I am wondering which specifications must be filled to make a non sequential setup thermal. Simply put I use a single incident (10°) on a rectangular volume with material with thermal data.

Changing the temperature of the system in the explorer, even on a wide range of temperatures, does not make the ray refract at different angles, but the 3D view stays the same whatever the environement temperature. I tried to modify the thermal data of the glass to make it even more respondent to temperature change but still no change.

Am I missing something ?