GXSetZCompLoc#include <revolution/gx.h>void GXSetZCompLoc( GXBool before_tex );
| before_tex | Enables Z buffering before texturing when set to GX_TRUE. Otherwise, Z buffering takes place after texturing. |
None.
This function sets whether Z buffering happens before or after texturing. Normally, Z buffering happens before texturing, as this improves performance by not texturing pixels that are not visible. However, when alpha compare is used, Z buffering must be done after texturing (see GXSetAlphaCompare).
Since changing the Z buffering location control requires the pixel pipeline to be synchronized, this function stalls the graphics processor. Therefore, avoid redundant calls of this function.
03/01/2006 Initial version.