diff --git a/init.lua b/init.lua
index d1b9c31..ca62147 100644
--- a/init.lua
+++ b/init.lua
@@ -11,36 +11,352 @@ wesh = {
 }
 
 wesh.models_path = wesh.mod_path .. "/models/"
-
-minetest.register_privilege("wesh_capture", {
-	description = "Can use wesh canvases to capture new meshes",
-	give_to_singleplayer = true,
-})
-
-minetest.register_privilege("wesh_place", {
-	description = "Can place nodes created from wesh captures",
-	give_to_singleplayer = true,
-})
-
-minetest.register_privilege("wesh_delete", {
-	description = "Can delete captured meshes",
-	give_to_singleplayer = true,
-})
-
-minetest.register_privilege("wesh_import", {
-	description = "Can import matrix files",
-	give_to_singleplayer = true,
-})
-
-minetest.register_privilege("wesh_vacuum", {
-	description = "Can disintegrate all blocks in the canvas space",
-	give_to_singleplayer = true,
-})
-
 local smartfs = dofile(wesh.mod_path .. "/smartfs.lua")
-
 local storage = dofile(wesh.mod_path .. "/storage.lua")
 
+-- ========================================================================
+-- initialization functions
+-- ========================================================================
+
+function wesh.init()
+	wesh.temp_path = minetest.get_worldpath() .. "/mod_storage/" .. wesh.temp_foldername .. "/"
+	wesh.gen_prefix = "mesh_"
+
+	if not minetest.mkdir(wesh.temp_path) then
+		error("[wesh] Unable to create folder " .. wesh.temp_path)
+	end
+
+	wesh.init_colors()
+	wesh.init_geometry()
+	wesh.init_privileges()
+	wesh.init_transforms()
+	wesh.init_variants()
+	wesh.init_vertex_textures()
+	wesh.register_canvas_nodes()
+	
+	wesh.delete_marked_objs()
+	wesh.move_temp_files()
+	wesh.load_mod_meshes()	
+end
+
+function wesh.init_colors()
+	wesh.colors = {
+		"violet", 
+		"white", 
+		"yellow", 
+		"air", 
+		"magenta", 
+		"orange", 
+		"pink", 
+		"red", 
+		"dark_green", 
+		"dark_grey", 
+		"green", 
+		"grey", 
+		"black",      
+		"blue",      
+		"brown", 
+		"cyan", 
+	}
+	
+	-- The following loop populates the color_vertices table with data like this...
+	-- 
+	-- wesh.color_vertices = {
+	-- 	violet 		= { 1, 2, 3, 4 },
+	-- 	white       = { 5, 6, 7, 8 },
+	-- 
+	-- ...and so forth, in a boring sequence.
+	-- 
+	-- Such indices will refer to the vt sequence generated by _init_vertex_textures()
+	-- The same loop will also fill the nodename_to_color table with default fallbacks for wool
+
+	wesh.nodename_to_color = {}
+	wesh.color_vertices = {}
+	for i, color in ipairs(wesh.colors) do
+		local t = {}
+		local j = (i - 1) * 4 + 1
+		for k = j, j + 3 do
+			table.insert(t, k)
+		end
+		wesh.color_vertices[color] = t
+		if color ~= "air" then
+			wesh.nodename_to_color["wool:" .. color] = color
+		end
+	end
+	
+	local colors_filename = "nodecolors.conf"
+	local default_colors_filename = "default." .. colors_filename
+	local full_colors_filename = wesh.mod_path .. "/" .. colors_filename
+	local full_default_colors_filename = wesh.mod_path .. "/" .. default_colors_filename
+	
+	local file = io.open(full_colors_filename, "rb")
+	if not file then
+		minetest.debug("[wesh] Copying " .. default_colors_filename .. " to " .. colors_filename)
+		local success, err = wesh.copy_file(full_default_colors_filename, full_colors_filename)
+		if not success then
+			minetest.debug("[wesh] " .. err)
+			return
+		end
+		file = io.open(full_colors_filename, "rb")
+		if not file then
+			minetest.debug("[wesh] Unable to load " .. colors_filename .. " file from mod folder")
+			return
+		end
+	end
+
+	--  The following loop will fill the nodename_to_color table with custom values
+	local content = file:read("*all")
+	local lines = content:gsub("(\r\n)+", "\r"):gsub("\r+", "\n"):split("\n")
+	for _, line in ipairs(lines) do
+		local parts = line:gsub("%s+", ""):split("=")
+		if #parts == 2 then
+			wesh.nodename_to_color[parts[1]] = parts[2]
+		end
+	end
+	file:close()
+
+end
+
+function wesh.init_geometry()
+
+	-- helper table to build the six faces
+	wesh.cube_vertices = {
+		{ x =  1, y = -1, z = -1 }, -- 1
+		{ x = -1, y = -1, z = -1 }, -- 2
+		{ x = -1, y = -1, z =  1 }, -- 3
+		{ x =  1, y = -1, z =  1 }, -- 4
+		{ x =  1, y =  1, z = -1 }, -- 5
+		{ x =  1, y =  1, z =  1 }, -- 6
+		{ x = -1, y =  1, z =  1 }, -- 7
+		{ x = -1, y =  1, z = -1 }, -- 8
+	}
+
+	-- vertices refer to the above cube_vertices table
+	wesh.face_construction = {
+		bottom = { vertices = { 4, 3, 2, 1 }, normal = 1 },
+		top    = { vertices = { 8, 7, 6, 5 }, normal = 2 },
+		back   = { vertices = { 2, 8, 5, 1 }, normal = 3 },
+		front  = { vertices = { 4, 6, 7, 3 }, normal = 4 },
+		left   = { vertices = { 6, 4, 1, 5 }, normal = 5 },
+		right  = { vertices = { 3, 7, 8, 2 }, normal = 6 },
+	}
+	
+	wesh.face_normals = {
+		{x =  0, y = -1, z =  0 },
+		{x =  0, y =  1, z =  0 },
+		{x =  0, y =  0, z = -1 },
+		{x =  0, y =  0, z =  1 },
+		{x = -1, y =  0, z =  0 },
+		{x =  1, y =  0, z =  0 },
+	}
+end
+
+function wesh.init_privileges()
+
+	minetest.register_privilege("wesh_capture", {
+		description = "Can use wesh canvases to capture new meshes",
+		give_to_singleplayer = true,
+	})
+
+	minetest.register_privilege("wesh_place", {
+		description = "Can place nodes created from wesh captures",
+		give_to_singleplayer = true,
+	})
+
+	minetest.register_privilege("wesh_delete", {
+		description = "Can delete captured meshes",
+		give_to_singleplayer = true,
+	})
+
+	minetest.register_privilege("wesh_import", {
+		description = "Can import matrix files",
+		give_to_singleplayer = true,
+	})
+
+	minetest.register_privilege("wesh_vacuum", {
