Shore detection for water surfaces

These are the foam calculations. The top texture is a 4x4 pixel texture which is white in the center and has a 1 pixel black border on the outer edge. This is used as a mask to prevent the inside texture from leaking out into the distance. The texture below it is a special mask along the shoreline that fades from black (all areas without any shoreline foam) to gray (the shoreline) to white (the point where the shore stops crashing). The texture at the bottom is a black and white noise map. I use a material parameter collection to control the ocean across multiple materials (the landscape and the seawater) at the same time. The textures are planar mapped from the top, using a custom world location and set size for alignment. The waves themselves are generated by sine waves.

Aside from using a texture mask, there really is no other option to generating a nice shore wave. So the texture capture and alignment has to be absolutely perfect.


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