Editing Scanline rendering (section)

==Similar techniques==
A similar principle is employed in [[tiled rendering]] (most famously the [[PowerVR]] 3D chip); that is, primitives are sorted into screen space, then rendered in fast on-chip memory, one tile at a time. The [[Dreamcast]] provided a mode for rasterizing one row of tiles at a time for direct raster scanout, saving the need for a complete framebuffer, somewhat in the spirit of hardware scanline rendering.

Some software rasterizers use 'span buffering' (or 'coverage buffering'), in which a list of sorted, clipped spans are stored in scanline buckets. Primitives would be successively added to this datastructure, before rasterizing only the visible pixels in a final stage.