Zmiany

artifacts/shadow_height_test.log

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+Godot Engine v4.7.2.stable.official.ed1daf0bf - https://godotengine.org
+OpenGL API 3.3.0 NVIDIA 610.88 - Compatibility - Using Device: NVIDIA - NVIDIA GeForce RTX 4070 SUPER
+
+[MCPRuntimeServer] port: scanning 6570-6585 (default)
+[MCPRuntimeServer] listening on 127.0.0.1:6570
+[MCPRegistry] runtime port 6570 registered for c:/users/tomek/documents/godot/randoloot
+SURFACE WEATHER PASS: six biomes, layered shadow/weather, bounded particles, engine emission and expiry, snow wash

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artifacts/weather_biome_2.png.import

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artifacts/weather_biome_3.png.import

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artifacts/weather_biome_4.png.import

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artifacts/weather_biome_5.png.import

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artifacts/weather_biomes_review.png.import

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artifacts/weather_test.log

@@ -0,0 +1,7 @@
+Godot Engine v4.7.2.stable.official.ed1daf0bf - https://godotengine.org
+OpenGL API 3.3.0 NVIDIA 610.88 - Compatibility - Using Device: NVIDIA - NVIDIA GeForce RTX 4070 SUPER
+
+[MCPRuntimeServer] port: scanning 6570-6585 (default)
+[MCPRuntimeServer] listening on 127.0.0.1:6571
+[MCPRegistry] runtime port 6571 registered for c:/users/tomek/documents/godot/randoloot
+SURFACE WEATHER PASS: six biomes, layered shadow/weather, bounded particles, engine emission and expiry, snow wash

planet_mechanic.txt

@@ -1138,3 +1138,11 @@ HANGAR BEZ ZAKLADEK I PRZEGLAD OKIEN — 2026-10-18
 - Regresja slot_unlock_test i freighter_storage_test — PASS.
 - Podglad: artifacts/frigate_review_hangar_single.png.
   Pelny przeglad: artifacts/frigate_all_windows_review.png.
+
+
+Efekty lotu i pogoda (18.10.2026)
+- Lądownik rzuca miękki cień; podczas ciągu/hamowania wznieca lokalny pył, a na wodzie rozpryski. W tundrze unosi śnieg, przy drzewach czasem liście. Na skale pyłu jest mniej. Dopalacz wzmacnia efekt.
+- Cząsteczki pozostają w przestrzeni świata i samoczynnie zanikają: maksymalnie 144 cząsteczki podmuchu oraz 190 pogodowych.
+- Pogoda biomów: doliny i mokradła deszcz, jesienne lasy liście, wyżyny podmuchy, kaniony pył, tundra śnieg. Natężenie przechodzi płynnie między stanami co 38–85 sekund.
+- Niska mgła nad dolinami pozostaje pod statkiem. Nad sceną są delikatne opady i smugi światła; przy silnym deszczu na mokradłach rzadki słaby błysk. Korony drzew lekko kołyszą się z wiatrem.
+- Istniejący ambient wiatru reaguje na natężenie pogody. Efekty są kosmetyczne i nie zmieniają szans POI ani zagrożenia.

resources/effects/lander_shadow.gdshader

@@ -0,0 +1,15 @@
+shader_type canvas_item;
+render_mode unshaded;
+void fragment() {
+	vec2 step_uv = TEXTURE_PIXEL_SIZE*12.0;
+	float a = texture(TEXTURE,UV).a*0.28;
+	a += texture(TEXTURE,UV+step_uv*vec2(1,0)).a*0.12;
+	a += texture(TEXTURE,UV-step_uv*vec2(1,0)).a*0.12;
+	a += texture(TEXTURE,UV+step_uv*vec2(0,1)).a*0.12;
+	a += texture(TEXTURE,UV-step_uv*vec2(0,1)).a*0.12;
+	a += texture(TEXTURE,UV+step_uv).a*0.06;
+	a += texture(TEXTURE,UV-step_uv).a*0.06;
+	a += texture(TEXTURE,UV+step_uv*vec2(1,-1)).a*0.06;
+	a += texture(TEXTURE,UV+step_uv*vec2(-1,1)).a*0.06;
+	COLOR = vec4(0.02,0.035,0.03,a*0.20);
+}

