Positional zero latency

A method for presenting video data to viewers, comprising:

• decoding, before a first time point, a first video image from a video stream, the video stream being streamed by a video streaming server;
• while rendering the first video image at the first time point on a display device to a viewer, collecting viewing tracking data based on which a target view direction of a viewer in relation to a three-dimensional (3D) scene depicted by the first video image is to be determined;
• sending, before a second time point subsequent to the first time point, the viewing tracking data to the video streaming server;
• decoding, before the second time point, a second video image from the video stream, the second video image comprising a target view portion with a target spatiotemporal resolution higher than a non-target spatiotemporal resolution used to encode remaining non-target view portions in the second video image that are outside the target view portion, the target view portion in the second video image having been identified by the streaming server based on the target view direction of the viewer determined from the viewing tracking data sent to the video streaming server before the second time point;
• causing at least a part of the target view portion in the second video image to be rendered, at the second time point, on the display device to the viewer;
• wherein the method is performed by one or more computing devices.