sbrl-github/Minetest-WorldEditAdditions
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Add soft circle brush

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This commit is contained in:
Starbeamrainbowlabs 2021-12-28 18:32:40 +00:00
parent 1cad9f4064
commit 3e2687f82d
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
2 changed files with 58 additions and 1 deletions
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56
worldeditadditions/lib/sculpt/brushes/circle_soft1.lua Normal file
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@ -0,0 +1,56 @@
local wea = worldeditadditions
local Vector3 = wea.Vector3
return function(size)
local brush = {}
local centre = (size / 2):floor()
local minsize = math.floor(math.min(size.x, size.y) / 2)
local border = 1
local kernel_size = 3
local kernel_size_vec = {}
kernel_size_vec[0] = kernel_size
kernel_size_vec[1] = kernel_size
-- Make the circle
-- We don't use 0 to 1 here, because we have to blur it and the existing convolutional
-- system rounds values.
for y = size.y - 1, 0, -1 do
for x = size.x - 1, 0, -1 do
local i = y*size.x + x
if math.floor((centre - Vector3.new(x, y, 0)):length()) < minsize - border then
brush[i] = 100000
else
brush[i] = 0
end
end
end
print("BEFORE_BLUR")
print(wea.sculpt.make_preview(brush, size))
-- Make the kernel & blur it
local success, kernel = wea.conv.kernel_gaussian(kernel_size, 2)
if not success then return success, kernel end
local success2, msg = worldeditadditions.conv.convolve(
brush, Vector3.new(size.x, 0, size.y),
kernel, kernel_size_vec
)
if not success2 then return success2, msg end
-- Rescale to be between 0 and 1
local max_value = wea.max(brush)
for i,value in pairs(brush) do
brush[i] = brush[i] / max_value
end
print("AFTER_BLUR")
print(wea.sculpt.make_preview(brush, size))
return true, brush, size
end

3
worldeditadditions/lib/sculpt/init.lua
View file

@ -6,7 +6,8 @@ local sculpt = {
default = dofile(wea.modpath.."/lib/sculpt/brushes/default.lua"),
default_soft = dofile(wea.modpath.."/lib/sculpt/brushes/default_soft.lua"),
square = dofile(wea.modpath.."/lib/sculpt/brushes/square.lua"),
circle = dofile(wea.modpath.."/lib/sculpt/brushes/circle.lua")
circle = dofile(wea.modpath.."/lib/sculpt/brushes/circle.lua"),
circle_soft1 = dofile(wea.modpath.."/lib/sculpt/brushes/circle_soft1.lua")
},
make_brush = dofile(wea.modpath.."/lib/sculpt/make_brush.lua"),
make_preview = dofile(wea.modpath.."/lib/sculpt/make_preview.lua"),