resources/effects/lander_shadow.gdshader.uid

@@ -0,0 +1 @@
+uid://dh5qpdlbxshin

resources/effects/tree_wind.gdshader

@@ -0,0 +1,8 @@
+shader_type canvas_item;
+uniform vec2 wind_direction = vec2(0.95,0.3);
+uniform float wind_strength = 0.6;
+void vertex() {
+	vec2 point = (MODEL_MATRIX*vec4(VERTEX,0.0,1.0)).xy;
+	float sway = sin(TIME*1.35+point.x*0.012+point.y*0.006)*0.7+sin(TIME*2.1+point.y*0.014)*0.3;
+	VERTEX += wind_direction*sway*wind_strength*1.5;
+}

resources/effects/tree_wind.gdshader.uid

@@ -0,0 +1 @@
+uid://b87pkow0vmcgg

scripts/planets/surface_audio.gd

@@ -105,6 +105,7 @@ func _process(delta: float) -> void:
 		_refresh_local()
 	var gust := sin(_elapsed*0.19)*1.4+sin(_elapsed*0.073)*0.8
 	var engine_mask := -3.0 if source.engine_thrust_active() else 0.0
+	if is_instance_valid(source.weather): gust += source.weather.intensity*2.5
 	_wind.volume_db = move_toward(_wind.volume_db,WIND_DB[_biome]+gust+engine_mask,delta*26)
 	var leaf_target := -60.0 if _near_trees.is_empty() else lerpf(-34,-23,_density)+gust+engine_mask
 	_foliage.volume_db = move_toward(_foliage.volume_db,leaf_target,delta*8)

