Add transparent test nodes

init.lua

@@ -120,6 +120,30 @@ minetest.register_node("perlin_explorer:node_negative", {
 	-- Force-drop without metadata to avoid spamming the inventory
 	drop = "perlin_explorer:node_negative",
 })
+
+minetest.register_node("perlin_explorer:transp", {
+	description = S("Transparent Perlin Test Node"),
+	paramtype = "light",
+	drawtype = "allfaces",
+	sunlight_propagates = true,
+	paramtype2 = paramtype2,
+	tiles = {"perlin_explorer_transp.png"},
+	palette = "perlin_explorer_node_palette.png",
+	groups = { dig_immediate = 3 },
+	drop = "perlin_explorer:transp",
+})
+minetest.register_node("perlin_explorer:transp_negative", {
+	description = S("Transparent Negative Perlin Test Node"),
+	paramtype = "light",
+	drawtype = "allfaces",
+	sunlight_propagates = true,
+	paramtype2 = paramtype2,
+	tiles = {"perlin_explorer_transp_neg.png"},
+	palette = "perlin_explorer_node_palette_neg.png",
+	groups = { dig_immediate = 3 },
+	drop = "perlin_explorer:transp_negative",
+})
+
 minetest.register_tool("perlin_explorer:getter", {
 	description = S("Perlin Value Getter"),
 	_tt_help = S("Punch a node to display the Perlin noise value at this position"),