Server-rendering of graphics for remote client

摘要

A method for transmitting rendered 3d images to a remote client device 550 comprises rendering 720 server rendering elements to generate reference image data 580 and rendering 722 client rendering elements to generate a client auxiliary image data 582. Either the reference image and the client auxiliary image, or the reference image and auxiliary data are compressed 730 to generate compressed client data which is transmitted 740 over a network 570 to the client device 550. Whether the reference image is compressed with the client auxiliary image or the auxiliary data is dependent upon the relative amount of data representing the client auxiliary image and auxiliary data. A server system with a rendering subsystem to perform the method is also claimed. The method allows auxiliary rendering information to be separated from rendering information used to describe the reference image. The client device may alter the auxiliary data and generate a new image based upon the reference image and rendered scene information from the auxiliary data without creating additional network bandwidth or server workload.