diff --git a/libs/gfx/include/psemek/gfx/armature.hpp b/libs/gfx/include/psemek/gfx/armature.hpp
index 1261da40..f869d03e 100644
--- a/libs/gfx/include/psemek/gfx/armature.hpp
+++ b/libs/gfx/include/psemek/gfx/armature.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <psemek/geom/vector.hpp>
+#include <psemek/geom/point.hpp>
 #include <psemek/geom/quaternion.hpp>
 #include <psemek/geom/matrix.hpp>
 #include <psemek/geom/affine_transform.hpp>
@@ -84,6 +85,18 @@ namespace psemek::gfx
 		return {geom::slerp(m1.rotation, m2.rotation, t), std::exp(geom::lerp(std::log(m1.scale), std::log(m2.scale), t)), geom::lerp(m1.translation, m2.translation, t)};
 	}
 
+	template <typename T>
+	geom::vector<T, 3> operator * (bone_transform<T> const & m, geom::vector<T, 3> const & v)
+	{
+		return m.translation + m.scale * geom::rotate(m.rotation, v);
+	}
+
+	template <typename T>
+	geom::point<T, 3> operator * (bone_transform<T> const & m, geom::point<T, 3> const & p)
+	{
+		return p.zero() + m * (p - p.zero());
+	}
+
 	template <typename T>
 	using pose = std::vector<bone_transform<T>>;