Graphic processing unit and method of performing, by graphic processing unit, tile-based graphics pipeline

A computing apparatus that performs a graphics pipeline on a frame including an object partitioned into one or more tiles, the computing apparatus comprising:

• a graphics processing unit (GPU) configured to,
• perform a binning pipeline including,
• generating an output patch,
• determining a number of tiles that include the output patch,
• determining whether to perform tessellating on the output patch based on the determined number of tiles,
• binning a tile list of one of the output patch or of tessellated primitives of the output patch based on whether tessellating is performed or not,
• store the binned tile list, and
• access the stored binned tile list;
• and
• perform a rendering pipeline per tile based on the binned tile list;
• and
• wherein the computing apparatus further includes,
• a memory configured to store the binned tile list, and
• wherein the binning pipeline performed by the GPU further comprises determining not to perform the tessellation on the output patch when the number of tiles that include the output patch is one.

A method of performing a graphics pipeline, by a graphics processing unit (GPU), on a frame including an object partitioned into one or more tiles, the method comprising:

• performing a binning pipeline including,
• generating an output patch by a hull shader;
• tessellating the output patch with a second tessellation factor that is lower than a first tessellation factor determined by the hull shader;
• determining by the GPU whether to perform tessellating with the first tessellation factor, based on a number of tiles including primitives tessellated with the second tessellation factor;
• and
• binning a tile list of one of primitives tessellated with the first tessellation factor or the output patch output from the hull shader based on a result of the determining whether to perform tessellation with the first tessellation factor;
• and
• performing a rendering pipeline per tile based on the binned tile list,
• wherein the binning pipeline comprises binning the tile list of the output patch when the primitives tessellated with the second tessellation factor are included in one tile.

A computing apparatus that performs a graphics pipeline on a frame including an object partitioned into one or more tiles, the computing apparatus comprising:

• a graphics processing unit (GPU) including a hull shader, the GPU configured to perform a binning pipeline including,
• generating an output patch by the hull shader;
• tessellating the output patch with a second tessellation factor that is lower than a first tessellation factor determined by the hull shader;
• determining whether to perform tessellating with the first tessellation factor based on a number of tiles including primitives tessellated with the second tessellation factor;
• and
• binning a tile list of one of primitives tessellated with the first tessellation factor or the output patch output from the hull shader based on a result of the determining whether to perform tessellation with the first tessellation factor;
• and
• perform a rendering pipeline per tile based on the binned tile list;
• and wherein
• the GPU further includes a memory configured to store the binned tile list, and
• the binning pipeline comprises binning the tile list of the output patch when the primitives tessellated with the second tessellation factor are included in one tile.