diff --git a/core/biome_generator/biome_generator.gd b/core/biome_generator/biome_generator.gd
index 3658506..f717c85 100644
--- a/core/biome_generator/biome_generator.gd
+++ b/core/biome_generator/biome_generator.gd
@@ -50,7 +50,7 @@ const RIVER_NEIGHBOUR_OFFSETS: Dictionary = {
 #aumentare generazione a 3000 o 4000
 #Se ci sono micro-scatti:
 #abbassare generazione a 1000 o 1500
-#Se i fili appaiono in ritardo:
+"res://tgcc/chunk/railway/scene/chunk_railway_curve_2.tscn"#Se i fili appaiono in ritardo:
 #aumentare wire a 1500 o 2000
 #Se il cleanup causa scatti:
 #abbassare cleanup a 500
diff --git a/core/daynight/environment_manager.gd b/core/daynight/environment_manager.gd
index 63dbe1b..c289801 100644
--- a/core/daynight/environment_manager.gd
+++ b/core/daynight/environment_manager.gd
@@ -3,7 +3,7 @@ extends Node3D
 
 const NOISE_TEXTURE: Texture2D = preload("res://core/daynight/noise.tres")
 const WEATHER_SHADER: Material = preload("res://core/daynight/weather_overlay.tres")
-const DYNAMIC_ENVIRONMENT_UPDATES_PER_FRAME: int = 2 #how many update of the environment (apply materials) will be done per frame
+const DYNAMIC_ENVIRONMENT_UPDATES_PER_FRAME: int = 32 #how many update of the environment (apply materials) will be done per frame
 
 @export var environment_config: EnvironmentConfig
 
@@ -80,6 +80,9 @@ func _ready() -> void:
 func _process(_delta: float) -> void:
 	_process_pending_environment_nodes()
 
+func flush_pending_environment_nodes() -> void:
+	_process_pending_environment_nodes(-1)
+
 func _on_tree_node_added(node: Node) -> void:
 	if node.is_in_group("wind_node") or node.is_in_group("weather_node") or node.is_in_group("weather_vegetables_node"):
 		_queue_dynamic_environment_node(node)
@@ -108,10 +111,10 @@ func _queue_dynamic_environment_node(node: Node) -> void:
 
 	pending_environment_nodes[node.get_instance_id()] = node
 
-func _process_pending_environment_nodes() -> void:
+func _process_pending_environment_nodes(max_nodes: int = DYNAMIC_ENVIRONMENT_UPDATES_PER_FRAME) -> void:
 	var processed = 0
 	for node_id in pending_environment_nodes.keys():
-		if processed >= DYNAMIC_ENVIRONMENT_UPDATES_PER_FRAME:
+		if max_nodes >= 0 and processed >= max_nodes:
 			break
 
 		var node = pending_environment_nodes[node_id]
diff --git a/core/daynight/snow_cap.gdshader b/core/daynight/snow_cap.gdshader
index 71b6abc..0ce8ff2 100644
--- a/core/daynight/snow_cap.gdshader
+++ b/core/daynight/snow_cap.gdshader
@@ -7,6 +7,7 @@ global uniform float global_snow_melt_time = -1.0;
 global uniform float global_snow_melt_speed = 0.1;
 global uniform float global_snow_amount = 0.0;
 global uniform vec4 global_snow_color = vec4(0.92, 0.96, 1.0, 1.0);
+const float SNOW_VISUAL_RESPONSE = 0.55;
 
 uniform float max_height : hint_range(0.02, 1.0) = 0.2;
 uniform float half_width : hint_range(0.01, 20.0) = 1.0;
@@ -68,10 +69,14 @@ float get_snow_amount() {
 	return snow_amount;
 }
 
+float get_visual_snow_amount(float snow_amount) {
+	return pow(clamp(snow_amount, 0.0, 1.0), SNOW_VISUAL_RESPONSE);
+}
+
 void vertex() {
 	vec3 base_vertex = VERTEX;
 	vec3 world_pos = (MODEL_MATRIX * vec4(base_vertex, 1.0)).xyz;
-	float snow_amount = get_snow_amount();
+	float snow_amount = get_visual_snow_amount(get_snow_amount());
 	float noise_val = fbm(world_pos.xz * noise_scale);
 	float thickness = max_height * snow_amount * mix(
 		1.0 - noise_strength,
diff --git a/core/daynight/weather_controller.gd b/core/daynight/weather_controller.gd
index 782a2e9..c427a76 100644
--- a/core/daynight/weather_controller.gd
+++ b/core/daynight/weather_controller.gd
@@ -3,6 +3,9 @@ extends Node
 
 signal wind_parameters_changed(speed: float, strength: float, fade: float, direction: Vector2)
 
+const SNOW_ACCUMULATION_DELAY: float = 4.0
+const SNOW_ACCUMULATION_DELAY_THRESHOLD: float = 0.01
+
 var thunder_audio_player: AudioStreamPlayer
 var thunder_sounds: Array[AudioStream]
 var rain_sounds: Array[AudioStream]
@@ -836,6 +839,8 @@ func toggle_snow(value: bool):
 	
 	if is_snowing and is_raining:
 		toggle_rain(false)
+
+	var snow_accumulation_delay: float = _get_snow_accumulation_delay() if is_snowing else 0.0
 	
 	# Fade particelle neve
 	if particles_snow:
@@ -849,7 +854,7 @@ func toggle_snow(value: bool):
 			snow_particles_tween = create_tween()
 			snow_particles_tween.tween_property(particles_snow, "amount_ratio", 1.0, environment_config.snow_fade_time)
 			
