godot-demo-projects/misc/noise_viewer/noise_viewer.gd

69 lines
1.8 KiB
GDScript

extends Control
## The FastNoiseLite object.
@onready var noise: FastNoiseLite = $SeamlessNoiseTexture.texture.noise
# Various noise parameters.
var min_noise = -1
var max_noise = 1
# Called when the node enters the scene tree for the first time.
func _ready():
# Set up noise with basic info.
$ParameterContainer/SeedSpinBox.value = noise.seed
$ParameterContainer/FrequencySpinBox.value = noise.frequency
$ParameterContainer/FractalOctavesSpinBox.value = noise.fractal_octaves
$ParameterContainer/FractalGainSpinBox.value = noise.fractal_gain
$ParameterContainer/FractalLacunaritySpinBox.value = noise.fractal_lacunarity
# Render the noise.
_refresh_shader_params()
func _refresh_shader_params():
# Adjust min/max for shader.
var _min = (min_noise + 1) / 2
var _max = (max_noise + 1) / 2
var _material = $SeamlessNoiseTexture.material
_material.set_shader_parameter("min_value", _min)
_material.set_shader_parameter("max_value", _max)
func _on_documentation_button_pressed():
OS.shell_open("https://docs.godotengine.org/en/latest/classes/class_fastnoiselite.html")
func _on_random_seed_button_pressed():
$ParameterContainer/SeedSpinBox.value = floor(randf_range(-2147483648, 2147483648))
func _on_seed_spin_box_value_changed(value):
noise.seed = value
func _on_frequency_spin_box_value_changed(value):
noise.frequency = value
func _on_fractal_octaves_spin_box_value_changed(value):
noise.fractal_octaves = value
func _on_fractal_gain_spin_box_value_changed(value):
noise.fractal_gain = value
func _on_fractal_lacunarity_spin_box_value_changed(value):
noise.fractal_lacunarity = value
func _on_min_clip_spin_box_value_changed(value):
min_noise = value
_refresh_shader_params()
func _on_max_clip_spin_box_value_changed(value):
max_noise = value
_refresh_shader_params()