Optimize textures and model (use *.b3d instead *.x)

mods/default/player.lua

@@ -15,7 +15,7 @@ function default.player_register_model(name, def)
 end
 
 -- Default player appearance
-default.player_register_model("character.x", {
+default.player_register_model("character.b3d", {
 	animation_speed = 30,
 	textures = {"character.png", },
 	animations = {
@@ -93,7 +93,7 @@ end
 -- Update appearance when the player joins
 minetest.register_on_joinplayer(function(player)
 	default.player_attached[player:get_player_name()] = false
-	default.player_set_model(player, "character.x")
+	default.player_set_model(player, "character.b3d")
 	player:set_local_animation({x=0, y=79}, {x=168, y=187}, {x=189, y=198}, {x=200, y=219}, 30)
 	
 	-- set GUI