-			start_snow_accumulation()
+			start_snow_accumulation(snow_accumulation_delay)
 		else:
 			snow_particles_tween = create_tween()
 			snow_particles_tween.tween_property(particles_snow, "amount_ratio", 0.0, environment_config.snow_fade_time)
@@ -864,6 +869,8 @@ func toggle_snow(value: bool):
 		snow_weather_tween.kill()
 	var snow_amount_transition_duration: float = _get_snow_amount_transition_duration(is_snowing)
 	snow_tween = create_tween()
+	if is_snowing and snow_accumulation_delay > 0.0:
+		snow_tween.tween_interval(snow_accumulation_delay)
 	snow_tween.tween_method(
 		init_snow_amount,
 		actual_snow_amount,
@@ -928,14 +935,26 @@ func init_snow_amount(value: float):
 func init_snow_weather_amount(value: float):
 	snow_weather_amount = value
 
-func start_snow_accumulation() -> void:
+func start_snow_accumulation(delay: float = 0.0) -> void:
 	RenderingServer.global_shader_parameter_set("global_snow_melt_time", -1.0)
-	RenderingServer.global_shader_parameter_set("global_snow_start_time", Time.get_ticks_msec() / 1000.0)
+	RenderingServer.global_shader_parameter_set("global_snow_start_time", Time.get_ticks_msec() / 1000.0 + delay)
+	_flush_pending_weather_materials()
 
 func start_snow_melt() -> void:
 	RenderingServer.global_shader_parameter_set("global_snow_melt_time", Time.get_ticks_msec() / 1000.0)
 	RenderingServer.global_shader_parameter_set("global_snow_melt_speed", environment_config.snow_melt_speed)
 
+func _get_snow_accumulation_delay() -> float:
+	if actual_snow_amount > SNOW_ACCUMULATION_DELAY_THRESHOLD:
+		return 0.0
+
+	return SNOW_ACCUMULATION_DELAY
+
+func _flush_pending_weather_materials() -> void:
+	var environment_manager := get_parent()
+	if environment_manager != null and environment_manager.has_method("flush_pending_environment_nodes"):
+		environment_manager.call("flush_pending_environment_nodes")
+
 func _get_snow_amount_transition_duration(is_accumulating: bool) -> float:
 	if environment_config == null:
 		return 0.0
diff --git a/core/daynight/weather_overlay.gdshader b/core/daynight/weather_overlay.gdshader
index 5858dd2..212be0e 100644
--- a/core/daynight/weather_overlay.gdshader
+++ b/core/daynight/weather_overlay.gdshader
@@ -16,6 +16,7 @@ global uniform float global_snow_cap_flatness_start = 0.72;
 global uniform float global_snow_cap_flatness_end  = 0.96;
 global uniform float global_snow_cap_noise_scale   = 0.22;
 global uniform float global_snow_cap_noise_strength = 0.18;
+const float SNOW_VISUAL_RESPONSE = 0.55;
 uniform float snow_noise_scale : hint_range(0.01, 1.0) = 0.15;
 uniform float snow_edge_softness : hint_range(0.01, 0.5) = 0.2;
 uniform float snow_roughness_variation : hint_range(0.0, 0.3) = 0.15;
@@ -86,6 +87,18 @@ float get_snow_progress() {
     return snow_progress;
 }
 
+float get_visual_snow_progress(float snow_progress) {
+    return pow(clamp(snow_progress, 0.0, 1.0), SNOW_VISUAL_RESPONSE);
+}
+
+float get_snow_noise_mask(vec3 world_pos, float snow_progress) {
+    float detail_noise = texture(noise_texture, world_pos.xz * snow_noise_scale).r;
+    float broad_noise = texture(noise_texture, world_pos.xz * snow_noise_scale * 0.35 + vec2(19.1, 7.4)).r;
+    float combined_noise = mix(detail_noise, broad_noise, 0.35);
+    float threshold = mix(0.92, 0.08, snow_progress);
+    return smoothstep(threshold - 0.18, threshold + 0.18, combined_noise);
+}
+
 float ripple_ring(vec2 uv, float time_offset) {
     float d = length(uv);
     float ring = sin(d * 30.0 - TIME * ripple_speed + time_offset) * 0.5 + 0.5;
@@ -94,7 +107,7 @@ float ripple_ring(vec2 uv, float time_offset) {
 }
 
 void vertex() {
-    float snow_progress = get_snow_progress();
+    float snow_progress = get_visual_snow_progress(get_snow_progress());
     float snow_accumulation = snow_progress * global_snow_max_accumulation;
     vec3 world_pos = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
     vec3 world_normal = normalize((MODEL_MATRIX * vec4(NORMAL, 0.0)).xyz);
@@ -104,7 +117,7 @@ void vertex() {
         global_snow_cap_flatness_end,
         world_normal.y
     );
-    float accumulation_growth = smoothstep(0.08, 0.65, snow_progress);
+    float accumulation_growth = smoothstep(0.02, 0.45, snow_progress);
     float cap_noise = fbm(world_pos.xz * global_snow_cap_noise_scale + vec2(11.3, 4.7));
     float cap_variation = mix(1.0 - global_snow_cap_noise_strength, 1.0 + global_snow_cap_noise_strength, cap_noise);
 
@@ -118,6 +131,8 @@ void fragment() {
     vec3 world_pos = (INV_VIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
     vec3 world_normal = normalize((INV_VIEW_MATRIX * vec4(NORMAL, 0.0)).xyz);
     float facing_up = clamp(world_normal.y, 0.0, 1.0);
+    vec3 geometric_normal = normalize(cross(dFdx(world_pos), dFdy(world_pos)));
+    float snow_facing_up = max(facing_up, abs(geometric_normal.y));
     float noise_val = texture(noise_texture, world_pos.xz * snow_noise_scale).r;
 