+		description = "Can disintegrate all blocks in the canvas space",
+		give_to_singleplayer = true,
+	})
+
+end
+
+function wesh.init_transforms()
+	local rot = {}
+	local dir = {}
+	
+	-- no rotation
+	rot[0] = {{  1,  0,  0},
+	          {  0,  1,  0},
+	          {  0,  0,  1}}
+	-- 90 degrees clockwise
+	rot[1] = {{  0,  0,  1},
+	          {  0,  1,  0},
+	          { -1,  0,  0}}
+	-- 180 degrees
+	rot[2] = {{ -1,  0,  0},
+	          {  0,  1,  0},
+	          {  0,  0, -1}}
+	-- 270 degrees clockwise
+	rot[3] = {{  0,  0, -1},
+	          {  0,  1,  0},
+	          {  1,  0,  0}}
+
+	-- directions
+	-- Y+
+	dir[0] = {{  1,  0,  0},
+	          {  0,  1,  0},
+	          {  0,  0,  1}}
+	-- Z+
+	dir[1] = {{  1,  0,  0},
+	          {  0,  0, -1},
+	          {  0,  1,  0}}
+	-- Z-
+	dir[2] = {{  1,  0,  0},
+	          {  0,  0,  1},
+	          {  0, -1,  0}}
+	-- X+
+	dir[3] = {{  0,  1,  0},
+	          { -1,  0,  0},
+	          {  0,  0,  1}}
+	-- X-
+	dir[4] = {{  0, -1,  0},
+	          {  1,  0,  0},
+	          {  0,  0,  1}}
+	-- Y-
+	dir[5] = {{ -1,  0,  0},
+	          {  0, -1,  0},
+	          {  0,  0,  1}}
+	
+	wesh.facedir_transform = {}
+	
+	for facedir = 0, 23 do
+		local direction = math.floor(facedir / 4)
+		local rotation = facedir % 4
+		wesh.facedir_transform[facedir] = wesh.matrix_multiply(dir[direction], rot[rotation])
+	end
+end
+
+function wesh.init_variants()
+	local variants_filename = "nodevariants.lua"
+	local default_variants_filename = "default." .. variants_filename
+	local full_variants_filename = wesh.mod_path .. "/" .. variants_filename
+	local full_default_variants_filename = wesh.mod_path .. "/" .. default_variants_filename
+	
+	local file = io.open(full_variants_filename, "rb")
+	if not file then
+		minetest.debug("[wesh] Copying " .. default_variants_filename .. " to " .. variants_filename)
+		local success, err = wesh.copy_file(full_default_variants_filename, full_variants_filename)
+		if not success then
+			minetest.debug("[wesh] " .. err)
+			return
+		end
+		file = io.open(full_variants_filename, "rb")
+		if not file then
+			minetest.debug("[wesh] Unable to load " .. variants_filename .. " file from mod folder")
+			return
+		end
+	end
+
+	local custom_variants = minetest.deserialize(file:read("*all"))	
+	wesh.variants = {
+		plain = "plain-16.png",
+	}
+	
+	-- ensure there is at least one valid variant in the custom variants
+	if custom_variants and type(custom_variants) == "table" then
+		for name, texture in pairs(custom_variants) do
+			if name and type(name) == "string" and texture and type(texture) == "string" then
+				wesh.variants = custom_variants
+				break
+			end
+		end
+	end
+	file:close()
+end
+
+function wesh.init_vertex_textures()
+	-- creates a 4x4 grid of UV mappings, each with a margin of one pixel
+	-- will be used by the .OBJ file generator
+	local vt = {}
+	local space = wesh.vt_size / 4
+	local tile = space - 2
+	local offset = tile / 2
+	local start = offset + 1
+	local stop = start + 3 * space
+	local mult = 1 / wesh.vt_size
+	for y = start, stop, space do
+		for x = start, stop, space do
+			table.insert(vt, "vt " .. ((x + offset) * mult) .. " " .. ((y + offset) * mult) .. "\n") -- top right
+			table.insert(vt, "vt " .. ((x + offset) * mult) .. " " .. ((y - offset) * mult) .. "\n") -- bottom right
+			table.insert(vt, "vt " .. ((x - offset) * mult) .. " " .. ((y - offset) * mult) .. "\n") -- bottom left
+			table.insert(vt, "vt " .. ((x - offset) * mult) .. " " .. ((y + offset) * mult) .. "\n") -- top left
+		end
+	end
+	wesh.vertex_textures = table.concat(vt)
+end
+
+function wesh.register_canvas_nodes()
+
+	local function register_canvas(index, size, inner)
+		minetest.register_craft({
+			output = "wesh:canvas" .. size,
+			recipe = {
+				{"group:wool", "group:wool", "group:wool"},
+				{"group:wool", inner, "group:wool"},
+				{"group:wool", "group:wool", "group:wool"},
+			}
+		})
+		minetest.register_node("wesh:canvas" .. size, {
+			drawtype = "mesh",
+			mesh = "zzz_canvas" .. size .. ".obj",
+			inventory_image = "canvas_inventory.png^[verticalframe:6:" .. (index-1) .. ".png",
+			tiles = { "canvas.png" },
+			paramtype2 = "facedir",
+			on_rightclick = wesh.canvas_interaction,
+			description = "Woolen Mesh Canvas - Size " .. size,
+			walkable = true,
+			groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 3 },
+		})
+	end
+	
+	local canvas_sizes = {
+		{"02", "default:steel_ingot"},
+		{"04", "default:copper_ingot"},
+		{"08", "default:tin_ingot"},
+		{"16", "default:bronze_ingot"},
+		{"32", "default:gold_ingot"},
+		{"64", "default:diamond"},
+	}
+	
+	wesh.valid_canvas_sizes = {}
+	
+	for index, canvas_data in pairs(canvas_sizes) do
+		local size = canvas_data[1]
+		local inner = canvas_data[2]
+		wesh.valid_canvas_sizes[tonumber(size)] = true
+		register_canvas(index, size, inner)
+	end
+		
+	minetest.register_alias("wesh:canvas", "wesh:canvas16")
+end
+
+function wesh.reset_geometry(canv_size)
+	wesh.matrix = {}
+	wesh.vertices = {}
+	wesh.vertices_indices = {}
+	wesh.faces = {}
+	local function reset(p)
+		if not wesh.matrix[p.x] then wesh.matrix[p.x] = {} end
+		if not wesh.matrix[p.x][p.y] then wesh.matrix[p.x][p.y] = {} end
+		wesh.matrix[p.x][p.y][p.z] = "air"	
+	end
+	wesh.traverse_matrix(reset, canv_size)
+end
+
+-- ========================================================================
+-- forms handling
+-- ========================================================================
+
 wesh.forms.capture = smartfs.create("wesh.forms.capture", function(state)
 	state:size(7, 7)
 	
