The simplest working example would be to use the Physical Optics material together with the camera polarization filter.
Have a look at this file: If you switch the rotation of the camera polarizer from 0 to 90 degrees, most of the reflection from the specular dielectric component disappears, making the underlying diffuse response more visible.
The daylight environment is currently treated as emitting unpolarized light, so rotating the camera polarizer will not produce a directional polarization effect there. In that case, you should mainly expect a reduction in the overall intensity.nuno1980 wrote: Wed Sep 30, 2026 10:26 pm Hello.
I tested Polarization filter of camera and this filter can work the calcite (example) but this filter cannot:
- sky light (daylight environment)
- reflected water (new material), if we use orange glasses (new material), we rotate its by -90º or +90º to invert the color reflection for reflected water from orange to blue.
- ...
But except diffuse caustics doesn't have polarized - this is correct.
Best regards.
The same applies after interactions that depolarize the light, such as diffuse bounces or interactions with materials that do not support polarization.
Regarding the reflected-water / orange-glass example, could you clarify what you mean by "new material" and what exact result you expect when rotating the glass by ±90°? I’m not quite sure I understand that particular setup.
An example scene would be helpful in understanding the situation.
