In the same way, godot3 can display textures, godot4 can't.
Scene:
-Node2D
--TextureRect
godot3:
extends Node2D
export var height_map:NoiseTexture
onready var texture_rect: TextureRect = $TextureRect
func _ready() -> void:
var h_map:ImageTexture = domain_warp(height_map,10,0.15)
texture_rect.texture = h_map
func domain_warp(nt:NoiseTexture,strength:float,size:float)->ImageTexture:
var out:ImageTexture = ImageTexture.new()
strength = max(0,strength)
size = max(0,size)
var data:Array = []
var minmax:Vector2 = Vector2(INF,-INF)
for x in range(nt.width):
for y in range(nt.height):
var value: = strength * nt.noise.get_noise_2d(size * x,size * y)
value = nt.noise.get_noise_3d(x,y,value)
minmax.x = min(minmax.x,value)
minmax.y = max(minmax.y,value)
data.push_back(value)
var bytes:StreamPeerBuffer = StreamPeerBuffer.new()
for d in data:
bytes.put_float(range_lerp(d,minmax.x,minmax.y,0,1))
var image:Image = Image.new()
image.create_from_data(nt.width,nt.height,false,Image.FORMAT_RF,bytes.data_array)
out.create_from_image(image)
return out
godot4_beta4:
extends Node2D
@export var height_map:NoiseTexture2D
@onready var texture_rect: TextureRect = $TextureRect
func _ready() -> void:
var h_map:ImageTexture = domain_warp(height_map,10,0.15)
texture_rect.texture = h_map
func domain_warp(nt:NoiseTexture2D,strength:float,size:float)->ImageTexture:
var out:ImageTexture = ImageTexture.new()
strength = max(0,strength)
size = max(0,size)
var data:Array = []
var minmax:Vector2 = Vector2(INF,-INF)
for x in range(nt.width):
for y in range(nt.height):
var value: = strength * nt.noise.get_noise_2d(size * x,size * y)
value = nt.noise.get_noise_3d(x,y,value)
minmax.x = min(minmax.x,value)
minmax.y = max(minmax.y,value)
data.push_back(value)
var bytes:StreamPeerBuffer = StreamPeerBuffer.new()
for d in data:
bytes.put_float(remap(d,minmax.x,minmax.y,0,1))
var image:Image
image = Image.create_from_data(nt.width,nt.height,false,Image.FORMAT_RF,bytes.data_array)
out.create_from_image(image)
return out
