A physichromie acts as a "light trap" in a space where a series of color frames interact; frames that transform each other, generating new ranges of colors not present on the support. Thus, the color fills the space confined between the vertical sheets — light-modulators — that cover the entire work. In addition, due to the effects of the viewer or light source, a series of color variations are created in them, similar to those observed in the real space of the landscape.

These color variations that endlessly repeat themselves every day, are not always exactly the same, due to the variations of intensity and nature of the light that showers them. Hence the name Physichromie, by calling into play the color light — the physical color.