public static void MouseToRay(float fX, float fY, Camera camera, out Vector3 kOrigin, out Vector3 kDirection)
{
float fUnitizedX = (fX / Screen.width) * 2.0f - 1.0f;
float fUnitizedY = ((Screen.height - fY) / Screen.height) * 2.0f - 1.0f;
UnFrustum frustum = GetCameraFrustum(camera);
fUnitizedX *= frustum.right;
fUnitizedY *= frustum.top;
Matrix4x4 kRotation = camera.transform.localToWorldMatrix;
Vector3 kLook, kLookUp, kLookRight;
kLook = kRotation.GetColumn(0);
kLookUp = kRotation.GetColumn(1);
kLookRight = kRotation.GetColumn(2);
if (frustum.ortho)
{
kOrigin = camera.transform.position + kLookRight * fUnitizedX + kLookUp * fUnitizedY;
kDirection = kLook;
}
else
{
kOrigin = camera.transform.position;
kDirection = kLook + kLookUp * fUnitizedY + kLookRight * fUnitizedX;
kDirection.Normalize();
}
}
static int GetCameraFrustum(IntPtr L)
{
try
{
ToLua.CheckArgsCount(L, 1);
UnityEngine.Camera arg0 = (UnityEngine.Camera)ToLua.CheckUnityObject(L, 1, typeof(UnityEngine.Camera));
UnFrustum o = UnGfx.GetCameraFrustum(arg0);
ToLua.PushObject(L, o);
return(1);
}
catch (Exception e)
{
return(LuaDLL.toluaL_exception(L, e));
}
}
