Start working on a noise generator node

Used for shaders that need noise textures.

Still WIP. needs the nodes to set their appropriate values when setting a noise texture. Which means I'll probably have to re-write the whole thing, yay :D

src/Classes/ShaderLoader.gd

@@ -4,6 +4,7 @@ extends RefCounted
 const VALUE_SLIDER_V2_TSCN := preload("res://src/UI/Nodes/Sliders/ValueSliderV2.tscn")
 const BASIS_SLIDERS_TSCN := preload("res://src/UI/Nodes/Sliders/BasisSliders.tscn")
 const GRADIENT_EDIT_TSCN := preload("res://src/UI/Nodes/GradientEdit.tscn")
+const NOISE_GENERATOR := preload("res://src/UI/Nodes/NoiseGeneratorDialog.tscn")
 
 
 static func create_ui_for_shader_uniforms(
@@ -261,12 +262,32 @@ static func create_ui_for_shader_uniforms(
 					curve_edit.curve = params[u_name].curve
 				else:
 					curve_edit.set_default_curve()
+					params[u_name] = CurveEdit.to_texture(curve_edit.curve)
 				curve_edit.value_changed.connect(
 					func(curve: Curve): value_changed.call(CurveEdit.to_texture(curve), u_name)
 				)
 				hbox.add_child(curve_edit)
+			elif u_name.begins_with("noise_"):
+				var noise_generator_dialog := NOISE_GENERATOR.instantiate() as AcceptDialog
+				noise_generator_dialog.always_on_top = true
+				var noise_generator := noise_generator_dialog.get_child(0) as NoiseGenerator
+				if params.has(u_name) and params[u_name] is NoiseTexture2D:
+					noise_generator.noise_texture = params[u_name]
+				else:
+					params[u_name] = noise_generator.noise_texture
+				noise_generator.value_changed.connect(
+					func(noise_texture: NoiseTexture2D): value_changed.call(noise_texture, u_name)
+				)
+				parent_node.add_child(noise_generator_dialog)
+				var button := Button.new()
+				button.text = "Generate noise"
+				button.pressed.connect(noise_generator_dialog.popup_centered)
+				button.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+				button.mouse_default_cursor_shape = Control.CURSOR_POINTING_HAND
+				hbox.add_child(button)
 			else:  ## Simple texture
 				var file_dialog := FileDialog.new()
+				file_dialog.always_on_top = true
 				file_dialog.file_mode = FileDialog.FILE_MODE_OPEN_FILE
 				file_dialog.access = FileDialog.ACCESS_FILESYSTEM
 				file_dialog.size = Vector2(384, 281)

src/UI/Nodes/NoiseGenerator.gd

@@ -0,0 +1,141 @@
+class_name NoiseGenerator
+extends ScrollContainer
+
+signal value_changed(noise_texture: NoiseTexture2D)
+
+var noise_texture: NoiseTexture2D:
+	set(value):
+		noise_texture = value
+		if not is_instance_valid(noise_texture.noise):
+			noise_texture.noise = FastNoiseLite.new()
+		if not is_instance_valid(preview):
+			await ready
+		preview.texture = noise_texture
+@onready var preview := %Preview as TextureRect
+
+
+func _init() -> void:
+	noise_texture = NoiseTexture2D.new()
+
+
+func _on_size_slider_value_changed(value: Vector2) -> void:
+	noise_texture.width = value.x
+	noise_texture.height = value.y
+	value_changed.emit(noise_texture)
+
+
+func _on_invert_check_box_toggled(toggled_on: bool) -> void:
+	noise_texture.invert = toggled_on
+	value_changed.emit(noise_texture)
+
+
+func _on_in_3d_space_check_box_toggled(toggled_on: bool) -> void:
+	noise_texture.in_3d_space = toggled_on
+	value_changed.emit(noise_texture)
+
+
+func _on_seamless_check_box_toggled(toggled_on: bool) -> void:
+	noise_texture.seamless = toggled_on
+	value_changed.emit(noise_texture)
+
+
+func _on_normal_map_check_box_toggled(toggled_on: bool) -> void:
+	noise_texture.as_normal_map = toggled_on
+	value_changed.emit(noise_texture)
+
+
+func _on_normalize_check_box_toggled(toggled_on: bool) -> void:
+	noise_texture.normalize = toggled_on
+	value_changed.emit(noise_texture)
+
+
+func _on_gradient_edit_updated(gradient: Gradient, _cc: bool) -> void:
+	noise_texture.color_ramp = gradient
+	value_changed.emit(noise_texture)
+
+
+func _on_noise_type_option_button_item_selected(index: FastNoiseLite.NoiseType) -> void:
+	(noise_texture.noise as FastNoiseLite).noise_type = index
+	value_changed.emit(noise_texture)
+
+
+func _on_seed_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).seed = value
+	value_changed.emit(noise_texture)
+
+
+func _on_frequency_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).frequency = value
+	value_changed.emit(noise_texture)
+
+
+func _on_offset_slider_value_changed(value: Vector3) -> void:
+	(noise_texture.noise as FastNoiseLite).offset = value
+	value_changed.emit(noise_texture)
+
+
+func _on_fractal_type_option_button_item_selected(index: FastNoiseLite.FractalType) -> void:
+	(noise_texture.noise as FastNoiseLite).fractal_type = index
+	value_changed.emit(noise_texture)
+
+
+func _on_fractal_octaves_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).fractal_octaves = value
+	value_changed.emit(noise_texture)
+
+
+func _on_fractal_lacunarity_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).fractal_lacunarity = value
+	value_changed.emit(noise_texture)
+
+
+func _on_fractal_gain_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).fractal_gain = value
+	value_changed.emit(noise_texture)
+
+
+func _on_fractal_weighted_strength_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).fractal_weighted_strength = value
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_enabled_check_box_toggled(toggled_on: bool) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_enabled = toggled_on
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_type_option_button_item_selected(index: FastNoiseLite.DomainWarpType) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_type = index
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_amplitude_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_amplitude = value
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_frequency_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_frequency = value
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_fractal_type_option_button_item_selected(
+	index: FastNoiseLite.DomainWarpFractalType
+) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_fractal_type = index
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_fractal_octaves_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_fractal_octaves = value
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_fractal_lacunarity_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_fractal_lacunarity = value
+	value_changed.emit(noise_texture)
+
+
+func _on_domain_warp_fractal_gain_slider_value_changed(value: float) -> void:
+	(noise_texture.noise as FastNoiseLite).domain_warp_fractal_gain = value
+	value_changed.emit(noise_texture)