Using Orthogonal Camera View

The perspective camera view simulate real-world human vision; where distance has a direct correlation with the visual size of the objects in the scene. However, with orthogonal camera view, each line of 1 unit length appears to have the same length no matter where the line is located in the scene; which means objects don't change visual size when moving the camera toward and away.

Due to the characteristics of the orthogonal view, it is ideal for setting the body proportions for you characters.

1. Create a new project.
   
2. Load an avatar image as the background in the 2D Background section of the Project Settings panel. Set the Display Mode to Fit.
   
   You will see the image displayed behind the character.
   
3. Select the Preview Camera in the Scene Manager.
   
4. Switch to the Camera section of the Modify panel. Set the camera view to Orthogonal.
   
   The parallax of the camera view and the spatial feeling are eliminated.
   
5. Use the hotkeys to switch to the front (F) views.
   
6. Adjust the body proportion in accordance with the avatar in the background.