Function postlightarea

source/src/worldlight.cpp:147–163

}

void postlightarea(const block &a)    // median filter, smooths out random noise in light and makes it more mipable
{
    int ia = (a.xs + 1) >> 1, ib = a.xs - ia;;
    for(int y = a.ys - 1; y >= 0; y -= 2)
    {
        sqr *s = S(a.x,y+a.y);
        postlightarealine(s, ia);
        postlightarealine(s + 1, ib);
    }
    for(int y = a.ys - 2; y >= 0; y -= 2)
    {
        sqr *s = S(a.x,y+a.y);
        postlightarealine(s, ia);
        postlightarealine(s + 1, ib);
    }
    remip(a);
}

int lastcalclight = 0;