#declare Start = 0;

#local N = N + 1;

#macro MyObject =  ...;

#default{ finish{ ambient 0.1 diffuse 0.9 }}

#if ( Expression ) ... #end

#if(N<10) ... #else ... #end

#switch(expr) #case(expr) ... #break #else ... #end

#switch(N) #case(1) ... #break #case(2) ... #break #else ... #end

#ifdef(MyColor) ... #else ... #end

#ifdef(R) ... #else ... #end

#undef MyColor

#ifndef(Wall_Color) #declare Wall_Color= ... #end

#debug "..."

#version 3.7;