1 files changed, 10 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_float4x4.hh b/source/blender/blenlib/BLI_float4x4.hh
index 1e9bd12b12b..ef83f9ffc19 100644
--- a/source/blender/blenlib/BLI_float4x4.hh
+++ b/source/blender/blenlib/BLI_float4x4.hh
@@ -108,6 +108,16 @@ struct float4x4 {
     interp_m4_m4m4(result, a.values, b.values, t);
     return result;
   }
+
+  uint32_t hash() const
+  {
+    uint32_t h = 435109;
+    for (uint i = 0; i < 16; i++) {
+      float value = ((const float *)this)[i];
+      h = h * 33 + (*(uint32_t *)&value);
+    }
+    return h;
+  }
 };
 
 }  // namespace blender