calc(deg2rad, Math.PI / 180.0); calc(hfov, 0.5 * (%1) * deg2rad); Math.tan(hfov); set(width, calc(hfov * 1000)); set(height, 'prop'); calc(yaw, -(%2) * deg2rad); calc(pitch, (%3) * deg2rad); calc(roll, -(%4) * deg2rad); Math.cos(ch, yaw); Math.sin(sh, yaw); Math.cos(ca, pitch); Math.sin(sa, pitch); Math.cos(cb, roll); Math.sin(sb, roll); Math.atan2(yaw, calc(cb*sh - sb*sa*ch), calc(ca*ch)); Math.atan2(roll, calc(sb*ch - cb*sa*sh), calc(cb*ca)); Math.asin(pitch, calc(cb*sa*ch + sb*sh)); calc(ath, yaw / deg2rad); calc(atv, pitch / deg2rad); calc(rotate, roll / deg2rad);