scripts/planets/surface_flight_effects.gd

@@ -0,0 +1,111 @@
+extends Node2D
+## Ground wash stays in world space after emission, independently of the lander.
+const LIMIT := 144
+var source: Control
+var weather: Node2D
+var _rng := RandomNumberGenerator.new()
+var _particles: Array[Dictionary] = []
+var _soft: GradientTexture2D
+var _shadow: Sprite2D
+var _emission := 0.0
+var _tree_timer := 0.0
+var _near_trees := false
+var _surface_kind := "dust"
+var _ground := Color("b5a17a")
+
+func _ready() -> void:
+	name = "SurfaceFlightEffects"
+	z_index = 21
+	texture_filter = CanvasItem.TEXTURE_FILTER_LINEAR
+	_rng.seed = source.progress.visit_seed ^ 0x44555354
+	_ground = (source.world.data.landscape.sand as Color).lerp(source.world.data.landscape.low,0.25)
+	var gradient := Gradient.new()
+	gradient.set_color(0,Color.WHITE)
+	gradient.set_color(1,Color(1,1,1,0))
+	_soft = GradientTexture2D.new()
+	_soft.gradient = gradient
+	_soft.width = 64
+	_soft.height = 64
+	_soft.fill = GradientTexture2D.FILL_RADIAL
+	_soft.fill_from = Vector2(0.5,0.5)
+	_soft.fill_to = Vector2(0.5,1)
+	_shadow = Sprite2D.new()
+	_shadow.name = "LanderShadow"
+	_shadow.texture = source.lander.texture
+	_shadow.scale = source.lander.scale*0.76
+	_shadow.z_index = -1
+	var material := ShaderMaterial.new()
+	material.shader = preload("res://resources/effects/lander_shadow.gdshader")
+	_shadow.material = material
+	add_child(_shadow)
+
+func surface_kind(point: Vector2) -> String:
+	if int(source.world.data.landscape.index) == 5: return "snow"
+	var h: float = weather.terrain_height(point)
+	if h < 0.29 or (int(source.world.data.landscape.index) == 2 and h < 0.37): return "spray"
+	return "rock" if h > 0.64 else "dust"
+
+func _process(delta: float) -> void:
+	if not is_instance_valid(source): return
+	visible = not source._ending
+	if source._ending: return
+	var pose: Transform2D = source.lander.global_transform
+	pose.origin = source._previous_position.lerp(source.lander.position,Engine.get_physics_interpolation_fraction())
+	var point := pose.origin
+	_shadow.position = point+Vector2(48,64)
+	_shadow.rotation = pose.get_rotation()
+	_shadow.visible = source.lander.visible
+	_tree_timer -= delta
+	if _tree_timer <= 0:
+		_tree_timer = 0.4
+		_near_trees = false
+		for tree in source.world.data.trees:
+			if point.distance_squared_to(tree.position) < 170*170:
+				_near_trees = true
+				break
+	_surface_kind = surface_kind(point)
+	var thrust: bool = source.engine_thrust_active()
+	var brake: bool = not source._dialog.visible and Input.is_action_pressed("ship_brake") and source._motion.velocity.length() > 12
+	var boost: bool = source._motion.boost_active and thrust
+	if thrust or brake:
+		var rate := 60.0 if boost else (26.0 if thrust else 18.0)
+		if _surface_kind == "rock": rate *= 0.3
+		_emission += delta*rate
+		while _emission >= 1:
+			_emission -= 1
+			if _particles.size() < LIMIT: _emit(point,pose.get_rotation(),boost)
+	else: _emission = 0
+	for index in range(_particles.size()-1,-1,-1):
+		var particle: Dictionary = _particles[index]
+		particle.age += delta
+		particle.position += (particle.velocity+weather.wind*0.7)*delta
+		particle.velocity *= exp(-delta*1.3)
+		if particle.age > particle.life: _particles.remove_at(index)
+	queue_redraw()
+
+func _emit(point: Vector2, angle: float, boost: bool) -> void:
+	var kind := _surface_kind
+	if _near_trees and kind == "dust" and _rng.randf() < 0.20: kind = "leaf"
+	var nozzle := Vector2(_rng.randf_range(-29,29),_rng.randf_range(22,42)).rotated(angle)
+	var scatter := Vector2(_rng.randf_range(-32,32),_rng.randf_range(10,45)).rotated(angle)
+	_particles.append({"position":point+nozzle,"velocity":scatter+source._motion.velocity*0.1,"age":0.0,"life":_rng.randf_range(1.1,2.4),"size":_rng.randf_range(9,17)*(1.4 if boost else 1.0),"kind":kind,"angle":_rng.randf_range(-PI,PI)})
+
+func _draw() -> void:
+	for particle in _particles:
+		var t := clampf(particle.age/particle.life,0,1)
+		var alpha := sin(t*PI)
+		var kind: String = particle.kind
+		var radius: float = particle.size*(1.0+t*1.9)
+		var color := _ground
+		color.a = alpha*0.14
+		if kind == "rock": color = Color(0.65,0.65,0.59,alpha*0.09)
+		if kind == "snow": color = Color(0.88,0.95,0.95,alpha*0.25)
+		if kind == "spray": color = Color(0.66,0.83,0.80,alpha*0.18)
+		if kind == "leaf":
+			draw_set_transform(particle.position,particle.angle+t*2,Vector2(1,0.45))
+			draw_circle(Vector2.ZERO,2.5,Color(0.49,0.35,0.17,alpha*0.7),true,-1,true)
+			draw_set_transform(Vector2.ZERO)
+		else:
+			draw_texture_rect(_soft,Rect2(particle.position-Vector2.ONE*radius,Vector2.ONE*radius*2),false,color)
+			if kind in ["spray","snow"]:
+				draw_circle(particle.position+Vector2(4,-7)*t,1.4,Color(color,alpha*0.38),true,-1,true)

