njRotateLightZ

njRotateLightZ	<-\|INDEX\|->
njRotateLightZ	Japanese
Rotates a light matrix around the Z axis.

FORMAT

#include <NINJA.H> 
void njRotateLightZ( *ptr, angz )
NJS_LIGHT *ptr
Angle angz

PARAMETERS

*ptr
light pointer
angz
angle of rotation around Z axis

RETURN VALUE

Mone

ERROR VALUE

‚È‚µ

FUNCTION Rotates a light matrix defined with njCreateLight around the Z axis. This results in calculation of the light source position and direction.

EXAMPLE

#include <NINJA.H> 
...........

NJS_LIGHT light;

njInitSystem();
njCreateLight(&light, NJD_POINT_LIGHT);

...........
njClearMatrix();

/* Rotate 30 degrees around Z axis */
njRotateLightZ(&light, NJM_RAD_ANG(NJD_PI/6.f));

NOTES Before calling this function, the light to be modified must be specified by njCreateLight and njClearMatrix must be called.

RELATED TOPICS

njCreateLight()

njRotateLightZ	<-\|INDEX\|->