Add renderstat to get some info about rendering.

source/intersect.cpp

@@ -11,13 +11,21 @@
 #include <intersect.h>
 
 #include <float.h>
+#include <renderstat.h>
 
 #define MIN_ALLOC (2)
 
+/* TODO: Memory allocation, even if using standard calloc/realloc have a huge impact on performances. need to find a way
+ * to reuse the intersect object without reallocating from scratch all the time. We use a lot of Intersect objects as
+ * there is at least 2 per ray (one for Ray intersect object, one object per light)
+ */
+
 Intersect::Intersect()
 {
     this->allocated = MIN_ALLOC;
     this->list = (Intersection **)calloc(sizeof(Intersection *), MIN_ALLOC);
+    stats.addMalloc();
+    stats.addIntersect();
     this->num = 0;
 }
 
@@ -35,10 +43,13 @@ void Intersect::add(Intersection i)
     if ((this->num + 1) > this->allocated)
     {
         this->allocated *= 2;
+        stats.addRealloc();
         this->list = (Intersection **)realloc(this->list, sizeof(Intersection *) * this->allocated);
     }
     this->list[this->num++] = new Intersection(i.t, i.object);
 
+    stats.setMaxIntersect(this->num);
+
     /* Now sort.. */
     for(j = 1; j < (this->num); j++)
     {