Implements tree visibility occlusion system.

Adds tree fading based on camera line of sight.
Trees now fade out when they obstruct the player's view,
improving visibility.

Also includes several fixes:
- Fixes tree distribution.
- Adds a see-through shader.
- Adds camera and occlusion scripts.

Entities/Tree/Tree.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=4 format=3 uid="uid://c27fogucecn0r"]
+[gd_scene load_steps=5 format=3 uid="uid://c27fogucecn0r"]
 
 [ext_resource type="Script" uid="uid://lcedx3lau6v5" path="res://Entities/Tree/scripts/tree.gd" id="1_702jv"]
 
@@ -8,6 +8,9 @@ height = 0.5
 
 [sub_resource type="SphereShape3D" id="SphereShape3D_702jv"]
 
+[sub_resource type="CapsuleShape3D" id="CapsuleShape3D_702jv"]
+radius = 0.6
+
 [node name="Tree" type="Node3D"]
 script = ExtResource("1_702jv")
 
@@ -20,3 +23,15 @@ shape = SubResource("CapsuleShape3D_s6kdm")
 
 [node name="CollisionShape3D" type="CollisionShape3D" parent="InteractRange"]
 shape = SubResource("SphereShape3D_702jv")
+
+[node name="VisibilityArea" type="StaticBody3D" parent="." groups=["tree_visibility"]]
+collision_layer = 2
+collision_mask = 2
+
+[node name="VisibilityShape" type="CollisionShape3D" parent="VisibilityArea"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.616604, 0)
+shape = SubResource("CapsuleShape3D_702jv")
+debug_color = Color(0.837648, 0.364145, 0.346694, 0.42)
+
+[node name="LastBlocked" type="Timer" parent="."]
+wait_time = 0.5

Entities/Tree/scripts/tree.gd

@@ -1,20 +1,22 @@
 class_name TreeNode
 extends Node3D
 
-@onready var area: Area3D = $InteractRange
-
 var tree_data: TreeDataResource
 var model_instance: Node3D
 var mesh_instances: Array[MeshInstance3D] = []
 var original_materials: Array[Material] = []
 var outline_material: Material
-var base_circle: MeshInstance3D
+var is_invisible: bool = false
-var circle_material: Material
+var fade_tween: Tween
+
+@onready var area: Area3D = $InteractRange
+@onready var last_blocked: Timer = $LastBlocked
 
 func _ready():
 	setup_outline_material()
 	area.body_entered.connect(_on_player_entered)
 	area.body_exited.connect(_on_player_exited)
+	last_blocked.timeout.connect(_on_fade_timer_timeout)
 
 func set_tree_data(data: TreeDataResource):
 	tree_data = data
@@ -36,16 +38,9 @@ func spawn_model():
 	tree_data.apply_seasonal_colors(model_instance, Season.current)
 	add_child(model_instance)
 	
-	
-	# Create base circle after model is loaded
-	if not base_circle:
-		create_base_circle()
-	
 	# Re-scan for mesh instances in the new model
 	find_all_mesh_instances(model_instance)
 	
-	update_outline_materials()
-	
 	# Apply any additional properties from tree_data
 	apply_tree_properties()
 
@@ -59,7 +54,7 @@ func apply_tree_properties():
 	
 	# Apply random scale based on tree properties
 	if tree_data.max_height > 0:
-		var scale_variation = randf_range(0.8, 1.2)
+		var scale_variation = randf_range(1.5, 2)
 		model_instance.scale *= scale_variation
 
 func setup_outline_material() -> void:
@@ -68,67 +63,113 @@ func setup_outline_material() -> void:
 	outline_material.shader = preload("res://outline.gdshader")
 	outline_material.set_shader_parameter("color", Vector3(0.702, 0.557, 0.259))
 
-func update_outline_materials():
-	if mesh_instances.is_empty():
-		print("Warning: No MeshInstance3D found in model!")
-		return
-	
-	# Store original materials for the new model
-	original_materials.clear()
-	for mesh in mesh_instances:
-		if mesh.get_surface_override_material(0):
-			original_materials.append(mesh.get_surface_override_material(0))
-		else:
-			original_materials.append(mesh.get_surface_override_material(0))
-
 func find_all_mesh_instances(node: Node):
 	if node is MeshInstance3D:
 		mesh_instances.append(node)
 	for child in node.get_children():
 		find_all_mesh_instances(child)
 