scripts/planets/surface_flight_effects.gd.uid

@@ -0,0 +1 @@
+uid://b8fcnm6unlmjh

scripts/planets/surface_screen.gd

@@ -10,6 +10,8 @@ var progress: Resource
 var world: Node2D
 var lander: Sprite2D
 var camera: Camera2D
+var weather: Node2D
+var flight_effects: Node2D
 var _hp: ProgressBar
 var _cargo: Label
 var _threat: Label
@@ -97,6 +99,15 @@ func _ready() -> void:
 	atmosphere.set_script(preload("res://scripts/planets/surface_clouds.gd"))
 	atmosphere.seed_value = progress.visit_seed
 	viewport.add_child(atmosphere)
+	weather = Node2D.new()
+	weather.set_script(preload("res://scripts/planets/surface_weather.gd"))
+	weather.source = self
+	viewport.add_child(weather)
+	flight_effects = Node2D.new()
+	flight_effects.set_script(preload("res://scripts/planets/surface_flight_effects.gd"))
+	flight_effects.source = self
+	flight_effects.weather = weather
+	viewport.add_child(flight_effects)
 	var nature_audio := Node.new()
 	nature_audio.name = "SurfaceAudio"
 	nature_audio.set_script(preload("res://scripts/planets/surface_audio.gd"))

scripts/planets/surface_tree_canopy.gd

@@ -0,0 +1,22 @@
+extends Node2D
+var world: Node2D
+var wind_material: ShaderMaterial
+func _ready() -> void:
+	name = "WindCanopies"
+	texture_filter = CanvasItem.TEXTURE_FILTER_LINEAR_WITH_MIPMAPS
+	wind_material = ShaderMaterial.new()
+	wind_material.shader = preload("res://resources/effects/tree_wind.gdshader")
+	material = wind_material
+
+func _draw() -> void:
+	for tree in world.data.trees:
+		var shade := float(tree.shade)
+		var color: Color = Color(shade,shade,shade)*world.data.landscape.trees
+		if int(world.data.profile.temperature) < -10: color = color.lerp(Color("d1e1da"),0.4)
+		elif int(world.data.profile.temperature) > 40: color = color.lerp(Color("c6a86b"),0.28)
+		var variant := int(tree.get("variant",-1))
+		var texture: Texture2D = world._tree if variant < 0 else world._nature[variant]
+		var extent := Vector2(tree.size,tree.size*texture.get_height()/texture.get_width())
+		draw_set_transform(tree.position,tree.rotation)
+		draw_texture_rect(texture,Rect2(-extent*0.5,extent),false,color)
+	draw_set_transform(Vector2.ZERO)

