Visual pass: grid materials, corridor lights, emissive props, target marker, objectives

Portal-style triplanar grid on all structure, omni lighting per segment,
emissive glow on every interactable, floating look-target marker, socket
gets a visible empty-ring slot, HUD gains an OBJECTIVE tracker line.
Integration playthrough still 19/19.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/interactables.gd

@@ -19,6 +19,9 @@ class Door extends StaticBody3D:
 		mi.position.y = height / 2.0
 		var mat := StandardMaterial3D.new()
 		mat.albedo_color = tint
+		mat.emission_enabled = true
+		mat.emission = tint
+		mat.emission_energy_multiplier = 0.3
 		mi.material_override = mat
 		add_child(mi)
 		var col := CollisionShape3D.new()
@@ -61,6 +64,9 @@ class Pickup extends Node3D:
 		mi.mesh = m
 		var mat := StandardMaterial3D.new()
 		mat.albedo_color = tint
+		mat.emission_enabled = true
+		mat.emission = tint
+		mat.emission_energy_multiplier = 0.6
 		mi.material_override = mat
 		add_child(mi)
 
@@ -93,6 +99,9 @@ class Bucket extends Node3D:
 		mi.position.y = 0.21
 		var mat := StandardMaterial3D.new()
 		mat.albedo_color = Color(0.35, 0.4, 0.5)
+		mat.emission_enabled = true
+		mat.emission = Color(0.35, 0.5, 0.8)
+		mat.emission_energy_multiplier = 0.5
 		mi.material_override = mat
 		add_child(mi)
 		# the leaky bucket IS just a decaying exposable state (GDD)
@@ -115,12 +124,26 @@ class Socket extends Node3D:
 		add_to_group("interactable")
 		var mi := MeshInstance3D.new()
 		var m := BoxMesh.new()
-		m.size = Vector3(0.5, 0.5, 0.25)
+		m.size = Vector3(0.8, 0.8, 0.15)
 		mi.mesh = m
 		var mat := StandardMaterial3D.new()
-		mat.albedo_color = Color(0.1, 0.1, 0.12)
+		mat.albedo_color = Color(0.2, 0.2, 0.24)
 		mi.material_override = mat
 		add_child(mi)
+		var ring := MeshInstance3D.new()
+		var t := TorusMesh.new()
+		t.inner_radius = 0.16
+		t.outer_radius = 0.26
+		ring.mesh = t
+		ring.rotation.x = PI / 2.0
+		ring.position.z = -0.1
+		var rmat := StandardMaterial3D.new()
+		rmat.albedo_color = Color(0.95, 0.55, 0.1)
+		rmat.emission_enabled = true
+		rmat.emission = Color(0.95, 0.55, 0.1)
+		rmat.emission_energy_multiplier = 1.4
+		ring.material_override = rmat
+		add_child(ring)
 
 	func interact(droid: Node3D) -> void:
 		if filled:
@@ -137,7 +160,7 @@ class Socket extends Node3D:
 			m.height = 0.12
 			mi.mesh = m
 			mi.rotation.x = PI / 2.0
-			mi.position.z = 0.18
+			mi.position.z = -0.18
 			add_child(mi)
 			door.open()
 			droid.toast("WHEEL DONATED. DOOR BUS COMPLETE. MOBILITY REDUCED.")
@@ -161,6 +184,9 @@ class Tank extends Node3D:
 		mi.position.y = 0.6
 		var mat := StandardMaterial3D.new()
 		mat.albedo_color = Color(0.2, 0.3, 0.45)
+		mat.emission_enabled = true
+		mat.emission = Color(0.2, 0.4, 0.7)
+		mat.emission_energy_multiplier = 0.5
 		mi.material_override = mat
 		add_child(mi)
 
@@ -192,6 +218,9 @@ class Plate extends Node3D:
 		mi.mesh = m
 		var mat := StandardMaterial3D.new()
 		mat.albedo_color = Color(0.6, 0.55, 0.2)
+		mat.emission_enabled = true
+		mat.emission = Color(0.8, 0.7, 0.2)
+		mat.emission_energy_multiplier = 0.6
 		mi.material_override = mat
 		add_child(mi)
 

