Combiner Type: This option has several different suboptions, that relate to how the plugin renders graphics in the plugin, through the DirectX rendering engine. Several different combiner options are available:
Swap Effect: This option controls how the DirectX render engine performs buffer swaps. Often, Flip is the best option.
OnScreen Display: These options control whether a on screen display is shown during emulation, and what sort of display is shown. The options are pretty much self-explanatory, so there's no need for a detailed discussion on each effect.
OnScreen Text Color: This option controls the color of the onscreen display. Values entered need to be in hexadecimal.
Force Software Transformation and Lighting: This option forces the use of software T&L. This means that all lighting calculations are performed in software mode (on the CPU), which means potentially that graphics are rendered slower than they would be in hardware T&L (recommended). Note: This option is unavailable in the development branch plugin
Use Software Vertex Clipper: This is a advanced option. If set, the option will force all clipping operations to run on the CPU. This method requires a fast CPU, and its often needed for new and recent video cards.
Full Screen Anti-Aliasing: This option, when used, will reduce the amount of "jaggies" present of graphics edges. Please note, due to hardware limitations, FSAA will not work on framebuffer effects. Note: This option is unavailable in the development branch plugin
Anisotropic Filtering: This option, when used, will enable anisotropic filtering. The level of graphics filtering possible depends on your video card's capabilities.