scripts/planets/surface_tree_canopy.gd.uid

@@ -0,0 +1 @@
+uid://bqq7jv5t84lsa

scripts/planets/surface_weather.gd

@@ -0,0 +1,130 @@
+extends Node2D
+## World-space weather: bounded particle pool, slow transitions, no screen-space noise.
+const LIMIT := 190
+var source: Control
+var intensity := 0.15
+var target_intensity := 0.2
+var wind := Vector2(18,6)
+var mode := "wind"
+var _rng := RandomNumberGenerator.new()
+var _time := 0.0
+var _transition := 36.0
+var _storm_timer := 40.0
+var _flash := 0.0
+var _emission := 0.0
+var _particles: Array[Dictionary] = []
+var _fog: Array[Sprite2D] = []
+var _biome := 0
+var _bolt := PackedVector2Array()
+
+func _ready() -> void:
+	name = "SurfaceWeather"
+	z_index = 80
+	texture_filter = CanvasItem.TEXTURE_FILTER_LINEAR_WITH_MIPMAPS
+	_rng.seed = source.progress.visit_seed ^ 0x57454154
+	_biome = int(source.world.data.landscape.index)
+	mode = ["rain","leaves","rain","wind","dust","snow"][_biome]
+	target_intensity = 0.38 if _biome in [2,5] else 0.18
+	var material := ShaderMaterial.new()
+	material.shader = preload("res://resources/effects/cloud_mist.gdshader")
+	for index in 12:
+		var fog := Sprite2D.new()
+		fog.texture = preload("res://assets/planets/cloud_mist.png")
+		fog.material = material
+		fog.position = Vector2(index%4*1100-1650,index/4*1100-1100)
+		fog.rotation = _rng.randf_range(-PI,PI)
+		fog.scale = Vector2.ONE*_rng.randf_range(650,1100)/fog.texture.get_width()
+		fog.z_as_relative = false
+		fog.z_index = 18
+		fog.modulate = Color(0.79,0.84,0.79,0.0)
+		add_child(fog)
+		_fog.append(fog)
+
+func _center() -> Vector2:
+	return source.camera.get_screen_center_position()
+
+func _extent() -> Vector2:
+	return Vector2(get_viewport_rect().size)/source.camera.zoom*0.5+Vector2(140,140)
+
+func _process(delta: float) -> void:
+	if not is_instance_valid(source) or source._ending: return
+	_time += delta
+	_transition -= delta
+	if _transition <= 0:
+		_transition = _rng.randf_range(38,85)
+		target_intensity = _rng.randf_range(0.12,0.85) if _biome in [2,4,5] else _rng.randf_range(0.0,0.58)
+	intensity = move_toward(intensity,target_intensity,delta*0.018)
+	var gust := 0.75+0.25*sin(_time*0.19)+0.12*sin(_time*0.57)
+	wind = Vector2(22,7).rotated(sin(_time*0.045)*0.25)*(0.7+intensity*1.4)*gust
+	if is_instance_valid(source.world.tree_canopy):
+		source.world.tree_canopy.wind_material.set_shader_parameter("wind_direction",wind.normalized())
+		source.world.tree_canopy.wind_material.set_shader_parameter("wind_strength",0.5+intensity*1.4)
+	for index in _fog.size():
+		var fog := _fog[index]
+		fog.position += wind*delta*0.24
+		fog.position.x = wrapf(fog.position.x,-2350,2350)
+		fog.position.y = wrapf(fog.position.y,-2100,2100)
+		var h := terrain_height(fog.position)
+		var valley := 1.0-smoothstep(0.42,0.65,h)
+		fog.modulate.a = (0.035+intensity*0.14)*valley*(1.0 if _biome in [0,1,2,5] else 0.3)
+	if _biome == 4:
+		for fog in _fog: fog.modulate = Color(0.76,0.62,0.39,fog.modulate.a+intensity*0.04)
+	_emission += delta*([13,12,34,8,24,34][_biome])*intensity
+	while _emission >= 1:
+		_emission -= 1
+		if _particles.size() < LIMIT: _spawn()
+	var center := _center()
+	var extent := _extent()
+	for index in range(_particles.size()-1,-1,-1):
+		var p: Dictionary = _particles[index]
+		p.age += delta
+		p.position += (p.velocity+wind)*delta
+		if p.age > p.life or absf(p.position.x-center.x) > extent.x*1.3 or absf(p.position.y-center.y) > extent.y*1.3:
+			_particles.remove_at(index)
+	_flash = move_toward(_flash,0,delta*0.8)
+	_storm_timer -= delta
+	if mode == "rain" and intensity > 0.66 and _storm_timer <= 0:
+		_storm_timer = _rng.randf_range(28,65)
+		_flash = 0.045
+		var point := center+Vector2(_rng.randf_range(-extent.x*0.8,extent.x*0.8),-extent.y*0.7)
+		_bolt = PackedVector2Array([point,point+Vector2(15,30),point+Vector2(4,45),point+Vector2(31,80)])
+	queue_redraw()
+
+func terrain_height(point: Vector2) -> float:
+	var x := clampi(int((point.x+1920)/40),0,95)
+	var y := clampi(int((point.y+1920)/40),0,95)
+	return float(source.world.data.heights[y*96+x])
+
+func _spawn() -> void:
+	var extent := _extent()
+	var point := _center()+Vector2(_rng.randf_range(-extent.x,extent.x),_rng.randf_range(-extent.y,extent.y))
+	var velocity := Vector2(-25,250) if mode == "rain" else Vector2(_rng.randf_range(-8,8),_rng.randf_range(7,22))
+	_particles.append({"position":point,"velocity":velocity,"age":0.0,"life":_rng.randf_range(3,6),"size":_rng.randf_range(1.1,2.8),"phase":_rng.randf_range(0,TAU)})
+
+func _draw() -> void:
+	for p in _particles:
+		var alpha := sin(clampf(p.age/p.life,0,1)*PI)
+		var point: Vector2 = p.position+Vector2(sin(_time*1.6+p.phase)*3,0)
+		match mode:
+			"rain":
+				draw_line(point,point+Vector2(-2,12),Color(0.73,0.83,0.86,alpha*0.26),0.8,true)
+				if terrain_height(point) < 0.32: draw_arc(point+Vector2(-2,12),p.size*1.5,0,TAU,12,Color(0.73,0.83,0.86,alpha*0.10),0.7,true)
+			"snow": draw_circle(point,p.size,Color(0.91,0.96,0.97,alpha*0.55),true,-1,true)
+			"leaves":
+				draw_set_transform(point,sin(_time+p.phase),Vector2(1,0.45))
+				draw_circle(Vector2.ZERO,p.size,Color(0.61,0.43,0.19,alpha*0.55),true,-1,true)
+				_draw_reset()
+			_: draw_line(point,point+wind.normalized()*p.size*7,Color(0.80,0.72,0.53,alpha*0.11),1,true)
+	var center := _center()
+	var extent := _extent()
+	# Very faint broad sun shafts, confined to damp wooded climates.
+	if _biome in [0,1,2]:
+		for index in 2:
+			var start := center+Vector2(-extent.x*0.7+index*extent.x*0.9,-extent.y)
+			draw_colored_polygon(PackedVector2Array([start,start+Vector2(50,0),start+Vector2(380,extent.y*2),start+Vector2(210,extent.y*2)]),Color(0.95,0.87,0.62,0.012*(1.0-intensity)))
+	if _flash > 0:
+		draw_rect(Rect2(center-extent,extent*2),Color(0.78,0.84,1.0,_flash))
+		draw_polyline(_bolt,Color(0.83,0.90,1.0,_flash*6),1.2,true)
+
+func _draw_reset() -> void:
+	draw_set_transform(Vector2.ZERO)

