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sampler2D tex : register(s0);
float4 blurcol : register(c10);
float4 main(in float2 texcoord : TEXCOORD0) : COLOR0
{
float a = blurcol.a;
float4 dst = tex2D(tex, texcoord.xy);
float4 prev = dst;
for(int i = 0; i < 5; i++){
float4 tmp = dst*(1-a) + prev*blurcol*a;
prev = saturate(tmp);
}
prev.a = 1.0f;
return prev;
}
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