diff --git a/Disp/DemoDrawing.cs b/Disp/DemoDrawing.cs
index 315ad37..14bb496 100644
--- a/Disp/DemoDrawing.cs
+++ b/Disp/DemoDrawing.cs
@@ -132,9 +132,9 @@ namespace Sample.Disp
 					vs[k++] = rgb.x;
 					vs[k++] = rgb.y;
 					vs[k++] = rgb.z;
-					vs[k++] = tri.ps[j].x;
-					vs[k++] = tri.ps[j].y;
-					vs[k++] = tri.ps[j].z;
+					vs[k++] = tri[j].x;
+					vs[k++] = tri[j].y;
+					vs[k++] = tri[j].z;
 				}
 			}
 			//V means Vertex; C means Color
@@ -157,9 +157,9 @@ namespace Sample.Disp
 					vs[k++] = nn.x;
 					vs[k++] = nn.y;
 					vs[k++] = nn.z;
-					vs[k++] = tri.ps[j].x;
-					vs[k++] = tri.ps[j].y;
-					vs[k++] = tri.ps[j].z;
+					vs[k++] = tri[j].x;
+					vs[k++] = tri[j].y;
+					vs[k++] = tri[j].z;
 				}
 			}
 			//V means Vertex; C means Color; N means Normal