The following moves the view located at (0, 0, 0) and directed toward
(1, 1, -1) (toward the inside of the upper right of the screen) by 10
in the direction of the view.
#define VIEW_APX 0.f
#define VIEW_APY 0.f
#define VIEW_APZ 0.f
#define VIEW_AVX 1.f
#define VIEW_AVY 1.f
#define VIEW_AVZ -1.f
#define VIEW_AROLL 0
NJS_VIEW v;
v.apx = VIEW_APX;
v.apy = VIEW_APY;
v.apz = VIEW_APZ;
v.avx = VIEW_AVX;
v.avy = VIEW_AVY;
v.avz = VIEW_AVZ;
v.aroll = NJM_DEG_ANG(VIEW_AROLL);
njUnitViewVector( &v );
njForwardViewAbsolute(&v, 10.f);
njSetView( &v );
njClearMatrix();