Patent ID: 9426412
Filing Date: 2016-08-23
CPC Classification: G06T,G09G,H04N

Claim Text:
1. A rendering device that renders a virtual space video of a projected virtual space object varying in at least one of shape and position over a plurality of frame periods, and having a plurality of image objects pasted on a plurality of surfaces of the virtual space object in one-to-one correspondence, the rendering device comprising: a scenario processor configured to analyze a rendering scenario of the virtual space video to calculate a scale-down ratio with respect to each of a plurality of image objects for a target frame period included in the frame periods, the scale-down ratio being for fitting the image object to a region in the virtual space video corresponding to one of the plurality of surfaces of the virtual space object, the target frame period being a period in which the virtual space video is to be displayed; a plurality of acquiring units each configured to acquire an image object for the frame period; a plurality of first scalers configured to scale-down the acquired image objects; a memory configured to store therein the scaled-down image objects; a plurality of second scalers configured to, when the target frame period is a current frame period, read from the memory the scaled-down image objects and re-scale each of the scaled-down image objects to match a scale-down ratio calculated by the scenario processor for the current frame period; and a composing unit configured to compose each of the re-scaled image objects on a region in the virtual space video corresponding to one of the surfaces of the virtual space object, wherein the rendering scenario includes a scaling function for each of the image objects, the scaling function designating as an argument the scale-down ratio in any of an X-axis direction, a Y-axis direction, and a Z-axis direction, after n predetermined frame periods have passed, the scenario processor displays each of the image objects at the scale-down ratio designated by the argument of the scaling function, from when a the target frame is one of frame periods to which the scale-down ratio which is changed in stages is allocated.