Documenting done.

src/dawn/display/shader/_Shader.hpp

@@ -24,16 +24,33 @@ namespace Dawn {
        */
       virtual void bind() = 0;
 
-      // virtual void setCamera(glm::mat4 projection, glm::mat4 view) = 0;
-      // virtual void setLocalPosition(glm::mat4 position) = 0;
-
+      /**
+       * Requested by the Material to set the default parameters of the shader.
+       * Each parameter really should have a default value set so that there is
+       * no nullptr's or other issues.
+       * 
+       * @param material Material to set the default parameters on to.
+       */
       virtual void setDefaultParameters(Material &material) = 0;
 
+      /**
+       * Requested by the render pipeline (typically) to set global level (once
+       * per frame) parameters.
+       * 
+       * @param projection Projection matrix of the current viewport.
+       * @param view View matrix of the current viewport.
+       */
       virtual void setGlobalParameters(
         glm::mat4 projection,
         glm::mat4 view
       ) = 0;
 
+      /**
+       * Requested by the render pipeline (typically) to set mesh-level params.
+       * This may be performed multiple times per frame.
+       * 
+       * @param position Matrix of the position of the mesh.
+       */
       virtual void setMeshParameters(glm::mat4 position) = 0;
 
       /**