From 11c3c5e615e8715ef5d99fbcba5864d5d1036bf7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=91=D1=80=D0=B0=D0=BD=D0=B8=D0=BC=D0=B8=D1=80=20=D0=9A?=
 =?UTF-8?q?=D0=B0=D1=80=D0=B0=D1=9F=D0=B8=D1=9B?=
 <branimirkaradzic@gmail.com>
Date: Thu, 21 Oct 2021 19:39:46 -0700
Subject: [PATCH] Added Vec3 version of nms.

---
 include/bx/inline/math.inl | 10 ++++++++++
 include/bx/math.h          | 10 +++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/include/bx/inline/math.inl b/include/bx/inline/math.inl
index 6e7fec0..7e0ce57 100644
--- a/include/bx/inline/math.inl
+++ b/include/bx/inline/math.inl
@@ -592,6 +592,16 @@ namespace bx
 		return mul(_a, rcp(_b) );
 	}
 
+	inline BX_CONSTEXPR_FUNC Vec3 nms(const Vec3 _a, const float _b, const Vec3 _c)
+	{
+		return sub(_c, mul(_a, _b) );
+	}
+
+	inline BX_CONSTEXPR_FUNC Vec3 nms(const Vec3 _a, const Vec3 _b, const Vec3 _c)
+	{
+		return sub(_c, mul(_a, _b) );
+	}
+
 	inline BX_CONSTEXPR_FUNC Vec3 mad(const Vec3 _a, const float _b, const Vec3 _c)
 	{
 		return add(mul(_a, _b), _c);
diff --git a/include/bx/math.h b/include/bx/math.h
index 22b2609..cf96dd3 100644
--- a/include/bx/math.h
+++ b/include/bx/math.h
@@ -304,7 +304,7 @@ namespace bx
 	///
 	BX_CONSTEXPR_FUNC float fract(float _a);
 
-	/// Returns result of negated multiply-sub operation -(_a * _b - _c).
+	/// Returns result of negated multiply-sub operation -(_a * _b - _c) -> _c - _a * _b.
 	///
 	BX_CONSTEXPR_FUNC float nms(float _a, float _b, float _c);
 
@@ -407,6 +407,14 @@ namespace bx
 	///
 	BX_CONSTEXPR_FUNC Vec3 div(const Vec3 _a, float _b);
 
+	/// Returns result of negated multiply-sub operation -(_a * _b - _c) -> _c - _a * _b.
+	///
+	BX_CONSTEXPR_FUNC Vec3 nms(const Vec3 _a, const float _b, const Vec3 _c);
+
+	/// Returns result of negated multiply-sub operation -(_a * _b - _c) -> _c - _a * _b.
+	///
+	BX_CONSTEXPR_FUNC Vec3 nms(const Vec3 _a, const Vec3 _b, const Vec3 _c);
+
 	///
 	BX_CONSTEXPR_FUNC Vec3 mad(const Vec3 _a, const float _b, const Vec3 _c);