1. A method for rasterizing a graphics primitive for a framebuffer comprising at least two scanlines, said method comprising: dividing said graphics primitive into at least one region, said regions comprising at least one scanline-boundaried trapezoidal region, where each of said scanline-boundaried trapezoidal regions comprises a trapezoidal region where a first edge of said trapezoidal region falls on a first boundary between two scanlines and where a second edge of said trapezoidal region falls on a second boundary between two scanlines; rasterizing at least one of said scanline-boundaried trapezoidal regions according to a trapezoid rasterization method; and rasterizing each other region in said graphics primitive using a rasterizer.