half3 do_wind(half3 vertex_xyz, half2 color, half _WaveFreq, half _WaveHeight){
				half phase_slow = _Time * _WaveFreq;
	            half phase_med = _Time * 12 * _WaveFreq;
	           
	            half offset = (vertex_xyz.x + (vertex_xyz.z * 12)) * 2500;
	            offset = mul(unity_WorldToObject, offset);
	            half sin1 = sin(phase_slow + offset);
	            half sin2 = sin(phase_med + offset);          
	 
	            half sin_combined = dot(sin1, sin2 * 2);        
	           
	            half wind_x =  sin_combined * _WaveHeight * 0.1;
	            half wind_z = sin_combined * _WaveHeight * 0.1;
	            half3 wind_xyz = half3(wind_x, 0, wind_z);
	            //wind_xyz = wind_xyz * pow(uv.y, 2);    // using UV to mask wind effect  
	            wind_xyz = wind_xyz * pow(color.r, 2);      
	            wind_xyz = mul(unity_WorldToObject, half4(wind_xyz, 0.0));  


	           // o.lightnormal = mul(_globeLightRotation, float4(o.normal.xyz, 0.0));


				return wind_xyz;
			}


 half3 wind_simplified(half3 vertex_xyz, half4 color, half _WaveFreq, half _WaveHeight, half _WaveScale){
				half phase_slow = _Time * _WaveFreq;
	            half phase_med = _Time * 3 * _WaveFreq;
	            half phase_fast = _Time * 5 * _WaveFreq;
	           
	            half offset = (vertex_xyz.x + (vertex_xyz.z * _WaveScale)) * _WaveScale;
	            half offset2 = (vertex_xyz.x + (vertex_xyz.z * _WaveScale * 3)) * _WaveScale * 3;
	            half offset3 = (vertex_xyz.x + (vertex_xyz.z * _WaveScale * 5)) * _WaveScale * 5;

	         
	            half sin1 = sin(phase_slow + offset);
	            half sin2 = sin(phase_med + offset2);  
	            half sin3 = sin(phase_fast + offset3);        
	 
	            half sin_combined = (sin1 * 4) + sin2 + (sin3 * 0.5) ;


	           
	            half wind_factor =  sin_combined * _WaveHeight * 0.1;
	            wind_factor = wind_factor * color.r;
	            half3 wind_xyz = half3(wind_factor, wind_factor * 0.2, wind_factor);


	          	//wind_xyz = wind_xyz * pow(color.r, 2);
	            wind_xyz = mul(unity_WorldToObject, half4(wind_xyz, 0.0)); 

				return wind_xyz;
		}