diff --git a/src/pe/raytracing/Raytracer.cpp b/src/pe/raytracing/Raytracer.cpp
index 4a88ff18381de87bf6d885415ca243b580728985..b7e5c06ef8f01791852af85d8c11ac5620d680a6 100644
--- a/src/pe/raytracing/Raytracer.cpp
+++ b/src/pe/raytracing/Raytracer.cpp
@@ -88,7 +88,9 @@ Raytracer::Raytracer(const shared_ptr<BlockStorage> & forest, BlockDataID storag
    
    setupView_();
 }
-   
+
+/*!\brief Utility function for setting up the view plane and calculating required variables.
+ */
 void Raytracer::setupView_() {
    // eye coordinate system setup
    n = (cameraPosition_ - lookAtPoint_).getNormalized();
diff --git a/src/pe/raytracing/Raytracer.h b/src/pe/raytracing/Raytracer.h
index 933c5d70b657b3c40dd93efd9c287dc2ccd3bb02..cfdb14b3d8459518b5e3729406b1ba7c2558fb13 100644
--- a/src/pe/raytracing/Raytracer.h
+++ b/src/pe/raytracing/Raytracer.h
@@ -32,26 +32,30 @@ namespace walberla {
 namespace pe {
 namespace raytracing {
 
+/*!\brief Contains information about a ray-body intersection.
+ */
 struct BodyIntersectionInfo {
-   size_t imageX; // viewing plane pixel coordinates to ...
-   size_t imageY; // ... identify ray by pixel it intersected
-   walberla::id_t bodySystemID; // body which was hit
-   real_t t; // distance from camera to intersection point on body
+   size_t imageX;                //!< viewing plane x pixel coordinate the ray belongs to.
+   size_t imageY;                //!< viewing plane y pixel coordinate the ray belongs to.
+   walberla::id_t bodySystemID;  //!< system ID of body which was hit.
+   real_t t;                     //!< distance from camera to intersection point on body.
 };
 
+/*!\brief Simple struct for coordinates.
+ */
 struct Coordinates {
    size_t x;
    size_t y;
 };
 
+/*!\brief Comparator for Coordinates struct with standard lexicographical ordering.
+ */
 struct CoordinatesComparator {
    bool operator() (const Coordinates& lhs, const Coordinates& rhs) const {
-      // standard lexicographical ordering
       return (lhs.x < rhs.x) || (lhs.x == rhs.x && lhs.y < rhs.y);
    }
 };
 
-
 class Raytracer {
 public:
    /*!\name Constructors */