diff --git a/res/shader/gbuffer_debug.frag b/res/shader/gbuffer_debug.frag
index 03cab91c..4392a63d 100644
--- a/res/shader/gbuffer_debug.frag
+++ b/res/shader/gbuffer_debug.frag
@@ -25,7 +25,7 @@ layout(location = 0) out vec4 FragColor;
 
 void main()
 {
-    FragColor=vec4(normalize(FragmentTexCoord),0.0,1.0);
+    FragColor=vec4(normalize(FragmentPosition),0.0,1.0);
 /*    vec3 components[3];
     
     components[0]=texture(GB_Position,   FragmentTexCoord).xyz;
diff --git a/src/SceneGraph/InlineGeometry.cpp b/src/SceneGraph/InlineGeometry.cpp
index 22d3aa6a..cb124c9c 100644
--- a/src/SceneGraph/InlineGeometry.cpp
+++ b/src/SceneGraph/InlineGeometry.cpp
@@ -148,7 +148,7 @@ namespace hgl
             
             VB2f *vertex=gc.GetVertex();
 
-            vertex->WriteRectTriangleStrip(rci->scope);
+            vertex->WriteRectFan(rci->scope);
 
             return gc.Finish();
         }