-func create_base_circle():
+func fade_out_tree_simple(duration: float = 0.25):
-	base_circle = MeshInstance3D.new()
+	# Reset the timer
-	add_child(base_circle)
+	last_blocked.stop()
+	last_blocked.start()
 	
-	# Create a flat cylinder for the circle
+	if is_invisible:
-	var cylinder = CylinderMesh.new()
+		return
-	cylinder.top_radius = 0.4 # Adjust size as needed
-	cylinder.bottom_radius = 0.4
-	cylinder.height = 1 # Very thin to make it look like a flat circle
-	cylinder.rings = 1
-	cylinder.radial_segments = 9 # More segments = smoother circle
-	base_circle.mesh = cylinder
 
-	# Create transparent material with outline
+	is_invisible = true
-	circle_material = StandardMaterial3D.new()
-	circle_material.flags_transparent = true
-	circle_material.albedo_color = Color(1.0, 0.843, 0.0, 0.0) # Fully transparent gold
 	
-	# Add rim lighting effect for outline appearance
+	# Kill any existing fade tween
-	circle_material.rim_enabled = true
+	if fade_tween:
-	circle_material.rim = 1.0
+		fade_tween.kill()
-	circle_material.rim_tint = 1.0
-	circle_material.rim_color = Color(1.0, 0.843, 0.0) # Gold rim
-	base_circle.material_override = circle_material
 	
-	base_circle.position.y = 1 # Slightly above ground to avoid z-fighting
+	for mesh_instance in mesh_instances:
+		fade_mesh_materials(mesh_instance, 1.0, 0.1, duration)
 
-	# Start hidden
+# This gets called when the timer times out
-	base_circle.visible = true
+func _on_fade_timer_timeout():
+	fade_in_tree_immediate()
 
+func fade_in_tree_immediate(duration: float = 0.25):
+	if not is_invisible:
+		return
+	
+	# Kill any existing fade tween
+	if fade_tween:
+		fade_tween.kill()
+	
+	for mesh_instance in mesh_instances:
+		fade_mesh_materials(mesh_instance, 0.1, 1.0, duration)
+	
+	is_invisible = false
+
+func fade_mesh_materials(mesh_instance: MeshInstance3D, from_alpha: float, to_alpha: float, duration: float):
+	if not mesh_instance.mesh:
+		return
+
+	var surface_count = mesh_instance.mesh.get_surface_count()
+
+	for surface_id in range(surface_count):
+		var material = mesh_instance.get_surface_override_material(surface_id)
+		
+		# Always ensure we have a unique material instance
+		if not material:
+				# No override material - duplicate from base material
+				var base_material = mesh_instance.mesh.surface_get_material(surface_id)
+				if base_material:
+						material = base_material.duplicate()
+						mesh_instance.set_surface_override_material(surface_id, material)
+		else:
+				# Override material exists - duplicate it to ensure uniqueness
+				material = material.duplicate()
+				mesh_instance.set_surface_override_material(surface_id, material)
+		
+		# Only work with StandardMaterial3D
+		if material and material is StandardMaterial3D:
+				var std_mat = material as StandardMaterial3D
+				
+				# Set transparency mode based on target alpha
+				if to_alpha < 1.0:
+						std_mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
+				
+				# Force shadow casting
+				mesh_instance.cast_shadow = GeometryInstance3D.SHADOW_CASTING_SETTING_ON
+				
+				# Set initial alpha
+				std_mat.albedo_color.a = from_alpha
+				
+				# Create and store the tween
+				fade_tween = create_tween()
+				fade_tween.tween_method(
+						func(alpha: float):
+								std_mat.albedo_color.a = alpha,
+						from_alpha, to_alpha, duration
+				)
+				
+				# When fading to full opacity, reset transparency mode
+				if to_alpha >= 1.0:
+						fade_tween.tween_callback(
+								func(): std_mat.transparency = BaseMaterial3D.TRANSPARENCY_DISABLED
+						)
+						
+func toggle_tree_visibility(duration: float = 1.0):
+	if is_invisible:
+		fade_in_tree_immediate(duration)
+	else:
+		fade_out_tree_simple(duration)
 
