- EXPLOITING FRAME TO FRAME COHERENCY IN A SORT-MIDDLE ARCHITECTURE

摘要

The pixel values calculated in the previous frame can be reused for the current frame, operating in an intermediate-classification architecture. A hash or some other reduced representation of all data used in the tile, including all triangles, uniforms, textures, shaders, etc., is computed and stored for each tile. When rendering the next frame, such reduced representation is calculated once again for each tile. In mid-class architecture, there is a natural break point just before rasterization. At this breakpoint, the reduced representation can be compared to the reduced representation computed in the previous frame for the same tile. If those reduced representations are the same, there is no need to render anything for these tiles. Instead, the content of the color buffer of the previous frame of the tile or another buffer may be moved to the same buffer of the tile for the current frame.