From 0051b76b9bbba8e9d9e1722be0f64a9370148e11 Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Tue, 19 Feb 2013 01:19:31 +0100
Subject: [PATCH] Improved Vector4::Normalize

Fixed length output


Former-commit-id: 2ff9aeca4e125965251187a1b7e2a4c6e0c08e5a
---
 include/Nazara/Math/Vector4.inl | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/Nazara/Math/Vector4.inl b/include/Nazara/Math/Vector4.inl
index 4c65d6f60..6d95accfc 100644
--- a/include/Nazara/Math/Vector4.inl
+++ b/include/Nazara/Math/Vector4.inl
@@ -130,15 +130,16 @@ NzVector4<T>& NzVector4<T>::Minimize(const NzVector4& vec)
 template<typename T>
 NzVector4<T>& NzVector4<T>::Normalize(T* length)
 {
-	x /= w;
-	y /= w;
-	z /= w;
-
-	w = F(1.0);
+	T invLength = F(1.0)/w;
+	x *= invLength; // Attention, briser cette logique casserait Frustum::Extract
+	y *= invLength;
+	z *= invLength;
 
 	if (length)
 		*length = w;
 
+	w = F(1.0);
+
 	return *this;
 }