photons don't bounce, get absorbed and emitted from the materials at a specific frequency once the electron gets excited enough. metallic materials emit photon

photons don't bounce, get absorbed and emitted from the materials at a specific frequency once the electron gets excited enough. metallic materials emit photon without absorbing much energy, while other material absorb more of the energy and radiate it later as infrared. the 'direction' of the emission depends on the interference with all the other incoming photons. that part is rooted in quantum mechanic and I've no idea how it works exactly.