scripts/planets/surface_weather.gd.uid

@@ -0,0 +1 @@
+uid://d3omfrwkxohc6

scripts/planets/surface_world.gd

@@ -4,6 +4,7 @@ const BUILDING_SCALE := preload("res://scripts/planets/surface_scenery.gd").BUIL
 const GENERATOR := preload("res://scripts/planets/surface_generator.gd")
 var data: Dictionary
 var terrain: ImageTexture
+var tree_canopy: Node2D
 var _nature: Array[AtlasTexture] = []
 var _tree: Texture2D
 var _poi_sprites: Dictionary = {}
@@ -54,6 +55,10 @@ func _ready() -> void:
 	mountains.data = data
 	mountains.z_index = -1
 	add_child(mountains)
+	tree_canopy = Node2D.new()
+	tree_canopy.set_script(preload("res://scripts/planets/surface_tree_canopy.gd"))
+	tree_canopy.world = self
+	add_child(tree_canopy)
 	for poi in data.pois:
 		var sprite := Sprite2D.new()
 		if poi.kind == "deposit":
@@ -146,15 +151,6 @@ func _draw() -> void:
 		_draw_prop(_nature[int(detail.variant)], detail.position, detail.size, detail.rotation, Color(shade,shade,shade))
 	for rock in data.rocks:
 		_draw_prop(_nature[int(rock.get("variant",4))],rock.position,rock.size,rock.rotation,Color.WHITE)
-	for tree in data.trees:
-		var shade := float(tree.shade)
-		var color: Color = Color(shade,shade,shade)*data.landscape.trees
-		if int(data.profile.temperature) < -10:
-			color = color.lerp(Color("d1e1da"), 0.4)
-		elif int(data.profile.temperature) > 40:
-			color = color.lerp(Color("c6a86b"), 0.28)
-		var variant := int(tree.get("variant", -1))
-		_draw_prop(_tree if variant < 0 else _nature[variant], tree.position, tree.size, tree.rotation, color)
 	# Small landing beacon.
 	draw_circle(Vector2.ZERO, 50, Color(0.5, 0.85, 0.8, 0.12))
 	draw_arc(Vector2.ZERO, 48, 0, TAU, 48, Color("8cd9c2"), 2, true)

