MNCACompute.compute

[numthreads(1, 1, 1)]
void StepKernel(uint3 id: SV_DispatchThreadID)
{
   	// READ STATE
    uint state = readTex[id.xy];

    uint count0 = 0;
    uint count1 = 0;
    uint count2 = 0;
    uint count3 = 0;
    
    //uint next = state + 1 == nstates ? 0 : state + 1; // (preserves higher states)

    for (int i=0; i < 128; i++){

        uint s = readTex.SampleLevel(sampler_readTex, (id.xy + neighborhood0[i]) / (float)rez, 0);
        count0 += (uint) (s==1);

        s = readTex.SampleLevel(sampler_readTex, (id.xy + neighborhood1[i]) / (float)rez, 0);
        count1 += (uint) (s==1);

        s = readTex.SampleLevel(sampler_readTex, (id.xy + neighborhood2[i]) / (float)rez, 0);    
        count2 += (uint) (s==1);

        s = readTex.SampleLevel(sampler_readTex, (id.xy + neighborhood3[i]) / (float)rez, 0);    
        count3 += (uint) (s==1);

    }

    // RULES
    if (count0 <= 17) { state = 0; }
    if (count0 >= 40 && count0 <= 42) { state=1; }    
    
    if (count1 >= 10 && count1 <= 13) { state=1; }

    if (count2 >= 9 && count2 <= 21) { state = 0; }

    if (count3 >= 78 && count3 <= 89) { state = 0; }
    if (count3 >= 108) { state = 0; }


    // WRITE STATE
    writeTex[id.xy] = state;

    Render(id, state, count0);

}