Here are a few precisions about what Deeper and Carrara exactly do. Carrara can render normal map but in global space, the one rendered with Deeper are in camera space, the z axis pointing toward the camera. And when the camera is a perspective camera, Deeper modify the orientation of the vectors to compensate the camera deformation. So its possible to create normal maps with Carrara, but the camera need to be an isometric camera, and to be place in the top view. Then a few more operations outside Carrara are necessary to extract the map from the g-buffers and place them into the color channels. Deeper renderer just removes all these constraints. Then Deeper provide a way to read the map in Carrara shaders, which wasnt possible before. I hope this helps. And thanks for your advices for the website construction tools.