void grid(int dim;vector p,color){
    vector pos,uv;
    int pt,prim;
    for (int i;i<dim*dim;i++){
        pos = set(i%dim,i/dim)/(dim-1);
        uv = pos;
        pos += p;
        pt = addpoint(0,pos);
        if(uv.x<1 && uv.y<1)
        prim = addprim(0,"poly",array(pt,pt+dim,pt+dim+1,pt+1));
        setprimattrib (0,"Cd",prim,color);
        }
        
  }   
  
int  main_dim = 10;
int dim;


int n = pow (main_dim,2);
vector p,uv;
float mask;
for(int i;i<n;i++){
    p = set(i%main_dim,i/main_dim);
    uv = p/(main_dim-1);
    mask = noise(uv*20.0+@Time);
    dim=int(20 *mask);+2;
    grid(dim,p,1);
    }

i@dim = 1000*@area + 2;
int n = pow(@dim,2);
int pt;

vector uv,pos;
for ( int i ;i < n;i++){
    uv = set(i%i@dim,i/i@dim,0)/(i@dim-1);
    pos = primuv(0,"P",@primnum,uv);
    pt = addpoint(0,pos);
    if(uv.x<1 && uv.y<1)
        addprim(0,"poly",array(pt,pt+@dim,pt+@dim+1,pt+1));
        }

        removeprim(0,@primnum,1);