Lit Grass Shader
Unreal Engine 4 lit grass shader. Works well in shadowed and high-contrasted areas. Also plays nice with dynamic lighting (point or sky). I’m using an upward facing normal on the mesh to shade across the surface like a plane. (this gives an even lighting to the grass surface, even though the geometry is perpendicular to the light to some extent).
Next step is worldspace dynamic coloring and vertex wind effects!