README file for autofill demo Author: Rob Moore, rmoore@sgi.com This program prints data concerning the fill rate performance for triangles of different areas and aspect ratios. This data can easily be plotted as a 3-D graph using gnuplot (see plot.gnu). The program works by increasing the number of triangles until a frame time is exceeded and then backing off slightly. At this point the fill rate is recorded and the next type of triangle is drawn. The triangles are drawn at random locations, but within the 320x240 screen so that clipped triangles are not a factor. To define the extents of the graph, define the constants (in fill.h): ASPECT_HI ASPECT_LO ASPECT_STEP AREA_HI AREA_LO AREA_STEP Note that only the RDP performance is measured. There is a certain amount of DRAM bandwidth that is dedicated to loading the display list into the input FIFO of the RDP. To get the most accurate answers, you should run with video blanked (-b option), and don't do frame buffer clears (-c option).