 func _on_player_entered(body: Node3D):
 	if body.is_in_group("player"):
-		base_circle.visible = true
 		# Apply outline to all mesh instances
+		if not is_invisible:
 			for mesh in mesh_instances:
 				mesh.material_overlay = outline_material
 
 func _on_player_exited(body: Node3D):
 	if body.is_in_group("player"):
 		Log.pr('Out of range...')
-		base_circle.visible = false
 		# Remove outline from all mesh instances
+		if not is_invisible:
+			# Reset the material overlay to null
 			for mesh in mesh_instances:
 				mesh.material_overlay = null

Utilities/MapData/MapPopulation.gd

@@ -44,7 +44,7 @@ static func calculate_tree_distribution(tree_preferences: Dictionary, density: f
 		return distribution
 	
 	# Calculate total number of trees for this cell
-	var total_trees = int((density / 2) * 10) + randi_range(1, 3)
+	var total_trees = int((density / 5) * 10) + randi_range(1, 2)
 	#var total_trees = int((density - 0.6) * 25) + randi_range(3, 8)
 
 	# Normalize the chances to get proportions

project.godot

@@ -64,6 +64,10 @@ jump={
 ]
 }
 
+[layer_names]
+
+3d_physics/layer_4="TreeVisibility"
+
 [network]
 
 limits/debugger/max_chars_per_second=1000000

see_through.gdshader

@@ -0,0 +1,41 @@
+shader_type spatial;
+
+// Uniforms that can be controlled from GDScript
+uniform float model_height : hint_range(0.1, 100.0) = 10.0;
+uniform float transition_width : hint_range(0.01, 0.5) = 0.1;
+uniform vec4 base_color : source_color = vec4(1.0, 1.0, 1.0, 1.0);
+uniform float effect_strength : hint_range(0.0, 1.0) = 1.0;
+uniform sampler2D main_texture : source_color;
+uniform float metallic : hint_range(0.0, 1.0) = 0.0;
+uniform float roughness : hint_range(0.0, 1.0) = 0.5;
+
+varying vec3 world_position;
+
+void vertex() {
+    world_position = VERTEX;
+}
+
+void fragment() {
+    // Get the base texture color
+    vec4 tex_color = texture(main_texture, UV);
+    
+    // Calculate normalized Y position (0.0 at bottom, 1.0 at top)
+    // This uses the local vertex position - adjust based on your model's bounds
+    float normalized_y = (world_position.y + model_height * 0.5) / model_height;
+    
+    // Define fade boundaries - top 80% invisible, bottom 20% visible
+    float fade_start = 0.2; // Start fading at 20% from bottom
+    float fade_end = fade_start - transition_width;
+    
+    // Calculate position-based alpha
+    float position_alpha = smoothstep(fade_end, fade_start, normalized_y);
+    
+    // Blend between full visibility and position-based alpha based on effect strength
+    float final_alpha = mix(1.0, position_alpha, effect_strength);
+    
+    // Set material properties
+    ALBEDO = base_color.rgb * tex_color.rgb;
+    ALPHA = base_color.a * tex_color.a * final_alpha;
+    METALLIC = metallic;
+    ROUGHNESS = roughness;
+}

see_through.gdshader.uid

@@ -0,0 +1 @@
+uid://djv8r207ldqn1

stages/Test3D/Test3d.tscn

@@ -1,10 +1,12 @@
-[gd_scene load_steps=53 format=4 uid="uid://bwsugg4p50fjr"]
+[gd_scene load_steps=55 format=4 uid="uid://bwsugg4p50fjr"]
 
