Surface, foam, spray and render tests

Based on feedback to look at scale and to use more references I made some improvements on the overall ocean surface using the following techniques: 

1) Wave instancing: created a separate ocean spectrum node with random seed and instanced it to scattered particles in the distance with a mask for the bounding box area
2) Ocean Waves: created a set of "tidal" waves instanced to a plane and animated across the infinite spectrum and flip tank.   
3) Wave mask: painted a mask attached to a "calmed" ocean spectrum node to create some flatter areas in the ocean   

Latest foam version as of 9/25/2018.  Varied the pscale of the source particles (post process) using a simple vex snippet  @pscale = fit01(rand(@id), 0.055, 0.0035);  Dialed down the density on both the point replicate and the foam shader.

​Ocean Surface with improvements and new HDRI light from Tybee Island (SUNSET)

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Foam test with spray

​Overhead low density foam

Higher density foam test with forced matte objects