Light on long objects

We installed a puzzle structure in the atrium from the basement to the second floor of the museum, but the lighting on it isn’t working as we’d hoped. Because it’s a moving object, global illumination can’t be applied, and although we’ve tried placing multiple lightmaps and dividing the object, the brightness changes in a gradual manner.

After trying various conditions, we decided to make the material metallic and use the reflection of the reflection probe to reflect the ambient light.

Real-time shadows aren’t reflected very well, but a smoother change in brightness was prioritized.