Moving images about the scene

Transforms versus fieldings

Transform-type nodes and Camera nodes are quite similar: they can both take an input image, and make it appear to move, scale and rotate. So, what are the nodes intended for, and which type of node should you use when?

Moving images

We recommend that, when building your Scene Graph, you follow a model based on a traditional rostrum camera, where cels are placed on multiple pegbars on a single camera bed. A Scene Graph using this model should look similar to the one below:

• The Camera node sets the camera's fielding on the entire scene.

• Each Transform node sets the movement of one pegbar on the camera bed[2].

Since the girl and the ball move together, they would share a pegbar on a rostrum camera, and so share a transform. Each other element of the drawing moves independently, and so each has its own transform.