src/main.gd

@@ -29,6 +29,7 @@ var sun_light: DirectionalLight3D
 
 var drum: Node3D
 var drum_turned := false
+var _marker: Label3D
 
 var t_sol := 10.0  # start mid-day
 var is_day := true
@@ -45,6 +46,28 @@ func _ready() -> void:
 	_build_objects()
 	_build_droid()
 	_build_hud()
+	if "--shot" in OS.get_cmdline_user_args():
+		_photo_tour()
+
+
+func _photo_tour() -> void:
+	var spots := [
+		[Vector3(0, 0.2, 2), PI],       # spawn, facing door1
+		[Vector3(1.4, 0.2, 6.2), PI],   # socket close-up
+		[Vector3(0, 0.2, 9), PI],       # segment B: post + bus gap
+		[Vector3(-0.5, 0.2, 17.5), PI], # segment C: drum bay + puddle
+		[Vector3(-1.5, 0.2, 27), PI],   # segment D: valve + tank
+		[Vector3(0, 0.2, 35), PI],      # segment E: skylight + solar
+	]
+	for i in spots.size():
+		droid.global_position = spots[i][0]
+		droid.rotation.y = spots[i][1]
+		for f in 20:
+			await get_tree().process_frame
+		await RenderingServer.frame_post_draw
+		var img := get_viewport().get_texture().get_image()
+		img.save_png("/tmp/exposure_shot_%d.png" % i)
+	get_tree().quit()
 
 
 # ---------- input ----------
@@ -65,6 +88,20 @@ func _init_input() -> void:
 
 # ---------- construction helpers ----------
 
+var _grid_tex: ImageTexture
+
+
+func grid_tex() -> ImageTexture:
+	if not _grid_tex:
+		var img := Image.create(64, 64, false, Image.FORMAT_RGB8)
+		for y in 64:
+			for x in 64:
+				var line := x % 16 == 0 or y % 16 == 0
+				img.set_pixel(x, y, Color(0.5, 0.5, 0.5) if line else Color(0.92, 0.92, 0.92))
+		_grid_tex = ImageTexture.create_from_image(img)
+	return _grid_tex
+
+
 func mat(col: Color) -> StandardMaterial3D:
 	if not _mats.has(col):
 		var m := StandardMaterial3D.new()
@@ -73,12 +110,36 @@ func mat(col: Color) -> StandardMaterial3D:
 	return _mats[col]
 
 
-func box(pos: Vector3, size: Vector3, col: Color, parent: Node3D = null) -> CSGBox3D:
+func struct_mat(col: Color) -> StandardMaterial3D:
+	var key := "g" + str(col)
+	if not _mats.has(key):
+		var m := StandardMaterial3D.new()
+		m.albedo_color = col
+		m.albedo_texture = grid_tex()
+		m.uv1_triplanar = true
+		m.uv1_scale = Vector3(0.25, 0.25, 0.25)  # 1m grid cells
+		_mats[key] = m
+	return _mats[key]
+
+
+func glow(col: Color, energy := 0.7) -> StandardMaterial3D:
+	var key := "e" + str(col) + str(energy)
+	if not _mats.has(key):
+		var m := StandardMaterial3D.new()
+		m.albedo_color = col
+		m.emission_enabled = true
+		m.emission = col
+		m.emission_energy_multiplier = energy
+		_mats[key] = m
+	return _mats[key]
+
+
+func box(pos: Vector3, size: Vector3, col: Color, parent: Node3D = null, grid := false) -> CSGBox3D:
 	var b := CSGBox3D.new()
 	b.size = size
 	b.position = pos
 	b.use_collision = true
-	b.material = mat(col)
+	b.material = struct_mat(col) if grid else mat(col)
 	(parent if parent else self).add_child(b)
 	return b
 
@@ -95,10 +156,10 @@ func sign3d(text: String, pos: Vector3, rot_y := PI, size := 30, col := Color(0.
 
 
 func divider(z: float) -> void:
-	var c := Color(0.3, 0.3, 0.34)
+	var c := Color(0.45, 0.46, 0.52)
-	box(Vector3(-2.6, 2, z), Vector3(2.8, 4, 0.3), c)
+	box(Vector3(-2.6, 2, z), Vector3(2.8, 4, 0.3), c, null, true)
-	box(Vector3(2.6, 2, z), Vector3(2.8, 4, 0.3), c)
+	box(Vector3(2.6, 2, z), Vector3(2.8, 4, 0.3), c, null, true)
-	box(Vector3(0, 3.5, z), Vector3(2.4, 1, 0.3), c)
+	box(Vector3(0, 3.5, z), Vector3(2.4, 1, 0.3), c, null, true)
 
 
 func make_door(z: float) -> Node3D:
@@ -133,35 +194,50 @@ func _build_env() -> void:
 	sun_light.light_energy = 1.2
 	add_child(sun_light)
 
