders? effects? I want it to look reflective and nice.thanks in advance   
  You can check out my normal map refraction code sample here, it simulates glass pretty well I think.-Chris   