Start dynamic sky

dynamic-sky/scripts/procedural_cloud_texture.gd

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+@tool
+class_name ProceduralCloudTexture
+extends Resource
+
+@export var size: int = 512
+@export var octaves: int = 6
+@export var persistence: float = 0.5
+@export var lacunarity: float = 2.0
+@export var scale: float = 4.0
+@export var seed_value: int = 0
+@export var cloud_threshold: float = 0.4
+@export var cloud_softness: float = 0.3
+
+var _noise: FastNoiseLite
+var _texture: ImageTexture
+
+
+func _init() -> void:
+	_setup_noise()
+
+
+func _setup_noise() -> void:
+	_noise = FastNoiseLite.new()
+	_noise.noise_type = FastNoiseLite.TYPE_SIMPLEX
+	_noise.seed = seed_value
+	_noise.frequency = 1.0 / (scale * 64.0)
+	_noise.fractal_type = FastNoiseLite.FRACTAL_FBM
+	_noise.fractal_octaves = octaves
+	_noise.fractal_lacunarity = lacunarity
+	_noise.fractal_gain = persistence
+
+
+func generate() -> ImageTexture:
+	_setup_noise()
+	
+	var image := Image.create(size, size, false, Image.FORMAT_RGBA8)
+	
+	for y in size:
+		for x in size:
+			var noise_value := (_noise.get_noise_2d(float(x), float(y)) + 1.0) * 0.5
+			
+			var cloud_value := smoothstep(cloud_threshold - cloud_softness, cloud_threshold + cloud_softness, noise_value)
+			
+			var color := Color(cloud_value, cloud_value, cloud_value, cloud_value)
+			image.set_pixel(x, y, color)
+	
+	_texture = ImageTexture.create_from_image(image)
+	return _texture
+
+
+func get_texture() -> ImageTexture:
+	if _texture == null:
+		return generate()
+	return _texture
+
+
+static func create_default_cloud_texture(layer_type: int = 0) -> ImageTexture:
+	var generator := ProceduralCloudTexture.new()
+	generator.size = 512
+	
+	match layer_type:
+		0:  # Low clouds - larger, denser
+			generator.scale = 3.0
+			generator.octaves = 4
+			generator.cloud_threshold = 0.35
+			generator.cloud_softness = 0.25
+		1:  # Mid clouds - medium
+			generator.scale = 4.0
+			generator.octaves = 5
+			generator.cloud_threshold = 0.4
+			generator.cloud_softness = 0.3
+		2:  # High clouds - wispy
+			generator.scale = 6.0
+			generator.octaves = 6
+			generator.cloud_threshold = 0.5
+			generator.cloud_softness = 0.35
+		3:  # Wisps - very thin
+			generator.scale = 8.0
+			generator.octaves = 7
+			generator.cloud_threshold = 0.55
+			generator.cloud_softness = 0.4
+	
+	return generator.generate()
+
+
+static func create_shadow_texture() -> ImageTexture:
+	var generator := ProceduralCloudTexture.new()
+	generator.size = 256
+	generator.scale = 4.0
+	generator.octaves = 4
+	generator.cloud_threshold = 0.3
+	generator.cloud_softness = 0.4
+	return generator.generate()