local wea = worldeditadditions local wea_c = worldeditadditions local Vector3 = wea_c.Vector3 --- Returns a smooth gaussian brush. -- @param size Vector3 The target size of the brush. Note that the actual size of the brush will be different, as the gaussian function has some limitations. -- @param sigma=2 number The 'smoothness' of the brush. Higher values are more smooth. return function(size, sigma) size = math.min(size.x, size.y) if size % 2 == 0 then size = size - 1 end -- Gaussian runs on odd numbers if size < 1 then return false, "Error: Invalid brush size (brushes must be at least 1 node in size)." end local success, gaussian = wea.conv.kernel_gaussian(size, sigma) -- Normalise values to fill the range 0 - 1 -- By default, wea.conv.kernel_gaussian values add up to 1 in total local max = wea_c.max(gaussian) for i=0,size*size-1 do gaussian[i] = gaussian[i] / max end return success, gaussian, Vector3.new(size, size, 0) end