@@ -213,22 +529,23 @@ wesh.forms.giveme_meshes = smartfs.create("wesh.forms.giveme_meshes", function(s
 			stored_variants:addItem(wesh.create_nodename(obj_filename, variant))
 		end
 	end
-	stored_variants:onDoubleClick(wesh.give_mesh_callback)
 
 	local give_button = state:button(0.5, 7.2, 3, 1, "give", "Giveme selected")
-	give_button:onClick(wesh.give_mesh_callback)
 	
 	local done_button = state:button(4, 7.2, 2, 1, "done", "Done")
 	done_button:setClose(true)
-end)
+	
+	local function give_mesh_callback(_, state)
+		local nodename = state:get("stored_variants"):getSelectedItem()
+		if not nodename then return end
+		local player_inv = minetest.get_player_by_name(state.player):get_inventory()
+		player_inv:add_item("main", {name = nodename, count = 1})
+		wesh.notify(state.player, nodename .. " added to inventory")
+	end
+	stored_variants:onDoubleClick(give_mesh_callback)
+	give_button:onClick(give_mesh_callback)
 
-function wesh.give_mesh_callback(_, state)
-	local nodename = state:get("stored_variants"):getSelectedItem()
-	if not nodename then return end
-	local player_inv = minetest.get_player_by_name(state.player):get_inventory()
-	player_inv:add_item("main", {name = nodename, count = 1})
-	wesh.notify(state.player, nodename .. " added to inventory")
-end
+end)
 
 wesh.forms.import_matrix = smartfs.create("wesh.forms.import_matrix", function(state)
 	state:size(8, 8)
@@ -286,341 +603,6 @@ wesh.forms.vacuum_canvas = smartfs.create("wesh.forms.vacuum_canvas", function(s
 	cancel_button:setClose(true)
 end)
 
