Documenting done.

src/dawnopengl/display/BackBufferRenderTarget.hpp

@@ -18,15 +18,28 @@ namespace Dawn {
       struct Color clearColor = COLOR_CORNFLOWER_BLUE;
 
     public:
+      /**
+       * Construct the back buffer render target.
+       * 
+       * @param renderManager Render Manager for this back buffer target.
+       */
       BackBufferRenderTarget(RenderManager &renderManager);
 
+      /**
+       * Requests to modify the viewport directly. This is mostly to be called
+       * by whatever is setting the window/display resolution, so that the
+       * backbuffer can keep track of what the viewport size is. This should
+       * also be DPI aware, e.g. "4k @ 2xDPI, resulting in a 1080p equiv" should
+       * still call this method with 3840, 2160.
+       * 
+       * @param width New width of the back buffer.
+       * @param height New height of the back buffer.
+       */
+      void setSize(float_t width, float_t height);
+
       float_t getWidth() override;
       float_t getHeight() override;
-
-      void setSize(float_t width, float_t height);
-
-      void setClearColor(struct Color color);
-
+      void setClearColor(struct Color color) override;
       void clear(flag8_t clearFlags) override;
       void bind() override;
   };