Tex(TexType textureType, TexFormat textureFormat)

TexType textureType What type of texture is it? Just a 2D Image? A Cubemap? Should it have mip-maps?
TexFormat textureFormat What information is the texture composed of? 32 bit colors, 64 bit colors, etc.

Sets up an empty texture container! Fill it with data using SetColors next! Creates a default unique asset Id.