I have placed an Exponential Height Fog component in my level. (This applies to just about any type of shader or post process effect.) If I switched to perspective, I can adjust it in real time. If I switch to front view, I must start the game to see the post process effect. This screen shot has heavy shaders and an Exponential Height Fog component. As you can see though, even with it checked in the list, it is full lit with none of the effect. Just thought I would let you know. I also don’t know if it matters or not, but that cloud is WAY back on the Y axis. If I start the game, it is in proper perspective. I figured that was an effect of locking the view to Front. If I switch to perspective, I can see real time differences in shaders.