+	# corridor lighting — segments feel lit, not fog-grey
+	for z in [4.0, 12.0, 18.5, 24.0, 30.0, 37.0, 42.5]:
+		var o := OmniLight3D.new()
+		o.position = Vector3(0, 3.4, z)
+		o.omni_range = 10.0
+		o.light_energy = 1.1
+		o.light_color = Color(1.0, 0.96, 0.88)
+		add_child(o)
+	for p in [Vector3(8, 6.5, 22), Vector3(6.4, 3.2, 25.8), Vector3(-5.0, 3.0, 24)]:
+		var o := OmniLight3D.new()
+		o.position = p
+		o.omni_range = 8.0
+		o.light_energy = 1.0
+		add_child(o)
+
 
 func _build_geometry() -> void:
-	var wall := Color(0.28, 0.29, 0.33)
+	var wall := Color(0.5, 0.52, 0.58)
 	# floor
-	box(Vector3(3, -0.15, 22.5), Vector3(18.6, 0.3, 46), Color(0.36, 0.36, 0.38))
+	box(Vector3(3, -0.15, 22.5), Vector3(18.6, 0.3, 46), Color(0.62, 0.62, 0.65), null, true)
 	# left wall x=-4.15, niche gap z 23.4..24.6
-	box(Vector3(-4.15, 2, 11.45), Vector3(0.3, 4, 23.9), wall)
+	box(Vector3(-4.15, 2, 11.45), Vector3(0.3, 4, 23.9), wall, null, true)
-	box(Vector3(-4.15, 2, 33.55), Vector3(0.3, 4, 17.9), wall)
+	box(Vector3(-4.15, 2, 33.55), Vector3(0.3, 4, 17.9), wall, null, true)
 	# relay niche (behind left wall) + bars
-	box(Vector3(-5.8, 2, 24), Vector3(0.3, 4, 1.6), wall)
+	box(Vector3(-5.8, 2, 24), Vector3(0.3, 4, 1.6), wall, null, true)
-	box(Vector3(-5.0, 2, 23.4), Vector3(1.6, 4, 0.3), wall)
+	box(Vector3(-5.0, 2, 23.4), Vector3(1.6, 4, 0.3), wall, null, true)
-	box(Vector3(-5.0, 2, 24.6), Vector3(1.6, 4, 0.3), wall)
+	box(Vector3(-5.0, 2, 24.6), Vector3(1.6, 4, 0.3), wall, null, true)
 	box(Vector3(-4.15, 1, 23.8), Vector3(0.1, 2, 0.1), Color(0.15, 0.15, 0.15))
 	box(Vector3(-4.15, 1, 24.2), Vector3(0.1, 2, 0.1), Color(0.15, 0.15, 0.15))
 	# right wall x=4.15: gaps for drum bay (z 20..24) and bonus bay (z 25..26.6)
-	box(Vector3(4.15, 2, 9.75), Vector3(0.3, 4, 20.5), wall)
+	box(Vector3(4.15, 2, 9.75), Vector3(0.3, 4, 20.5), wall, null, true)
-	box(Vector3(4.15, 2, 24.5), Vector3(0.3, 4, 1.0), wall)
+	box(Vector3(4.15, 2, 24.5), Vector3(0.3, 4, 1.0), wall, null, true)
-	box(Vector3(4.15, 2, 34.55), Vector3(0.3, 4, 15.9), wall)
+	box(Vector3(4.15, 2, 34.55), Vector3(0.3, 4, 15.9), wall, null, true)
 	# bonus bay shell
-	box(Vector3(8.65, 2, 25.8), Vector3(0.3, 4, 3.0), wall)
+	box(Vector3(8.65, 2, 25.8), Vector3(0.3, 4, 3.0), wall, null, true)
-	box(Vector3(6.4, 2, 24.9), Vector3(4.4, 4, 0.3), wall)
+	box(Vector3(6.4, 2, 24.9), Vector3(4.4, 4, 0.3), wall, null, true)
-	box(Vector3(6.4, 2, 26.7), Vector3(4.4, 4, 0.3), wall)
+	box(Vector3(6.4, 2, 26.7), Vector3(4.4, 4, 0.3), wall, null, true)
 	# drum bay outer shell
-	box(Vector3(12.15, 3.5, 22), Vector3(0.3, 8, 6), wall)
+	box(Vector3(12.15, 3.5, 22), Vector3(0.3, 8, 6), wall, null, true)
-	box(Vector3(8, 3.5, 19.3), Vector3(8, 8, 0.3), wall)
+	box(Vector3(8, 3.5, 19.3), Vector3(8, 8, 0.3), wall, null, true)
-	box(Vector3(8, 3.5, 24.7), Vector3(8, 8, 0.3), wall)
+	box(Vector3(8, 3.5, 24.7), Vector3(8, 8, 0.3), wall, null, true)
 	# end walls
-	box(Vector3(0, 2, -0.5), Vector3(8.6, 4, 0.3), wall)
+	box(Vector3(0, 2, -0.5), Vector3(8.6, 4, 0.3), wall, null, true)
-	box(Vector3(0, 2, 44.5), Vector3(8.6, 4, 0.3), wall)
+	box(Vector3(0, 2, 44.5), Vector3(8.6, 4, 0.3), wall, null, true)
 	# dividers + doors
 	for z in [8.0, 16.0, 26.0, 34.0, 40.0]:
 		divider(z)
@@ -189,14 +265,14 @@ func _build_objects() -> void:
 		Vector3(-2.0, 2.2, 4.0), PI, 22, Color(1.0, 0.75, 0.3))
 
