A mixed reality experience sharing system for presenting a textured shared world model of a physical environment, the textured shared world model including a plurality of crowd-sourced structural data items that are geo-located at the physical environment, and a plurality of crowd-sourced texture data items that are geo-located at the physical environment, the mixed reality experience sharing system comprising: a mixed reality experience sharing program executed by a processor of a computing device, the mixed reality experience sharing program configured to: receive the plurality of crowd-sourced structural data items including depth information; stitch together the plurality of crowd-sourced structural data items to generate a 3D spatial shared world model of the physical environment; receive the plurality of crowd-sourced texture data items from a plurality of sources, each of the texture data items comprising a time-stamped image or video; prioritize the plurality of crowd-sourced texture data items according to a social proxi mity of the source from which each data item was received to the user; wherein the social proximity of a source is based on whether the source is present on one or more social graphs of the user; receive user input of a temporal filter parameter; filter the plurality of prioritized crowd-sourced texture data items by the temporal filter parameter to generate a temporally-filtered subgroup of the prioritized crowd-sourced texture data items; apply to surfaces of the 3D spatial shared world model of the physical environment the temporally-filtered subgroup of the prioritized crowd-sourced texture data items to generate the textured shared world model of the physical environment according to a predetermined social proximity threshold, wherein only those data items in the temporally-filtered subgroup of prioritized crowd-sourced texture data items that exceed the predetermined social proximity threshold are used for the 3D spatial shared world model of the physical environment; and provide the textured shared world model of the physical environment to a display program for display by a display device (34; 70). receive the plurality of crowd-sourced structural data items including depth information; stitch together the plurality of crowd-sourced structural data items to generate a 3D spatial shared world model of the physical environment; receive the plurality of crowd-sourced texture data items from a plurality of sources, each of the texture data items comprising a time-stamped image or video; prioritize the plurality of crowd-sourced texture data items according to a social proxi mity of the source from which each data item was received to the user; wherein the social proximity of a source is based on whether the source is present on one or more social graphs of the user; receive user input of a temporal filter parameter; filter the plurality of prioritized crowd-sourced texture data items by the temporal filter parameter to generate a temporally-filtered subgroup of the prioritized crowd-sourced texture data items; apply to surfaces of the 3D spatial shared world model of the physical environment the temporally-filtered subgroup of the prioritized crowd-sourced texture data items to generate the textured shared world model of the physical environment according to a predetermined social proximity threshold, wherein only those data items in the temporally-filtered subgroup of prioritized crowd-sourced texture data items that exceed the predetermined social proximity threshold are used for the 3D spatial shared world model of the physical environment; and provide the textured shared world model of the physical environment to a display program for display by a display device (34; 70).