Searched refs:cos_th (Results 1 – 1 of 1) sorted by relevance
873 f32 theta, sin_th, cos_th, tp, tq; in C_QUATSlerp() local879 cos_th = p->x * q->x + p->y * q->y + p->z * q->z + p->w * q->w; in C_QUATSlerp()882 if ( cos_th < 0.0F ) in C_QUATSlerp()884 cos_th = -cos_th; in C_QUATSlerp()888 if ( cos_th <= 1.0F - QUAT_EPSILON ) in C_QUATSlerp()890 theta = acosf(cos_th); in C_QUATSlerp()