Abstract: A method and apparatus in a graphics system. The graphics system includes an input, wherein the input receives graphics data, wherein the graphics data includes position coordinates and a depth coordinate for an object. An output is present in which the output transmits processed graphics data. The graphics system also contains a plurality of processing elements, wherein the plurality of processing elements generates the processed graphics data. A first processing element within the plurality of processing elements is connected to the input and a last processing element within the plurality of processing elements is connected to the output. A selected processing element within the plurality of processing element receives the position coordinates and the depth coordinate, inverts the depth coordinate to form an inverted depth coordinate, and multiplies the position coordinates by the inverted depth coordinate.

Abstract: A computer system and an associated graphics adapter that includes one or more processors connected to a host bus. A system memory is accessible from the host bus via a memory controller and an I/O bridge is coupled between the host bus and an I/O bus. The computer system further includes a frame buffer suitable for storing a representation of a graphic image and the graphics adapter connected to the I/O bus. The graphics adapter includes means for receiving host pixel data that is formatted, according to a host format defining the ordering and width of a set host components, as a set of host component values. The adapter also has means for transforming the host pixel data into frame buffer pixel data where the frame buffer pixel data is formatted, according to a frame buffer format defining the ordering and width of a set of frame buffer components, as a set of frame buffer component values.