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gDPSetTextureLOD [macro]
Enables/disables LOD (MIP-map) textures.
Syntax
#include <ultra64.h> /* gbi.h */
gDPSetTextureLOD(Gfx *gdl, u32 mode)
gsDPSetTextureLOD( u32 mode)
Arguments
- gdl is the display list pointer.
- mode is the texture mode.
G_TL_TILE (LOD tile selection OFF)
G_TL_LOD(LOD tile selection ON)
Explanation
Enables/disables texture sampling of LOD (MIP-map) textures.
The texture modes are explained below:
- G_TL_TILE
- Turns LOD tile selection OFF.
In 1-cycle mode, the tile selected with gSPTexture is used for texture processing. In 2-cycle mode, the color combiner (CC) receives texels from both the tile selected with gSPTexture and from that tile + 1. This pair of texture tiles can be used as a dual-texture tile. - G_TL_LOD
- Selects a pair of tiles from a series of texture tiles.
LOD determines which pair of tiles will be selected. The CC uses texels sampled from this pair of tiles to perform MIP-mapping. Linear interpolation is performed on the two texel samples using the LOD factor in order to create the final MIP-mapped texel.
For details, please see Section 12.4.6, "Texture-Sampling Modes," and Section 13.7.2, "LOD Disabled" and 13.7.3, "LOD Enabled,"in the N64 Online Programming Manual.
See Also
gDPSetCombineMode
gDPSetTextureDetail
gDPSetTextureLUT
gDPSetTexturePersp
gSPTexture
Revision History
2/1/99 Completely rewritten.
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Nintendo® Confidential Warning: all information in this document is confidential and covered by a non-disclosure agreement. You are responsible for keeping this information confidential and protected. Nintendo will vigorously enforce this responsibility. Copyright © 1998-1999 Nintendo of America Inc. All rights reserved Nintendo and N64 are registered trademarks of Nintendo Last Updated April, 1999 |