From 2d7d38bc6d33fdd4407ec97211b1bcd853143225 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Mon, 25 Jan 2021 00:51:06 +0300
Subject: [PATCH] Add affine_transform::identity

---
 libs/geom/include/psemek/geom/affine_transform.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libs/geom/include/psemek/geom/affine_transform.hpp b/libs/geom/include/psemek/geom/affine_transform.hpp
index 2cff7be7..46252eb8 100644
--- a/libs/geom/include/psemek/geom/affine_transform.hpp
+++ b/libs/geom/include/psemek/geom/affine_transform.hpp
@@ -15,6 +15,7 @@ namespace psemek::geom
 		matrix<T, N, M + 1> m;
 
 		static affine_transform zero();
+		static affine_transform identity();
 
 		affine_transform();
 		affine_transform(matrix<T, N, M + 1> const & matrix);
@@ -36,6 +37,12 @@ namespace psemek::geom
 		return affine_transform<T, N, M>{matrix<T, N, M + 1>::zero()};
 	}
 
+	template <typename T, std::size_t N, std::size_t M>
+	affine_transform<T, N, M> affine_transform<T, N, M>::identity()
+	{
+		return affine_transform<T, N, M>{matrix<T, N, M + 1>::identity()};
+	}
+
 	template <typename T, std::size_t N, std::size_t M>
 	affine_transform<T, N, M>::affine_transform()
 		: m{m.zero()}