Packs four floats on a range from 0.0 to 1.0 into a single Uint32
Red component in a range from 0.0 to 1.0
Green component in a range from 0.0 to 1.0
Blue component in a range from 0.0 to 1.0
Alpha component in a range from 0.0 to 1.0
Packs four floats on a range from 0.0 to 1.0 into a single Uint32