A beam of X-rays is diffracted by the electrons in a crystalline material, just as visible light is diffracted by larger objects.
gamma ray photon in the sun's core emerges at the surface as thousands of visible-light photons.
Thus only infrared light will be seen without any visible light or other reflections or refractions.
The reality is that incandescent lamps are really much better near infrared sources than visible light sources!
luminous efficacy, i.e., the useful visible light in relation to the total energy of the radiation is high.