upgrade Filament to v1.41

ios/include/math/mat3.h

@@ -430,8 +430,21 @@ constexpr TQuaternion<T> TMat33<T>::packTangentFrame(const TMat33<T>& m, size_t
     return q;
 }
 
+
 }  // namespace details
 
+/**
+ * Pre-scale a matrix m by the inverse of the largest scale factor to avoid large post-transform
+ * magnitudes in the shader. This is useful for normal transformations, to avoid large
+ * post-transform magnitudes in the shader, especially in the fragment shader, where we use
+ * medium precision.
+ */
+template<typename T>
+constexpr details::TMat33<T> prescaleForNormals(const details::TMat33<T>& m) noexcept {
+    return m * details::TMat33<T>(
+                    1.0 / std::sqrt(max(float3{length2(m[0]), length2(m[1]), length2(m[2])})));
+}
+
 // ----------------------------------------------------------------------------------------
 
 typedef details::TMat33<double> mat3;