may i assign a data exceed [0,1] to the rgb value?

Hi,i am now studying GPGPU and i want to transfer my data to fragment program by building a texture.But the data are not in the range of [0,1], should i normalize the data at first?if i don’t,can i get the true date in fragment program?
thank you.

There are floating point textures with 16 and 32 bit precision. Look up the extension

There is a dedicated GPGPU site which should get you started on such basics.