GXInitFogAdjTable

C Specification

#include <revolution/gx.h>

void GXInitFogAdjTable(
                GXFogAdjTable*  table,
                u16             width,
                f32             projmtx[4][4] );

Arguments

`table`	The range adjustment parameter table that uses `GXSetFogRangeAdj` to send to the graphics pipe.
`width`	Width of the viewport (in pixels). Match this value to that of the current viewport's settings. Failure to do so may result in an incorrect range adjustment.
`projmtx`	The project matrix used in rendering for the viewport.

Return Values

None.

Description

This function generates the standard range adjustment table and puts the results into table (the user must allocate table). This table can be used by GXSetFogRangeAdj to adjust the visual-space Z, which is used for fog, based on the X position of the pixels being rendered. No compensation is made for the Y direction. This effectively increases the fog density at the edges of the screen, making for a more realistic fog effect. The width of the viewport is specified using width. The projmtx parameter is the projection matrix that is used to render into the viewport. This parameter must be specified so that the function can compute the X extent of the viewing frustum in visual space.

Revision History

2006/03/01 Initial version.