title: S3/DXT/BC compression and texture formats
body: <p>I know that DXT compression is used because it saves a lot of memory and bandwidth. However, DXT quality is not so good.
  Is DXT usually used? Are other compressed formats used? Are raw (no compression) formats usually used?</p>
  <p>I've read about BPTC Texture Compression too, but I don't have OpenGL 4.x support, just OpenGL 3.x.</p>
  <p>I know that there isn't a perfect answer for this question but some &quot;guidelines&quot; would be very helpful.</p>