Display engine for post-rendering processing

One or more computer-readable non-transitory storage media embodying software that is operable when executed to:

• generate a plurality of ray bundles for casting into an artificial reality scene wherein each ray bundle of the plurality of ray bundles comprises two or more rays, wherein an origin and a trajectory of each ray bundle are based on a viewpoint;
• apply a geometric transformation to one or more of the ray bundles that modifies the trajectory of each ray bundle from the origin into the artificial reality scene, wherein the geometric transformation is based on one or more distortion characteristics of a display system;
• determine, based on the origin and modified trajectories of the ray bundles, points of intersection of one or more of the ray bundles with one or more surfaces in the artificial reality scene by comparing one or more corners of each ray bundle to the one or more surfaces;
• generate an image of the artificial reality scene as viewed from the viewpoint using color values generated based on the determined points of intersection;
• and
• provide the image for display by the display system.

A system comprising:

• one or more processors;
• and
• one or more computer-readable non-transitory storage media coupled to one or more of the processors and comprising instructions operable when executed by one or more of the processors to cause the system to:
• generate a plurality of ray bundles for casting into an artificial reality scene, wherein each ray bundle of the plurality of ray bundles comprises two or more rays, wherein an origin and a trajectory of each ray bundle are based on a viewpoint;
• apply a geometric transformation to one or more of the ray bundles that modifies the trajectory of each ray bundle from the origin into the artificial reality scene, wherein the geometric transformation is based on one or more distortion characteristics of a display system;
• determine, based on the origin and modified trajectories of the ray bundles, points of intersection of one or more of the ray bundles with one or more surfaces in the artificial reality scene by comparing one or more corners of each ray bundle to the one or more surfaces;
• generate an image of the artificial reality scene as viewed from the viewpoint using color values generated based on the determined points of intersection;
• and
• provide the image for display by the display system.