Merge branch 'blender-v3.2-release'

1 files changed, 14 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_vector.hh b/source/blender/blenlib/BLI_math_vector.hh
index b9f0939674e..7983bbccb35 100644
--- a/source/blender/blenlib/BLI_math_vector.hh
+++ b/source/blender/blenlib/BLI_math_vector.hh
@@ -49,6 +49,20 @@ template<typename T, int Size> inline bool is_any_zero(const vec_base<T, Size> &
   return false;
 }
 
+template<typename T, int Size>
+inline bool almost_equal_relative(const vec_base<T, Size> &a,
+                                  const vec_base<T, Size> &b,
+                                  const T &epsilon_factor)
+{
+  for (int i = 0; i < Size; i++) {
+    const float epsilon = epsilon_factor * math::abs(a[i]);
+    if (math::distance(a[i], b[i]) > epsilon) {
+      return false;
+    }
+  }
+  return true;
+}
+
 template<typename T, int Size> inline vec_base<T, Size> abs(const vec_base<T, Size> &a)
 {
   vec_base<T, Size> result;