float3 gLensBlurV_ps (float2 iTexCoord : TEXCOORD0,
		uniform sampler RT : register (s0),
		uniform sampler focusMap : register(s1),
		uniform float viewport_height) : COLOR
{
	float focus = tex2D(focusMap, iTexCoord);
	float3 endColor = tex2D(RT, iTexCoord).rgb * weight[0];
	for (int i=1; i<6; i++)
	{
	  endColor += tex2D(RT, iTexCoord + float2(0.0, offset[i]*focus*3)/viewport_height).rgb * weight[i]*0.5f;
	  endColor += tex2D(RT, iTexCoord - float2(0.0, offset[i]*focus*3)/viewport_height).rgb * weight[i]*0.5f;
	  endColor += tex2D(RT, iTexCoord + float2(offset[i]*focus*3, 0.0)/viewport_width).rgb * weight[i]*0.5f;
	  endColor += tex2D(RT, iTexCoord - float2(offset[i]*focus*3, 0.0)/viewport_width).rgb * weight[i]*0.5f;
	}
	return endColor;
}