 	# --- segment B: charge post + be-the-wire gap ---
-	box(Vector3(-2.5, 0.9, 10.5), Vector3(0.5, 1.8, 0.5), Color(0.2, 0.5, 0.6))
+	box(Vector3(-2.5, 0.9, 10.5), Vector3(0.5, 1.8, 0.5), Color(0.2, 0.5, 0.6)).material = glow(Color(0.15, 0.7, 0.85))
 	var post1 := ElementField.make("electricity", 1.3, Color(0.3, 1.0, 1.0, 0.12))
 	post1.position = Vector3(-2.5, 0.9, 10.5)
 	add_child(post1)
 	sign3d("CHARGE POST", Vector3(-2.5, 2.3, 10.2))
 
 	for x in [-1.0, 1.0]:
-		box(Vector3(x, 1.0, 15.3), Vector3(0.25, 2.0, 0.25), Color(0.55, 0.55, 0.6))
+		box(Vector3(x, 1.0, 15.3), Vector3(0.25, 2.0, 0.25), Color(0.55, 0.55, 0.6)).material = glow(Color(0.8, 0.8, 0.5), 0.5)
 	var contact_trans := [{"from": "idle", "to": "hot", "element": "electricity",
 		"duration": 0.15, "decay_to": "idle", "decay_s": 0.6}]
 	contact_a = make_exposable("BUS CONTACT A", "idle", contact_trans.duplicate(true), Vector3(-1.0, 1.0, 15.3))
@@ -211,7 +287,7 @@ func _build_objects() -> void:
 	sign3d("SPARE MOBILITY UNIT — GC CAT. 6601-W", Vector3(2.5, 1.4, 17.8))
 
 	# --- segment C: post 2, drum bay, puddle + relay ---
-	box(Vector3(-2.8, 0.9, 20.5), Vector3(0.5, 1.8, 0.5), Color(0.2, 0.5, 0.6))
+	box(Vector3(-2.8, 0.9, 20.5), Vector3(0.5, 1.8, 0.5), Color(0.2, 0.5, 0.6)).material = glow(Color(0.15, 0.7, 0.85))
 	var post2 := ElementField.make("electricity", 1.3, Color(0.3, 1.0, 1.0, 0.12))
 	post2.position = Vector3(-2.8, 0.9, 20.5)
 	add_child(post2)
@@ -236,7 +312,7 @@ func _build_objects() -> void:
 	crate.position = Vector3(-2.6, 2.65, 0)
 	drum.add_child(crate)
 
-	box(Vector3(3.7, 0.7, 18.6), Vector3(0.3, 1.4, 0.3), Color(0.5, 0.4, 0.2))
+	box(Vector3(3.7, 0.7, 18.6), Vector3(0.3, 1.4, 0.3), Color(0.5, 0.4, 0.2)).material = glow(Color(0.9, 0.6, 0.15), 0.5)
 	drum_switch = make_exposable("DRUM MOTOR BUS", "idle",
 		[{"from": "idle", "to": "active", "element": "electricity",
 		  "duration": 0.8, "permanent": true}],
@@ -261,7 +337,7 @@ func _build_objects() -> void:
 	puddle_live.enabled = false
 	add_child(puddle_live)
 
-	box(Vector3(-5.0, 1.0, 24), Vector3(0.4, 0.4, 0.4), Color(0.6, 0.3, 0.3))
+	box(Vector3(-5.0, 1.0, 24), Vector3(0.4, 0.4, 0.4), Color(0.6, 0.3, 0.3)).material = glow(Color(0.9, 0.25, 0.2), 0.6)
 	relay = make_exposable("SLUICE RELAY", "open",
 		[{"from": "open", "to": "tripped", "element": "electricity",
 		  "duration": 1.0, "permanent": true}],
@@ -287,8 +363,8 @@ func _build_objects() -> void:
 		Vector3(7.2, 2.0, 25.8), PI / 2.0, 24, Color(1.0, 0.75, 0.3))
 
