filter4dThis option improves rendering speed (or, in other words, reduces noise and improves antialiasing).It is equivalent to the Tent filter with width 2.0 in the sense that theygaussian_filter# .ndimage. gaussian_filter (input, sma, order = 0, output = None, mode = 'reflect', cval = 0.0, truncate = 4.0, *, radius = None, axes = None) [source] # Multidimensional