title: How does one Render a texture directly to the Camera in Unity
body: <p>In Unity, I have 2 images in the form of a texture that I am merging together (one overlaying the other). I do this in a Compute <code>Shader</code> and put the results on a <code>RenderTexture</code>. I want this <code>RenderTexture</code> to be everything that the output camera sees.</p>
  <p>I have found articles saying to use a the <code>ReplacementShader</code> property of the camera, but I couldn't get that to properly work.</p>
  <p>Currently I have simply put the <code>RenderTexture</code> onto a <code>UIRawImage</code> that covers the whole UI Canvas so that the entire camera is filled. This however has a lot of lag and is obviously a suboptimal solution.</p>
  <p>So how does one output the <code>Rendertexture</code> or the compute <code>Shader</code> result directly onto the camera. Thanks.</p>