 [ext_resource type="Environment" uid="uid://cm77bbr0io118" path="res://Stages/Test3D/new_environment.tres" id="1_8ph61"]
 [ext_resource type="Script" uid="uid://bwed2dwogfmxv" path="res://Entities/Player/scripts/player.gd" id="1_d602n"]
 [ext_resource type="AnimationLibrary" uid="uid://bwnn7vpd0dqds" path="res://Common/animations/basic-movement.res" id="1_tfa5t"]
 [ext_resource type="Script" uid="uid://bbjv6a7yg7m02" path="res://Stages/Test3D/camera_pivot.gd" id="2_sdmks"]
 [ext_resource type="Shader" uid="uid://bsemnmdracd4m" path="res://Common/shaders/outline.gdshader" id="4_feu7y"]
+[ext_resource type="Script" uid="uid://cjbk6jnxla4mn" path="res://Stages/Test3D/camera_3d.gd" id="5_fm6lr"]
+[ext_resource type="PackedScene" uid="uid://isogcpkb8su4" path="res://Entities/Tree/assets/temp/tent_detailedOpen.glb" id="9_4jb6r"]
 [ext_resource type="Script" uid="uid://bjco8musjqog4" path="res://Stages/Test3D/particles.gd" id="9_oiyue"]
 [ext_resource type="PackedScene" uid="uid://cdbnr0jg2icaj" path="res://Entities/Tree/assets/temp/campfire_bricks.glb" id="13_qasnx"]
 [ext_resource type="PackedScene" uid="uid://c4ovjmemnepdy" path="res://Entities/Tree/assets/temp/campfire_logs.glb" id="14_2xm50"]
@@ -372,42 +374,6 @@ size = Vector2(2, 2)
 [sub_resource type="BoxShape3D" id="BoxShape3D_tfa5t"]
 size = Vector3(60, 0, 20)
 
-[sub_resource type="Curve" id="Curve_5r2bu"]
-_data = [Vector2(0.003125, 0.0237797), 0.0, 0.0, 0, 0, Vector2(0.21875, 0.877972), 0.0, 0.0, 0, 0, Vector2(0.41875, 0.194618), 0.0, 0.0, 0, 0, Vector2(0.478125, 0.576971), -7.27116, -7.27116, 0, 0, Vector2(0.621875, 0.227159), 0.0, 0.0, 0, 0, Vector2(0.7625, 0.365457), 0.0, 0.0, 0, 0, Vector2(1, 0.04005), 0.0, 0.0, 0, 0]
-point_count = 7
-
-[sub_resource type="CurveTexture" id="CurveTexture_23r73"]
-curve = SubResource("Curve_5r2bu")
-
-[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_p5fn2"]
-emission_shape = 6
-emission_ring_axis = Vector3(0, 1, 0)
-emission_ring_height = 1.0
-emission_ring_radius = 5.0
-emission_ring_inner_radius = 0.0
-emission_ring_cone_angle = 90.0
-direction = Vector3(0.2, -1, 0)
-spread = 5.0
-initial_velocity_max = 10.0
-scale_min = 0.1
-alpha_curve = SubResource("CurveTexture_23r73")
-collision_mode = 2
-
-[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_p5fn2"]
-transparency = 1
-cull_mode = 2
-shading_mode = 0
-vertex_color_use_as_albedo = true
-albedo_color = Color(1, 1, 1, 0.807843)
-albedo_texture = ExtResource("23_23r73")
-use_particle_trails = true
-
-[sub_resource type="RibbonTrailMesh" id="RibbonTrailMesh_5r2bu"]
-material = SubResource("StandardMaterial3D_p5fn2")
-size = 0.025
-sections = 2
-section_segments = 1
-
 [sub_resource type="Curve" id="Curve_ukp6m"]
 _data = [Vector2(0, 0), 0.0, 0.0, 0, 0, Vector2(0.515625, 1), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
 point_count = 3
@@ -450,6 +416,42 @@ material = SubResource("StandardMaterial3D_hvb1l")
 size = Vector2(0.2, 0.2)
 orientation = 0
 
