Lighting work. No good news.

mapgen.lua

@@ -142,7 +142,8 @@ end
 local pod_size = {x=300, y=100, z=200}
 local half_pod = {x=math_floor(pod_size.x / 2), y=math_floor(pod_size.y / 2), z=math_floor(pod_size.z / 2)}
 local bridge_size = 50
-local fcsize = {x=pod_size.x + bridge_size, y=pod_size.y + bridge_size, z=pod_size.z + bridge_size}
+local vert_sep = 250
+local fcsize = {x=pod_size.x + bridge_size, y=pod_size.y + vert_sep, z=pod_size.z + bridge_size}
 local bevel = half_pod.y
 local room_size = 20
 local control_off = math_floor(room_size / 4)
@@ -189,6 +190,7 @@ local function place_schematic(pos, schem, center)
 								local prob = schem.data[isch].prob or schem.data[isch].param1 or 255
 								if prob >= math.random(255) and schem.data[isch].name ~= "air" then
 									data[ivm] = node[schem.data[isch].name]
+									lightmap[ivm] = 0
 								end
 								local param2 = schem.data[isch].param2 or 0
 								p2data[ivm] = param2
@@ -281,7 +283,7 @@ local function generate(p_minp, p_maxp, seed)
 	a = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
 	csize = vector.add(vector.subtract(maxp, minp), 1)
 
-	vm:set_lighting({day = 15, night = 0}, minp, maxp)
+	--vm:set_lighting({day = 0, night = 0}, minp, maxp)
 	lightmap = vm:get_light_data()
 
 	local ground = half_pod.y
@@ -313,6 +315,7 @@ local function generate(p_minp, p_maxp, seed)
 				local dy = y - minp.y
 				local fdy = y % fcsize.y
 				local py = math_floor(y / fcsize.y)
+				lightmap[ivm] = 0
 				if py ~= last_py or px ~= last_px or pz ~= last_pz then
 					biome, cave_lining = get_biome(x, y, z)
 				end
@@ -437,7 +440,7 @@ local function generate(p_minp, p_maxp, seed)
 						--data[ivm] = node["air"]
 					end
 					in_cave = true
-					--lightmap[ivm] = 0
+					lightmap[ivm] = 0
 				elseif cave_lining and cave[index3d] ^ 2 > (biome == "underground" and 0.4 or 1.2 - math.sin(fdy / (half_pod.y * 0.2))) then
 					data[ivm] = node[cave_lining]
 					lightmap[ivm] = 0

nodes.lua

@@ -40,6 +40,10 @@ node = loud_walking.clone_node("loud_walking:sky_scrith")
 node.tiles = {"loud_walking_glass_detail.png"}
 minetest.register_node("loud_walking:transparent_scrith", node)
 
+node = loud_walking.clone_node("air")
+node.light_source = 15
+minetest.register_node("loud_walking:light_air", node)
+
 minetest.register_node("loud_walking:control_floor", {
 	description = "Floor",
 	paramtype = "light",