// Each #kernel tells which function to compile; you can have many kernels
#pragma kernel CSMain

// Create a RenderTexture with enableRandomWrite flag and set it
// with cs.SetTexture
RWTexture2D<float4> Result;

//RWStructuredBuffer<float3> Color;
RWStructuredBuffer<int> Full;

int limit;

[numthreads(8,8,1)]
void CSMain (uint3 id : SV_DispatchThreadID)
{
    if(max(max(Result[id.xy].r,Result[id.xy].g),Result[id.xy].b)>0.01)
    {
        InterlockedAdd(Full[0],1);
    }
}