From 3a0444dbea59e7cffa24d1b6f4699a2ecfb00016 Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Tue, 13 Dec 2005 23:18:20 +0000
Subject: [PATCH] better accuracy for normals
---
Graphics/Geom.cpp | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Graphics/Geom.cpp b/Graphics/Geom.cpp
index c71c841ec2..2444d3e817 100644
--- a/Graphics/Geom.cpp
+++ b/Graphics/Geom.cpp
@@ -1,4 +1,4 @@
-// $Id: Geom.cpp,v 1.94 2005-10-15 19:49:21 geuzaine Exp $
+// $Id: Geom.cpp,v 1.95 2005-12-13 23:18:20 geuzaine Exp $
//
// Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
//
@@ -589,9 +589,10 @@ void Draw_NonPlane_Surface(Surface * s)
}
if(CTX.geom.normals) {
+ const double eps = 1.e-3;
Vertex v1 = InterpolateSurface(s, 0.5, 0.5, 0, 0);
- Vertex v2 = InterpolateSurface(s, 0.6, 0.5, 0, 0);
- Vertex v3 = InterpolateSurface(s, 0.5, 0.6, 0, 0);
+ Vertex v2 = InterpolateSurface(s, 0.5 + eps, 0.5, 0, 0);
+ Vertex v3 = InterpolateSurface(s, 0.5, 0.5 + eps, 0, 0);
double n[3];
normal3points(v1.Pos.X, v1.Pos.Y, v1.Pos.Z,
v2.Pos.X, v2.Pos.Y, v2.Pos.Z,
--
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