texCoords :: DataFrame GLushort '[2,4]
texCoords = vec2 minBound minBound
       <::> vec2 maxBound minBound
       <+:> vec2 minBound maxBound
       <+:> vec2 maxBound maxBound
texCoords :: DataFrame GLushort '[2,4]
texCoords = vec2 minBound minBound
       <::> vec2 maxBound minBound
       <+:> vec2 minBound maxBound
       <+:> vec2 maxBound maxBound
texCoords = vec2 minBound minBound
       <::> vec2 maxBound minBound
       <+:> vec2 minBound maxBound
       <+:> vec2 maxBound maxBound