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https://github.com/sbrl/Minetest-WorldEditAdditions.git
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Add soft circle brush
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worldeditadditions/lib/sculpt/brushes/circle_soft1.lua
Normal file
56
worldeditadditions/lib/sculpt/brushes/circle_soft1.lua
Normal file
@ -0,0 +1,56 @@
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local wea = worldeditadditions
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local Vector3 = wea.Vector3
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return function(size)
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local brush = {}
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local centre = (size / 2):floor()
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local minsize = math.floor(math.min(size.x, size.y) / 2)
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local border = 1
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local kernel_size = 3
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local kernel_size_vec = {}
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kernel_size_vec[0] = kernel_size
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kernel_size_vec[1] = kernel_size
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-- Make the circle
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-- We don't use 0 to 1 here, because we have to blur it and the existing convolutional
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-- system rounds values.
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for y = size.y - 1, 0, -1 do
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for x = size.x - 1, 0, -1 do
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local i = y*size.x + x
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if math.floor((centre - Vector3.new(x, y, 0)):length()) < minsize - border then
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brush[i] = 100000
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else
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brush[i] = 0
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end
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end
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end
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print("BEFORE_BLUR")
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print(wea.sculpt.make_preview(brush, size))
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-- Make the kernel & blur it
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local success, kernel = wea.conv.kernel_gaussian(kernel_size, 2)
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if not success then return success, kernel end
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local success2, msg = worldeditadditions.conv.convolve(
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brush, Vector3.new(size.x, 0, size.y),
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kernel, kernel_size_vec
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)
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if not success2 then return success2, msg end
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-- Rescale to be between 0 and 1
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local max_value = wea.max(brush)
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for i,value in pairs(brush) do
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brush[i] = brush[i] / max_value
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end
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print("AFTER_BLUR")
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print(wea.sculpt.make_preview(brush, size))
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return true, brush, size
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end
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@ -6,7 +6,8 @@ local sculpt = {
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default = dofile(wea.modpath.."/lib/sculpt/brushes/default.lua"),
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default_soft = dofile(wea.modpath.."/lib/sculpt/brushes/default_soft.lua"),
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square = dofile(wea.modpath.."/lib/sculpt/brushes/square.lua"),
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circle = dofile(wea.modpath.."/lib/sculpt/brushes/circle.lua")
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circle = dofile(wea.modpath.."/lib/sculpt/brushes/circle.lua"),
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circle_soft1 = dofile(wea.modpath.."/lib/sculpt/brushes/circle_soft1.lua")
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},
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make_brush = dofile(wea.modpath.."/lib/sculpt/make_brush.lua"),
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make_preview = dofile(wea.modpath.."/lib/sculpt/make_preview.lua"),
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