I have been able to create Gerstner waves for world displacement and it looks great with wire frame but when switching to lit the waves aren’t noticeable at all. I assume this is due to no normal map. I have searched around and found a few answers but am still having trouble.
http://http.developer.nvidia.com/GPUGems/gpugems_ch01.html Is what I used originally to figure out how Gerstner waves worked and it spoke of normals but being new to all this I can’t seem to wrap my head around what I am supposed to do to calculate the normals from this. I had also read something about finite difference approximation as an alternative to what is written in the GPUGems article but wasn’t able to figure out how to apply that to this either.
I was hoping someone might have some specific information on how exactly to get normals from the Gerstner wave equation within Unreal Engine 4 or if there is some way to get the lighting to react to world displacement.
I hate asking for help with my first post to these forums but after searching around and attempting this for a week straight I am not sure what else to do. ^^;