View Spherical Images in game

I am trying to view spherical renderings or photographs within my level. My thought was to grab a spherical image, create a material, put that on a sphere, and put a camera in the middle of that sphere, similar to a skybox. That seems to work fine, but the image seems to get really distorted, specifically straight lines become squiggly. I’ve tried messing with the texture’s compression settings, but nothing seems to fix it. Is there a fix, or maybe a better way to go about doing this?