     //Snow
@@ -127,14 +142,15 @@ void fragment() {
     float snow_edge = smoothstep(
         global_snow_threshold - snow_edge_softness,
         global_snow_threshold + snow_edge_softness,
-        facing_up
+        snow_facing_up
     );
     float flat_accumulation = smoothstep(0.0, 0.35, v_snow_cap_mask) * snow_accumulation;
+    float snow_noise_mask = get_snow_noise_mask(world_pos, snow_progress);
     float snow_variation = mix(0.75, 1.15, noise_val);
-    float snow_coverage = clamp(snow_progress * snow_variation + flat_accumulation * 0.25, 0.0, 1.0);
+    float snow_coverage = clamp(mix(snow_progress * 0.35, snow_progress * snow_variation, snow_noise_mask) + flat_accumulation * 0.15, 0.0, 1.0);
     float snow_factor = max(snow_edge * snow_coverage, flat_accumulation);
     float snow_opacity = clamp(snow_factor, 0.0, 1.0);
-    snow_opacity = max(snow_opacity, flat_accumulation * 0.9);
+    snow_opacity = max(snow_opacity, flat_accumulation * mix(0.45, 0.9, snow_noise_mask));
 
     float shade = mix(-snow_color_variation, snow_color_variation, noise_val);
     vec3 snow_albedo = clamp(global_snow_color.rgb + vec3(shade), 0.0, 1.0);
diff --git a/core/daynight/weather_overlay.tres b/core/daynight/weather_overlay.tres
index 03906a7..66f2509 100644
--- a/core/daynight/weather_overlay.tres
+++ b/core/daynight/weather_overlay.tres
@@ -1,6 +1,7 @@
 [gd_resource type="ShaderMaterial" format=3 uid="uid://cn5vw7unbqgve"]
 
 [ext_resource type="Shader" uid="uid://dh3j2jp6defuk" path="res://core/daynight/weather_overlay.gdshader" id="1_weather"]
+[ext_resource type="Texture2D" uid="uid://bpswbjh4jj1ou" path="res://core/daynight/noise.tres" id="2_noise"]
 
 [resource]
 render_priority = 0
@@ -19,3 +20,4 @@ shader_parameter/wet_roughness = 0.05
 shader_parameter/rain_normal_strength = 0.4
 shader_parameter/puddle_noise_scale = 0.08
 shader_parameter/puddle_threshold = 0.45
+shader_parameter/noise_texture = ExtResource("2_noise")
diff --git a/core/daynight/weather_plain_shader.gdshader b/core/daynight/weather_plain_shader.gdshader
index c793d3e..c9bc804 100644
--- a/core/daynight/weather_plain_shader.gdshader
+++ b/core/daynight/weather_plain_shader.gdshader
@@ -8,7 +8,9 @@ global uniform float global_snow_melt_time = -1.0;
 global uniform float global_snow_melt_speed = 0.1;
 global uniform float global_snow_amount = 0.0;
 global uniform vec4  global_snow_color;
+const float SNOW_VISUAL_RESPONSE = 0.55;
 uniform float snow_edge_softness : hint_range(0.01, 0.5) = 0.15;
+uniform float snow_noise_scale : hint_range(0.01, 1.0) = 0.15;
 uniform float snow_color_variation : hint_range(0.0, 0.15) = 0.05;
 
 
@@ -50,6 +52,18 @@ float get_snow_progress() {
 	return snow_progress;
 }
 
+float get_visual_snow_progress(float snow_progress) {
+	return pow(clamp(snow_progress, 0.0, 1.0), SNOW_VISUAL_RESPONSE);
+}
+
+float get_snow_noise_mask(vec3 world_pos, float snow_progress) {
+	float detail_noise = texture(noise_texture, world_pos.xz * snow_noise_scale).r;
+	float broad_noise = texture(noise_texture, world_pos.xz * snow_noise_scale * 0.35 + vec2(19.1, 7.4)).r;
+	float combined_noise = mix(detail_noise, broad_noise, 0.35);
+	float threshold = mix(0.92, 0.08, snow_progress);
+	return smoothstep(threshold - 0.18, threshold + 0.18, combined_noise);
+}
+
 void fragment() {
 	vec3 world_pos = (INV_VIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
 
@@ -57,14 +71,15 @@ void fragment() {
 	float facing_up = 1.0;
 
 	// Snow accumulation
-	float snow_amount = get_snow_progress();
+	float snow_amount = get_visual_snow_progress(get_snow_progress());
 
-	// Plain surfaces fade in uniformly to avoid patchy strip-like accumulation.
-	float snow_mask = smoothstep(0.0, 1.0, snow_amount);
+	// Plain surfaces accumulate through world-space noise so flat snow is not uniform.
+	float snow_noise_mask = get_snow_noise_mask(world_pos, snow_amount);
+	float snow_mask = mix(snow_amount * 0.35, snow_amount, snow_noise_mask);
 	snow_mask *= step(0.01, snow_amount);
 
