--- a/Renderer/Engine/SceneGraphRoot.cc	Tue Dec 13 19:01:32 2011 +0900
+++ b/Renderer/Engine/SceneGraphRoot.cc	Wed Dec 14 16:35:56 2011 +0900
@@ -278,8 +278,11 @@
 
 typedef struct source {
     char *id;
+    union {
+        float *array;
+        char *alias;
+    }u;
     int count;
-    float *array;
     struct source *next;
 } SOURCE;
 typedef SOURCE *SOURCE_P;
@@ -300,12 +303,53 @@
     list->end = src;
 }
 
+static int
+strcmp_a(const char *a, const char *b)
+{
+    while (*a && *a++ = *b++);
+    if (*a) return 0;
+    return a[-1] > b[-1] ? 1:-1;
+}
+
+static float
+get_point(char *id, int position, LIST_P list)
+{
+    SOURCE_P cur = list->first;
+    for (;cur ; cur=cur->next) {
+        if (!strcmp_a(id, cur->name)) {
+            if (list->count == 0) //alias
+                return get_point(list->.alias, position, list);
+            float *a = cur->u.array;
+            if (position <= list->count) {
+                return a[position];
+            }
+        }
+    }
+}
+
+static int polylist=0;
+static const char *polylist_normal=0;
+static const char *polylist_vertex=0;
+
+
 static void 
 xml_walk( SceneGraphRoot* self, xmlNodePtr cur, LIST_P list)
 {
 
+    int in_polylist=0;
     /*get float array.*/
     printf("name = %s, child:%s\n", (char *)cur->name, (char *)cur->children);
+
+    if (!xmlStrcmp(cur->name, (xmlChar*)"polylist")) {
+        polylist=1;
+        in_polylist=1;
+    }
+
+    if (polylist && !xmlStrcmp(cur->name, (xmlChar*)"input") {
+            char *semantic = (char*)xmlGetProp(cur, (xmlChar*)"semantic");
+            if (xmlStrcmp(semantic, (xmlChar*)"VERTEX")
+    }
+
     if (!xmlStrcmp(cur->name, (xmlChar*)"float_array")) {
 
         SOURCE_P src = (SOURCE_P)malloc(sizeof(SOURCE));
@@ -322,9 +366,6 @@
         //int count = atoi(get_property("count", cur));
 
         for (int i = 0; cont != NULL; i++) {
-
-            //cont = pickup_float(cont, src->array+1);
-            // ここ+1じゃなくて、+iじゃない？
             cont = pickup_float(cont, src->array+i);
         }
 
@@ -338,7 +379,35 @@
             printf("p:%s", p);
         }
         
+    } else if (!xmlStrcmp(cur->name, (xmlChar*)"vertices") {
+
+            char *pid = (char*)xmlGetProp(cur, (xmlChar*)"id");
+
+            if (!xmlStrcmp(cur->name, (xmlChar*)"p")) {
+                char *pcont = (char*)xmlNodeGetContent(cur);
+                float *p = malloc(sizeof(float)*sum); 
+
+                for (int i=0; contp != NULL; i++) {
+                    pcont = pickup_float(pcont, p+i);
+                }
+            }
+        }
+        
+        if (!xmlStrcmp(cur->name, (xmlChar*)"vcount")) {
+            int *vcount = malloc(sizeof(int)*count);
+        }
+
+        for (SOURCE *iliner = list->first; list->end != iliner; iliner = iliner->next) {
+            if (!strcmp_a(pid, iliner->id)) {
+                if (vcount == 4) {
+
+                } else if (vcount == 3) {
+
+                }
+            }
+        }
     }
+
     
     for (cur=cur->children; cur; cur=cur->next){
         xml_walk(self, cur, list);