How can I achieve a breaking waves in an Ocean shader?

I'm doing a small project that uses a top view from a beach and I'm trying to create an ocean shader that has breaking waves and foam on the shore like Sundog's Triton shader. As this is a small project and I wouldn't be using most of that software's features, I don't think it makes sense to just drop 400$ for just that feature. Any idea how I can achieve that effect with another shader or asset in the assetstore?

Found an article that could be interesting but I don't have the knowledge to translate this to a unity shader. http://habib.wikidot.com/ocean-shader-kri

Triton screens: ![alt text][1]![alt text][2] [1]: /storage/temp/52507-breaking-waves2.jpg [2]: /storage/temp/52508-breaking-waves.jpg