Use actual mesh and skin for player hand.

mods/nc_player_hand/hand.lua

@@ -5,6 +5,8 @@ local math_pow
     = math.pow
 -- LUALOCALS > ---------------------------------------------------------
 
+local modname = minetest.get_current_modname()
+
 local toolcaps = nodecore.toolcaps({
 		uses = 0,
 		crumbly = 1,
@@ -21,7 +23,20 @@ end
 
 minetest.register_item(":", {
 		["type"] = "none",
-		wield_image = "nc_player_hand.png",
-		wield_scale = {x = 4, y = 8, z = 3},
 		tool_capabilities = toolcaps
 	})
+
+local scale = 2
+minetest.register_node(modname .. ":hand", {
+		drawtype = "mesh",
+		mesh = modname .. ".obj",
+		tiles = {"nc_player_model_base.png"},
+		wield_scale = {x = scale, y = scale, z = scale},
+		virtual_item = true
+	})
+
+minetest.register_on_joinplayer(function(player)
+		local inv = player:get_inventory()
+		inv:set_size("hand", 1)
+		inv:set_stack("hand", 1, modname .. ":hand")
+	end)

mods/nc_player_hand/mod.conf

@@ -1 +1 @@
-depends = nc_api_all
+depends = nc_api_all, nc_player_model

mods/nc_player_hand/models/nc_player_hand.obj

@@ -0,0 +1,45 @@
+# Blender v2.79 (sub 0) OBJ File: 'nc_player_hand.blend'
+# www.blender.org
+mtllib nc_player_hand.mtl
+o Cube
+v -0.125000 -1.000000 -0.125000
+v 0.125000 -1.000000 -0.125000
+v 0.125000 -1.000000 0.125000
+v -0.125000 -1.000000 0.125000
+v -0.125000 -0.250000 -0.125000
+v 0.125000 -0.250000 -0.125000
+v 0.125000 -0.250000 0.125000
+v -0.125000 -0.250000 0.125000
+vt 0.750051 0.374966
+vt 0.750068 0.499966
+vt 0.687568 0.500000
+vt 0.687551 0.375000
+vt 0.750000 0.375000
+vt 0.812500 0.375000
+vt 0.812500 0.500000
+vt 0.750000 0.500000
+vt 0.750000 0.375000
+vt 0.750000 0.000000
+vt 0.812500 0.000000
+vt 0.812500 0.375000
+vt 0.812551 0.375068
+vt 0.812534 0.000068
+vt 0.875034 0.000034
+vt 0.875051 0.375034
+vt 0.625051 0.375034
+vt 0.625034 0.000034
+vt 0.687534 -0.000000
+vn 0.0000 -1.0000 -0.0000
+vn 0.0000 1.0000 0.0000
+vn 0.0000 0.0000 -1.0000
+vn 1.0000 -0.0000 0.0000
+vn -0.0000 -0.0000 1.0000
+vn -1.0000 0.0000 -0.0000
+usemtl Material
+s off
+f 1/1/1 2/2/1 3/3/1 4/4/1
+f 5/5/2 8/6/2 7/7/2 6/8/2
+f 1/9/3 5/10/3 6/11/3 2/12/3
+f 2/13/4 6/14/4 7/15/4 3/16/4
+f 3/17/5 7/18/5 8/19/5 4/4/5
+f 5/10/6 1/1/6 4/4/6 8/19/6