Compensating for high head movement in head-mounted displays

A graphics processing unit, comprising:

• an interface to couple the graphics processing unit to a processor,
• a plurality of texture units,
• a shared memory coupled to the plurality of texture units,
• a plurality of register files coupled to the shared memory,
• a plurality of load/store units coupled to the shared memory, and
• a plurality of graphics processing cores coupled to the plurality of register files, and
• a non-transitory storage memory comprising instructions that when executed cause at least some of the plurality of graphics processing cores to:
• receive information to identify a portion of a frame as a foveated region, based on eye gaze detection,
• shade the foveated region at a first shading rate, and
• shade at least a portion of a region other than the foveated region at a second shading rate,
• wherein the first shading rate is different from the second shading rate,
• wherein the first shading rate is higher than the second shading rate, and
• wherein the second shading rate is half of the first shading rate and the first shading rate and the second shading rate are non-normalized rates.

A non-transitory storage medium comprising instructions that when executed cause at least one of a plurality of graphics processing cores of a graphics processor comprising a plurality of texture units, a shared memory coupled to the plurality of texture units, a plurality of register files coupled to the shared memory, a plurality of load/store units coupled to the shared memory, and the plurality of graphics processing cores coupled to the plurality of register files, to:

• receive information to identify a first portion of a frame based on eye gaze detection;
• apply a first non-normalized shading rate within the first portion of the frame, and
• apply a second non-normalized shading rate within at least a second portion of the frame,
• wherein the first portion of the frame is a foveated region, and
• wherein the first non-normalized shading rate is at least twice the second non-normalized shading rate.