 	// Snow color with slight variation
-	float shade = fract(sin(dot(UV, vec2(12.9898, 78.233))) * 43758.5453);
+	float shade = texture(noise_texture, world_pos.xz * snow_noise_scale * 2.0 + vec2(3.7, 11.2)).r;
 	shade = mix(-snow_color_variation, snow_color_variation, shade);
 	vec3 snow_albedo = clamp(global_snow_color.rgb + vec3(shade), 0.0, 1.0);
 
diff --git a/core/daynight/weather_plain_shader.tres b/core/daynight/weather_plain_shader.tres
index 4706dc1..0c800f0 100644
--- a/core/daynight/weather_plain_shader.tres
+++ b/core/daynight/weather_plain_shader.tres
@@ -7,6 +7,7 @@
 render_priority = 0
 shader = ExtResource("1_weather_plain")
 shader_parameter/snow_edge_softness = 0.15
+shader_parameter/snow_noise_scale = 0.15
 shader_parameter/snow_color_variation = 0.05
 shader_parameter/ripple_scale = 1.5
 shader_parameter/ripple_speed = 2.0
diff --git a/core/environment_config.gd b/core/environment_config.gd
index 303470f..fdaeb17 100644
--- a/core/environment_config.gd
+++ b/core/environment_config.gd
@@ -167,7 +167,7 @@ extends Resource
 @export var snow_threshold: float = 0.4 #Normal Y threshold for snow accumulation on surfaces
 @export var snow_accumulation_speed: float = 0.005 #Accumulation speed: 0.005 -> ~200s, 0.01 -> 100s, 0.02 -> 50s
 @export var snow_melt_speed: float = 0.05 #Speed at which accumulated snow melts away
-@export var show_snow_accumulation_volume: bool = true #Enables vertex snow buildup; when false snow only changes surface color
+@export var show_snow_accumulation_volume: bool = false #Enables vertex snow buildup; when false snow only changes surface color
 @export var snow_max_accumulation: float = 0.25 #Maximum accumulated snow factor applied to coverage and thickness
 @export var snow_color: Color = Color(0.9, 0.95, 1.0) #Albedo color of snow on surfaces
 @export var snow_cap_height: float = 0.03 #Maximum snow thickness extruded on flat surfaces
diff --git a/snow.jpg b/snow.jpg
new file mode 100644
index 0000000..b5dd05d
Binary files /dev/null and b/snow.jpg differ
diff --git a/snow.jpg.import b/snow.jpg.import
new file mode 100644
index 0000000..83e959a
--- /dev/null
+++ b/snow.jpg.import
@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bk1h41vq5acfa"
+path="res://.godot/imported/snow.jpg-51a2902860b21a02a582c65a2470860d.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://snow.jpg"
+dest_files=["res://.godot/imported/snow.jpg-51a2902860b21a02a582c65a2470860d.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/tgcc/chunk/countryside/scene/fields/river/chunk_river_fields_mix1_1.tscn b/tgcc/chunk/countryside/scene/fields/river/chunk_river_fields_mix1_1.tscn
index 504041a..b350d54 100644
--- a/tgcc/chunk/countryside/scene/fields/river/chunk_river_fields_mix1_1.tscn
+++ b/tgcc/chunk/countryside/scene/fields/river/chunk_river_fields_mix1_1.tscn
@@ -124,7 +124,7 @@ surface_material_override/0 = ExtResource("3_sa8j3")
 surface_material_override/0 = ExtResource("4_wx70f")
 surface_material_override/1 = ExtResource("4_wx70f")
 
-[node name="Cortile_006" parent="." index="4" unique_id=12586199]
+[node name="Cortile_006" parent="." index="4" unique_id=12586199 groups=["weather_node"]]
 surface_material_override/0 = ExtResource("5_05rnc")
 
 [node name="Cube_036" parent="." index="5" unique_id=1681749225]
diff --git a/tgcc/chunk/countryside/scene/rice/chunk_country_empty_03.tscn b/tgcc/chunk/countryside/scene/rice/chunk_country_empty_03.tscn
index 8731b33..4a4812d 100644
--- a/tgcc/chunk/countryside/scene/rice/chunk_country_empty_03.tscn
+++ b/tgcc/chunk/countryside/scene/rice/chunk_country_empty_03.tscn
@@ -71,67 +71,67 @@ transform = Transform3D(1.7, 0, 0, 0, 1.7, 0, 0, 0, 1.7, -5.5632, -0.14742994, 3
 script = ExtResource("5_22afi")
 scala_massima = 1.1
 
-[node name="Tree_02" parent="tree" unique_id=678891384 instance=ExtResource("6_o4mrg")]
+[node name="Tree_02" parent="tree" unique_id=678891384 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.29938805, 0, -0.7966952, 0, 0.8510913, 0, 0.7966952, 0, 0.29938805, -0.38952708, 0.0867235, 1.7667623)
 
-[node name="Tree_03" parent="tree" unique_id=274883116 instance=ExtResource("6_o4mrg")]
+[node name="Tree_03" parent="tree" unique_id=274883116 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.74109775, 0, -0.22520898, 0, 0.77456117, 0, 0.22520898, 0, -0.74109775, 1.8829049, 0.0867235, 1.5336914)
 
-[node name="Tree_04" parent="tree" unique_id=238510396 instance=ExtResource("6_o4mrg")]
+[node name="Tree_04" parent="tree" unique_id=238510396 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-1.0050138, 0, 0.043901123, 0, 1.0059723, 0, -0.043901123, 0, -1.0050138, 0.74668837, 0.0867235, -0.24346757)
 
-[node name="Tree_05" parent="tree" unique_id=466988009 instance=ExtResource("6_o4mrg")]
+[node name="Tree_05" parent="tree" unique_id=466988009 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.13193716, 0, 0.9404468, 0, 0.94965655, 0, -0.9404468, 0, 0.13193716, 4.2761, 0.0867235, -1.4199381)
 
-[node name="Tree_06" parent="tree" unique_id=1072663130 instance=ExtResource("6_o4mrg")]
+[node name="Tree_06" parent="tree" unique_id=1072663130 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.30659983, 0, -0.7438946, 0, 0.8046009, 0, 0.7438946, 0, 0.30659983, 5.4123154, 0.0867235, 1.3477685)
 
