  We investigate direct photon production in pp collisions at the energies of
RHIC, CDF and LHC, at different rapidities employing various color-dipole
models. The cross section peaks at forward rapidities due to the abelian
dynamics of photon radiation. This opens new opportunities for measurement of
direct photons at forward rapidities, where the background from radiative
hadronic decays is strongly suppressed. Our model calculations show that photon
production is sensitive to the gluon saturation effects, and strongly depends
on the value of the anomalous dimension.
