Patent ID: 8335425

Claim:
A playback method, comprising: presenting graphics data on a graphics plane; shifting the graphics plane based on first offset data to produce a first shifted graphics plane, the first offset data including a shift magnitude used to shift the first graphics plane and a shift direction used to shift the first graphics plane; shifting the graphics plane based on second offset data to produce a second shifted graphics plane, the second offset data including a shift magnitude used to shift the second graphics plane and a shift direction used to shift the second graphics plane, the shift magnitude used to shift the first graphics plane being equal to the shift magnitude used to shift the second graphics plane, and the shift direction used to shift the first graphics plane being opposite the shift direction used to shift the second graphics plane; presenting video data on a left-eye video plane; and presenting video data on a right-eye video plane, wherein the video data of the left-eye video plane and graphics data of the first shifted graphics plane are overlaid to provide a left-eye output, wherein the video data of the right-eye video plane and graphics data of the second shifted graphics plane are overlaid to provide a right-eye output, and wherein, when the video data on the left-eye video plane is scaled, a shift magnitude used to shift the first graphics plane is provided based on a value obtained by multiplying the shift magnitude used to shift the first graphics plane by a scaling factor which is applied to the video data on the left-eye video plane and which is inclusive of reduction.