-[node name="Tree_07" parent="tree" unique_id=115507207 instance=ExtResource("6_o4mrg")]
+[node name="Tree_07" parent="tree" unique_id=115507207 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.76092607, 0, 0.023468828, 0, 0.7612879, 0, -0.023468828, 0, -0.76092607, 7.1020727, 0.0867235, 2.0178452)
 
-[node name="Tree_08" parent="tree" unique_id=1561772854 instance=ExtResource("6_o4mrg")]
+[node name="Tree_08" parent="tree" unique_id=1561772854 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.63023233, 0, 0.48905104, 0, 0.79772407, 0, -0.48905104, 0, -0.63023233, 7.3934116, 0.0867235, -0.25458765)
 
-[node name="Tree_09" parent="tree" unique_id=313944963 instance=ExtResource("6_o4mrg")]
+[node name="Tree_09" parent="tree" unique_id=313944963 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.7222728, 0, 0.39546818, 0, 0.82345194, 0, -0.39546818, 0, -0.7222728, 6.8398695, 0.0867235, -2.3813524)
 
-[node name="Tree_10" parent="tree" unique_id=122393023 instance=ExtResource("6_o4mrg")]
+[node name="Tree_10" parent="tree" unique_id=122393023 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.93547463, 0, 0.33586454, 0, 0.99394053, 0, -0.33586454, 0, -0.93547463, 6.927271, 0.0867235, -4.9742575)
 
-[node name="Tree_11" parent="tree" unique_id=1946224600 instance=ExtResource("6_o4mrg")]
+[node name="Tree_11" parent="tree" unique_id=1946224600 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.55466866, 0, -0.89065087, 0, 1.0492456, 0, 0.89065087, 0, -0.55466866, 3.3978593, 0.0867235, -4.9742575)
 
-[node name="Tree_12" parent="tree" unique_id=52099570 instance=ExtResource("6_o4mrg")]
+[node name="Tree_12" parent="tree" unique_id=52099570 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.49727297, 0, 0.6585089, 0, 0.82517534, 0, -0.6585089, 0, 0.49727297, 1.2128274, 0.0867235, -3.2844996)
 
-[node name="Tree_13" parent="tree" unique_id=533097036 instance=ExtResource("6_o4mrg")]
+[node name="Tree_13" parent="tree" unique_id=533097036 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.93419886, 0, 0.40311188, 0, 1.017461, 0, -0.40311188, 0, 0.93419886, -1.0596058, 0.0867235, -1.7404108)
 
-[node name="Tree_14" parent="tree" unique_id=1799822151 instance=ExtResource("6_o4mrg")]
+[node name="Tree_14" parent="tree" unique_id=1799822151 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.7729016, 0, 0.7029506, 0, 1.0447567, 0, -0.7029506, 0, 0.7729016, -0.41866302, 0.0867235, -4.6537867)
 
-[node name="Tree_15" parent="tree" unique_id=20940384 instance=ExtResource("6_o4mrg")]
+[node name="Tree_15" parent="tree" unique_id=20940384 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.21265577, 0, -0.9430117, 0, 0.96669203, 0, 0.9430117, 0, 0.21265577, 0.48448348, 0.0867235, -6.4892135)
 
-[node name="Tree_16" parent="tree" unique_id=1547596252 instance=ExtResource("6_o4mrg")]
+[node name="Tree_16" parent="tree" unique_id=1547596252 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.7224034, 0, -0.56015676, 0, 0.91413474, 0, 0.56015676, 0, -0.7224034, 3.8057318, 0.0867235, -7.275826)
 
-[node name="Tree_17" parent="tree" unique_id=1911024433 instance=ExtResource("6_o4mrg")]
+[node name="Tree_17" parent="tree" unique_id=1911024433 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.7111182, 0, 0.61400616, 0, 0.93951726, 0, -0.61400616, 0, -0.7111182, 7.9135923, 0.0867235, -7.4214945)
 
-[node name="Tree_18" parent="tree" unique_id=728179114 instance=ExtResource("6_o4mrg")]
+[node name="Tree_18" parent="tree" unique_id=728179114 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.71622694, 0, 0.7039445, 0, 1.0042504, 0, -0.7039445, 0, 0.71622694, 7.7679234, 0.0867235, -4.566386)
 
-[node name="Tree_19" parent="tree" unique_id=466895741 instance=ExtResource("6_o4mrg")]
+[node name="Tree_19" parent="tree" unique_id=466895741 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.8202933, 0, -0.5276438, 0, 0.9753405, 0, 0.5276438, 0, 0.8202933, 7.942726, 0.0867235, -1.4199398)
 
-[node name="Tree_20" parent="tree" unique_id=960181762 instance=ExtResource("6_o4mrg")]
+[node name="Tree_20" parent="tree" unique_id=960181762 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.554579, 0, 0.91229934, 0, 1.0676366, 0, -0.91229934, 0, -0.554579, 4.5340776, 0.0867235, -2.8183599)
 
-[node name="Tree_21" parent="tree" unique_id=900507490 instance=ExtResource("6_o4mrg")]
+[node name="Tree_21" parent="tree" unique_id=900507490 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(-0.28730845, 0, 0.8336728, 0, 0.88179165, 0, -0.8336728, 0, -0.28730845, 2.7693715, 0.0867235, -1.6418893)
 
