Function undiscretize

models/mesh_xl/tokenizer.py:23–33

(
    t: Tensor,
    continuous_range = Tuple[float, float],
    num_discrete: int = 128
)

def undiscretize(
    t: Tensor,
    continuous_range = Tuple[float, float],
    num_discrete: int = 128
) -> Tensor:
    lo, hi = continuous_range
    assert hi > lo
    t = t.float()
    t += 0.5
    t /= num_discrete       # cube normalize
    return t * (hi - lo) + lo