+[sub_resource type="Curve" id="Curve_5r2bu"]
+_data = [Vector2(0.003125, 0.0237797), 0.0, 0.0, 0, 0, Vector2(0.21875, 0.877972), 0.0, 0.0, 0, 0, Vector2(0.41875, 0.194618), 0.0, 0.0, 0, 0, Vector2(0.478125, 0.576971), -7.27116, -7.27116, 0, 0, Vector2(0.621875, 0.227159), 0.0, 0.0, 0, 0, Vector2(0.7625, 0.365457), 0.0, 0.0, 0, 0, Vector2(1, 0.04005), 0.0, 0.0, 0, 0]
+point_count = 7
+
+[sub_resource type="CurveTexture" id="CurveTexture_23r73"]
+curve = SubResource("Curve_5r2bu")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_p5fn2"]
+emission_shape = 6
+emission_ring_axis = Vector3(0, 1, 0)
+emission_ring_height = 1.0
+emission_ring_radius = 5.0
+emission_ring_inner_radius = 0.0
+emission_ring_cone_angle = 90.0
+direction = Vector3(0.2, -1, 0)
+spread = 5.0
+initial_velocity_max = 10.0
+scale_min = 0.1
+alpha_curve = SubResource("CurveTexture_23r73")
+collision_mode = 2
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_p5fn2"]
+transparency = 1
+cull_mode = 2
+shading_mode = 0
+vertex_color_use_as_albedo = true
+albedo_color = Color(1, 1, 1, 0.807843)
+albedo_texture = ExtResource("23_23r73")
+use_particle_trails = true
+
+[sub_resource type="RibbonTrailMesh" id="RibbonTrailMesh_5r2bu"]
+material = SubResource("StandardMaterial3D_p5fn2")
+size = 0.025
+sections = 2
+section_segments = 1
+
 [node name="Test3d" type="Node3D"]
 
 [node name="WorldEnvironment" type="WorldEnvironment" parent="."]
@@ -748,9 +750,10 @@ script = ExtResource("2_sdmks")
 transform = Transform3D(1, 0, 0, 0, 1, 1.78814e-07, 0, -3.27826e-07, 1, 0, 0, 7)
 projection = 1
 current = true
-size = 3.0
+size = 4.0
 near = 0.001
 far = 100.0
+script = ExtResource("5_fm6lr")
 
 [node name="PostProcessing" type="MeshInstance3D" parent="SubViewportContainer/SubViewport/Player/CameraPivot/Camera3D"]
 unique_name_in_owner = true
@@ -759,6 +762,9 @@ visible = false
 extra_cull_margin = 16384.0
 mesh = SubResource("QuadMesh_tfa5t")
 
+[node name="RayCast3D" type="RayCast3D" parent="SubViewportContainer/SubViewport/Player/CameraPivot/Camera3D"]
+collision_mask = 3
+
 [node name="Environment" type="Node3D" parent="SubViewportContainer/SubViewport"]
 
 [node name="Ground" type="StaticBody3D" parent="SubViewportContainer/SubViewport/Environment"]
@@ -781,17 +787,49 @@ unique_name_in_owner = true
 
 [node name="Objects" type="Node3D" parent="SubViewportContainer/SubViewport/Camp"]
 
-[node name="tent-canvas2" parent="SubViewportContainer/SubViewport/Camp/Objects" instance=ExtResource("23_5r2bu")]
+[node name="Camp" type="Node3D" parent="SubViewportContainer/SubViewport/Camp/Objects"]
-transform = Transform3D(0.964438, 0, -0.264311, 0, 1, 0, 0.264311, 0, 0.964438, -1.40178, 0, -1.67128)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.718493, 0, -0.353187)
 
-[node name="campfire_bricks2" parent="SubViewportContainer/SubViewport/Camp/Objects" instance=ExtResource("13_qasnx")]
+[node name="tent_detailedOpen2" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp" instance=ExtResource("9_4jb6r")]
+transform = Transform3D(-0.993544, 0, 0.113446, 0, 1, 0, -0.113446, 0, -0.993544, -0.933611, 0.05, -1.63291)
+
+[node name="tent-canvas2" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp" instance=ExtResource("23_5r2bu")]
+transform = Transform3D(0.964438, 0, -0.264311, 0, 1, 0, 0.264311, 0, 0.964438, -1.40178, 0, -1.67128)
+visible = false
+
+[node name="Campfire" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp" instance=ExtResource("13_qasnx")]
 transform = Transform3D(0.7, 0, 0, 0, 0.7, 0, 0, 0, 0.7, -0.93138, 0.05, -0.326702)
 
