  We present the results for direct photon and neutral pion production obtained
from proton-proton and lead-lead collisions in the ALICE experiment.
Measurement of neutral pions in pp collisions allows to test the validity of
QCD-inspired models. The study of neutral pion yields in Pb-Pb collisions
permits to study the medium-induced suppression relative to the pp case. The
yield of direct photons is compared to perturbative QCD calculations. In the
case of central Pb-Pb collisions the observed excess of photons below 4 GeV/c
is used to find the effective temperature of the matter.
