Added some proper test scenes for chapter 11.

source/camera.cpp

@@ -55,7 +55,7 @@ Ray Camera::rayForPixel(uint32_t pixelX, uint32_t pixelY)
     return Ray(origin, direction);
 }
 
-Canvas Camera::render(World world)
+Canvas Camera::render(World world, uint32_t depth)
 {
     uint32_t x, y;
     Canvas image = Canvas(this->horizontalSize, this->verticalSize);
@@ -65,7 +65,7 @@ Canvas Camera::render(World world)
         for(x = 0; x < this->horizontalSize; x++)
         {
             Ray r = this->rayForPixel(x, y);
-            Tuple colour = world.colourAt(r);
+            Tuple colour = world.colourAt(r, depth);
             image.putPixel(x, y, colour);
         }
     }

source/include/camera.h

@@ -32,7 +32,7 @@ public:
     Camera(uint32_t hsize, uint32_t vsize, double fov);
     void setTransform(Matrix transform);
     Ray rayForPixel(uint32_t pixelX, uint32_t pixelY);
-    Canvas render(World w);
+    Canvas render(World w, uint32_t depth = 5);
 };
 
 #endif /* DORAYME_CAMERA_H */

source/include/world.h

@@ -47,7 +47,7 @@ public:
     bool isShadowed(Tuple point);
 
     Colour reflectColour(Computation comps, uint32_t depthCount = 4);
-    Colour refractedColour(Computation comps, uint32_t depthCount = 0);
+    Colour refractedColour(Computation comps, uint32_t depthCount = 4);
 
     Intersect intersect(Ray r);
 

source/world.cpp

@@ -175,6 +175,5 @@ Colour World::refractedColour(Computation comps, uint32_t depthCount)
 
     Tuple hitColour = this->colourAt(refractedRay, depthCount - 1) * comps.object->material.transparency;
 
-
     return Colour(hitColour.x, hitColour.y, hitColour.z);
 }