From f2215d756427d530025f01a7c394c480b95a817f Mon Sep 17 00:00:00 2001
From: Weizhen Huang <weizhen@blender.org>
Date: Sat, 29 Jun 2024 07:56:46 +0200
Subject: [PATCH] Fix: `safe_normalize()` not defined for `float2` on Metal

---
 intern/cycles/util/math_float2.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/intern/cycles/util/math_float2.h b/intern/cycles/util/math_float2.h
index b81e0b70c3b..4c1f861e3b3 100644
--- a/intern/cycles/util/math_float2.h
+++ b/intern/cycles/util/math_float2.h
@@ -164,6 +164,12 @@ ccl_device_inline float len_squared(const float2 a)
   return dot(a, a);
 }
 
+ccl_device_inline float2 safe_normalize(const float2 a)
+{
+  float t = len(a);
+  return (t != 0.0f) ? a / t : a;
+}
+
 #if !defined(__KERNEL_METAL__)
 ccl_device_inline float distance(const float2 a, const float2 b)
 {
@@ -186,12 +192,6 @@ ccl_device_inline float2 normalize_len(const float2 a, ccl_private float *t)
   return a / (*t);
 }
 
-ccl_device_inline float2 safe_normalize(const float2 a)
-{
-  float t = len(a);
-  return (t != 0.0f) ? a / t : a;
-}
-
 ccl_device_inline float2 min(const float2 a, const float2 b)
 {
   return make_float2(min(a.x, b.x), min(a.y, b.y));