ATI 9200 User Guide - Page 29

25 Direct 3D® Compatibility Settings Support Wbuffer Support 32-bit Z-buffer depth Alpha dithering method This will enable W-Buffer support for 3D games. It is recommended to disable this for games that do not support this feature. Certain applications require the increased precision of W-Buffering and will exhibit artifacts unless the W-Buffer is enabled. Z-Buffer Bit Depth can be 16 bits, 24 bits, or 32 bits. 16 and 24 are selected by default to achieve optimum performance. Very few applications require a 32 bit ZBuffer, so in most cases this feature should be disabled. When applications use both dithering and alpha blending, visual artifacts can occur. This option allows you to select how the application should handle both features at the same time. In most cases Error Diffusion will handle this situation quite well, but there are a few cases where selecting Ordered may be necessary.