-[node name="campfire_logs2" parent="SubViewportContainer/SubViewport/Camp/Objects/campfire_bricks2" instance=ExtResource("14_2xm50")]
+[node name="campfire_logs2" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp/Campfire" instance=ExtResource("14_2xm50")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.0053246, 0, 0.0117908)
 
-[node name="log2" parent="SubViewportContainer/SubViewport/Camp/Objects" instance=ExtResource("15_e0hgm")]
+[node name="Fire" type="GPUParticles3D" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp/Campfire"]
-transform = Transform3D(0.440003, 0, 0.237482, 0, 0.5, 0, -0.237482, 0, 0.440003, -0.565749, 0.0532002, -0.598678)
+transform = Transform3D(1.42857, 0, 0, 0, 1.42857, 0, 0, 0, 1.42857, 0, 0, 0)
+amount = 50
+lifetime = 0.4
+speed_scale = 0.4
+process_material = SubResource("ParticleProcessMaterial_xvexm")
+draw_pass_1 = SubResource("QuadMesh_hvb1l")
+
+[node name="OmniLight3D" type="OmniLight3D" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp/Campfire/Fire"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.000509977, 0.121094, -0.00151992)
+light_color = Color(0.89, 0.461613, 0.2136, 1)
+light_energy = 0.923321
+light_indirect_energy = 1.084
+light_volumetric_fog_energy = 3.764
+light_size = 0.105
+shadow_enabled = true
+distance_fade_enabled = true
+distance_fade_begin = 386.01
+distance_fade_shadow = 45.9
+distance_fade_length = 28.05
+script = ExtResource("22_ukp6m")
+
+[node name="log2" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp" instance=ExtResource("15_e0hgm")]
+transform = Transform3D(0.440003, 0, 0.237482, 0, 0.5, 0, -0.237482, 0, 0.440003, -0.566, 0.006, -0.599)
+
+[node name="bed_floor2" parent="SubViewportContainer/SubViewport/Camp/Objects/Camp" instance=ExtResource("15_pbfwi")]
+transform = Transform3D(0.72094, 0, -0.346764, 0, 0.8, 0, 0.346764, 0, 0.72094, -1.4942, 0.00999988, -0.784986)
 
 [node name="statue_column2" parent="SubViewportContainer/SubViewport/Camp/Objects" instance=ExtResource("16_ynokf")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -2.654, 0, -2.707)
@@ -805,9 +843,6 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -2.727, 0, 0.611)
 [node name="statue_columnDamaged2" parent="SubViewportContainer/SubViewport/Camp/Objects" instance=ExtResource("17_pbfwi")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.609224, 0, 0.72)
 
-[node name="bed_floor2" parent="SubViewportContainer/SubViewport/Camp/Objects" instance=ExtResource("15_pbfwi")]
-transform = Transform3D(0.72094, 0, -0.346764, 0, 0.8, 0, 0.346764, 0, 0.72094, -1.54675, 0.0359214, -1.37165)
-
 [node name="VFX" type="Node3D" parent="SubViewportContainer/SubViewport/Camp"]
 
 [node name="Rain" type="GPUParticles3D" parent="SubViewportContainer/SubViewport/Camp/VFX"]
@@ -821,28 +856,6 @@ trail_lifetime = 0.1
 process_material = SubResource("ParticleProcessMaterial_p5fn2")
 draw_pass_1 = SubResource("RibbonTrailMesh_5r2bu")
 