 	# --- segment D: valve, bucket, tank ---
-	box(Vector3(-3.8, 1.4, 28), Vector3(0.5, 0.5, 0.5), Color(0.3, 0.5, 0.7))
+	box(Vector3(-3.8, 1.4, 28), Vector3(0.5, 0.5, 0.5), Color(0.3, 0.5, 0.7)).material = glow(Color(0.25, 0.5, 0.9), 0.5)
-	box(Vector3(-3.4, 0.9, 28), Vector3(0.12, 1.6, 0.12), Color(0.3, 0.5, 0.9))  # stream
+	box(Vector3(-3.4, 0.9, 28), Vector3(0.12, 1.6, 0.12), Color(0.3, 0.5, 0.9)).material = glow(Color(0.3, 0.55, 1.0), 0.9)  # stream
 	var valve := ElementField.make("water", 1.3, Color(0.2, 0.4, 1.0, 0.10))
 	valve.position = Vector3(-3.3, 0.8, 28)
 	add_child(valve)
@@ -310,6 +386,7 @@ func _build_objects() -> void:
 	sun_field.position = Vector3(0, 2.2, 37)
 	add_child(sun_field)
 	var panel := box(Vector3(1.5, 1.5, 37.3), Vector3(1.2, 0.8, 0.1), Color(0.1, 0.15, 0.4))
+	panel.material = glow(Color(0.15, 0.25, 0.7), 0.5)
 	panel.rotation.x = -0.5
 	solar = make_exposable("SOLAR CELL", "unpowered",
 		[{"from": "unpowered", "to": "powered", "element": "light",
@@ -354,6 +431,15 @@ func _build_hud() -> void:
 	cross.add_theme_color_override("font_color", Color(0.55, 1.0, 0.6, 0.7))
 	cl.add_child(cross)
 
+	_marker = Label3D.new()
+	_marker.text = "▼"
+	_marker.font_size = 72
+	_marker.modulate = Color(0.55, 1.0, 0.6)
+	_marker.billboard = BaseMaterial3D.BILLBOARD_ENABLED
+	_marker.no_depth_test = true
+	_marker.visible = false
+	add_child(_marker)
+
 
 # ---------- rules ----------
 
@@ -425,12 +511,25 @@ func _process(_delta: float) -> void:
 			holding += " [%s%s]" % [ex.state.to_upper(),
 				" %ds" % ceil(ex.decay_remaining()) if ex.decay_remaining() > 0 else ""]
 
+	var obj := "WALK OUT THE EXIT."
+	if not door1.is_open:
+		obj = "DOOR 1 BUS IS MISSING A COMPONENT. YOU ARE MADE OF COMPONENTS."
+	elif not door2.is_open:
+		obj = "BUS GAP AHEAD — GET CHARGED AT THE POST, STAND IN THE GAP."
+	elif not door3.is_open:
+		obj = "SEALED BAY — RELAY IS BEHIND THE BARS. READ THE CAUTION SIGN. DISOBEY IT."
+	elif not door4.is_open:
+		obj = "GRAV TANK NEEDS 2 POURS. THE BUCKET LEAKS. HUSTLE."
+	elif not won:
+		obj = "EXIT RUNS ON SUNLIGHT. CHECK THE SOL CLOCK."
+
 	var lines := [
 		"GENERAL COMPONENT™ — UNIT-77 — MISSION: RESTORE ASSET. RETURN ASSET.",
 		"SOL: %s%s" % [sol, "   ★ ROOM RESTORED — PHASE 0 COMPLETE" if won else ""],
 		"SHELL: %s | CORE: %s | WHEELS: %d | SPARES: %d | PORT 00: NO COMPONENT SPECIFIED"
 			% [shell_s, core_s, droid.wheels, droid.spare_wheels],
 		"HOLDING: %s" % holding,
+		"OBJECTIVE: %s" % obj,
 	]
 
 	var scan := droid.best_target(["exposable"], 8.0, 0.93)
@@ -445,6 +544,10 @@ func _process(_delta: float) -> void:
 	var target := droid.best_target(["interactable"], 3.0, 0.7)
 	if target:
 		lines.append("[E] %s" % target.get("prompt_text"))
+		_marker.visible = true
+		_marker.global_position = target.global_position + Vector3(0, 1.1 + 0.12 * sin(t_sol * 5.0), 0)
+	else:
+		_marker.visible = false
 	if droid.stun > 0:
 		lines.append(">>> REBOOTING <<<")