-
--- ========================================================================
--- initialization functions
--- ========================================================================
-
-function wesh._init()
-	wesh.temp_path = minetest.get_worldpath() .. "/mod_storage/" .. wesh.temp_foldername .. "/"
-	wesh.gen_prefix = "mesh_"
-
-	if not minetest.mkdir(wesh.temp_path) then
-		error("[wesh] Unable to create folder " .. wesh.temp_path)
-	end
-	wesh._init_vertex_textures()
-	wesh._init_colors()
-	wesh._init_geometry()
-	wesh._init_variants()
-	wesh._init_transforms()
-	wesh._delete_marked_objs()
-	wesh._move_temp_files()
-	wesh._load_mod_meshes()
-	wesh._register_canvas_nodes()
-end
-
-function wesh._register_canvas_nodes()
-
-	local function register_canvas(index, size, inner)
-		minetest.register_craft({
-			output = "wesh:canvas" .. size,
-			recipe = {
-				{"group:wool", "group:wool", "group:wool"},
-				{"group:wool", inner, "group:wool"},
-				{"group:wool", "group:wool", "group:wool"},
-			}
-		})
-		minetest.register_node("wesh:canvas" .. size, {
-			drawtype = "mesh",
-			mesh = "zzz_canvas" .. size .. ".obj",
-			inventory_image = "canvas_inventory.png^[verticalframe:6:" .. (index-1) .. ".png",
-			tiles = { "canvas.png" },
-			paramtype2 = "facedir",
-			on_rightclick = wesh.canvas_interaction,
-			description = "Woolen Mesh Canvas - Size " .. size,
-			walkable = true,
-			groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 3 },
-		})
-	end
-	
-	local canvas_sizes = {
-		{"02", "default:steel_ingot"},
-		{"04", "default:copper_ingot"},
-		{"08", "default:tin_ingot"},
-		{"16", "default:bronze_ingot"},
-		{"32", "default:gold_ingot"},
-		{"64", "default:diamond"},
-	}
-	
-	wesh.valid_canvas_sizes = {}
-	
-	for index, canvas_data in pairs(canvas_sizes) do
-		local size = canvas_data[1]
-		local inner = canvas_data[2]
-		wesh.valid_canvas_sizes[tonumber(size)] = true
-		register_canvas(index, size, inner)
-	end
-		
-	minetest.register_alias("wesh:canvas", "wesh:canvas16")
-end
-
-function wesh._init_vertex_textures()
-	-- creates a 4x4 grid of UV mappings, each with a margin of one pixel
-	-- will be used by the .OBJ file generator
-	local vt = {}
-	local space = wesh.vt_size / 4
-	local tile = space - 2
-	local offset = tile / 2
-	local start = offset + 1
-	local stop = start + 3 * space
-	local mult = 1 / wesh.vt_size
-	for y = start, stop, space do
-		for x = start, stop, space do
-			table.insert(vt, "vt " .. ((x + offset) * mult) .. " " .. ((y + offset) * mult) .. "\n") -- top right
-			table.insert(vt, "vt " .. ((x + offset) * mult) .. " " .. ((y - offset) * mult) .. "\n") -- bottom right
-			table.insert(vt, "vt " .. ((x - offset) * mult) .. " " .. ((y - offset) * mult) .. "\n") -- bottom left
-			table.insert(vt, "vt " .. ((x - offset) * mult) .. " " .. ((y + offset) * mult) .. "\n") -- top left
-		end
-	end
-	wesh.vertex_textures = table.concat(vt)
-end
-
-function wesh._init_colors()
-	wesh.colors = {
-		"violet", 
-		"white", 
-		"yellow", 
-		"air", 
-		"magenta", 
-		"orange", 
-		"pink", 
-		"red", 
-		"dark_green", 
-		"dark_grey", 
-		"green", 
-		"grey", 
-		"black",      
-		"blue",      
-		"brown", 
-		"cyan", 
-	}
-	
-	-- The following loop populates the color_vertices table with data like this...
-	-- 
-	-- wesh.color_vertices = {
-	-- 	violet 		= { 1, 2, 3, 4 },
-	-- 	white       = { 5, 6, 7, 8 },
-	-- 
-	-- ...and so forth, in a boring sequence.
-	-- 
-	-- Such indices will refer to the vt sequence generated by _init_vertex_textures()
-	-- The same loop will also fill the nodename_to_color table with default fallbacks for wool
-
-	wesh.nodename_to_color = {}
-	wesh.color_vertices = {}
-	for i, color in ipairs(wesh.colors) do
-		local t = {}
-		local j = (i - 1) * 4 + 1
-		for k = j, j + 3 do
-			table.insert(t, k)
-		end
-		wesh.color_vertices[color] = t
-		if color ~= "air" then
-			wesh.nodename_to_color["wool:" .. color] = color
-		end
-	end
-	
-	local colors_filename = "nodecolors.conf"
-	local default_colors_filename = "default." .. colors_filename
-	local full_colors_filename = wesh.mod_path .. "/" .. colors_filename
-	local full_default_colors_filename = wesh.mod_path .. "/" .. default_colors_filename
-	
-	local file = io.open(full_colors_filename, "rb")
-	if not file then
-		minetest.debug("[wesh] Copying " .. default_colors_filename .. " to " .. colors_filename)
-		local success, err = wesh.copy_file(full_default_colors_filename, full_colors_filename)
-		if not success then
-			minetest.debug("[wesh] " .. err)
-			return
-		end
-		file = io.open(full_colors_filename, "rb")
-		if not file then
-			minetest.debug("[wesh] Unable to load " .. colors_filename .. " file from mod folder")
-			return
-		end
-	end
-
-	--  The following loop will fill the nodename_to_color table with custom values
-	local content = file:read("*all")
-	local lines = content:gsub("(\r\n)+", "\r"):gsub("\r+", "\n"):split("\n")
-	for _, line in ipairs(lines) do
-		local parts = line:gsub("%s+", ""):split("=")
-		if #parts == 2 then
