Shader.Find( "Transparent/Bumped Diffuse" );

for (int i=0; i<4; i++) {

                    myWaterMesh[i]  = new Mesh();
            myWater[i]      = new GameObject();
            myWater[i].name = "Water";

            myWater[i].AddComponent<MeshFilter>  ().mesh = myWaterMesh[i];
            myWater[i].AddComponent<MeshRenderer>();

            myWaterMesh[i].vertices  = verticesWater[i];
            myWaterMesh[i].triangles = triangles;
            myWaterMesh[i].uv        = uv[i];
            myWaterMesh[i].RecalculateNormals();

            //Apply texture and transparent shader
            myWater[i].renderer.material.mainTexture = waterMap;

            Shader myShader = Shader.Find( "Transparent/Bumped Diffuse" );

            myWater[i].renderer.material.shader = myShader;

        }