Horizontal wrapping hash grid?

[jonathanventura]

How difficult would it be to make the HashGrid wrap horizontally? This would be useful for representing panoramic scenes with a NeRF.

[Tom94]

Fairly simple -- I reckon it's sufficient to add the appropriate modulus to the grid_index function.

That said, I haven't experienced particularly visible seams without wrapping. The interpolation doesn't cross the boundaries of the unit cube in any case, and the coinciding vertices on the boundary tend to learn similar values.