How to fix a touch point with camera fit viewport accurately?
<p><strong><code>FitViewport</code></strong></p>

<p>when using this viewport and get the touch point, as you can see in the below 1st GIF that the bullet is direction is not accurate to the touch point.</p>

<p><a href="https://i.stack.imgur.com/eI5W5.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eI5W5.gif" alt="fit viewport"></a></p>

<p><strong><code>StretchViewport</code></strong></p>

<p>but using this viewport, the touch point and bullet direction is entirely fixed and accurate. </p>

<p><a href="https://i.stack.imgur.com/3HySE.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3HySE.gif" alt="stretch viewport"></a></p>