Add performance test nodes, using complex meshes. (#13161)

games/devtest/mods/testnodes/init.lua

@@ -4,6 +4,7 @@ dofile(path.."/drawtypes.lua")
 dofile(path.."/meshes.lua")
 dofile(path.."/nodeboxes.lua")
 dofile(path.."/param2.lua")
+dofile(path.."/performance_test_nodes.lua")
 dofile(path.."/properties.lua")
 dofile(path.."/liquids.lua")
 dofile(path.."/light.lua")

games/devtest/mods/testnodes/performance_test_nodes.lua

@@ -0,0 +1,59 @@
+-- Performance test mesh nodes
+
+local S = minetest.get_translator("testnodes")
+
+-- Complex mesh
+minetest.register_node("testnodes:performance_mesh_clip", {
+	description = S("Performance Test Node") .. "\n" .. S("Marble with 'clip' transparency"),
+	drawtype = "mesh",
+	mesh = "testnodes_marble_glass.obj",
+	tiles = {"testnodes_marble_glass.png"},
+	paramtype = "light",
+	use_texture_alpha = "clip",
+
+	groups = {dig_immediate=3},
+})
+
+-- Complex mesh, alpha blending
+minetest.register_node("testnodes:performance_mesh_blend", {
+	description = S("Performance Test Node") .. "\n" .. S("Marble with 'blend' transparency"),
+	drawtype = "mesh",
+	mesh = "testnodes_marble_glass.obj",
+	tiles = {"testnodes_marble_glass.png"},
+	paramtype = "light",
+	use_texture_alpha = "blend",
+
+	groups = {dig_immediate=3},
+})
+
+-- Overlay
+minetest.register_node("testnodes:performance_overlay_clip", {
+	description = S("Performance Test Node") .. "\n" .. S("Marble with overlay with 'clip' transparency") .. "\n" .. S("Palette for demonstration"),
+	drawtype = "mesh",
+	mesh = "testnodes_marble_metal.obj",
+	tiles = {"testnodes_marble_metal.png"},
+	overlay_tiles = {{name = "testnodes_marble_metal_overlay.png", color = "white"}},
+	paramtype = "light",
+	paramtype2 = "color",
+	palette = "testnodes_palette_metal.png",
+	color = "#705216";
+	use_texture_alpha = "clip",
+
+	groups = {dig_immediate=3},
+})
+
+-- Overlay
+minetest.register_node("testnodes:performance_overlay_blend", {
+	description = S("Performance Test Node") .. "\n" .. S("Marble with overlay with 'blend' transparency") .. "\n" .. S("Palette for demonstration"),
+	drawtype = "mesh",
+	mesh = "testnodes_marble_metal.obj",
+	tiles = {"testnodes_marble_metal.png"},
+	overlay_tiles = {{name = "testnodes_marble_metal_overlay.png", color = "white"}},
+	paramtype = "light",
+	paramtype2 = "color",
+	palette = "testnodes_palette_metal.png",
+	color = "#705216";
+	use_texture_alpha = "blend",
+
+	groups = {dig_immediate=3},
+})