diff --git a/engine/inc/renderer/3d/bbox/bbox.hpp b/engine/inc/renderer/3d/bbox/bbox.hpp
index eb5e908..7fe5f6a 100644
--- a/engine/inc/renderer/3d/bbox/bbox.hpp
+++ b/engine/inc/renderer/3d/bbox/bbox.hpp
@@ -25,37 +25,46 @@ class BBox : public CoreBBox {
   explicit BBox(const BBox& t_bbox, const M4x4& t_matrix);
   explicit BBox(const BBox& t_bbox);
   explicit BBox(Vec4* t_vertices);
-  const float& getHeight() { return _height; }
-  const float& getDepth() { return _depth; }
-  const float& getWidth() { return _width; }
+
+  const float& getHeight() const { return _height; }
+  const float& getDepth() const { return _depth; }
+  const float& getWidth() const { return _width; }
+
   /** @returns the vector directly in middle of the bounding box. */
-  const Vec4& getCenter() { return _centerVector; }
+  const Vec4& getCenter() const { return _centerVector; }
+
   /** @returns the front face (further on z-axis) */
-  const BBoxFace& getFrontFace() { return _frontFace; }
+  const BBoxFace& getFrontFace() const { return _frontFace; }
+
   /** @returns the back face (nearer on z-axis) */
-  const BBoxFace& getBackFace() { return _backFace; }
+  const BBoxFace& getBackFace() const { return _backFace; }
+
   /** @returns the left face (further on x-axis) */
-  const BBoxFace& getLeftFace() { return _leftFace; }
+  const BBoxFace& getLeftFace() const { return _leftFace; }
+
   /** @returns the right face (nearer on x-axis) */
-  const BBoxFace& getRightFace() { return _rightFace; }
+  const BBoxFace& getRightFace() const { return _rightFace; }
+
   /** @returns the top face (further on y-axis) */
-  const BBoxFace& getTopFace() { return _topFace; }
+  const BBoxFace& getTopFace() const { return _topFace; }
+
   /** @returns the bottom face (nearer on y-axis) */
-  const BBoxFace& getBottomFace() { return _bottomFace; }
+  const BBoxFace& getBottomFace() const { return _bottomFace; }
 
   /** @returns the lower (x, y, z) boundary of the box. */
-  Vec4 min();
+  Vec4 min() const;
   /** @returns the upper (x, y, z) boundary of the box. */
-  Vec4 max();
+  Vec4 max() const;
+
   /**
    * @param res_min Vec4 to store the min result
    * @param res_max Vec4 to store the min result
    * @brief Calc and stores the min and max points of box at a single loop
    * */
-  void getMinMax(Vec4* res_min, Vec4* res_max);
+  void getMinMax(Vec4* res_min, Vec4* res_max) const;
 
   /** Get new transformed BBox by model matrix */
-  BBox getTransformed(const M4x4& t_matrix);
+  BBox getTransformed(const M4x4& t_matrix) const;
 
  protected:
   float _height, _depth, _width;
diff --git a/engine/inc/renderer/core/3d/bbox/core_bbox.hpp b/engine/inc/renderer/core/3d/bbox/core_bbox.hpp
index 18dd95b..c30fdab 100644
--- a/engine/inc/renderer/core/3d/bbox/core_bbox.hpp
+++ b/engine/inc/renderer/core/3d/bbox/core_bbox.hpp
@@ -32,15 +32,22 @@ class CoreBBox {
 
   Vec4 vertices[8];
 
-  const Vec4& operator[](const u8& i) { return vertices[i]; }
+  const Vec4& operator[](const u8& i) const { return vertices[i]; }
 
-  const u8 getVertexCount() { return 8; }
+  const u8 getVertexCount() const { return 8; }
 
   void print() const;
   void print(const char* name) const;
   void print(const std::string& name) const { print(name.c_str()); }
   std::string getPrint(const char* name = nullptr) const;
 
+/**
+ * @brief Check if bbox is in view frustum
+ * 
+ * @param frustumPlanes Available in engine.renderer.core.renderer3D.frustumPlanes
+ * @param model Model matrix
+ * @param margins Optional margins
+ */
   CoreBBoxFrustum isInFrustum(const Plane* frustumPlanes, const M4x4& model,
                               const float* margins = nullptr) const;
 };
diff --git a/engine/src/renderer/3d/bbox/bbox.cpp b/engine/src/renderer/3d/bbox/bbox.cpp
index 8bb036c..5e4d9ee 100644
--- a/engine/src/renderer/3d/bbox/bbox.cpp
+++ b/engine/src/renderer/3d/bbox/bbox.cpp
@@ -37,7 +37,7 @@ BBox::BBox(const BBox& t_bbox, const M4x4& t_matrix) {
 
 BBox::BBox(Vec4* t_vertices) : CoreBBox(t_vertices) { setData(); }
 
-BBox BBox::getTransformed(const M4x4& t_matrix) {
+BBox BBox::getTransformed(const M4x4& t_matrix) const {
   return BBox(*this, t_matrix);
 }
 
@@ -64,7 +64,7 @@ void BBox::setData() {
   _bottomFace = BBoxFace(vertices[0], vertices[5], vertices[0].y);
 }
 
-Vec4 BBox::min() {
+Vec4 BBox::min() const {
   Vec4 temp, _min;
   u8 isInitialized = 0;
 
@@ -83,7 +83,7 @@ Vec4 BBox::min() {
   return _min;
 }
 
-Vec4 BBox::max() {
+Vec4 BBox::max() const {
   Vec4 temp, _max;
   u8 isInitialized = 0;
 
@@ -102,7 +102,7 @@ Vec4 BBox::max() {
   return _max;
 }
 
-void BBox::getMinMax(Vec4* res_min, Vec4* res_max) {
+void BBox::getMinMax(Vec4* res_min, Vec4* res_max) const {
   Vec4 temp = Vec4();
 
   u8 isInitialized = 0;