tests/previews/surface_weather_preview.gd

@@ -0,0 +1,52 @@
+extends Node
+
+func _ready() -> void:
+	var sheet := Image.create(1280,1080,false,Image.FORMAT_RGBA8)
+	var progress: Resource = GameState.captain.expedition
+	for biome in 6:
+		var profile: Dictionary = preload("res://scripts/planets/planet_profiles.gd").generate(99,biome,"Pogoda / biom %d" % (biome+1))
+		profile.temperature = 75 if biome == 4 else (-35 if biome == 5 else 20)
+		progress.lander_hp = 100
+		assert(progress.begin_visit(profile))
+		progress.visit_seed = 200+biome
+		var surface := Control.new()
+		surface.set_script(preload("res://scripts/planets/surface_screen.gd"))
+		surface.captain = GameState.captain
+		surface.progress = progress
+		add_child(surface)
+		surface.set_process(false)
+		surface.set_physics_process(false)
+		surface.weather.set_process(false)
+		surface.flight_effects.set_process(false)
+		surface.weather.intensity = 0.75
+		surface.weather.target_intensity = 0.75
+		assert(surface.weather._biome == biome)
+		assert(surface.weather.z_index > surface.lander.z_index)
+		assert(surface.flight_effects.z_index < surface.lander.z_index)
+		Input.action_press("ship_thrust")
+		for frame in 240:
+			surface.weather._process(1.0/60)
+			surface.flight_effects._process(1.0/60)
+		assert(surface.weather._particles.size() > 0)
+		assert(surface.weather._particles.size() <= surface.weather.LIMIT)
+		assert(surface.flight_effects._particles.size() > 0)
+		assert(surface.flight_effects._particles.size() <= surface.flight_effects.LIMIT)
+		assert(surface.flight_effects._shadow.texture == surface.lander.texture)
+		for frame in 5: await get_tree().process_frame
+		await RenderingServer.frame_post_draw
+		var image: Image = get_viewport().get_texture().get_image()
+		assert(image.save_png("res://artifacts/weather_biome_%d.png" % biome) == OK)
+		image.convert(Image.FORMAT_RGBA8)
+		image.resize(640,360,Image.INTERPOLATE_LANCZOS)
+		sheet.blit_rect(image,Rect2i(0,0,640,360),Vector2i(biome%2*640,biome/2*360))
+		Input.action_release("ship_thrust")
+		for frame in 180: surface.flight_effects._process(1.0/60)
+		assert(surface.flight_effects._particles.is_empty(),"Ground wash must expire after stopping engines")
+		if biome == 5: assert(surface.flight_effects.surface_kind(Vector2.ZERO) == "snow")
+		progress.finish_visit(GameState.captain,false)
+		surface.queue_free()
+		await get_tree().process_frame
+		await get_tree().process_frame
+	assert(sheet.save_png("res://artifacts/weather_biomes_review.png") == OK)
+	print("SURFACE WEATHER PASS: six biomes, layered shadow/weather, bounded particles, engine emission and expiry, snow wash")
+	get_tree().quit()

tests/previews/surface_weather_preview.gd.uid

@@ -0,0 +1 @@
+uid://cd8q7210dpt26

tests/previews/surface_weather_preview.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://tests/previews/surface_weather_preview.gd" id="1"]
+
+[node name="SurfaceWeatherPreview" type="Node"]
+script = ExtResource("1")