# 3.9.6 Specular Highlight

## Utility Functions

guLookAtHilite and guLookAtHiliteF - Calculate the lookat viewing matrix, and set the light structure that sets the default color and the viewing direction. Then calculate the texture offsets of two specular highlights.

## GBI Commands

gSPLookAt, gSPLookAtX, and gSPLookAtY - Load the 'lookat' structure to the RSP for specular highlights or reflection mapping.
gDPSetHilite1Tile and gDPSetHilite2Tile - Set the texture parameter in the RDP to be used when rendering the specular highlight.

Nintendo® Confidential
Copyright © 1999
Nintendo of America Inc. All Rights Reserved
Nintendo and N64 are registered trademarks of Nintendo
Last Updated March, 1999