-			wesh.nodename_to_color[parts[1]] = parts[2]
-		end
-	end
-	file:close()
-
-end
-
-function wesh._init_geometry()
-
-	-- helper table to build the six faces
-	wesh.cube_vertices = {
-		{ x =  1, y = -1, z = -1 }, -- 1
-		{ x = -1, y = -1, z = -1 }, -- 2
-		{ x = -1, y = -1, z =  1 }, -- 3
-		{ x =  1, y = -1, z =  1 }, -- 4
-		{ x =  1, y =  1, z = -1 }, -- 5
-		{ x =  1, y =  1, z =  1 }, -- 6
-		{ x = -1, y =  1, z =  1 }, -- 7
-		{ x = -1, y =  1, z = -1 }, -- 8
-	}
-
-	-- vertices refer to the above cube_vertices table
-	wesh.face_construction = {
-		bottom = { vertices = { 4, 3, 2, 1 }, normal = 1 },
-		top    = { vertices = { 8, 7, 6, 5 }, normal = 2 },
-		back   = { vertices = { 2, 8, 5, 1 }, normal = 3 },
-		front  = { vertices = { 4, 6, 7, 3 }, normal = 4 },
-		left   = { vertices = { 6, 4, 1, 5 }, normal = 5 },
-		right  = { vertices = { 3, 7, 8, 2 }, normal = 6 },
-	}
-	
-	wesh.face_normals = {
-		{x =  0, y = -1, z =  0 },
-		{x =  0, y =  1, z =  0 },
-		{x =  0, y =  0, z = -1 },
-		{x =  0, y =  0, z =  1 },
-		{x = -1, y =  0, z =  0 },
-		{x =  1, y =  0, z =  0 },
-	}
-end
-
-function wesh._init_transforms()
-	local rot = {}
-	local dir = {}
-	
-	-- no rotation
-	rot[0] = {{  1,  0,  0},
-	          {  0,  1,  0},
-	          {  0,  0,  1}}
-	-- 90 degrees clockwise
-	rot[1] = {{  0,  0,  1},
-	          {  0,  1,  0},
-	          { -1,  0,  0}}
-	-- 180 degrees
-	rot[2] = {{ -1,  0,  0},
-	          {  0,  1,  0},
-	          {  0,  0, -1}}
-	-- 270 degrees clockwise
-	rot[3] = {{  0,  0, -1},
-	          {  0,  1,  0},
-	          {  1,  0,  0}}
-
-	-- directions
-	-- Y+
-	dir[0] = {{  1,  0,  0},
-	          {  0,  1,  0},
-	          {  0,  0,  1}}
-	-- Z+
-	dir[1] = {{  1,  0,  0},
-	          {  0,  0, -1},
-	          {  0,  1,  0}}
-	-- Z-
-	dir[2] = {{  1,  0,  0},
-	          {  0,  0,  1},
-	          {  0, -1,  0}}
-	-- X+
-	dir[3] = {{  0,  1,  0},
-	          { -1,  0,  0},
-	          {  0,  0,  1}}
-	-- X-
-	dir[4] = {{  0, -1,  0},
-	          {  1,  0,  0},
-	          {  0,  0,  1}}
-	-- Y-
-	dir[5] = {{ -1,  0,  0},
-	          {  0, -1,  0},
-	          {  0,  0,  1}}
-	
-	wesh.facedir_transform = {}
-	
-	for facedir = 0, 23 do
-		local direction = math.floor(facedir / 4)
-		local rotation = facedir % 4
-		wesh.facedir_transform[facedir] = wesh.matrix_multiply(dir[direction], rot[rotation])
-	end
-end
-
-function wesh.apply_transform(pos, transform)
-	return {
-		x = pos.x * transform[1][1] + pos.y * transform[1][2] + pos.z * transform[1][3],
-		y = pos.x * transform[2][1] + pos.y * transform[2][2] + pos.z * transform[2][3],
-		z = pos.x * transform[3][1] + pos.y * transform[3][2] + pos.z * transform[3][3],
-	}
-end
-
-function wesh.matrix_multiply(a, b)
-	local res = {}
-	for row = 1, #a do
-		res[row] = {}
-		for col = 1, #b[1] do
-			local num = a[row][1] * b[1][col]
-			for i = 2, #a[1] do
-				num = num + a[row][i] * b[i][col]
-			end
-			res[row][col] = num
-		end
-	end
-	return res
-end
-
-function wesh.transform(facedir, pos)
-	return wesh.apply_transform(pos, wesh.facedir_transform[facedir])
-end
-
-function wesh._reset_geometry(canv_size)
-	wesh.matrix = {}
-	wesh.vertices = {}
-	wesh.vertices_indices = {}
-	wesh.faces = {}
-	local function reset(p)
-		if not wesh.matrix[p.x] then wesh.matrix[p.x] = {} end
-		if not wesh.matrix[p.x][p.y] then wesh.matrix[p.x][p.y] = {} end
-		wesh.matrix[p.x][p.y][p.z] = "air"	
-	end
-	wesh.traverse_matrix(reset, canv_size)
-end
-
-function wesh._init_variants()
-	local variants_filename = "nodevariants.lua"
-	local default_variants_filename = "default." .. variants_filename
-	local full_variants_filename = wesh.mod_path .. "/" .. variants_filename
-	local full_default_variants_filename = wesh.mod_path .. "/" .. default_variants_filename
-	
-	local file = io.open(full_variants_filename, "rb")
-	if not file then
-		minetest.debug("[wesh] Copying " .. default_variants_filename .. " to " .. variants_filename)
-		local success, err = wesh.copy_file(full_default_variants_filename, full_variants_filename)
-		if not success then
-			minetest.debug("[wesh] " .. err)
-			return
-		end
-		file = io.open(full_variants_filename, "rb")
-		if not file then
-			minetest.debug("[wesh] Unable to load " .. variants_filename .. " file from mod folder")
-			return
-		end
-	end
-
-	local custom_variants = minetest.deserialize(file:read("*all"))	
-	wesh.variants = {
-		plain = "plain-16.png",
-	}
-	
-	-- ensure there is at least one valid variant in the custom variants
-	if custom_variants and type(custom_variants) == "table" then
-		for name, texture in pairs(custom_variants) do
-			if name and type(name) == "string" and texture and type(texture) == "string" then
-				wesh.variants = custom_variants
-				break
-			end
-		end
-	end
-	file:close()
-end
-
 -- ========================================================================
 -- core functions
 -- ========================================================================
@@ -694,7 +676,7 @@ function wesh.save_new_mesh(canvas, playername, description)
 	end
 	
