360 viewer in unity, texture appears warped in the top and bottom
<p>I am making a 360 viewer in unity, to view a 360 photo I used to have a cubemap attached to a skybox, and it worked great. But the weight of the cubemaps forced me to switch to textures.</p>

<p>All of the 360 viewer tutorials say to just put a sphere with a shader on it, and put the camera inside. When I do this, it doesn't work very well, because when I look to the top or bottom, I see the image warped like so: (The chairs are suppossed to look normal)
<img src="https://i.stack.imgur.com/FtElS.jpg" alt="enter image description here"></p>

<p>It did not happen when I used a skybox.</p>

<p>Does any one know why is this happening?</p>

<p>Thank you very much!</p>