Preserving sample data in foveated rendering of graphics content

A method for generating graphics content comprising:

• assigning a first region of the graphics content to a first tile of a plurality of tiles;
• assigning a second region of the graphics content to a second tile of the plurality of tiles;
• determining, at the first tile and at a first resolution, a first plurality of samples of the graphics content for each pixel of a plurality of pixels associated with the first region;
• determining, at the second tile and at a second resolution that is lower than the first resolution, a second plurality of samples of the graphics content for each pixel of a plurality of pixels associated with the second region;
• downsampling the first plurality of samples into a combined plurality of samples;
• preserving samples of the second plurality of samples to generate a third plurality of samples with preserved samples;
• storing the combined plurality of samples;
• and
• storing the third plurality of samples with preserved samples.

A non-transitory computer-readable medium for generating graphics content, the non-transitory computer-readable medium storing a program containing instructions that, when executed by a processor of a device, cause the device to perform a method comprising:

• assigning a first region of the graphics content to a first tile of a plurality of tiles;
• assigning a second region of the graphics content to a second tile of the plurality of tiles;
• determining, at the first tile and at a first resolution, a first plurality of samples of the graphics content for each pixel of a plurality of pixels associated with the first region;
• determining, at the second tile and at a second resolution that is lower than the first resolution, a second plurality of samples of the graphics content for each pixel of a plurality of pixels associated with the second region;
• downsampling the first plurality of samples into a combined plurality of samples;
• preserving samples of the second plurality of samples to generate a third plurality of samples with preserved samples;
• storing the combined plurality of samples;
• and
• storing the third plurality of samples with preserved samples.