16.4 Tuning the Raster Subsystem

An explosion of both data and operations is required to rasterize a polygon as individual pixels. Typically, the operations include depth comparison, Gouraud shading, color blending, logical operations, texture mapping, and possibly antialiasing. The following techniques can improve performance for a fill-limited applications.

 
• 16.4.1 Using Backface/Frontface Removal
• Minimizing Per-Pixel Calculations
  • Avoid Unnecessary Per-Fragment Operations.
  • Use Simple Fill Algorithms for Large Polygons.
  • Use the Depth Buffer Efficiently.
• 16.4.3 Optimizing Texture Mapping
• 16.4.4 Clearing the Color and Depth Buffers Simultaneously