Scalable, multi-user server and methods for rendering images from interactively customizable scene information

A server for use in connection with a network including at least one client and a communication link interconnecting the client and server. The server comprises a user interaction control module, an image rendering module and an interface. The image rendering module is configured to render, from three-dimensional scene data representing a scene, a two-dimensional image. The interface configured to transmit the two-dimensional image over the communication link to the client. The user interaction control module is configured to regulate interactions between the server, in particular the image rendering module, and respective clients who may be using the server concurrently to control images in which customizations requested by, for example, respective clients are rendered.