From ede1203ff70b79d5f68b4bd0c31089bb8b87ae73 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 16 Dec 2014 15:28:40 +1100
Subject: [PATCH] matrix: add affine scale implementation

---
 matrix.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/matrix.cpp b/matrix.cpp
index 4f6403f9..07897f40 100644
--- a/matrix.cpp
+++ b/matrix.cpp
@@ -515,6 +515,20 @@ matrix<T>::translate (util::vector<3,T> v)
 }
 
 
+//-----------------------------------------------------------------------------
+template <typename T>
+matrix<T>
+matrix<T>::scale (util::vector<3,T> v)
+{
+    return { {
+        { v.x, 0.f, 0.f, 0.f },
+        { 0.f, v.y, 0.f, 0.f },
+        { 0.f, 0.f, v.z, 0.f },
+        { 0.f, 0.f, 0.f, 1.f }
+    } };
+}
+
+
 //-----------------------------------------------------------------------------
 template <typename T>
 const matrix<T>