Foveal adaptation of temporal anti-aliasing

A method for providing a virtual reality (VR) scene with temporal anti-aliasing for presentation on a head mounted display (HMD), comprising:

• generating, by a GPU, a VR scene including a series of video frames, the VR scene including a foveal region of the video frame and a peripheral region of the video frame;
• anti-aliasing the VR scene, wherein the anti-aliasing includes,
• obtaining a transformation matrix for a vertex within the VR scene and determining a location of the vertex within the VR scene,
• selecting, by a vertex shader, a jitter component to be applied to the vertex, wherein a first jitter component having a first magnitude is selected if the vertex is determined to be located within the foveal region of the VR scene and a second jitter component having a second magnitude is selected if the vertex is determined to be located within the peripheral region of the VR scene, the foveal region having a higher resolution of pixels than the peripheral region, and both the first jitter component and the second jitter component are applied to each one of the series of video frames, and
• applying the selected jitter component to the transformation matrix of the vertex for an anti-aliased VR scene;
• and
• sending the anti-aliased VR scene for display on a display associated with the HMD;
• wherein the anti-aliasing for a current video frame of the VR scene includes sampling from a plurality of previous video frames.

A computer program embedded in a non-transitory computer-readable storage medium, when executed by one or more processors, for providing a virtual reality (VR) scene with anti-aliasing for presentation on a head mounted display (HMD), the computer program comprising:

• program instructions for rendering a VR scene including a series of video frames that includes a foveal region of the video frame and a peripheral region of the video frame;
• program instructions for applying anti-aliasing to the foveal region of the video frame using a first jitter offset having a first magnitude for an anti-aliased foveal region;
• program instructions for applying anti-aliasing to the peripheral region of the video frame using a second jitter offset having a second magnitude for an anti-aliased peripheral region, the foveal region having a higher resolution of pixels than the peripheral region;
• program instructions for sending the VR scene having the anti-aliased foveal region and the anti-aliased peripheral region for presentation on a display associated with the HMD, and wherein the first magnitude of the first jitter offset is smaller than the second magnitude of the second jitter offset, and both the first jitter offset and the second jitter offset are applied to a transformation matrix used for anti-aliasing each one of the series of video frames, and wherein the anti-aliasing for a current video frame of the VR scene includes sampling from a plurality of previous video frames.