Tile-based rendering apparatus and method for rendering 3D graphics using binning information and property information

A tile-based rendering method for rendering 3D graphics using a graphics processing unit, the method comprising:

• performing, using at least one processor, binning of a current frame of an input image, the current frame including a plurality of tiles;
• generating, using the at least one processor, a first identification code of binning information of a tile to be rendered in the current frame and a second identification code of property information of the tile to be rendered, the property information based on a graphics-related property of the tile to be rendered, the binning information based on a list of primitives to be rendered in the tile to be rendered;
• comparing, using the at least one processor, the first identification code of the tile to be rendered to first identification code of a previous tile, wherein a location of the previous tile in a previous frame is the same as a location of the tile to be rendered in the current frame, and
• in response to the first identification code of the tile to be rendered being identical to a first identification code of a previous frame, comparing the second identification code of the tile to be rendered to a second identification code of the previous tile, and
• in response to the first identification code of the tile to be rendered not being identical to the first identification code of the previous tile, not comparing the second identification codes of the tile to be rendered and the previous tile;
• and
• rendering, using the at least one processor, the current frame by either re-using an image of the previous tile stored in a frame buffer or performing pixel processing of the tile to be rendered depending on a result of the comparing, the rendering including,
• re-using the image of the previous tile stored in the frame buffer in response to the first and second identification codes of the tile to be rendered being identical to the first and second identification codes of the previous tile, respectively, and
• performing the pixel processing of the tile to be rendered in response to at least one of the first and second identification codes of the tile to be rendered not being identical to the first and second identification codes of the previous tile, respectively.