 	-- empty all helper variables
-	wesh._reset_geometry(canvas.size)
+	wesh.reset_geometry(canvas.size)
 	
 	canvas.voxel_count = 0
 	
@@ -727,9 +709,296 @@ function wesh.save_new_mesh(canvas, playername, description)
 end
 
 -- ========================================================================
--- matrix import helpers
+-- file generation
 -- ========================================================================
 
+function wesh.create_nodename(obj_filename, variant)
+	return "wesh:" .. obj_filename:gsub("[^%w]+", "_"):gsub("_obj", "") .. "_" .. variant 
+end
+
+function wesh.prepare_data_file(description, canvas)
+	local boxes = {}
+	wesh.merge_collision_boxes(canvas)	
+	for _, box in ipairs(canvas.boxes) do
+		table.insert(boxes, wesh.box_to_collision_box(box, canvas.size))
+	end
+	
+	local data = {
+		description = description,
+		variants = canvas.chosen_variants,
+		collision_box = {
+			type = "fixed",
+			fixed = boxes,
+		}
+	}
+	return wesh.serialize(data, 2)
+end
+
+function wesh.save_mesh_to_file(obj_filename, meshdata, description, playername, canvas)
+	
+	-- save .obj file
+	local full_filename = wesh.temp_path .. "/" .. obj_filename
+	local file, errmsg = io.open(full_filename, "wb")
+	if not file then
+		wesh.notify(playername, "Unable to write to file '" .. obj_filename .. "' from '" .. wesh.temp_path .. "' - error: " .. errmsg)
+		return false
+	end
+	file:write(meshdata)
+	file:close()
+	
+	-- save .dat file
+	local data_filename = obj_filename .. ".dat"
+	local full_data_filename = wesh.temp_path .. "/" .. data_filename
+	local file, errmsg = io.open(full_data_filename, "wb")
+	if not file then
+		wesh.notify(playername, "Unable to write to file '" .. data_filename .. "' from '" .. wesh.temp_path .. "' - error: " .. errmsg)
+		return false
+	end
+	file:write(wesh.prepare_data_file(description, canvas))
+	file:close()
+	
+	if canvas.generate_matrix then
+		-- save .matrix.dat file
+		local matrix_data_filename = obj_filename .. ".matrix.dat"
+		local full_matrix_data_filename = wesh.temp_path .. "/" .. matrix_data_filename
+		local file, errmsg = io.open(full_matrix_data_filename, "wb")
+		if not file then
+			wesh.notify(playername, "Unable to write to file '" .. matrix_data_filename .. "' from '" .. wesh.temp_path .. "' - error: " .. errmsg)
+			return false
+		end
+		file:write(minetest.serialize(wesh.matrix))
+		file:close()
+	end
+	
+	wesh.notify(playername, "Mesh saved to '" .. obj_filename .. "' in '" .. wesh.temp_path .. "'")
+	wesh.notify(playername, "Reload the world to move newly created mesh to the mod folder")
+	wesh.notify(playername, "Mesh stats: " .. canvas.voxel_count .. " voxels, " .. #wesh.vertices .. " vertices, " .. #wesh.faces .. " faces")
+	return true
+end
+
+-- ========================================================================
+-- file listing / filtering
+-- ========================================================================
+
+function wesh.filter_non_obj(filelist)
+	local list = {}
+	for _, filename in pairs(filelist) do
+		if wesh.is_valid_obj_filename(filename) then
+			table.insert(list, filename)
+		end
+	end
+	return list
+end
+
+function wesh.filter_non_matrix(filelist)
+	local list = {}
+	for _, filename in pairs(filelist) do
+		if wesh.is_valid_matrix_filename(filename) then
+			table.insert(list, filename)
+		end
+	end
+	return list
+end
+
+function wesh.get_all_files()
+	local all = wesh.get_temp_files()
+	for _, entry in pairs(wesh.get_stored_files()) do
+		table.insert(all, entry)
+	end
+	return all
+end
+
+function wesh.get_all_obj_files()
+	local stored_obj_files = wesh.filter_non_obj(wesh.get_stored_files())
+	local temp_obj_files = wesh.filter_non_obj(wesh.get_temp_files())
+	local marked_objs = wesh.retrieve_marked_objs()
+	local result = {}
+
+	for _, obj_filename in pairs(stored_obj_files) do
+		table.insert(result, {
+			filename = obj_filename,
+			type = marked_objs[obj_filename] and "pending deletion" or "stored",
+		})
+	end
+	
+	for _, obj_filename in pairs(temp_obj_files) do
+		table.insert(result, {
+			filename = obj_filename,
+			type = "temporary",
+		})
+	end
+
+	return result
+end
+
+function wesh.get_stored_files()
+	return minetest.get_dir_list(wesh.models_path, false)
+end
+
+function wesh.get_temp_files()
+	return minetest.get_dir_list(wesh.temp_path, false)
+end
+
+function wesh.is_valid_obj_filename(obj_filename)
+	return obj_filename:match("^" .. wesh.gen_prefix .. ".-%.obj$")
+end
+
+function wesh.is_valid_matrix_filename(matrix_filename)
+	return matrix_filename:match("^" .. wesh.gen_prefix .. ".-%.obj%.matrix%.dat$")
+end
+
+-- ========================================================================
+-- file movement / copy
+-- ========================================================================
+
+function wesh.copy_file(source, dest)
+	local src_file = io.open(source, "rb")
+	if not src_file then 
+		return false, "copy_file() unable to open source for reading"
+	end
+	local src_data = src_file:read("*all")
+	src_file:close()
+
+	local dest_file = io.open(dest, "wb")
+	if not dest_file then 
+		return false, "copy_file() unable to open dest for writing"
+	end
+	dest_file:write(src_data)
+	dest_file:close()
+	return true, "files copied successfully"
+end
+
+function wesh.move_temp_files()
+	local meshes = wesh.get_temp_files()
+	for _, filename in ipairs(meshes) do
+		os.rename(wesh.temp_path .. "/" .. filename, wesh.models_path .. filename)
+	end
+end
+
+-- ========================================================================
+-- file deletion
+-- ========================================================================
+
+function wesh.delete_marked_objs()
+	for obj_filename, _ in pairs(wesh.retrieve_marked_objs()) do
+		wesh.delete_obj_fileset(wesh.models_path .. obj_filename)
+	end
+	storage:set_string("marked_objs", "")
+end
+
+function wesh.delete_obj_fileset(full_obj_filename)
+	os.remove(full_obj_filename)
+	os.remove(full_obj_filename .. ".dat")
+	os.remove(full_obj_filename .. ".matrix.dat")
+end
+
+function wesh.delete_temp_obj(obj_filename)
+	local full_obj_filename = wesh.temp_path .. "/" .. obj_filename
+	wesh.delete_obj_fileset(full_obj_filename)
+end
+
+-- ========================================================================
+-- file marking
+-- ========================================================================
+
+function wesh.retrieve_marked_objs()
+	local marked_objs = minetest.deserialize(storage:get_string("marked_objs"))
+	return type(marked_objs) == "table" and marked_objs or {}
+end
+
+function wesh.store_marked_objs(marked_objs)
+	storage:set_string("marked_objs", minetest.serialize(marked_objs))
+end
+
+function wesh.mark_obj_for_deletion(obj_filename)
+	local marked_objs = wesh.retrieve_marked_objs()
+	marked_objs[obj_filename] = 1
+	wesh.store_marked_objs(marked_objs)
+end
+
+function wesh.unmark_obj_for_deletion(obj_filename)
+	local marked_objs = wesh.retrieve_marked_objs()
+	marked_objs[obj_filename] = nil
+	wesh.store_marked_objs(marked_objs)
+end
+
+-- ========================================================================
+-- file loading
+-- ========================================================================
+
+function wesh.load_mod_meshes()
+	local meshes = wesh.get_stored_files()
+	for _, filename in ipairs(meshes) do
+		if wesh.is_valid_obj_filename(filename) then
+			wesh.load_mesh(filename)
+		end
+	end
+end
+
+function wesh.load_mesh(obj_filename)
+	local data = wesh.get_obj_filedata(obj_filename)
+	
+	local description = data.description or "Custom Woolen Mesh"
+	local variants = data.variants or { plain = "plain-16.png" }
+	
+	for variant, tile in pairs(variants) do
+		local props = {
+			drawtype = "mesh",
+			mesh = obj_filename,
+			paramtype = "light",
+			sunlight_propagates = true,
+			paramtype2 = "facedir",
+			description = description .. " (" .. variant .. ")",
+			tiles = { tile },
+			walkable = true,
+			groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 3 },
+		}
+		for prop, value in pairs(data) do
+			if prop ~= "variants" and prop ~= "description" then
+				props[prop] = value
+			end
+		end
+		if props.collision_box and not props.selection_box then
+			props.selection_box = props.collision_box
+		end
+		props.on_place = function(itemstack, placer, pointed_thing)
+			local playername = placer:get_player_name()
+			if not minetest.get_player_privs(playername).wesh_place then
+				wesh.notify(playername, "Insufficient privileges to place mesh nodes")
+				return
+			end
+			minetest.item_place(itemstack, placer, pointed_thing)
+		end
+		local nodename = wesh.create_nodename(obj_filename, variant)
+		minetest.register_node(nodename, props)
+	end
+end
+
+function wesh.get_obj_filedata(obj_filename)
+	local full_data_filename = wesh.models_path .. obj_filename .. ".dat"
+	
+	local file = io.open(full_data_filename, "rb")
+	
+	local data = {}
+	if file then
+		data = minetest.deserialize(file:read("*all"))
+		data = type(data) == "table" and data or {}
+		file:close()
+	end
+	return data
+end
+
+-- ========================================================================
+-- matrix import
+-- ========================================================================
+
+function wesh.get_content_id(nodename)
+	if not wesh.content_ids[nodename] then
+		wesh.content_ids[nodename] = minetest.get_content_id(nodename)
+	end
+	return wesh.content_ids[nodename]
+end
+
 function wesh.import_matrix(full_matrix_filename, playername)
 	if not full_matrix_filename then return end
 	local file = io.open(full_matrix_filename, "rb")
@@ -792,13 +1061,6 @@ function wesh.import_matrix(full_matrix_filename, playername)
 	return true
 end
 
