From 544692f96a09c1a76ff259bc1b5e91e9fef57bc4 Mon Sep 17 00:00:00 2001
From: iwubcode <iwubcode@users.noreply.github.com>
Date: Thu, 22 Oct 2020 22:48:22 -0500
Subject: [PATCH] Common: add convenience function to convert a Quaternion to a
 Matrix44

---
 Source/Core/Common/Matrix.cpp | 5 +++++
 Source/Core/Common/Matrix.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/Source/Core/Common/Matrix.cpp b/Source/Core/Common/Matrix.cpp
index 48adcba274..421dda28f5 100644
--- a/Source/Core/Common/Matrix.cpp
+++ b/Source/Core/Common/Matrix.cpp
@@ -269,6 +269,11 @@ Matrix44 Matrix44::FromMatrix33(const Matrix33& m33)
   return mtx;
 }
 
+Matrix44 Matrix44::FromQuaternion(const Quaternion& q)
+{
+  return FromMatrix33(Matrix33::FromQuaternion(q));
+}
+
 Matrix44 Matrix44::FromArray(const std::array<float, 16>& arr)
 {
   Matrix44 mtx;
diff --git a/Source/Core/Common/Matrix.h b/Source/Core/Common/Matrix.h
index 56840acab1..7c679a6229 100644
--- a/Source/Core/Common/Matrix.h
+++ b/Source/Core/Common/Matrix.h
@@ -402,6 +402,7 @@ class Matrix44
 public:
   static Matrix44 Identity();
   static Matrix44 FromMatrix33(const Matrix33& m33);
+  static Matrix44 FromQuaternion(const Quaternion& q);
   static Matrix44 FromArray(const std::array<float, 16>& arr);
 
   static Matrix44 Translate(const Vec3& vec);