-[node name="Tree_22" parent="tree" unique_id=1749682186 instance=ExtResource("6_o4mrg")]
+[node name="Tree_22" parent="tree" unique_id=1749682186 groups=["weather_node", "wind_node"] instance=ExtResource("6_o4mrg")]
 transform = Transform3D(0.29675677, 0, -0.85609794, 0, 0.906073, 0, 0.85609794, 0, 0.29675677, 2.7693715, 0.0867235, -1.6418893)
 
 [node name="Flower36" parent="." unique_id=705935685 instance=ExtResource("8_1h35v")]
diff --git a/tgcc/chunk/countryside/scene/rice/chunk_country_straight_02.tscn b/tgcc/chunk/countryside/scene/rice/chunk_country_straight_02.tscn
index 0f88f53..a42e7b0 100644
--- a/tgcc/chunk/countryside/scene/rice/chunk_country_straight_02.tscn
+++ b/tgcc/chunk/countryside/scene/rice/chunk_country_straight_02.tscn
@@ -244,7 +244,7 @@ surface_material_override/0 = ExtResource("5_sy58u")
 surface_material_override/1 = ExtResource("5_sy58u")
 surface_material_override/2 = ExtResource("6_eev23")
 
-[node name="Statue" parent="." index="11" unique_id=1814801509]
+[node name="Statue" parent="." index="11" unique_id=1814801509 groups=["weather_node"]]
 surface_material_override/0 = ExtResource("5_sy58u")
 surface_material_override/1 = ExtResource("7_q2s76")
 
diff --git a/tgcc/chunk/countryside/scene/rice/chunk_country_straight_03.tscn b/tgcc/chunk/countryside/scene/rice/chunk_country_straight_03.tscn
index 7c917ad..05e18f6 100644
--- a/tgcc/chunk/countryside/scene/rice/chunk_country_straight_03.tscn
+++ b/tgcc/chunk/countryside/scene/rice/chunk_country_straight_03.tscn
@@ -90,19 +90,19 @@ script = ExtResource("2_e417f")
 north = true
 south = true
 
-[node name="Argini_003" parent="." index="0" unique_id=1178813592]
+[node name="Argini_003" parent="." index="0" unique_id=509439881]
 surface_material_override/0 = ExtResource("2_8tada")
 
-[node name="Grass_005" parent="." index="1" unique_id=1427965126 groups=["weather_vegetables_node", "wind_node"]]
+[node name="Grass_005" parent="." index="1" unique_id=188609017 groups=["weather_vegetables_node", "wind_node"]]
 surface_material_override/0 = ExtResource("2_8tada")
 
-[node name="MSH_Staccioanta_1_002" parent="." index="2" unique_id=562234307]
+[node name="MSH_Staccioanta_1_002" parent="." index="2" unique_id=746941179]
 surface_material_override/0 = ExtResource("2_vjhke")
 
-[node name="Strada_004" parent="." index="3" unique_id=387203009 groups=["weather_node"]]
+[node name="Strada_004" parent="." index="3" unique_id=604168900 groups=["weather_node"]]
 surface_material_override/0 = ExtResource("3_bdsn7")
 
-[node name="Water_004" parent="." index="4" unique_id=1258756459]
+[node name="Water_004" parent="." index="4" unique_id=244513747]
 surface_material_override/0 = ExtResource("5_uf7g8")
 
 [node name="grass" type="Node3D" parent="." index="5" unique_id=1540226859 groups=["weather_vegetables_node", "wind_node"]]
diff --git a/tgcc/chunk/countryside/scene/rice/chunk_country_straight_04.tscn b/tgcc/chunk/countryside/scene/rice/chunk_country_straight_04.tscn
index 30dfc38..2ffbaea 100644
--- a/tgcc/chunk/countryside/scene/rice/chunk_country_straight_04.tscn
+++ b/tgcc/chunk/countryside/scene/rice/chunk_country_straight_04.tscn
@@ -61,7 +61,7 @@ south = true
 [node name="Argini_003" parent="." index="0" unique_id=509439881]
 surface_material_override/0 = ExtResource("3_c4jie")
 
-[node name="Grass_005" parent="." index="1" unique_id=188609017 groups=["weather_vegetables_node", "wind_node"]]
+[node name="Grass_005" parent="." index="1" unique_id=188609017]
 surface_material_override/0 = ExtResource("3_c4jie")
 
 [node name="MSH_Staccioanta_1_002" parent="." index="2" unique_id=746941179]
@@ -70,7 +70,7 @@ surface_material_override/0 = ExtResource("4_lr7xw")
 [node name="Strada_004" parent="." index="3" unique_id=604168900 groups=["weather_node"]]
 surface_material_override/0 = ExtResource("5_5jc2f")
 
-[node name="Water_004" parent="." index="4" unique_id=244513747]
+[node name="Water_004" parent="." index="4" unique_id=244513747 groups=["weather_node"]]
 surface_material_override/0 = ExtResource("6_0bmh1")
 
 [node name="grass" type="Node3D" parent="." index="5" unique_id=1540226859 groups=["weather_vegetables_node", "wind_node"]]
diff --git a/tgcc/chunk/countryside/scene/rice/river/scene/chunk_river_mix2_1.tscn b/tgcc/chunk/countryside/scene/rice/river/scene/chunk_river_mix2_1.tscn
index d97e817..72ff1d0 100644
--- a/tgcc/chunk/countryside/scene/rice/river/scene/chunk_river_mix2_1.tscn
+++ b/tgcc/chunk/countryside/scene/rice/river/scene/chunk_river_mix2_1.tscn
@@ -121,7 +121,7 @@ transform = Transform3D(-2.105941, -1.3013108, -3.4868522, -7.450568e-08, -0.647
 surface_material_override/0 = ExtResource("3_6i64l")
 surface_material_override/1 = ExtResource("3_6i64l")
 
