diff --git a/experimental/tinyobj_loader_opt.h b/experimental/tinyobj_loader_opt.h
index 680514d..db9319e 100644
--- a/experimental/tinyobj_loader_opt.h
+++ b/experimental/tinyobj_loader_opt.h
@@ -951,14 +951,12 @@ bool parseObj(attrib_t *attrib, std::vector<shape_t> *shapes, const char *buf,
 
 static bool parseLine(Command *command, const char *p, size_t p_len,
                       bool triangulate = true) {
-  char linebuf[4096];
-  assert(p_len < 4095);
-  // StackVector<char, 256> linebuf;
-  // linebuf->resize(p_len + 1);
-  memcpy(&linebuf, p, p_len);
-  linebuf[p_len] = '\0';
+  //char linebuf[4096];
+  //assert(p_len < 4095);
+  //memcpy(linebuf, p, p_len);
+  //linebuf[p_len] = '\0';
 
-  const char *token = linebuf;
+  const char *token = p;
 
   command->type = COMMAND_EMPTY;
 
@@ -1078,9 +1076,10 @@ static bool parseLine(Command *command, const char *p, size_t p_len,
     // namebuf + strlen(namebuf));
     // command->material_name->push_back('\0');
     skip_space(&token);
-    command->material_name = p + (token - linebuf);
+    command->material_name = token; // p + (token - linebuf);
     command->material_name_len =
-        length_until_newline(token, p_len - (token - linebuf)) + 1;
+        length_until_newline(token, p_len - (token - p)) + 1;
+        //length_until_newline(token, p_len - (token - linebuf)) + 1;
     command->type = COMMAND_USEMTL;
 
     return true;
@@ -1092,9 +1091,9 @@ static bool parseLine(Command *command, const char *p, size_t p_len,
     token += 7;
 
     skip_space(&token);
-    command->mtllib_name = p + (token - linebuf);
+    command->mtllib_name = token; //p + (token - linebuf);
     command->mtllib_name_len =
-        length_until_newline(token, p_len - (token - linebuf)) + 1;
+        length_until_newline(token, p_len - (token - p)) + 1;
     command->type = COMMAND_MTLLIB;
 
     return true;
@@ -1105,9 +1104,9 @@ static bool parseLine(Command *command, const char *p, size_t p_len,
     // @todo { multiple group name. }
     token += 2;
 
-    command->group_name = p + (token - linebuf);
+    command->group_name = token;
     command->group_name_len =
-        length_until_newline(token, p_len - (token - linebuf)) + 1;
+        length_until_newline(token, p_len - (token - p)) + 1;
     command->type = COMMAND_G;
 
     return true;
@@ -1118,9 +1117,9 @@ static bool parseLine(Command *command, const char *p, size_t p_len,
     // @todo { multiple object name? }
     token += 2;
 
-    command->object_name = p + (token - linebuf);
+    command->object_name = token;
     command->object_name_len =
-        length_until_newline(token, p_len - (token - linebuf)) + 1;
+        length_until_newline(token, p_len - (token - p)) + 1;
     command->type = COMMAND_O;
 
     return true;
diff --git a/experimental/viewer.cc b/experimental/viewer.cc
index 3c32404..d4c9d29 100644
--- a/experimental/viewer.cc
+++ b/experimental/viewer.cc
@@ -214,9 +214,8 @@ const char* get_file_data(size_t *len, const char* filename)
 }
 
 
-bool LoadObjAndConvert(float bmin[3], float bmax[3], const char* filename, int num_threads)
+bool LoadObjAndConvert(float bmin[3], float bmax[3], const char* filename, int num_threads, bool verbose)
 {
-#if 1
   tinyobj_opt::attrib_t attrib;
   std::vector<tinyobj_opt::shape_t> shapes;
 
@@ -229,6 +228,7 @@ bool LoadObjAndConvert(float bmin[3], float bmax[3], const char* filename, int n
   printf("filesize: %d\n", (int)data_len);
   tinyobj_opt::LoadOption option;
   option.req_num_threads = num_threads;
+  option.verbose = verbose;
   bool ret = parseObj(&attrib, &shapes, data, data_len, option);
 
   bmin[0] = bmin[1] = bmin[2] = std::numeric_limits<float>::max();
@@ -330,9 +330,6 @@ bool LoadObjAndConvert(float bmin[3], float bmax[3], const char* filename, int n
   printf("bmax = %f, %f, %f\n", bmax[0], bmax[1], bmax[2]);
 
   return true;
-#else
-  return false;
-#endif
 }
 
 void reshapeFunc(GLFWwindow* window, int w, int h)
@@ -499,12 +496,14 @@ static void Init() {
 int main(int argc, char **argv)
 {
   if (argc < 2) {
-    std::cout << "Needs input.obj\n" << std::endl;
+    std::cout << "view input.obj <num_threads> <benchark_only> <verbose>" << std::endl;
     return 0;
   }
 
   bool benchmark_only = false;
   int num_threads = -1;
+  bool verbose = false;
+
   if (argc > 2) {
     num_threads = atoi(argv[2]);
   }
@@ -513,6 +512,10 @@ int main(int argc, char **argv)
     benchmark_only = true;
   }
 
+  if (argc > 4) {
+    verbose = true;
+  }
+
   if (benchmark_only) {
 
     tinyobj_opt::attrib_t attrib;
@@ -527,6 +530,8 @@ int main(int argc, char **argv)
     printf("filesize: %d\n", (int)data_len);
     tinyobj_opt::LoadOption option;
     option.req_num_threads = num_threads;
+    option.verbose = true;
+
     bool ret = parseObj(&attrib, &shapes, data, data_len, option);
 
     return ret;
@@ -569,7 +574,7 @@ int main(int argc, char **argv)
   reshapeFunc(window, width, height);
 
   float bmin[3], bmax[3];
-  if (false == LoadObjAndConvert(bmin, bmax, argv[1], num_threads)) {
+  if (false == LoadObjAndConvert(bmin, bmax, argv[1], num_threads, verbose)) {
     printf("failed to load & conv\n");
     return -1;
   }