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A graphics card can render 3D graphics hundreds of times faster than a CPU and graphics cards are used to accelerate compositing of windows on the desktop for a many-fold performance increase.
Despite the advantages of graphics cards in these areas, 2D geometry on the Mac is normally generated by the CPU in main memory. You can opt to have your program drawn on the graphics card instead but this option is off by default. This 2D on the graphics card drawing is named QuartzGL.
QuartzGL works by generating an an OpenGL ARB_fragment_program (pixel buffer drawing commands) and performing on the graphics card what would ordinarily be performed on the CPU.
Despite the advantages of graphics cards in these areas, 2D geometry on the Mac is normally generated by the CPU in main memory. You can opt to have your program drawn on the graphics card instead but this option is off by default. This 2D on the graphics card drawing is named QuartzGL.
QuartzGL works by generating an an OpenGL ARB_fragment_program (pixel buffer drawing commands) and performing on the graphics card what would ordinarily be performed on the CPU.