-[node name="Cortile_008" parent="." index="3" unique_id=919013044]
+[node name="Cortile_008" parent="." index="3" unique_id=919013044 groups=["weather_node"]]
 surface_material_override/0 = ExtResource("4_chuhj")
 
 [node name="Cube_037" parent="." index="4" unique_id=1360593188 groups=["weather_node"]]
diff --git a/tgcc/chunk/countryside/scene/tea/chunk_country_tea_empty.tscn b/tgcc/chunk/countryside/scene/tea/chunk_country_tea_empty.tscn
index 82146af..b29c54e 100644
--- a/tgcc/chunk/countryside/scene/tea/chunk_country_tea_empty.tscn
+++ b/tgcc/chunk/countryside/scene/tea/chunk_country_tea_empty.tscn
@@ -85,7 +85,7 @@ surface_material_override/0 = ExtResource("3_h7374")
 [node name="grass_001" parent="." index="3" unique_id=1653206836]
 surface_material_override/0 = ExtResource("4_aco6i")
 
-[node name="Tea2" type="Node3D" parent="." index="4" unique_id=515491080 groups=["weather_vegetables_node", "wind_node"]]
+[node name="Tea2" type="Node3D" parent="." index="4" unique_id=515491080 groups=["weather_vegetables_node"]]
 
 [node name="tea_plane" type="MeshInstance3D" parent="Tea2" index="0" unique_id=1884512502]
 transform = Transform3D(1, 0, 0, 0, -4.371139e-08, -1, 0, 1, -4.371139e-08, 0, 0, 0)
diff --git a/tgcc/chunk/countryside/scene/tea/chunk_country_tea_end_03.tscn b/tgcc/chunk/countryside/scene/tea/chunk_country_tea_end_03.tscn
index 8bf3d63..8f539c8 100644
--- a/tgcc/chunk/countryside/scene/tea/chunk_country_tea_end_03.tscn
+++ b/tgcc/chunk/countryside/scene/tea/chunk_country_tea_end_03.tscn
@@ -164,14 +164,14 @@ material_override = ExtResource("8_klscp")
 cast_shadow = 0
 multimesh = SubResource("MultiMesh_2xngq")
 
-[node name="Tea2" type="Node3D" parent="." index="9" unique_id=153529085 groups=["weather_vegetables_node", "wind_node"]]
+[node name="Tea2" type="Node3D" parent="." index="9" unique_id=153529085 groups=["weather_vegetables_node"]]
 
 [node name="tea_plane" type="MeshInstance3D" parent="Tea2" index="0" unique_id=1170491878]
 transform = Transform3D(1, 0, 0, 0, -4.371139e-08, -1, 0, 1, -4.371139e-08, 0, 0, 0)
 visible = false
 mesh = SubResource("PlaneMesh_ny8qj")
 
-[node name="bush" type="MultiMeshInstance3D" parent="Tea2" index="1" unique_id=763333607]
+[node name="bush" type="MultiMeshInstance3D" parent="Tea2" index="1" unique_id=763333607 groups=["weather_vegetables_node"]]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.36843967, 0)
 material_override = ExtResource("14_820gh")
 cast_shadow = 0
diff --git a/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_curve_3.tscn b/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_curve_3.tscn
index c11bb8c..d0546d3 100644
--- a/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_curve_3.tscn
+++ b/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_curve_3.tscn
@@ -207,13 +207,13 @@ scala_correzione_xz = 4.955
 scala_correzione_y = 5.945
 altezza_massima = 2.0
 
-[node name="tea_big" parent="." index="12" unique_id=1080521676 groups=["weather_node"] instance=ExtResource("19_5lxs6")]
+[node name="tea_big" parent="." index="12" unique_id=1080521676 groups=["weather_vegetables_node"] instance=ExtResource("19_5lxs6")]
 transform = Transform3D(-4.371139e-08, 0, -0.8607846, 0, 1, 0, 1, 0, -3.762609e-08, 6.137363, 0, 0.21655339)
 
-[node name="tea_medium" parent="." index="13" unique_id=774250378 groups=["weather_node"] instance=ExtResource("20_v5b08")]
+[node name="tea_medium" parent="." index="13" unique_id=774250378 groups=["weather_vegetables_node"] instance=ExtResource("20_v5b08")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 0.8468988, -4.717209, 0, -5.866095)
 
-[node name="tea_small" parent="." index="14" unique_id=738556947 groups=["weather_node"] instance=ExtResource("21_1bp38")]
+[node name="tea_small" parent="." index="14" unique_id=738556947 groups=["weather_vegetables_node"] instance=ExtResource("21_1bp38")]
 transform = Transform3D(-3.4182502e-08, 0, -1, 0, 1, 0, 0.7820045, 0, -4.371139e-08, 1.4791412, 0, -5.8110795)
 
 [node name="Node3D" type="Node3D" parent="." index="15" unique_id=1498631029]
diff --git a/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_straight_5.tscn b/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_straight_5.tscn
index 06b6e2f..a1c7733 100644
--- a/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_straight_5.tscn
+++ b/tgcc/chunk/countryside/scene/tea/river/chunk_river_tea_straight_5.tscn
@@ -58,17 +58,17 @@ script = ExtResource("2_a7g4w")
 river_north = true
 river_south = true
 
-[node name="Argini_011" parent="." index="0" unique_id=895986402]
+[node name="Argini_011" parent="." index="0" unique_id=1103166467]
 surface_material_override/0 = ExtResource("3_v8v20")
 surface_material_override/1 = ExtResource("3_v8v20")
 