-function wesh.get_content_id(nodename)
-	if not wesh.content_ids[nodename] then
-		wesh.content_ids[nodename] = minetest.get_content_id(nodename)
-	end
-	return wesh.content_ids[nodename]
-end
-
 function wesh.vacuum_canvas(playername)
 	
 	local canvas = wesh.player_canvas[playername]
@@ -833,249 +1095,6 @@ function wesh.vacuum_canvas(playername)
 	
 end
 
--- ========================================================================
--- mesh management helpers
--- ========================================================================
-
-function wesh.save_mesh_to_file(obj_filename, meshdata, description, playername, canvas)
-	
-	-- save .obj file
-	local full_filename = wesh.temp_path .. "/" .. obj_filename
-	local file, errmsg = io.open(full_filename, "wb")
-	if not file then
-		wesh.notify(playername, "Unable to write to file '" .. obj_filename .. "' from '" .. wesh.temp_path .. "' - error: " .. errmsg)
-		return false
-	end
-	file:write(meshdata)
-	file:close()
-	
-	-- save .dat file
-	local data_filename = obj_filename .. ".dat"
-	local full_data_filename = wesh.temp_path .. "/" .. data_filename
-	local file, errmsg = io.open(full_data_filename, "wb")
-	if not file then
-		wesh.notify(playername, "Unable to write to file '" .. data_filename .. "' from '" .. wesh.temp_path .. "' - error: " .. errmsg)
-		return false
-	end
-	file:write(wesh.prepare_data_file(description, canvas))
-	file:close()
-	
-	if canvas.generate_matrix then
-		-- save .matrix.dat file
-		local matrix_data_filename = obj_filename .. ".matrix.dat"
-		local full_matrix_data_filename = wesh.temp_path .. "/" .. matrix_data_filename
-		local file, errmsg = io.open(full_matrix_data_filename, "wb")
-		if not file then
-			wesh.notify(playername, "Unable to write to file '" .. matrix_data_filename .. "' from '" .. wesh.temp_path .. "' - error: " .. errmsg)
-			return false
-		end
-		file:write(minetest.serialize(wesh.matrix))
-		file:close()
-	end
-	
-	wesh.notify(playername, "Mesh saved to '" .. obj_filename .. "' in '" .. wesh.temp_path .. "'")
-	wesh.notify(playername, "Reload the world to move newly created mesh to the mod folder")
-	wesh.notify(playername, "Mesh stats: " .. canvas.voxel_count .. " voxels, " .. #wesh.vertices .. " vertices, " .. #wesh.faces .. " faces")
-	return true
-end
-
-function wesh.prepare_data_file(description, canvas)
-	local boxes = {}
-	wesh.merge_collision_boxes(canvas)	
-	for _, box in ipairs(canvas.boxes) do
-		table.insert(boxes, wesh.box_to_collision_box(box, canvas.size))
-	end
-	
-	local data = {
-		description = description,
-		variants = canvas.chosen_variants,
-		collision_box = {
-			type = "fixed",
-			fixed = boxes,
-		}
-	}
-	return wesh.serialize(data, 2)
-end
-
-function wesh.get_temp_files()
-	return minetest.get_dir_list(wesh.temp_path, false)
-end
-
-function wesh.get_stored_files()
-	return minetest.get_dir_list(wesh.models_path, false)
-end
-
-function wesh.get_all_files()
-	local all = wesh.get_temp_files()
-	for _, entry in pairs(wesh.get_stored_files()) do
-		table.insert(all, entry)
-	end
-	return all
-end
-
-function wesh.filter_non_obj(filelist)
-	local list = {}
-	for _, filename in pairs(filelist) do
-		if wesh.is_valid_obj_filename(filename) then
-			table.insert(list, filename)
-		end
-	end
-	return list
-end
-
-function wesh.filter_non_matrix(filelist)
-	local list = {}
-	for _, filename in pairs(filelist) do
-		if wesh.is_valid_matrix_filename(filename) then
-			table.insert(list, filename)
-		end
-	end
-	return list
-end
-
-function wesh.retrieve_marked_objs()
-	local marked_objs = minetest.deserialize(storage:get_string("marked_objs"))
-	return type(marked_objs) == "table" and marked_objs or {}
-end
-
-function wesh.store_marked_objs(marked_objs)
-	storage:set_string("marked_objs", minetest.serialize(marked_objs))
-end
-
-function wesh.mark_obj_for_deletion(obj_filename)
-	local marked_objs = wesh.retrieve_marked_objs()
-	marked_objs[obj_filename] = 1
-	wesh.store_marked_objs(marked_objs)
-end
-
-function wesh.unmark_obj_for_deletion(obj_filename)
-	local marked_objs = wesh.retrieve_marked_objs()
-	marked_objs[obj_filename] = nil
-	wesh.store_marked_objs(marked_objs)
-end
-
-function wesh.delete_temp_obj(obj_filename)
-	local full_obj_filename = wesh.temp_path .. "/" .. obj_filename
-	wesh._delete_obj_fileset(full_obj_filename)
-end
-
-function wesh._delete_obj_fileset(full_obj_filename)
-	os.remove(full_obj_filename)
-	os.remove(full_obj_filename .. ".dat")
-	os.remove(full_obj_filename .. ".matrix.dat")
-end
-
-function wesh._delete_marked_objs()
-	for obj_filename, _ in pairs(wesh.retrieve_marked_objs()) do
-		wesh._delete_obj_fileset(wesh.models_path .. obj_filename)
-	end
-	storage:set_string("marked_objs", "")
-end
-
-function wesh._move_temp_files()
-	local meshes = wesh.get_temp_files()
-	for _, filename in ipairs(meshes) do
-		os.rename(wesh.temp_path .. "/" .. filename, wesh.models_path .. filename)
-	end
-end
-
-function wesh.is_valid_obj_filename(obj_filename)
-	return obj_filename:match("^" .. wesh.gen_prefix .. ".-%.obj$")
-end
-
-function wesh.is_valid_matrix_filename(matrix_filename)
-	return matrix_filename:match("^" .. wesh.gen_prefix .. ".-%.obj%.matrix%.dat$")
-end
-
-function wesh.create_nodename(obj_filename, variant)
-	return "wesh:" .. obj_filename:gsub("[^%w]+", "_"):gsub("_obj", "") .. "_" .. variant 
-end
-
-function wesh.get_all_obj_files()
-	local stored_obj_files = wesh.filter_non_obj(wesh.get_stored_files())
-	local temp_obj_files = wesh.filter_non_obj(wesh.get_temp_files())
-	local marked_objs = wesh.retrieve_marked_objs()
-	local result = {}
-
-	for _, obj_filename in pairs(stored_obj_files) do
-		table.insert(result, {
-			filename = obj_filename,
-			type = marked_objs[obj_filename] and "pending deletion" or "stored",
-		})
-	end
-	
-	for _, obj_filename in pairs(temp_obj_files) do
-		table.insert(result, {
-			filename = obj_filename,
-			type = "temporary",
-		})
-	end
-
-	return result
-end
-
-function wesh.get_obj_filedata(obj_filename)
-	local full_data_filename = wesh.models_path .. obj_filename .. ".dat"
-	
-	local file = io.open(full_data_filename, "rb")
-	
-	local data = {}
-	if file then
-		data = minetest.deserialize(file:read("*all"))
-		data = type(data) == "table" and data or {}
-		file:close()
-	end
-	return data
-end
-
-function wesh._load_mod_meshes()
-	local meshes = wesh.get_stored_files()
-	for _, filename in ipairs(meshes) do
-		if wesh.is_valid_obj_filename(filename) then
-			wesh._load_mesh(filename)
-		end
-	end
-end
-
-function wesh._load_mesh(obj_filename)
-	local data = wesh.get_obj_filedata(obj_filename)
-	
-	local description = data.description or "Custom Woolen Mesh"
-	local variants = data.variants or { plain = "plain-16.png" }
-	
-	for variant, tile in pairs(variants) do
-		local props = {
-			drawtype = "mesh",
-			mesh = obj_filename,
-			paramtype = "light",
-			sunlight_propagates = true,
-			paramtype2 = "facedir",
-			description = description .. " (" .. variant .. ")",
-			tiles = { tile },
-			walkable = true,
-			groups = { snappy = 2, choppy = 2, oddly_breakable_by_hand = 3 },
-		}
-		for prop, value in pairs(data) do
-			if prop ~= "variants" and prop ~= "description" then
-				props[prop] = value
-			end
-		end
-		if props.collision_box and not props.selection_box then
-			props.selection_box = props.collision_box
-		end
-		props.on_place = function(itemstack, placer, pointed_thing)
-			local playername = placer:get_player_name()
-			if not minetest.get_player_privs(playername).wesh_place then
-				wesh.notify(playername, "Insufficient privileges to place mesh nodes")
-				return
-			end
-			minetest.item_place(itemstack, placer, pointed_thing)
-		end
-		local nodename = wesh.create_nodename(obj_filename, variant)
-		minetest.register_node(nodename, props)
-	end
-end
-
 -- ========================================================================
 -- collision box computers
 -- ========================================================================
@@ -1228,15 +1247,19 @@ function wesh.update_secondary_collision_box(rel_pos, box)
 	end
 end
 
