#include <NINJA.H> 
void njRotateLightX( *ptr, angx )
NJS_LIGHT  *ptr
Angle  angx 

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

NJS_LIGHT light;

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

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

/* Ｘ軸を９０度の回転 */
njRotateLightX(&light, NJM_RAD_ANG(NJD_PI/2.f));