Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 8 - Light Objects / Light Objects Reference

Light Objects Routines / Managing Point Lights

Q3PointLight_GetAttenuation

You can use the Q3PointLight_GetAttenuation function to get the attenuation of a point light.

TQ3Status Q3PointLight_GetAttenuation (
TQ3LightObject light, 
TQ3AttenuationType *attenuation);

light

A point light object.

attenuation

On exit, the type of attenuation of the light. See "Light Attenuation Values" on page 8-9 for a description of the constants that can be returned in this parameter.

DESCRIPTION

The Q3PointLight_GetAttenuation function returns, in the attenuation parameter, the current attenuation value of the point light specified by the light parameter.