5const f32 HALF_PI = 1.5707964f;
6const f32 PI = 3.1415927f;
7const f32 TWO_PI = 6.2831855f;
8const f64 TWO_PI_D = 6.283185482025146;
10const f32 PI_180 = 0.017453292f;
12const f32 FLOAT_MAX = 3.4028235e38;
13const f32 FLOAT_ZERO = 0.0f;
15const static Vec gZeroVec = { 0.0f, 0.0f, 0.0f };