GXInvalidateVtxCache

Syntax

#include <revolution/gx.h>

void GXInvalidateVtxCache( void );

Arguments

None.

Return Values

None.

Description

This function is called by the GXInit function and invalidates the vertex cache tags. Use this function whenever you relocate or modify data that is read by, or may be cached by, the vertex cache. The invalidation is very fast, taking only two graphics processor clock cycles to complete.

The vertex cache is used to cache indexed attribute data. At that time, all attributes that are set to GX_INDEX8 or GX_INDEX16 in the current vertex descriptor are indexed.(See GXSetVtxDesc.) Direct data bypasses the vertex cache. Direct data is any attribute that is set to GX_DIRECT in the current vertex descriptor.

See Also

GXSetArray, GXInit, GXSetVtxDesc

Revision History

2006/03/01 Initial version.

CONFIDENTIAL