-[node name="Grass_019" parent="." index="1" unique_id=1784106582]
+[node name="Grass_019" parent="." index="1" unique_id=163702648]
 surface_material_override/0 = ExtResource("3_v8v20")
 
-[node name="Water_012" parent="." index="2" unique_id=1865739867]
+[node name="Water_012" parent="." index="2" unique_id=183333409]
 surface_material_override/0 = ExtResource("5_fp6q1")
 
-[node name="Water_F_015" parent="." index="3" unique_id=147107428]
+[node name="Water_F_015" parent="." index="3" unique_id=1691016237]
 surface_material_override/0 = ExtResource("5_8ajan")
 
 [node name="grass2" type="Node3D" parent="." index="4" unique_id=451356134 groups=["weather_vegetables_node", "wind_node"]]
@@ -206,8 +206,8 @@ scala_correzione_xz = 4.955
 scala_correzione_y = 5.945
 altezza_massima = 2.0
 
-[node name="tea_small" parent="." index="12" unique_id=738556947 instance=ExtResource("13_oha7e")]
+[node name="tea_small" parent="." index="12" unique_id=738556947 groups=["weather_vegetables_node"] instance=ExtResource("13_oha7e")]
 transform = Transform3D(-2.958303e-08, 0, -1, 0, 1, 0, 0.6767808, 0, -4.371139e-08, -6.1359725, 0, 5.9230976)
 
-[node name="tea_small2" parent="." index="13" unique_id=1500366807 instance=ExtResource("13_oha7e")]
+[node name="tea_small2" parent="." index="13" unique_id=1500366807 groups=["weather_vegetables_node"] instance=ExtResource("13_oha7e")]
 transform = Transform3D(-2.958303e-08, 0, -1, 0, 1, 0, 0.6767808, 0, -4.371139e-08, 5.933122, 0, -5.890115)
diff --git a/tgcc/train/train.tscn b/tgcc/train/train.tscn
index 79aa4f2..9a145a2 100644
--- a/tgcc/train/train.tscn
+++ b/tgcc/train/train.tscn
@@ -8,20 +8,18 @@
 [ext_resource type="Script" uid="uid://5frq4qrokiy2" path="res://tgcc/train/train_glass_emission.gd" id="9_4qk3b"]
 [ext_resource type="Texture2D" uid="uid://j4m5wsf4magb" path="res://tgcc/chunk/material/decal/vending_decal.png" id="9_eke0t"]
 
-[node name="Treno" unique_id=1182090923 instance=ExtResource("1_33mei")]
+[node name="Treno" unique_id=1182090923 groups=["weather_node"] instance=ExtResource("1_33mei")]
 script = ExtResource("9_4qk3b")
 
-[node name="Finestrini" parent="." index="0" unique_id=271431519]
+[node name="Finestrini" parent="." index="0" unique_id=435624928]
 surface_material_override/0 = ExtResource("2_bks4l")
 surface_material_override/1 = ExtResource("3_sgpgi")
 surface_material_override/2 = ExtResource("4_gua5y")
 
-[node name="Ruote" parent="." index="1" unique_id=1570760095]
+[node name="Ruote" parent="." index="1" unique_id=1465803702]
 surface_material_override/0 = ExtResource("5_pj7tp")
 surface_material_override/1 = ExtResource("4_gua5y")
 
-[node name="Train" parent="." index="2" unique_id=301191703 groups=["weather_node"]]
-
 [node name="SpotLight3D2" type="SpotLight3D" parent="." index="3" unique_id=806665693]
 transform = Transform3D(-0.9991066, -0.0071845297, -0.041647736, -0.024456872, 0.9019672, 0.4311113, 0.034467563, 0.4317447, -0.9013371, -0.9830586, 3.6702201, 4.8446546)
 light_color = Color(0.8039216, 0.6784314, 0.3254902, 1)
diff --git a/tgcc/train/wagon.tscn b/tgcc/train/wagon.tscn
index b957a69..c5f6b52 100644
--- a/tgcc/train/wagon.tscn
+++ b/tgcc/train/wagon.tscn
@@ -31,7 +31,7 @@ shader_parameter/glint_sharpness = 32.0
 shader_parameter/emission_color = Color(0.5882353, 0.06666667, 0.10980392, 1)
 shader_parameter/emission_energy = 6.50000030875
 
-[node name="wagon" unique_id=14655460 instance=ExtResource("1_ud2nc")]
+[node name="wagon" unique_id=14655460 groups=["weather_node"] instance=ExtResource("1_ud2nc")]
 
 [node name="Finestrini_001" parent="." index="0" unique_id=596055029]
 surface_material_override/0 = ExtResource("2_upuw2")
@@ -42,14 +42,14 @@ surface_material_override/2 = ExtResource("4_wwpam")
 surface_material_override/0 = ExtResource("5_yjhvb")
 surface_material_override/1 = ExtResource("4_wwpam")
 
-[node name="Train_001" parent="." index="2" unique_id=2037201435 groups=["weather_node"]]
+[node name="Train_001" parent="." index="2" unique_id=2037201435]
 surface_material_override/0 = ExtResource("6_6ck1e")
 surface_material_override/1 = ExtResource("7_wglgp")
 surface_material_override/2 = ExtResource("2_upuw2")
 surface_material_override/3 = ExtResource("4_wwpam")
 surface_material_override/4 = SubResource("ShaderMaterial_t2dm3")
 
-[node name="Train_002" parent="." index="3" unique_id=57076645 groups=["weather_node"]]
+[node name="Train_002" parent="." index="3" unique_id=57076645]
 surface_material_override/0 = ExtResource("6_6ck1e")
 
 [node name="Decal6" type="Decal" parent="." index="4" unique_id=207551392]