-[node name="Fire" type="GPUParticles3D" parent="SubViewportContainer/SubViewport/Camp/VFX"]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.923367, 0.0346675, -0.309572)
-amount = 50
-lifetime = 0.4
-speed_scale = 0.4
-process_material = SubResource("ParticleProcessMaterial_xvexm")
-draw_pass_1 = SubResource("QuadMesh_hvb1l")
-
-[node name="OmniLight3D" type="OmniLight3D" parent="SubViewportContainer/SubViewport/Camp/VFX/Fire"]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.000509977, 0.121094, -0.00151992)
-light_color = Color(0.89, 0.461613, 0.2136, 1)
-light_energy = 0.716329
-light_indirect_energy = 1.084
-light_volumetric_fog_energy = 3.764
-light_size = 0.105
-shadow_enabled = true
-distance_fade_enabled = true
-distance_fade_begin = 386.01
-distance_fade_shadow = 45.9
-distance_fade_length = 28.05
-script = ExtResource("22_ukp6m")
-
 [node name="UISubViewportContainer" type="SubViewportContainer" parent="."]
 anchors_preset = 15
 anchor_right = 1.0

stages/Test3D/camera_3d.gd

@@ -1,6 +1,69 @@
 extends Camera3D
+@export var player: Node3D # Assign your player node in the editor
 
-var speed_factor = 3
+func _ready():
+	player = %Player
 
-func _physics_process(delta):
+func _process(delta):
-	position = lerp(position, %Player.position, speed_factor * delta)
+	if player:
+		check_line_of_sight_to_player()
+
+func check_line_of_sight_to_player():
+	var start_pos = global_position
+	var end_pos = player.global_position
+	var direction = (end_pos - start_pos).normalized()
+	var max_distance = start_pos.distance_to(end_pos)
+	
+	var space_state = get_world_3d().direct_space_state
+	var current_distance = 0.0
+	var hit_trees: Array[Node] = []
+	
+	# Keep casting rays until we reach the player
+	while current_distance < max_distance - 0.1:
+		var current_start = start_pos + direction * current_distance
+		var current_end = end_pos
+		
+		# Create ray query
+		var query = PhysicsRayQueryParameters3D.create(current_start, current_end)
+		var result = space_state.intersect_ray(query)
+		
+		if result.is_empty():
+			# No obstacles, clear line of sight
+			break
+		
+		var hit_object = result.collider
+		var hit_point = result.position
+		var distance_to_hit = current_start.distance_to(hit_point)
+		
+		# If we hit a tree, add it to the list
+		if hit_object.is_in_group("tree_visibility"):
+			if hit_object not in hit_trees:
+				hit_trees.append(hit_object)
+				# Only fade if player is behind the tree
+				if is_player_behind_tree(hit_object):
+					tree_is_blocking_player(hit_object)
+		
+		# Move past the hit point for next iteration
+		current_distance += distance_to_hit + 0.1
+		
+		# Safety check to prevent infinite loops
+		if distance_to_hit < 0.01:
+			current_distance += 0.5
+
+func is_player_behind_tree(tree_object: Node) -> bool:
+	var camera_pos = global_position
+	var player_pos = player.global_position
+	var tree_pos = tree_object.global_position
+	
+	# Calculate distances from camera
+	var camera_to_tree_distance = camera_pos.distance_to(tree_pos)
+	var camera_to_player_distance = camera_pos.distance_to(player_pos)
+	
+	# Tree should be faded if it's closer to camera than player
+	# (tree is between camera and player)
+	var buffer = 0.2 # Small buffer to avoid flickering
+	return camera_to_tree_distance < (camera_to_player_distance - buffer)
+
+func tree_is_blocking_player(tree_object):
+	# Fade out the blocking tree
+	tree_object.get_parent().fade_out_tree_simple()

stages/Test3D/new_environment.tres

@@ -10,11 +10,10 @@ sky_material = SubResource("ProceduralSkyMaterial_lg8b7")
 
 [resource]
 background_mode = 2
-background_color = Color(0.752941, 0.776471, 0.827451, 1)
+background_color = Color(1, 1, 0.603922, 1)
 sky = SubResource("Sky_7bk1c")
-ambient_light_source = 2
+ambient_light_source = 3
-ambient_light_color = Color(0.662745, 0.694118, 0.772549, 1)
+ambient_light_color = Color(0.800491, 0.800491, 0.800491, 1)
-ambient_light_energy = 0.5
 reflected_light_source = 2
 tonemap_mode = 2
 ssil_enabled = true