From 65ecbe0d5c6a8ae3eb30d07e490e2abbc4dc5b07 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Sun, 19 Dec 2010 00:11:37 -0500
Subject: [PATCH] bugfix in Engine::Quad() constructor -- call dCROSS() before
 dNormalize3()

---
 Engine.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Engine.cc b/Engine.cc
index b13b478..032da9f 100644
--- a/Engine.cc
+++ b/Engine.cc
@@ -1339,6 +1339,7 @@ Engine::Quad::Quad(float cx, float cy, float cz,
     m_v2[0] = v2x;
     m_v2[1] = v2y;
     m_v2[2] = v2z;
+    dCROSS(m_normal, =, m_v1, m_v2);
     dNormalize3(m_normal);
     m_dl = 0;
     m_visible = true;
@@ -1346,7 +1347,6 @@ Engine::Quad::Quad(float cx, float cy, float cz,
     m_texture = 0;
     m_enable_blending = false;
     m_color[0] = m_color[1] = m_color[2] = m_color[3] = 1.0f;
-    dCROSS(m_normal, =, m_v1, m_v2);
     render();
 }