Use logging!

src/charles.cc

@@ -9,6 +9,7 @@
 #include <unistd.h>
 
 #include "basics.h"
+#include "log.hh"
 #include "light.h"
 #include "material.h"
 #include "object_sphere.h"
@@ -34,6 +35,8 @@ main(int argc,
 {
     Scene scene;
 
+    charles::log::Log::Init("charles.log");
+
     scene.get_ambient().set_intensity(1.0);
 
 #if 0
@@ -108,5 +111,7 @@ main(int argc,
     PNGWriter writer;
     scene.write(writer, outfile);
 
+    charles::log::Log::Close();
+
     return 0;
 }