-
 -- ========================================================================
--- mesh generation helpers
+-- mesh generation
 -- ========================================================================
 
 function wesh.construct_face(rel_pos, canvas, texture_vertices, facename, vertices, normal_index)
+	local function out_of_bounds(pos)
+		return pos.x < 1 or pos.x > canvas.size
+			or pos.y < 1 or pos.y > canvas.size
+			or pos.z < 1 or pos.z > canvas.size
+	end
 	local normal = wesh.face_normals[normal_index]
 	local hider_pos = vector.add(rel_pos, normal)
-	if not wesh.out_of_bounds(hider_pos, canvas.size) and wesh.get_voxel_color(hider_pos) ~= "air" then return end
+	if not out_of_bounds(hider_pos) and wesh.get_voxel_color(hider_pos) ~= "air" then return end
 	local face_line = { "f " }
 	for i, vertex in ipairs(vertices) do
 		local index = wesh.get_vertex_index(rel_pos, canvas.size, vertex)
@@ -1359,6 +1382,14 @@ end
 -- generic helpers
 -- ========================================================================
 
+function wesh.apply_transform(pos, transform)
+	return {
+		x = pos.x * transform[1][1] + pos.y * transform[1][2] + pos.z * transform[1][3],
+		y = pos.x * transform[2][1] + pos.y * transform[2][2] + pos.z * transform[2][3],
+		z = pos.x * transform[3][1] + pos.y * transform[3][2] + pos.z * transform[3][3],
+	}
+end
+
 function wesh.axis_min(pos1, pos2)
 	local result = {}
 	for axis, value in pairs(pos1) do
@@ -1381,21 +1412,19 @@ function wesh.check_plain(text)
 	return text:gsub("[^%w]+", "_"):lower()
 end
 
-function wesh.copy_file(source, dest)
-	local src_file = io.open(source, "rb")
-	if not src_file then 
-		return false, "copy_file() unable to open source for reading"
+function wesh.matrix_multiply(a, b)
+	local res = {}
+	for row = 1, #a do
+		res[row] = {}
+		for col = 1, #b[1] do
+			local num = a[row][1] * b[1][col]
+			for i = 2, #a[1] do
+				num = num + a[row][i] * b[i][col]
+			end
+			res[row][col] = num
+		end
 	end
-	local src_data = src_file:read("*all")
-	src_file:close()
-
-	local dest_file = io.open(dest, "wb")
-	if not dest_file then 
-		return false, "copy_file() unable to open dest for writing"
-	end
-	dest_file:write(src_data)
-	dest_file:close()
-	return true, "files copied successfully"
+	return res
 end
 
 function wesh.merge_tables(t1, t2)
@@ -1408,12 +1437,6 @@ function wesh.notify(playername, message)
 	minetest.chat_send_player(playername, "[wesh] " .. message)
 end
 
-function wesh.out_of_bounds(pos, canv_size)
-	return pos.x < 1 or pos.x > canv_size
-		or pos.y < 1 or pos.y > canv_size
-		or pos.z < 1 or pos.z > canv_size
-end
-
 function wesh.serialize(object, max_wrapping)
 	local function helper(obj, max_depth, depth, seen)
 		if not depth then 
@@ -1480,6 +1503,10 @@ function wesh.serialize(object, max_wrapping)
 	return "return " .. helper(object, max_wrapping)
 end
 
+function wesh.transform(facedir, pos)
+	return wesh.apply_transform(pos, wesh.facedir_transform[facedir])
+end
+
 function wesh.traverse_matrix(callback, boundary, ...)
 	if type(boundary) == "table" then
 		for x = boundary.min.x, boundary.max.x do
@@ -1500,4 +1527,4 @@ function wesh.traverse_matrix(callback, boundary, ...)
 	end
 end
 
-wesh._init()
+wesh.init()