From cdb9598faaf7a642bc69d27d8cf01e1fa423d448 Mon Sep 17 00:00:00 2001
From: Lars Brubaker <larsbrubaker@gmail.com>
Date: Mon, 20 Nov 2017 13:29:01 -0800
Subject: [PATCH] improved color delegate for mesh

---
 PartPreviewWindow/View3D/View3DWidget.cs | 10 ++--------
 Submodules/agg-sharp                     |  2 +-
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/PartPreviewWindow/View3D/View3DWidget.cs b/PartPreviewWindow/View3D/View3DWidget.cs
index 8f6157017..b2d24c733 100644
--- a/PartPreviewWindow/View3D/View3DWidget.cs
+++ b/PartPreviewWindow/View3D/View3DWidget.cs
@@ -2211,9 +2211,8 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 					// change the color to be the right thing
 					GLMeshTrianglePlugin.Get(
 						meshRenderData.Mesh, 
-						(faceEdge) =>
+						(normal) =>
 						{
-							Vector3 normal = faceEdge.ContainingFace.Normal;
 							normal = Vector3.TransformVector(normal, meshRenderData.WorldMatrix()).GetNormal();
 
 							double startColor = 223.0 / 360.0;
@@ -2226,12 +2225,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 								color = ColorF.FromHSL(startColor - delta * normal.Z, .99, .49).ToColor();
 							}
 
-							return new VertexColorData
-							{
-								red = color.red,
-								green = color.green,
-								blue = color.blue
-							};
+							return color;
 						});
 				}
 			});
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 6d7b1af60..e6da5897e 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 6d7b1af6000c63b09302be70cd9757de7eff2f57
+Subproject commit e6da5897ea3f55b60f74281e440ad959a3d86166