diff --git a/src/libslic3r/AABBMesh.cpp b/src/libslic3r/AABBMesh.cpp
index a23fd69f68..be026f69d7 100644
--- a/src/libslic3r/AABBMesh.cpp
+++ b/src/libslic3r/AABBMesh.cpp
@@ -54,12 +54,12 @@ public:
                             int &                        i,
                             Eigen::Matrix<double, 1, 3> &closest)
     {
-        size_t idx_unsigned = 0;
-        Vec3d  closest_vec3d(closest);
-        double dist =
+        size_t idx_unsigned { 0 };
+        Vec3d  closest_vec3d { Vec3d::Zero() };
+        const double dist {
             AABBTreeIndirect::squared_distance_to_indexed_triangle_set(
                 its.vertices, its.indices, m_tree, point, idx_unsigned,
-                closest_vec3d);
+                closest_vec3d) };
         i       = int(idx_unsigned);
         closest = closest_vec3d;
         return dist;
@@ -311,10 +311,9 @@ AABBMesh::hit_result IndexedMesh::filter_hits(
 
 
 double AABBMesh::squared_distance(const Vec3d &p, int& i, Vec3d& c) const {
-    double sqdst = 0;
-    Eigen::Matrix<double, 1, 3> pp = p;
-    Eigen::Matrix<double, 1, 3> cc;
-    sqdst = m_aabb->squared_distance(*m_tm, pp, i, cc);
+    const Eigen::Matrix<double, 1, 3> pp { p };
+    Eigen::Matrix<double, 1, 3> cc { Vec3d::Zero() };
+    const double sqdst { m_aabb->squared_distance(*m_tm, pp, i, cc) };
     c = cc;
     return sqdst;
 }
diff --git a/src/libslic3r/Measure.hpp b/src/libslic3r/Measure.hpp
index 614b443131..2f378f5778 100644
--- a/src/libslic3r/Measure.hpp
+++ b/src/libslic3r/Measure.hpp
@@ -94,7 +94,7 @@ public:
 
     void* volume{nullptr};
     std::vector<int>*    plane_indices{nullptr};
-    Transform3d                  world_tran;
+    Transform3d                  world_tran = Transform3d::Identity();
     std::shared_ptr<std::vector<SurfaceFeature>> world_plane_features{nullptr};
     std::shared_ptr<SurfaceFeature> origin_surface_feature{nullptr};
 
diff --git a/src/libslic3r/SLA/IndexedMesh.cpp b/src/libslic3r/SLA/IndexedMesh.cpp
index b879e3f48b..65d9d90b34 100644
--- a/src/libslic3r/SLA/IndexedMesh.cpp
+++ b/src/libslic3r/SLA/IndexedMesh.cpp
@@ -56,12 +56,12 @@ public:
                             int &                        i,
                             Eigen::Matrix<double, 1, 3> &closest)
     {
-        size_t idx_unsigned = 0;
-        Vec3d  closest_vec3d(closest);
-        double dist =
+        size_t idx_unsigned { 0 };
+        Vec3d  closest_vec3d { Vec3d::Zero() };
+        const double dist {
             AABBTreeIndirect::squared_distance_to_indexed_triangle_set(
                 its.vertices, its.indices, m_tree, point, idx_unsigned,
-                closest_vec3d);
+                closest_vec3d) };
         i       = int(idx_unsigned);
         closest = closest_vec3d;
         return dist;
diff --git a/src/slic3r/Utils/RaycastManager.cpp b/src/slic3r/Utils/RaycastManager.cpp
index c51a19ebd9..62c7a922d7 100644
--- a/src/slic3r/Utils/RaycastManager.cpp
+++ b/src/slic3r/Utils/RaycastManager.cpp
@@ -107,7 +107,7 @@ std::optional<RaycastManager::Hit> RaycastManager::first_hit(const Vec3d& point,
     const AABBMesh *hit_mesh = nullptr;
     double hit_squared_distance = 0.;
     int hit_face = -1;
-    Vec3d hit_world;
+    Vec3d hit_world { Vec3d::Zero() };
     const Transform3d *hit_tramsformation = nullptr;
     const TrKey *hit_key = nullptr;